Merge remote-tracking branch 'remotes/origin/wlf' into wmj

# Conflicts:
#	GDMS.iml
#	src/servlet/account/login.java

.idea/artifacts/GDMS_war_exploded.xml

@@ -7,6 +7,9 @@
         <element id="directory" name="classes">
           <element id="module-output" name="GDMS" />
         </element>
+        <element id="directory" name="lib">
+          <element id="file-copy" path="C:/Program Files/apache-tomcat-9.0.13/lib/tomcat-jdbc.jar" />
+        </element>
       </element>
     </root>
   </artifact>

src/servlet/S_TeacherSelectStudent.java

@@ -0,0 +1,24 @@
+package servlet;
+
+import core.process.C_TeacherSelectStudent;
+import core.user.User;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+public class S_TeacherSelectStudent extends HttpServlet {
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        super.doPost(request, response);
+        String teacher_id=request.getParameter("id");
+        User user=(User)request.getSession().getAttribute("User");
+        String student_id=user.getId();
+        try {
+            new C_TeacherSelectStudent().select(teacher_id,student_id);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

src/servlet/account/S_Register.java

@@ -1,4 +1,46 @@
 package servlet.account;
 
-public class S_Register {
+import core.user.User;
-}
+import core.user.utils.AccountManagement;
+import error.GExcptAccount;
+import error.GExcptSQL;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
+
+public class S_Register extends HttpServlet {
+    @Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        super.doPost(request, response);
+        Map<String,String> user_info=new HashMap<>();
+        String id=request.getParameter("id");
+        user_info.put("id",id);
+        String name=request.getParameter("name");
+        user_info.put("name",name);
+        String e_mail=request.getParameter("e-mail");
+        user_info.put("e_mail",e_mail);
+        String phone_number=request.getParameter("phone-number");
+        user_info.put("phone_number",phone_number);
+        String password=request.getParameter("password");
+        user_info.put("password",password);
+        User user=null;
+        try {
+            user = AccountManagement.register("student",user_info);
+        } catch (GExcptSQL gExcptSQL) {
+            gExcptSQL.printStackTrace();
+        } catch (GExcptAccount gExcptAccount) {
+            gExcptAccount.printStackTrace();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        //注册失败
+        request.getSession().setAttribute("User",user);
+        request.getRequestDispatcher("/home.jsp").forward(request,response);
+
+    }
+}

src/servlet/account/login.java

@@ -33,8 +33,6 @@ public class login extends HttpServlet {
       }
     request.getSession().setAttribute("User",user);
       request.getRequestDispatcher("/home.jsp").forward(request,response);
-      request.getSession().setAttribute("User",user);
-    request.getRequestDispatcher("/home.jsp").forward(request,response);
   }
 
   protected void doGet(HttpServletRequest request, HttpServletResponse response)

src/servlet/basic_settings/S_Listener.java

@@ -0,0 +1,4 @@
+package servlet.basic_settings;
+
+public class S_Listener {
+}

web/login.jsp

@@ -56,7 +56,7 @@
             <select class="id-check">
                 <option value="">身份</option>
                 <option value="student">学生</option>
-                <option value="teacher">老师</option>
+                <option v   alue="teacher">老师</option>
             </select>
             <input class="register-submit-style" type="submit" value="注册">
         </form>

web/select.jsp

@@ -25,7 +25,7 @@
             <div class="select-blank"></div>
             <div class="selected-bottom"></div>
         </div>
-        <div class="list-frame bar-change">
+        <div class="list-frame bar-hange">c
             <div class="list-child">
                 <div class="name"><span class="the-name">李先生</span></div>
                 <div class="other-msgs">