返回老师信息时根据用户id返回是否对某个课程已经进行了评价

server/src/main/java/com/nju171250/njuTeacher/controller/CommentController.java

@@ -117,7 +117,8 @@ public List<Comment> getCommentInfo(String teacherId, String courseId){
         if(courseId == null || courseId.equals("")){
             return commentMapper.getCommentInfoByTeacherId(teacherId);
         }
-        else
+        else {
             return commentMapper.getCommentInfoByCourseId(courseId);
+        }
     }
 }

server/src/main/java/com/nju171250/njuTeacher/controller/TeacherController.java

@@ -1,8 +1,10 @@
 package com.nju171250.njuTeacher.controller;
 
 import com.alibaba.fastjson.JSONObject;
+import com.nju171250.njuTeacher.mapper.CommentMapper;
 import com.nju171250.njuTeacher.mapper.CourseMapper;
 import com.nju171250.njuTeacher.mapper.TeacherMapper;
+import com.nju171250.njuTeacher.model.CommentExample;
 import com.nju171250.njuTeacher.model.Course;
 import com.nju171250.njuTeacher.model.CourseExample;
 import com.nju171250.njuTeacher.model.Teacher;
@@ -18,16 +20,32 @@ public class TeacherController {
     TeacherMapper teacherMapper;
     @Autowired
     CourseMapper courseMapper;
+    @Autowired
+    CommentMapper commentMapper;
 
     @GetMapping(value = "/getTeacherInfo")
-    public JSONObject getTeacherInfo(String teacherId){
+    public JSONObject getTeacherInfo(String teacherId, String openid){
         Teacher teacher = teacherMapper.selectByPrimaryKey(teacherId);
 
         CourseExample example = new CourseExample();
         CourseExample.Criteria criteria = example.createCriteria();
         criteria.andTeacherIdEqualTo(teacherId);
         List<Course> list = courseMapper.selectByExample(example);
 
+        if(openid != null) {
+            for (Course course : list) {// 设置用户是否已对该课程进行评价
+                CommentExample commentExample = new CommentExample();
+                CommentExample.Criteria criteria1 = commentExample.createCriteria();
+                criteria1.andUserIdEqualTo(openid);
+                criteria1.andCourseIdEqualTo(course.getCourseId());
+                if(commentMapper.countByExample(commentExample) == 0){// 若返回0，则说明用户对该课程未评价，否则已评价
+                    course.setCommented(false);
+                }
+                else
+                    course.setCommented(true);
+            }
+        }
+
         JSONObject jsonObject = new JSONObject();
         jsonObject.put("teacher", teacher);
         jsonObject.put("courses", list);

server/src/main/java/com/nju171250/njuTeacher/model/Comment.java

@@ -75,6 +75,7 @@ public Comment(String commentId, String courseId, String userId, String commentC
         this.likeNum = likeNum;
     }
 
+
     /**
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table comment

server/src/main/java/com/nju171250/njuTeacher/model/Course.java

@@ -1,6 +1,8 @@
 package com.nju171250.njuTeacher.model;
 
 public class Course {
+    private boolean isCommented;
+
     /**
      * This field was generated by MyBatis Generator.
      * This field corresponds to the database column course.course_id
@@ -91,6 +93,14 @@ public Course(String courseId, String courseIdSchool, String teacherId, String c
         this.courseTeacher = courseTeacher;
     }
 
+    public boolean isCommented() {
+        return isCommented;
+    }
+
+    public void setCommented(boolean commented) {
+        isCommented = commented;
+    }
+
     /**
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table course