diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 2dce933..11f27ad 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,12 +2,14 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="a7505764-040b-48e2-b2fc-8c5b579e595f" name="Default" comment="">
-      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionDetailDao.java" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionDetailTest.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionRandomExtractDaoTest.java" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionDetail.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionDetail.java" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionDetailDao.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionDetailDao.java" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java" />
       <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java" />
+      <change beforePath="$PROJECT_DIR$/src/main/resources/conf.properties" afterPath="$PROJECT_DIR$/src/main/resources/conf.properties" />
     </list>
     <ignored path="$PROJECT_DIR$/out/" />
     <ignored path="$PROJECT_DIR$/target/" />
@@ -20,108 +22,55 @@
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file leaf-file-name="UserVisitAnalyze.java" pinned="false" current-in-tab="true">
+      <file leaf-file-name="UserVisitAnalyze.java" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="430">
-              <caret line="538" column="58" lean-forward="false" selection-start-line="538" selection-start-column="58" selection-end-line="538" selection-end-column="58" />
+            <state relative-caret-position="1284">
+              <caret line="100" column="10" lean-forward="false" selection-start-line="100" selection-start-column="10" selection-end-line="100" selection-end-column="10" />
               <folding>
                 <element signature="imports" expanded="true" />
-                <element signature="e#4969#5195#0" expanded="true" />
-                <element signature="e#5194#5195#0" expanded="true" />
-                <element signature="e#5544#5769#0" expanded="true" />
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-                <element signature="e#22961#24328#0" expanded="true" />
-                <element signature="e#24327#24328#0" expanded="true" />
+                <element signature="e#4973#5199#0" expanded="true" />
+                <element signature="e#5198#5199#0" expanded="true" />
+                <element signature="e#5548#5773#0" expanded="true" />
+                <element signature="e#5772#5773#0" expanded="true" />
+                <element signature="e#6003#8821#0" expanded="true" />
+                <element signature="e#8820#8821#0" expanded="true" />
+                <element signature="e#9041#9264#0" expanded="true" />
+                <element signature="e#9263#9264#0" expanded="true" />
+                <element signature="e#9517#10531#0" expanded="true" />
+                <element signature="e#10530#10531#0" expanded="true" />
+                <element signature="e#16828#17352#0" expanded="true" />
+                <element signature="e#17351#17352#0" expanded="true" />
+                <element signature="e#17593#17620#0" expanded="true" />
+                <element signature="e#18402#18435#0" expanded="true" />
+                <element signature="e#20610#22709#0" expanded="true" />
+                <element signature="e#21076#21100#0" expanded="true" />
+                <element signature="e#21305#21327#0" expanded="true" />
+                <element signature="e#22708#22709#0" expanded="true" />
+                <element signature="e#22891#24423#0" expanded="true" />
+                <element signature="e#23158#23173#0" expanded="true" />
+                <element signature="e#24422#24423#0" expanded="true" />
               </folding>
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="DaoFactory.java" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java">
+      <file leaf-file-name="JDBCHelper.java" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="361">
-              <caret line="34" column="42" lean-forward="false" selection-start-line="34" selection-start-column="42" selection-end-line="34" selection-end-column="42" />
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-                <element signature="e#1004#1005#0" expanded="true" />
-              </folding>
+            <state relative-caret-position="473">
+              <caret line="44" column="0" lean-forward="true" selection-start-line="44" selection-start-column="0" selection-end-line="44" selection-end-column="0" />
+              <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="SessionDetail.java" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionDetail.java">
+      <file leaf-file-name="conf.properties" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/main/resources/conf.properties">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="361">
-              <caret line="19" column="5" lean-forward="true" selection-start-line="19" selection-start-column="5" selection-end-line="19" selection-end-column="5" />
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-                <element signature="e#3292#3293#0" expanded="true" />
-                <element signature="e#3342#3343#0" expanded="true" />
-              </folding>
+            <state relative-caret-position="76">
+              <caret line="4" column="14" lean-forward="false" selection-start-line="4" selection-start-column="14" selection-end-line="4" selection-end-column="14" />
+              <folding />
             </state>
           </provider>
         </entry>
@@ -129,9 +78,11 @@
       <file leaf-file-name="SessionDetailDao.java" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionDetailDao.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="95">
-              <caret line="5" column="43" lean-forward="false" selection-start-line="5" selection-start-column="43" selection-end-line="5" selection-end-column="43" />
-              <folding />
+            <state relative-caret-position="171">
+              <caret line="9" column="10" lean-forward="false" selection-start-line="9" selection-start-column="10" selection-end-line="9" selection-end-column="10" />
+              <folding>
+                <element signature="imports" expanded="true" />
+              </folding>
             </state>
           </provider>
         </entry>
@@ -139,22 +90,24 @@
       <file leaf-file-name="SessionDetailDaoImpl.java" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="266">
-              <caret line="14" column="58" lean-forward="false" selection-start-line="14" selection-start-column="58" selection-end-line="14" selection-end-column="58" />
+            <state relative-caret-position="206">
+              <caret line="20" column="0" lean-forward="true" selection-start-line="20" selection-start-column="0" selection-end-line="20" selection-end-column="0" />
               <folding>
                 <element signature="imports" expanded="true" />
+                <element signature="e#1162#1172#0" expanded="true" />
               </folding>
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="MockData.java" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/mockData/MockData.java">
+      <file leaf-file-name="SessionRandomExtractDaoTest.java" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionRandomExtractDaoTest.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="506">
-              <caret line="96" column="48" lean-forward="false" selection-start-line="96" selection-start-column="48" selection-end-line="96" selection-end-column="48" />
+            <state relative-caret-position="209">
+              <caret line="11" column="23" lean-forward="false" selection-start-line="11" selection-start-column="16" selection-end-line="11" selection-end-column="31" />
               <folding>
                 <element signature="imports" expanded="true" />
+                <element signature="e#359#381#0" expanded="true" />
               </folding>
             </state>
           </provider>
@@ -190,7 +143,6 @@
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/TaskDao.java" />
         <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/dao.java" />
         <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/json/FastJsonTest.java" />
-        <option value="$PROJECT_DIR$/src/main/resources/conf.properties" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/conf/ConfigurationManager.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/mockData/MockData.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/Task.java" />
@@ -201,7 +153,6 @@
         <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/utils/ParamUtilsTest.java" />
         <option value="$PROJECT_DIR$/pom.xml" />
         <option value="$PROJECT_DIR$/README.md" />
-        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionAggrStat.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionAggrStatDaoImpl.java" />
         <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionAggrDao.java" />
@@ -214,11 +165,15 @@
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionRandomExtractDao.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionRandomExtractDaoImpl.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDao.java" />
-        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionDetailDao.java" />
-        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionDetail.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionDetailTest.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionRandomExtractDaoTest.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionDetailDao.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java" />
+        <option value="$PROJECT_DIR$/src/main/resources/conf.properties" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java" />
       </list>
     </option>
   </component>
@@ -362,6 +317,15 @@
               <item name="dao" type="462c0819:PsiDirectoryNode" />
               <item name="impl" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
+              <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="hust" type="462c0819:PsiDirectoryNode" />
+              <item name="demo" type="462c0819:PsiDirectoryNode" />
+            </path>
             <path>
               <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
               <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
@@ -371,6 +335,15 @@
               <item name="hust" type="462c0819:PsiDirectoryNode" />
               <item name="domain" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
+              <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="hust" type="462c0819:PsiDirectoryNode" />
+              <item name="jdbc" type="462c0819:PsiDirectoryNode" />
+            </path>
             <path>
               <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
               <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
@@ -389,11 +362,25 @@
               <item name="hust" type="462c0819:PsiDirectoryNode" />
               <item name="session" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
+              <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
+              <item name="resources" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
+              <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="test" type="462c0819:PsiDirectoryNode" />
+            </path>
             <path>
               <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
               <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
               <item name="src" type="462c0819:PsiDirectoryNode" />
               <item name="test" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
             </path>
             <path>
               <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
@@ -401,6 +388,16 @@
               <item name="src" type="462c0819:PsiDirectoryNode" />
               <item name="test" type="462c0819:PsiDirectoryNode" />
               <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="hust" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
+              <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="test" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="hust" type="462c0819:PsiDirectoryNode" />
+              <item name="dao" type="462c0819:PsiDirectoryNode" />
             </path>
           </expand>
           <select />
@@ -484,19 +481,19 @@
       <module name="" />
       <envs />
     </configuration>
-    <configuration name="FastJsonTest.test1" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ParamUtilsTest.test2" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea">
         <pattern>
-          <option name="PATTERN" value="cn.edu.hust.json.*" />
+          <option name="PATTERN" value="cn.edu.hust.utils.*" />
           <option name="ENABLED" value="true" />
         </pattern>
       </extension>
       <module name="UserActionAnalyzePlatform" />
       <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
       <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="PACKAGE_NAME" value="cn.edu.hust.json" />
-      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.json.FastJsonTest" />
-      <option name="METHOD_NAME" value="test1" />
+      <option name="PACKAGE_NAME" value="cn.edu.hust.utils" />
+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.utils.ParamUtilsTest" />
+      <option name="METHOD_NAME" value="test2" />
       <option name="TEST_OBJECT" value="method" />
       <option name="VM_PARAMETERS" value="-ea" />
       <option name="PARAMETERS" />
@@ -509,19 +506,19 @@
       <envs />
       <patterns />
     </configuration>
-    <configuration name="ParamUtilsTest.test2" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="SessionAggrDao.test" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea">
         <pattern>
-          <option name="PATTERN" value="cn.edu.hust.utils.*" />
+          <option name="PATTERN" value="cn.edu.hust.dao.*" />
           <option name="ENABLED" value="true" />
         </pattern>
       </extension>
       <module name="UserActionAnalyzePlatform" />
       <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
       <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="PACKAGE_NAME" value="cn.edu.hust.utils" />
-      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.utils.ParamUtilsTest" />
-      <option name="METHOD_NAME" value="test2" />
+      <option name="PACKAGE_NAME" value="cn.edu.hust.dao" />
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+    <configuration name="SessionDetailTest.testInsert" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
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+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.dao.SessionDetailTest" />
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+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.dao.SessionRandomExtractDaoTest" />
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+            <element signature="e#4746#4747#0" expanded="false" />
+            <element signature="e#4788#4789#0" expanded="false" />
+            <element signature="e#4826#4827#0" expanded="false" />
+            <element signature="e#4888#4889#0" expanded="false" />
+            <element signature="e#4942#4943#0" expanded="false" />
+            <element signature="e#4986#4987#0" expanded="false" />
+            <element signature="e#5026#5027#0" expanded="false" />
+            <element signature="e#5092#5093#0" expanded="false" />
+            <element signature="e#5150#5151#0" expanded="false" />
+            <element signature="e#5194#5195#0" expanded="false" />
+            <element signature="e#5234#5235#0" expanded="false" />
+            <element signature="e#5300#5301#0" expanded="false" />
+            <element signature="e#5358#5359#0" expanded="false" />
+            <element signature="e#5399#5400#0" expanded="false" />
+            <element signature="e#5436#5437#0" expanded="false" />
+            <element signature="e#5496#5497#0" expanded="false" />
+            <element signature="e#5548#5549#0" expanded="false" />
           </folding>
         </state>
       </provider>
@@ -1232,14 +1126,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/constant/Constants.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="494">
-          <caret line="26" column="47" lean-forward="false" selection-start-line="26" selection-start-column="31" selection-end-line="26" selection-end-column="47" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/util/DateUtils.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="52">
@@ -1256,7 +1142,7 @@
         <state relative-caret-position="156">
           <caret line="15" column="0" lean-forward="false" selection-start-line="15" selection-start-column="0" selection-end-line="15" selection-end-column="0" />
           <folding>
-            <element signature="e#247#248#0" expanded="true" />
+            <element signature="e#247#248#0" expanded="false" />
           </folding>
         </state>
       </provider>
@@ -1284,58 +1170,13 @@
         <state relative-caret-position="473">
           <caret line="41" column="46" lean-forward="true" selection-start-line="41" selection-start-column="46" selection-end-line="41" selection-end-column="46" />
           <folding>
-            <element signature="imports" expanded="true" />
-            <element signature="e#294#295#0" expanded="true" />
-            <element signature="e#326#327#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionRandomExtract.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="38">
-          <caret line="4" column="33" lean-forward="false" selection-start-line="4" selection-start-column="13" selection-end-line="4" selection-end-column="33" />
-          <folding>
-            <element signature="e#680#681#0" expanded="true" />
-            <element signature="e#709#710#0" expanded="true" />
-            <element signature="e#751#752#0" expanded="true" />
-            <element signature="e#787#788#0" expanded="true" />
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-            <element signature="e#1451#1452#0" expanded="true" />
-            <element signature="e#1511#1512#0" expanded="true" />
+            <element signature="imports" expanded="false" />
+            <element signature="e#294#295#0" expanded="false" />
+            <element signature="e#326#327#0" expanded="false" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.5.1/spark-core_2.10-1.5.1.jar!/org/apache/spark/api/java/JavaPairRDD.class">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="109">
-          <caret line="128" column="0" lean-forward="true" selection-start-line="128" selection-start-column="0" selection-end-line="128" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="266">
-          <caret line="154" column="17" lean-forward="false" selection-start-line="154" selection-start-column="17" selection-end-line="154" selection-end-column="17" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionRandomExtractDao.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="133">
@@ -1351,19 +1192,11 @@
         <state relative-caret-position="228">
           <caret line="17" column="34" lean-forward="false" selection-start-line="17" selection-start-column="34" selection-end-line="17" selection-end-column="34" />
           <folding>
-            <element signature="e#511#521#0" expanded="true" />
+            <element signature="e#511#521#0" expanded="false" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionDetailDao.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="95">
-          <caret line="5" column="43" lean-forward="false" selection-start-line="5" selection-start-column="43" selection-end-line="5" selection-end-column="43" />
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-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionDetail.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="361">
@@ -1421,22 +1254,12 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="266">
-          <caret line="14" column="58" lean-forward="false" selection-start-line="14" selection-start-column="58" selection-end-line="14" selection-end-column="58" />
-          <folding>
-            <element signature="imports" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/mockData/MockData.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="506">
           <caret line="96" column="48" lean-forward="false" selection-start-line="96" selection-start-column="48" selection-end-line="96" selection-end-column="48" />
           <folding>
-            <element signature="imports" expanded="true" />
+            <element signature="imports" expanded="false" />
           </folding>
         </state>
       </provider>
@@ -1454,36 +1277,201 @@
         </state>
       </provider>
     </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.5.1/spark-core_2.10-1.5.1.jar!/org/apache/spark/api/java/AbstractJavaRDDLike.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="208">
+          <caret line="346" column="0" lean-forward="false" selection-start-line="346" selection-start-column="0" selection-end-line="346" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.4/scala-library-2.10.4.jar!/scala/Function1$class.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="303">
+          <caret line="312" column="0" lean-forward="false" selection-start-line="312" selection-start-column="0" selection-end-line="312" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.4/scala-library-2.10.4.jar!/scala/runtime/AbstractFunction1.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="284">
+          <caret line="316" column="0" lean-forward="false" selection-start-line="316" selection-start-column="0" selection-end-line="316" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.5.1/spark-core_2.10-1.5.1.jar!/org/apache/spark/api/java/JavaPairRDD.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="306">
+          <caret line="228" column="0" lean-forward="false" selection-start-line="228" selection-start-column="0" selection-end-line="228" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.5.1/spark-core_2.10-1.5.1.jar!/org/apache/spark/api/java/JavaPairRDD$.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="151">
+          <caret line="104" column="0" lean-forward="false" selection-start-line="104" selection-start-column="0" selection-end-line="104" selection-end-column="0" />
+          <folding>
+            <element signature="e#5869#6059#0" expanded="true" />
+            <element signature="e#6058#6059#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.5.1/spark-core_2.10-1.5.1.jar!/org/apache/spark/api/java/JavaRDDLike$class.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="135">
+          <caret line="405" column="0" lean-forward="false" selection-start-line="405" selection-start-column="0" selection-end-line="405" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.4/scala-library-2.10.4.jar!/scala/reflect/ClassTag$.class">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="135">
+          <caret line="179" column="0" lean-forward="false" selection-start-line="179" selection-start-column="0" selection-end-line="179" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/constant/Constants.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-224">
+          <caret line="2" column="13" lean-forward="false" selection-start-line="2" selection-start-column="13" selection-end-line="2" selection-end-column="13" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionDetailTest.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="152">
+          <caret line="8" column="20" lean-forward="true" selection-start-line="8" selection-start-column="16" selection-end-line="8" selection-end-column="26" />
+          <folding>
+            <element signature="imports" expanded="false" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionRandomExtract.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="209">
+          <caret line="11" column="11" lean-forward="false" selection-start-line="11" selection-start-column="11" selection-end-line="11" selection-end-column="11" />
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+            <element signature="e#680#681#0" expanded="true" />
+            <element signature="e#709#710#0" expanded="true" />
+            <element signature="e#751#752#0" expanded="true" />
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+            <element signature="e#1451#1452#0" expanded="true" />
+            <element signature="e#1511#1512#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionRandomExtractDaoTest.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="209">
+          <caret line="11" column="23" lean-forward="false" selection-start-line="11" selection-start-column="16" selection-end-line="11" selection-end-column="31" />
+          <folding>
+            <element signature="imports" expanded="true" />
+            <element signature="e#359#381#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionDetailDao.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="171">
+          <caret line="9" column="10" lean-forward="false" selection-start-line="9" selection-start-column="10" selection-end-line="9" selection-end-column="10" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="206">
+          <caret line="20" column="0" lean-forward="true" selection-start-line="20" selection-start-column="0" selection-end-line="20" selection-end-column="0" />
+          <folding>
+            <element signature="imports" expanded="true" />
+            <element signature="e#1162#1172#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
     <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="430">
-          <caret line="538" column="58" lean-forward="false" selection-start-line="538" selection-start-column="58" selection-end-line="538" selection-end-column="58" />
+        <state relative-caret-position="1284">
+          <caret line="100" column="10" lean-forward="false" selection-start-line="100" selection-start-column="10" selection-end-line="100" selection-end-column="10" />
           <folding>
             <element signature="imports" expanded="true" />
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-            <element signature="e#22961#24328#0" expanded="true" />
-            <element signature="e#24327#24328#0" expanded="true" />
+            <element signature="e#4973#5199#0" expanded="true" />
+            <element signature="e#5198#5199#0" expanded="true" />
+            <element signature="e#5548#5773#0" expanded="true" />
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+            <element signature="e#8820#8821#0" expanded="true" />
+            <element signature="e#9041#9264#0" expanded="true" />
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+            <element signature="e#9517#10531#0" expanded="true" />
+            <element signature="e#10530#10531#0" expanded="true" />
+            <element signature="e#16828#17352#0" expanded="true" />
+            <element signature="e#17351#17352#0" expanded="true" />
+            <element signature="e#17593#17620#0" expanded="true" />
+            <element signature="e#18402#18435#0" expanded="true" />
+            <element signature="e#20610#22709#0" expanded="true" />
+            <element signature="e#21076#21100#0" expanded="true" />
+            <element signature="e#21305#21327#0" expanded="true" />
+            <element signature="e#22708#22709#0" expanded="true" />
+            <element signature="e#22891#24423#0" expanded="true" />
+            <element signature="e#23158#23173#0" expanded="true" />
+            <element signature="e#24422#24423#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/resources/conf.properties">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="76">
+          <caret line="4" column="14" lean-forward="false" selection-start-line="4" selection-start-column="14" selection-end-line="4" selection-end-column="14" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="171">
+          <caret line="9" column="0" lean-forward="true" selection-start-line="9" selection-start-column="0" selection-end-line="9" selection-end-column="0" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="473">
+          <caret line="44" column="0" lean-forward="true" selection-start-line="44" selection-start-column="0" selection-end-line="44" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
   </component>
   <component name="masterDetails">
     <states>
diff --git a/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java b/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java
index 7619b18..00f6823 100644
--- a/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java
+++ b/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java
@@ -2,6 +2,8 @@ package cn.edu.hust.dao;
 
 import cn.edu.hust.domain.SessionAggrStat;
 
-public interface SessionAggrStatDao {
+import java.io.Serializable;
+
+public interface SessionAggrStatDao extends Serializable{
     void insert(SessionAggrStat sessionAggrStat);
 }
diff --git a/src/main/java/cn/edu/hust/dao/SessionDetailDao.java b/src/main/java/cn/edu/hust/dao/SessionDetailDao.java
index 5eabddd..5195b42 100644
--- a/src/main/java/cn/edu/hust/dao/SessionDetailDao.java
+++ b/src/main/java/cn/edu/hust/dao/SessionDetailDao.java
@@ -2,6 +2,10 @@ package cn.edu.hust.dao;
 
 import cn.edu.hust.domain.SessionDetail;
 
-public interface SessionDetailDao {
+import java.io.Serializable;
+import java.util.List;
+
+public interface SessionDetailDao extends Serializable{
     void insert(SessionDetail sessionDetail);
+    void batchInsert(List<SessionDetail> sessionDetailList);
 }
diff --git a/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java b/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java
index f476814..0aac7a9 100644
--- a/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java
+++ b/src/main/java/cn/edu/hust/dao/impl/SessionDetailDaoImpl.java
@@ -4,6 +4,10 @@ import cn.edu.hust.dao.SessionDetailDao;
 import cn.edu.hust.domain.SessionDetail;
 import cn.edu.hust.jdbc.JDBCHelper;
 
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
 public class SessionDetailDaoImpl implements SessionDetailDao{
     @Override
     public void insert(SessionDetail sessionDetail) {
@@ -14,4 +18,19 @@ public class SessionDetailDaoImpl implements SessionDetailDao{
         ,sessionDetail.getOrderCategoryIds(),sessionDetail.getOrderProductIds(),sessionDetail.getPayCategoryIds(),sessionDetail.getPayProductIds()};
         JDBCHelper.getInstance().excuteUpdate(sql,object);
     }
+
+    @Override
+    public void batchInsert(List<SessionDetail> sessionDetailList) {
+        String sql="insert into session_detail values(?,?,?,?,?,?,?,?,?,?,?,?)";
+        List<Object[]> paramList=new ArrayList<Object[]>();
+        for (SessionDetail sessionDetail:sessionDetailList)
+        {
+            Object[] object=new  Object[]{sessionDetail.getTaskId(),sessionDetail.getUserId(),
+                    sessionDetail.getSessinId(),sessionDetail.getPageid(),sessionDetail.getActionTime(),
+                    sessionDetail.getSearchKeyWord(),sessionDetail.getClickCategoryId(),sessionDetail.getClickProductId()
+                    ,sessionDetail.getOrderCategoryIds(),sessionDetail.getOrderProductIds(),sessionDetail.getPayCategoryIds(),sessionDetail.getPayProductIds()};
+            paramList.add(object);
+        }
+        JDBCHelper.getInstance().excuteBatch(sql,paramList);
+    }
 }
diff --git a/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java b/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java
index 6001b6b..4923504 100644
--- a/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java
+++ b/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java
@@ -91,12 +91,14 @@ public class UserVisitAnalyze {
          *         如果不考虑性能的话，就会导致一个大数据处理程序运行长达数个小时，甚至是数个小时，对用户的体验，简直是
          *         一场灾难。
          */
-        //在使用Accumulutor之前，需要使用Action算子，否则获取的值为空，这里随机计算
-        filteredSessionRDD.count();
+
         /**
          * 使用CountByKey算子实现随机抽取功能
          */
         randomExtractSession(taskId,filteredSessionRDD,sessionInfoPairRDD);
+
+        //在使用Accumulutor之前，需要使用Action算子，否则获取的值为空，这里随机计算
+        //filteredSessionRDD.count();
         //计算各个session占比,并写入MySQL
         calculateAndPersist(sessionAggrStatAccumulator.value(),taskId);
         //关闭spark上下文
@@ -233,7 +235,7 @@ public class UserVisitAnalyze {
                 String clickCategoryIdsInfo=StringUtils.trimComma(clickCategoryIds.toString());
                 String info=Constants.FIELD_SESSIONID+"="+sessionId+"|"+Constants.FIELD_SERACH_KEYWORDS+"="+searchKeywordsInfo+"|"
                         +Constants.FIELD_CLICK_CATEGORYIDS+"="+clickCategoryIdsInfo+"|"+Constants.FIELD_VISIT_LENGTH+"="+visitLengtth+"|"
-                        +Constants.FIELD_STEP_LENGTH+"="+stepLength+"|"+Constants.FIELD_START_TIME+"="+startTime;
+                        +Constants.FIELD_STEP_LENGTH+"="+stepLength+"|"+Constants.FIELD_START_TIME+"="+DateUtils.formatTime(startTime);
                 return new Tuple2<Long, String>(userId,info);
             }
         });
@@ -293,7 +295,7 @@ public class UserVisitAnalyze {
         String keyWords=ParamUtils.getParam(taskParam,Constants.PARAM_SERACH_KEYWORDS);
         String categoryIds=ParamUtils.getParam(taskParam,Constants.PARAM_CLICK_CATEGORYIDS);
 
-        //拼接时间
+        //拼接参数
         String _paramter=(startAge!=null?Constants.PARAM_STARTAGE+"="+startAge+"|":"")+
                 (endAge!=null?Constants.PARAM_ENDAGE+"="+endAge+"|":"")+(professionals!=null?Constants.PARAM_PROFESSONALS+"="+professionals+"|":"")+
                 (cities!=null?Constants.PARAM_CIYTIES+"="+cities+"|":"")+(sex!=null?Constants.PARAM_SEX+"="+sex+"|":"")+
@@ -452,7 +454,7 @@ public class UserVisitAnalyze {
                 int extractSize= (int) ((double) hourCountMap.getValue()/sessionCount*countPerday);
 
                 //如果抽离的长度大于被抽取数据的长度，那么抽取的长度就是被抽取长度
-                extractSize= extractSize>hourCountMap.getValue()?  hourCountMap.getValue().intValue():extractSize;
+                extractSize= extractSize>hourCountMap.getValue()?hourCountMap.getValue().intValue():extractSize;
 
                 //获取存储每一个小时的List
                 List<Long> indexList=dayExtactMap.get(hourCountMap.getKey());
@@ -467,7 +469,7 @@ public class UserVisitAnalyze {
                 {
                     int index=random.nextInt(hourCountMap.getValue().intValue());
                     //如果包含，那么一直循环直到不包含为止
-                    while(indexList.contains(Long.valueOf(index)));
+                    while(indexList.contains(Long.valueOf(index)))
                         index=random.nextInt(hourCountMap.getValue().intValue());
                     indexList.add(Long.valueOf(index));
                 }
@@ -490,9 +492,8 @@ public class UserVisitAnalyze {
                 //使用一个list保存需要持久化到数据库的对象
                 List<SessionRandomExtract> sessionRandomExtractList=new ArrayList<SessionRandomExtract>();
                 int index=0;
-                for (String infos:
-                        tuple2._2) {
-                    if(indexList.contains(index))
+                for (String infos:tuple2._2) {
+                    if(indexList.contains(Long.valueOf(index)))
                     {
                         //构建SessionRandomExtract
                         SessionRandomExtract sessionRandomExtract=new SessionRandomExtract();
@@ -515,10 +516,10 @@ public class UserVisitAnalyze {
 
         //3. 获取session的明细数据保存到数据库
         JavaPairRDD<String,Tuple2<String,Row>> sessionDetailRDD= sessionIds.join(sessionInfoPairRDD);
-        final SessionDetailDao sessionDetailDao=DaoFactory.getSessionDetailDao();
         sessionDetailRDD.foreachPartition(new VoidFunction<Iterator<Tuple2<String, Tuple2<String, Row>>>>() {
             @Override
             public void call(Iterator<Tuple2<String, Tuple2<String, Row>>> tuple2Iterator) throws Exception {
+                List<SessionDetail> sessionDetailList=new ArrayList<SessionDetail>();
                 while(tuple2Iterator.hasNext())
                 {
                     Tuple2<String, Tuple2<String, Row>> tuple2=tuple2Iterator.next();
@@ -536,8 +537,9 @@ public class UserVisitAnalyze {
                     String payProducetId=row.getString(11);
                     SessionDetail sessionDetail=new SessionDetail();
                     sessionDetail.set(taskId,userId,sessionId,pageId,actionTime,searchKeyWard,clickCategoryId,clickProducetId,orderCategoryId,orderProducetId,payCategoryId,payProducetId);
-                    sessionDetailDao.insert(sessionDetail);
+                    sessionDetailList.add(sessionDetail);
                 }
+                DaoFactory.getSessionDetailDao().batchInsert(sessionDetailList);
             }
         });
 
@@ -545,7 +547,7 @@ public class UserVisitAnalyze {
 
     //计算各个范围的占比，并持久化到数据库
     private static void calculateAndPersist(String value,Long taskId) {
-        System.out.println(value);
+        //System.out.println(value);
         Long sessionCount=Long.valueOf(StringUtils.getFieldFromConcatString(value,"\\|",Constants.SESSION_COUNT));
         //各个范围的访问时长
         Double visit_Length_1s_3s=Double.valueOf(StringUtils.getFieldFromConcatString(value,"\\|",Constants.TIME_PERIOD_1s_3s));
diff --git a/src/main/resources/conf.properties b/src/main/resources/conf.properties
index 97b31cb..2e8b6dd 100644
--- a/src/main/resources/conf.properties
+++ b/src/main/resources/conf.properties
@@ -2,5 +2,5 @@ jdbc.driver=com.mysql.jdbc.Driver
 jdbc.url=jdbc:mysql://10.211.55.16:3306/BigDataPlatm?useUnicode=true&&characterEncoding=UTF-8
 jdbc.username=root
 jdbc.password=root
-jdbc.active=10
+jdbc.active=20
 spark.local=true;
diff --git a/src/test/java/cn/edu/hust/dao/SessionDetailTest.java b/src/test/java/cn/edu/hust/dao/SessionDetailTest.java
new file mode 100644
index 0000000..41e7390
--- /dev/null
+++ b/src/test/java/cn/edu/hust/dao/SessionDetailTest.java
@@ -0,0 +1,15 @@
+package cn.edu.hust.dao;
+
+import cn.edu.hust.dao.factory.DaoFactory;
+import cn.edu.hust.domain.SessionDetail;
+import org.junit.Test;
+
+public class SessionDetailTest {
+    @Test
+    public void testInsert()
+    {
+        SessionDetail sessionDetail=new SessionDetail();
+        sessionDetail.set(1L,1L,"1",1L,"1","1",1L,1L,"1","1","1","1");
+        DaoFactory.getSessionDetailDao().insert(sessionDetail);
+    }
+}
diff --git a/src/test/java/cn/edu/hust/dao/SessionRandomExtractDaoTest.java b/src/test/java/cn/edu/hust/dao/SessionRandomExtractDaoTest.java
new file mode 100644
index 0000000..a0c04f0
--- /dev/null
+++ b/src/test/java/cn/edu/hust/dao/SessionRandomExtractDaoTest.java
@@ -0,0 +1,24 @@
+package cn.edu.hust.dao;
+
+import cn.edu.hust.dao.factory.DaoFactory;
+import cn.edu.hust.domain.SessionRandomExtract;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class SessionRandomExtractDaoTest {
+    @Test
+    public void testBatchInsert()
+    {
+        List<SessionRandomExtract> sessionRandomExtractList=new ArrayList<SessionRandomExtract>();
+        SessionRandomExtract sessionRandomExtract1=new SessionRandomExtract();
+        sessionRandomExtract1.set(1L,"1","2","3","4");
+        SessionRandomExtract sessionRandomExtract2=new SessionRandomExtract();
+        sessionRandomExtract2.set(2L,"1","2","3","4");
+
+        sessionRandomExtractList.add(sessionRandomExtract1);
+        sessionRandomExtractList.add(sessionRandomExtract2);
+        DaoFactory.getSessionRandomExtractDao().batchInsert(sessionRandomExtractList);
+    }
+}
diff --git a/target/classes/conf.properties b/target/classes/conf.properties
index 97b31cb..2e8b6dd 100644
--- a/target/classes/conf.properties
+++ b/target/classes/conf.properties
@@ -2,5 +2,5 @@ jdbc.driver=com.mysql.jdbc.Driver
 jdbc.url=jdbc:mysql://10.211.55.16:3306/BigDataPlatm?useUnicode=true&&characterEncoding=UTF-8
 jdbc.username=root
 jdbc.password=root
-jdbc.active=10
+jdbc.active=20
 spark.local=true;