diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index f1dce1c..3418743 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,52 +2,13 @@
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-      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/TaskDaoImpl.java" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/demo/Singleton.java" />
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+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionAggrStat.java" />
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-      <change beforePath="$PROJECT_DIR$/target/classes/conf.properties" afterPath="$PROJECT_DIR$/target/classes/conf.properties" />
+      <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/session/UserVisitAnalyze.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java" />
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@@ -63,18 +24,115 @@
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+      <file leaf-file-name="SessionAggrStatDaoImpl.java" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionAggrStatDaoImpl.java">
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+                <element signature="imports" expanded="true" />
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+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="SessionAggrDao.java" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionAggrDao.java">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="152">
+              <caret line="8" column="18" lean-forward="true" selection-start-line="8" selection-start-column="16" selection-end-line="8" selection-end-column="20" />
               <folding>
                 <element signature="imports" expanded="true" />
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@@ -129,7 +187,6 @@
         <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/jdbc/JDBCHelperTest.java" />
         <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/main/java/cn/edu/hust/dao/factory/DaoFactory.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" />
@@ -146,6 +203,11 @@
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/DateUtils.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/constant/Constants.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java" />
+        <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/main/java/cn/edu/hust/dao/factory/DaoFactory.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionAggrDao.java" />
       </list>
     </option>
   </component>
@@ -257,7 +319,35 @@
               <item name="main" type="462c0819:PsiDirectoryNode" />
               <item name="java" type="462c0819:PsiDirectoryNode" />
               <item name="hust" type="462c0819:PsiDirectoryNode" />
-              <item name="constant" type="462c0819:PsiDirectoryNode" />
+              <item name="dao" 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="dao" type="462c0819:PsiDirectoryNode" />
+              <item name="factory" 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="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" />
@@ -277,6 +367,36 @@
               <item name="hust" type="462c0819:PsiDirectoryNode" />
               <item name="util" 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" />
+              <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" />
+            </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 />
         </subPane>
@@ -319,7 +439,7 @@
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     </option>
   </component>
-  <component name="RunManager" selected="Application.UserVisitAnalyze">
+  <component name="RunManager" selected="JUnit.SessionAggrDao.test">
     <configuration default="true" type="Applet" factoryName="Applet">
       <option name="HTML_USED" value="false" />
       <option name="WIDTH" value="400" />
@@ -385,19 +505,19 @@
       <envs />
       <patterns />
     </configuration>
-    <configuration name="JDBCHelperTest.testBatch" 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.jdbc.*" />
+          <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.jdbc" />
-      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.jdbc.JDBCHelperTest" />
-      <option name="METHOD_NAME" value="testBatch" />
+      <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" />
@@ -410,19 +530,19 @@
       <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" />
+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.dao.SessionAggrDao" />
+      <option name="METHOD_NAME" value="test" />
       <option name="TEST_OBJECT" value="method" />
       <option name="VM_PARAMETERS" value="-ea" />
       <option name="PARAMETERS" />
@@ -521,19 +641,19 @@
       <predefined_log_file id="idea.log" enabled="true" />
     </configuration>
     <list size="5">
-      <item index="0" class="java.lang.String" itemvalue="JUnit.JDBCHelperTest.testBatch" />
-      <item index="1" class="java.lang.String" itemvalue="JUnit.TaskDaoTest.testDao" />
-      <item index="2" class="java.lang.String" itemvalue="JUnit.FastJsonTest.test1" />
-      <item index="3" class="java.lang.String" itemvalue="Application.UserVisitAnalyze" />
-      <item index="4" class="java.lang.String" itemvalue="JUnit.ParamUtilsTest.test2" />
+      <item index="0" class="java.lang.String" itemvalue="JUnit.TaskDaoTest.testDao" />
+      <item index="1" class="java.lang.String" itemvalue="JUnit.FastJsonTest.test1" />
+      <item index="2" class="java.lang.String" itemvalue="Application.UserVisitAnalyze" />
+      <item index="3" class="java.lang.String" itemvalue="JUnit.ParamUtilsTest.test2" />
+      <item index="4" class="java.lang.String" itemvalue="JUnit.SessionAggrDao.test" />
     </list>
     <recent_temporary>
       <list size="5">
-        <item index="0" class="java.lang.String" itemvalue="Application.UserVisitAnalyze" />
-        <item index="1" class="java.lang.String" itemvalue="JUnit.ParamUtilsTest.test2" />
-        <item index="2" class="java.lang.String" itemvalue="JUnit.TaskDaoTest.testDao" />
-        <item index="3" class="java.lang.String" itemvalue="JUnit.FastJsonTest.test1" />
-        <item index="4" class="java.lang.String" itemvalue="JUnit.JDBCHelperTest.testBatch" />
+        <item index="0" class="java.lang.String" itemvalue="JUnit.SessionAggrDao.test" />
+        <item index="1" class="java.lang.String" itemvalue="Application.UserVisitAnalyze" />
+        <item index="2" class="java.lang.String" itemvalue="JUnit.ParamUtilsTest.test2" />
+        <item index="3" class="java.lang.String" itemvalue="JUnit.TaskDaoTest.testDao" />
+        <item index="4" class="java.lang.String" itemvalue="JUnit.FastJsonTest.test1" />
       </list>
     </recent_temporary>
   </component>
@@ -553,7 +673,7 @@
       <workItem from="1529588426161" duration="1034000" />
       <workItem from="1529590333052" duration="2564000" />
       <workItem from="1529630336674" duration="15098000" />
-      <workItem from="1529666057370" duration="10578000" />
+      <workItem from="1529666057370" duration="13151000" />
     </task>
     <task id="LOCAL-00001" summary="1.环境搭建完成&#10;2.相关的工具类编写完成&#10;3.配置文件管理类编写完成">
       <created>1529592741848</created>
@@ -573,9 +693,6 @@
     <servers />
   </component>
   <component name="TestHistory">
-    <history-entry file="JDBCHelperTest_testQuery - 2018.06.22 at 11h 40m 05s.xml">
-      <configuration name="JDBCHelperTest.testQuery" configurationId="JUnit" />
-    </history-entry>
     <history-entry file="ParamUtilsTest_test2 - 2018.06.22 at 20h 22m 02s.xml">
       <configuration name="ParamUtilsTest.test2" configurationId="JUnit" />
     </history-entry>
@@ -588,6 +705,9 @@
     <history-entry file="ParamUtilsTest_test2 - 2018.06.22 at 20h 27m 46s.xml">
       <configuration name="ParamUtilsTest.test2" configurationId="JUnit" />
     </history-entry>
+    <history-entry file="SessionAggrDao_test - 2018.06.22 at 23h 11m 57s.xml">
+      <configuration name="SessionAggrDao.test" configurationId="JUnit" />
+    </history-entry>
     <history-entry file="TaskDaoTest_testDao - 2018.06.22 at 14h 48m 43s.xml">
       <configuration name="TaskDaoTest.testDao" configurationId="JUnit" />
     </history-entry>
@@ -605,7 +725,7 @@
     </history-entry>
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="29274000" />
+    <option name="totallyTimeSpent" value="31847000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="0" width="1440" height="900" extended-state="0" />
@@ -894,18 +1014,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="133">
-          <caret line="7" column="13" lean-forward="false" selection-start-line="7" selection-start-column="13" selection-end-line="7" selection-end-column="13" />
-          <folding>
-            <element signature="imports" expanded="false" />
-            <element signature="e#222#223#0" expanded="false" />
-            <element signature="e#262#263#0" expanded="false" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/test/java/cn/edu/hust/json/FastJsonTest.java">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="133">
@@ -1089,20 +1197,130 @@
         </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="95">
+          <caret line="5" column="47" lean-forward="false" selection-start-line="5" selection-start-column="47" selection-end-line="5" selection-end-column="47" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/SessionAggrStat.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="58">
+          <caret line="114" column="27" lean-forward="false" selection-start-line="114" selection-start-column="27" selection-end-line="114" selection-end-column="27" />
+          <folding>
+            <element signature="e#2125#2126#0" expanded="true" />
+            <element signature="e#2154#2155#0" expanded="true" />
+            <element signature="e#2196#2197#0" expanded="true" />
+            <element signature="e#2232#2233#0" expanded="true" />
+            <element signature="e#2269#2270#0" expanded="true" />
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+            <element signature="e#2446#2447#0" expanded="true" />
+            <element signature="e#2487#2488#0" expanded="true" />
+            <element signature="e#2555#2556#0" expanded="true" />
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+            <element signature="e#3090#3091#0" expanded="true" />
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+            <element signature="e#3359#3360#0" expanded="true" />
+            <element signature="e#3540#3541#0" expanded="true" />
+            <element signature="e#3581#3582#0" expanded="true" />
+            <element signature="e#3649#3650#0" expanded="true" />
+            <element signature="e#3709#3710#0" expanded="true" />
+            <element signature="e#3755#3756#0" expanded="true" />
+            <element signature="e#3797#3798#0" expanded="true" />
+            <element signature="e#3865#3866#0" expanded="true" />
+            <element signature="e#3926#3927#0" expanded="true" />
+            <element signature="e#3973#3974#0" expanded="true" />
+            <element signature="e#4016#4017#0" expanded="true" />
+            <element signature="e#4195#4196#0" expanded="true" />
+            <element signature="e#4234#4235#0" expanded="true" />
+            <element signature="e#4298#4299#0" expanded="true" />
+            <element signature="e#4354#4355#0" expanded="true" />
+            <element signature="e#4396#4397#0" expanded="true" />
+            <element signature="e#4434#4435#0" expanded="true" />
+            <element signature="e#4496#4497#0" expanded="true" />
+            <element signature="e#4550#4551#0" expanded="true" />
+            <element signature="e#4592#4593#0" expanded="true" />
+            <element signature="e#4630#4631#0" expanded="true" />
+            <element signature="e#4692#4693#0" expanded="true" />
+            <element signature="e#4746#4747#0" expanded="true" />
+            <element signature="e#4788#4789#0" expanded="true" />
+            <element signature="e#4826#4827#0" expanded="true" />
+            <element signature="e#4888#4889#0" expanded="true" />
+            <element signature="e#4942#4943#0" expanded="true" />
+            <element signature="e#4986#4987#0" expanded="true" />
+            <element signature="e#5026#5027#0" expanded="true" />
+            <element signature="e#5092#5093#0" expanded="true" />
+            <element signature="e#5150#5151#0" expanded="true" />
+            <element signature="e#5194#5195#0" expanded="true" />
+            <element signature="e#5234#5235#0" expanded="true" />
+            <element signature="e#5300#5301#0" expanded="true" />
+            <element signature="e#5358#5359#0" expanded="true" />
+            <element signature="e#5399#5400#0" expanded="true" />
+            <element signature="e#5436#5437#0" expanded="true" />
+            <element signature="e#5496#5497#0" expanded="true" />
+            <element signature="e#5548#5549#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/SessionAggrStatDaoImpl.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="342">
+          <caret line="18" column="58" lean-forward="false" selection-start-line="18" selection-start-column="58" selection-end-line="18" 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/dao/factory/DaoFactory.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="247">
+          <caret line="19" column="44" lean-forward="false" selection-start-line="19" selection-start-column="44" selection-end-line="19" selection-end-column="44" />
+          <folding>
+            <element signature="e#425#426#0" expanded="true" />
+            <element signature="e#476#477#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/SessionAggrDao.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="152">
+          <caret line="8" column="18" lean-forward="true" selection-start-line="8" selection-start-column="16" selection-end-line="8" selection-end-column="20" />
+          <folding>
+            <element signature="imports" 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="400">
-          <caret line="304" column="26" lean-forward="false" selection-start-line="304" selection-start-column="26" selection-end-line="304" selection-end-column="26" />
+        <state relative-caret-position="4652">
+          <caret line="357" column="0" lean-forward="false" selection-start-line="357" selection-start-column="0" selection-end-line="357" selection-end-column="0" />
           <folding>
             <element signature="imports" expanded="true" />
-            <element signature="e#4523#4748#0" expanded="true" />
-            <element signature="e#4747#4748#0" expanded="true" />
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-            <element signature="e#7939#8162#0" expanded="true" />
-            <element signature="e#8161#8162#0" expanded="true" />
-            <element signature="e#8415#9429#0" expanded="true" />
-            <element signature="e#9428#9429#0" expanded="true" />
+            <element signature="e#4629#4854#0" expanded="true" />
+            <element signature="e#4853#4854#0" expanded="true" />
+            <element signature="e#5084#7825#0" expanded="true" />
+            <element signature="e#7824#7825#0" expanded="true" />
+            <element signature="e#8045#8268#0" expanded="true" />
+            <element signature="e#8267#8268#0" expanded="true" />
+            <element signature="e#8521#9535#0" expanded="true" />
+            <element signature="e#9534#9535#0" expanded="true" />
           </folding>
         </state>
       </provider>
diff --git a/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java b/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java
new file mode 100644
index 0000000..7619b18
--- /dev/null
+++ b/src/main/java/cn/edu/hust/dao/SessionAggrStatDao.java
@@ -0,0 +1,7 @@
+package cn.edu.hust.dao;
+
+import cn.edu.hust.domain.SessionAggrStat;
+
+public interface SessionAggrStatDao {
+    void insert(SessionAggrStat sessionAggrStat);
+}
diff --git a/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java b/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java
index dc4cade..0066faf 100644
--- a/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java
+++ b/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java
@@ -1,6 +1,8 @@
 package cn.edu.hust.dao.factory;
 
+import cn.edu.hust.dao.SessionAggrStatDao;
 import cn.edu.hust.dao.TaskDao;
+import cn.edu.hust.dao.impl.SessionAggrStatDaoImpl;
 import cn.edu.hust.dao.impl.TaskDaoImpl;
 
 public class DaoFactory {
@@ -12,4 +14,9 @@ public class DaoFactory {
     {
         return new TaskDaoImpl();
     }
+
+    public static SessionAggrStatDao getSessionAggrStatDao()
+    {
+        return new SessionAggrStatDaoImpl();
+    }
 }
diff --git a/src/main/java/cn/edu/hust/dao/impl/SessionAggrStatDaoImpl.java b/src/main/java/cn/edu/hust/dao/impl/SessionAggrStatDaoImpl.java
new file mode 100644
index 0000000..b3f944c
--- /dev/null
+++ b/src/main/java/cn/edu/hust/dao/impl/SessionAggrStatDaoImpl.java
@@ -0,0 +1,21 @@
+package cn.edu.hust.dao.impl;
+
+import cn.edu.hust.dao.SessionAggrStatDao;
+import cn.edu.hust.domain.SessionAggrStat;
+import cn.edu.hust.jdbc.JDBCHelper;
+
+public class SessionAggrStatDaoImpl implements SessionAggrStatDao{
+    @Override
+    public void insert(SessionAggrStat sessionAggrStat) {
+        String sql="insert into session_aggr_stat values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
+        Object[] params={sessionAggrStat.getTaskId(),sessionAggrStat.getSessionCount(),sessionAggrStat.getVisit_Length_1s_3s(),
+                sessionAggrStat.getVisit_Length_4s_6s(),sessionAggrStat.getVisit_Length_7s_9s(),
+                sessionAggrStat.getVisit_Length_10s_30s(),sessionAggrStat.getVisit_Length_30s_60s(),
+                sessionAggrStat.getVisit_Length_1m_3m(),sessionAggrStat.getVisit_Length_3m_10m()
+                ,sessionAggrStat.getVisit_Length_10m_30m(),sessionAggrStat.getVisit_Length_30m(),
+                sessionAggrStat.getStep_Length_1_3(),sessionAggrStat.getStep_Length_4_6(),sessionAggrStat.getStep_Length_7_9(),
+                sessionAggrStat.getStep_Length_7_9(),sessionAggrStat.getStep_Length_10_30(),
+                sessionAggrStat.getStep_Length_30_60()};
+        JDBCHelper.getInstance().excuteUpdate(sql,params);
+    }
+}
diff --git a/src/main/java/cn/edu/hust/domain/SessionAggrStat.java b/src/main/java/cn/edu/hust/domain/SessionAggrStat.java
new file mode 100644
index 0000000..b5d4521
--- /dev/null
+++ b/src/main/java/cn/edu/hust/domain/SessionAggrStat.java
@@ -0,0 +1,182 @@
+package cn.edu.hust.domain;
+
+import java.io.Serializable;
+
+public class SessionAggrStat implements Serializable {
+    private Long taskId;
+    private Long SessionCount;
+    private double visit_Length_1s_3s;
+    private double visit_Length_4s_6s;
+    private double visit_Length_7s_9s;
+    private double visit_Length_10s_30s;
+    private double visit_Length_30s_60s;
+    private double visit_Length_1m_3m;
+    private double visit_Length_3m_10m;
+    private double visit_Length_10m_30m;
+    private double visit_Length_30m;
+    private double step_Length_1_3;
+    private double step_Length_4_6;
+    private double step_Length_7_9;
+    private double step_Length_10_30;
+    private double step_Length_30_60;
+    private double step_Length_60;
+
+    public SessionAggrStat() {
+    }
+
+    public void set(Long taskId, Long sessionCount, double visit_Length_1s_3s, double visit_Length_4s_6s, double visit_Length_7s_9s, double visit_Length_10s_30s, double visit_Length_30s_60s, double visit_Length_1m_3m, double visit_Length_3m_10m, double visit_Length_10m_30m, double visit_Length_30m, double step_Length_1_3, double step_Length_4_6, double step_Length_7_9, double step_Length_10_30, double step_Length_30_60, double step_Length_60) {
+        this.taskId = taskId;
+        SessionCount = sessionCount;
+        this.visit_Length_1s_3s = visit_Length_1s_3s;
+        this.visit_Length_4s_6s = visit_Length_4s_6s;
+        this.visit_Length_7s_9s = visit_Length_7s_9s;
+        this.visit_Length_10s_30s = visit_Length_10s_30s;
+        this.visit_Length_30s_60s = visit_Length_30s_60s;
+        this.visit_Length_1m_3m = visit_Length_1m_3m;
+        this.visit_Length_3m_10m = visit_Length_3m_10m;
+        this.visit_Length_10m_30m = visit_Length_10m_30m;
+        this.visit_Length_30m = visit_Length_30m;
+        this.step_Length_1_3 = step_Length_1_3;
+        this.step_Length_4_6 = step_Length_4_6;
+        this.step_Length_7_9 = step_Length_7_9;
+        this.step_Length_10_30 = step_Length_10_30;
+        this.step_Length_30_60 = step_Length_30_60;
+        this.step_Length_60 = step_Length_60;
+    }
+
+    public Long getTaskId() {
+        return taskId;
+    }
+
+    public void setTaskId(Long taskId) {
+        this.taskId = taskId;
+    }
+
+    public Long getSessionCount() {
+        return SessionCount;
+    }
+
+    public void setSessionCount(Long sessionCount) {
+        SessionCount = sessionCount;
+    }
+
+    public double getVisit_Length_1s_3s() {
+        return visit_Length_1s_3s;
+    }
+
+    public void setVisit_Length_1s_3s(double visit_Length_1s_3s) {
+        this.visit_Length_1s_3s = visit_Length_1s_3s;
+    }
+
+    public double getVisit_Length_4s_6s() {
+        return visit_Length_4s_6s;
+    }
+
+    public void setVisit_Length_4s_6s(double visit_Length_4s_6s) {
+        this.visit_Length_4s_6s = visit_Length_4s_6s;
+    }
+
+    public double getVisit_Length_7s_9s() {
+        return visit_Length_7s_9s;
+    }
+
+    public void setVisit_Length_7s_9s(double visit_Length_7s_9s) {
+        this.visit_Length_7s_9s = visit_Length_7s_9s;
+    }
+
+    public double getVisit_Length_10s_30s() {
+        return visit_Length_10s_30s;
+    }
+
+    public void setVisit_Length_10s_30s(double visit_Length_10s_30s) {
+        this.visit_Length_10s_30s = visit_Length_10s_30s;
+    }
+
+    public double getVisit_Length_30s_60s() {
+        return visit_Length_30s_60s;
+    }
+
+    public void setVisit_Length_30s_60s(double visit_Length_30s_60s) {
+        this.visit_Length_30s_60s = visit_Length_30s_60s;
+    }
+
+    public double getVisit_Length_1m_3m() {
+        return visit_Length_1m_3m;
+    }
+
+    public void setVisit_Length_1m_3m(double visit_Length_1m_3m) {
+        this.visit_Length_1m_3m = visit_Length_1m_3m;
+    }
+
+    public double getVisit_Length_3m_10m() {
+        return visit_Length_3m_10m;
+    }
+
+    public void setVisit_Legth_3m_10m(double visit_Legth_3m_10m) {
+        this.visit_Length_3m_10m = visit_Legth_3m_10m;
+    }
+
+    public double getVisit_Length_10m_30m() {
+        return visit_Length_10m_30m;
+    }
+
+    public void setVisit_Length_10m_30m(double visit_Length_10m_30m) {
+        this.visit_Length_10m_30m = visit_Length_10m_30m;
+    }
+
+    public double getVisit_Length_30m() {
+        return visit_Length_30m;
+    }
+
+    public void setVisit_Length_30m(double visit_Length_30m) {
+        this.visit_Length_30m = visit_Length_30m;
+    }
+
+    public double getStep_Length_1_3() {
+        return step_Length_1_3;
+    }
+
+    public void setStep_Length_1_3(double step_Length_1_3) {
+        this.step_Length_1_3 = step_Length_1_3;
+    }
+
+    public double getStep_Length_4_6() {
+        return step_Length_4_6;
+    }
+
+    public void setStep_Length_4_6(double step_Length_4_6) {
+        this.step_Length_4_6 = step_Length_4_6;
+    }
+
+    public double getStep_Length_7_9() {
+        return step_Length_7_9;
+    }
+
+    public void setStep_Length_7_9(double step_Length_7_9) {
+        this.step_Length_7_9 = step_Length_7_9;
+    }
+
+    public double getStep_Length_10_30() {
+        return step_Length_10_30;
+    }
+
+    public void setStep_Length_10_30(double step_Length_10_30) {
+        this.step_Length_10_30 = step_Length_10_30;
+    }
+
+    public double getStep_Length_30_60() {
+        return step_Length_30_60;
+    }
+
+    public void setStep_Length_30_60(double step_Length_30_60) {
+        this.step_Length_30_60 = step_Length_30_60;
+    }
+
+    public double getStep_Length_60() {
+        return step_Length_60;
+    }
+
+    public void setStep_Length_60(double step_Length_60) {
+        this.step_Length_60 = step_Length_60;
+    }
+}
diff --git a/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java b/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java
index e03867b..7ab2493 100644
--- a/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java
+++ b/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java
@@ -89,12 +89,15 @@ public class UserVisitAnalyze {
          *         一场灾难。
          */
 
+        //计算各个session占比,并写入MySQL
+        calculateAndPersist(sessionAggrStatAccumulator.value(),taskId);
         //关闭spark上下文
         context.close();
     }
 
 
 
+
     /**
      * 用于判断是否是生产环境
      * @param sc
@@ -349,4 +352,8 @@ public class UserVisitAnalyze {
         });
         return filteredSessionRDD;
     }
+
+
+    private static void calculateAndPersist(String value,Long taskId) {
+    }
 }
diff --git a/src/test/java/cn/edu/hust/dao/SessionAggrDao.java b/src/test/java/cn/edu/hust/dao/SessionAggrDao.java
new file mode 100644
index 0000000..a0a63c5
--- /dev/null
+++ b/src/test/java/cn/edu/hust/dao/SessionAggrDao.java
@@ -0,0 +1,15 @@
+package cn.edu.hust.dao;
+
+import cn.edu.hust.dao.factory.DaoFactory;
+import cn.edu.hust.domain.SessionAggrStat;
+import org.junit.Test;
+
+public class SessionAggrDao {
+    @Test
+    public void test()
+    {
+        SessionAggrStat sessionAggrStat=new SessionAggrStat();
+        sessionAggrStat.set(1L,100L,1,2,3,4,5,6,7,8,9,0,10,11,12,13,14);
+        DaoFactory.getSessionAggrStatDao().insert(sessionAggrStat);
+    }
+}