导入学生时判断准考证号重复

suser/src/main/java/com/xhkjedu/suser/mapper/system/UserMapper.java

     //根据登录名查找用户集合
     List<TUser> listByLoginNames(@Param("loginnames") List<String> loginnames);
 
+    //根据准考证号查找用户集合
+    List<TUser> listByExamnos(@Param("examnos") List<String> examnos);
+
     //批量更新用户信息
     void batchUpdateUser(@Param("users") List<TUser> users);
 

suser/src/main/java/com/xhkjedu/suser/service/gradeclass/ClassStudentService.java

             List<TUser> teachersExisted = new ArrayList<>();//已存在教师列表
             List<TUser> studentsExisted = new ArrayList<>();//已存在学生列表
             List<TUser> usersExisted = new ArrayList<>();//已存在非本校账号列表
+            List<TUser> userexamnoExisted = new ArrayList<>();//已存在准考证号
             List<TUser> delUsers = new ArrayList<>();//已删除学生列表
             List<TUser> updateUsers = new ArrayList<>();//要更新学生列表
             List<String> loginnames = students.stream().map(s -> s.getLoginname()).collect(Collectors.toList());
+            List<String> examnos = students.stream().filter(s -> N_Utils.isNotEmpty(s.getExamno())).map(s -> s.getExamno()).collect(Collectors.toList());
             Map<String, TUser> userMap = userMapper.listByLoginNames(loginnames).stream()
                     .collect(Collectors.toMap(u -> u.getLoginname(), u -> u));
+            Map<String,TUser> userexamnoMap = null;
+            if(N_Utils.isListNotEmpty(examnos)){
+                userexamnoMap = userMapper.listByExamnos(examnos).stream().collect(Collectors.toMap(u -> u.getExamno(), u -> u));
+            }
+
             for (TUser user : students) {
                 TUser u = userMap.get(user.getLoginname());
-                if (null == u) {
+                TUser uexamno = null;
+                if(N_Utils.isNotEmpty(user.getExamno()) && userexamnoMap!=null){
+                    uexamno = userexamnoMap.get(user.getExamno());
+                }
+                if (null == u && uexamno == null) {
                     user.setSchoolid(schoolid);
                     user.setCreateid(createid);
                     user.setCreatetime(N_Utils.getSecondTimestamp());
                     user.setBindsecret(0);
                     user.setUserlock(0);
                     users.add(user);
+                } else if(null == u && uexamno != null){
+                    user.setLoginpwd("");
+                    userexamnoExisted.add(user);
+                    continue;
                 } else {
                     if (schoolid != u.getSchoolid()) {
                         usersExisted.add(u);
             map.put("studentsExisted", studentsExisted);
             map.put("usersExisted", usersExisted);
             map.put("delUsers", delUsers);
+            map.put("userexamnoExisted", userexamnoExisted);
             if (N_Utils.isListNotEmpty(teachersExisted) || N_Utils.isListNotEmpty(studentsExisted)
-                    || N_Utils.isListNotEmpty(usersExisted) || N_Utils.isListNotEmpty(delUsers)) {
+                    || N_Utils.isListNotEmpty(usersExisted) || N_Utils.isListNotEmpty(delUsers) || N_Utils.isListNotEmpty(userexamnoExisted)) {
                 map.put("code", 1);
             } else {
                 map.put("code", 0);

suser/src/main/resources/mapper/system/UserMapper.xml

             binary u.loginname=#{loginname}
         </foreach>
     </select>
+    <!--根据准考证号查找用户集合-->
+    <select id="listByExamnos" resultType="com.xhkjedu.suser.model.system.TUser">
+        select u.userid,u.username,u.loginname,u.examno,u.usersex,u.usertype,u.userstate,u.schoolid
+        from t_user u where
+        <foreach collection="examnos" item="examno" separator="or">
+            <if test="examno!=null and examno!=''">
+                binary u.examno=#{examno}
+            </if>
+        </foreach>
+    </select>
     <!--批量更新用户信息-->
     <update id="batchUpdateUser">
         <foreach collection="users" item="u" separator="or">