查询评论接口完善

backend/src/main/java/com/nav/controller/PostController.java

@@ -3,6 +3,7 @@ package com.nav.controller;
 import com.nav.common.api.CommonResult;
 import com.nav.pojo.Comment;
 import com.nav.service.PostService;
+import com.nav.vo.result.CommentResult;
 import com.nav.vo.result.LifePostResult;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.CrossOrigin;
@@ -10,7 +11,9 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * 类说明
@@ -50,8 +53,12 @@ public class PostController {
     }
 
     @GetMapping("comment/{id}")
-    public List<Comment> getCommentByPostId(@PathVariable long id) {
-        return postService.getCommentByPostId(id);
+    public Map<Integer,CommonResult> getCommentByPostId(@PathVariable long id) {
+        Map<Integer,CommonResult> map=new HashMap<>();
+        CommonResult commonResult=postService.getCommentByPostId(id);
+        List<CommentResult> commentResult = (List<CommentResult>) commonResult.getData();
+        map.put(commentResult.size(),commonResult);
+        return map;
     }
 
 }

backend/src/main/java/com/nav/service/PostService.java

@@ -67,5 +67,5 @@ public interface PostService {
      * @param id:文章id
      * @return:java.util.List<com.nav.pojo.Comment>
     **/
-    public List<Comment> getCommentByPostId(long id);
+    public CommonResult getCommentByPostId(long id);
 }

backend/src/main/java/com/nav/service/PostServiceImpl.java

@@ -49,7 +49,7 @@ public class PostServiceImpl implements PostService{
     }
 
     @Override
-    public List<Comment> getCommentByPostId(long id) {
-        return commentDao.selectCommentByPostId(id);
+    public CommonResult getCommentByPostId(long id) {
+        return CommonResult.success(commentDao.selectCommentByPostId(id),"请求成功");
     }
 }

backend/src/main/java/com/nav/vo/result/CommentResult.java

+package com.nav.vo.result;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.Date;
+
+/**
+ * 类说明
+ * 根据文章id返回的评论内容以及评论者数据集
+ * @author zyx
+ * @date 2022/4/29 20:33
+ */
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class CommentResult {
+    private long id;
+    private long fromUserId;
+    private long toPostId;
+    private long parentId;
+    private String commentContent;
+    private String nickname;
+    private String profilePicture;
+    private Date gmtCreate;
+}
+

backend/src/main/resources/mapper/CommentMapper.xml

@@ -3,10 +3,12 @@
         PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
         "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.nav.dao.CommentDao">
-    <select id="selectCommentByPostId" parameterType="long" resultType="com.nav.pojo.Comment">
-        select *
-        from comment
-        where to_post_id = #{id};
+    <select id="selectCommentByPostId" parameterType="long" resultType="com.nav.vo.result.CommentResult">
+        select u.nickname,u.profile_picture,c.gmt_create,c.id,c.from_user_id,c.to_post_id,c.parent_id,c.comment_content
+        from comment c
+        left join user u
+        on c.from_user_id = u.id
+        where c.to_post_id = #{id};
     </select>
 
 </mapper>
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