init: 优化代码

pom.xml

@@ -19,6 +19,13 @@
             <artifactId>spring-boot-starter</artifactId>
         </dependency>
 
+
+        <dependency>
+            <groupId>org.mybatis</groupId>
+            <artifactId>mybatis</artifactId>
+            <version>3.5.10</version>
+        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
@@ -123,8 +130,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
                 <configuration>
-                    <source>1.8</source>
+                    <source>9</source>
-                    <target>1.8</target>
+                    <target>9</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>

src/main/java/com/bao/dating/common/Comments.java

@@ -0,0 +1,19 @@
+package com.bao.dating.common;
+
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+
+/**
+ * 评论表
+ */
+@Data
+public class Comments {
+    private Long comment_id;   // 评论ID
+    private String content;  // 评论内容
+    private Long user_id;     // 评论人ID
+    private Long post_id;  // 关联动态ID
+    private LocalDateTime created_at; // 评论时间
+}

src/main/java/com/bao/dating/common/Post.java

@@ -0,0 +1,16 @@
+package com.bao.dating.common;
+
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+/**
+ * 动态表
+ */
+@Data
+public class Post {
+    private Long post_id;         // 动态ID
+    private String content;  // 动态内容
+    private Long user_id;     // 发布人ID
+    private LocalDateTime created_at; // 创建时间
+}

src/main/java/com/bao/dating/common/ResultCode.java

@@ -8,7 +8,8 @@ public enum ResultCode {
     UNAUTHORIZED(401, "未登录或 Token 失效"),
     FORBIDDEN(403, "无权限"),
     NOT_FOUND(404, "数据不存在"),
-    SYSTEM_ERROR(500, "系统异常");
+    SYSTEM_ERROR(500, "系统异常"),
+    FAIL(500, "操作失败");
 
     private final int code;
     private final String msg;

src/main/java/com/bao/dating/controller/CommentController.java

@@ -0,0 +1,52 @@
+package com.bao.dating.controller;
+
+import com.bao.dating.common.Comments;
+import com.bao.dating.common.Result;
+import com.bao.dating.common.ResultCode;
+import com.bao.dating.service.CommentsService;
+import org.springframework.web.bind.annotation.*;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+@RestController
+@RequestMapping("/comments")
+@CrossOrigin
+public class CommentController {
+    @Resource
+    private CommentsService commentsService;
+
+    /**
+     * 添加评论
+     * @param comment 评论对象（含content、userId、dynamicId）
+     */
+    @PostMapping("/add")
+    public Result<String> addComment(@RequestBody Comments comment) {
+        boolean success = commentsService.addComment(comment);
+        return success ?
+                Result.success(ResultCode.SUCCESS, "评论成功") :
+                Result.error(ResultCode.FAIL, "评论失败");
+    }
+
+    /**
+     * 删除评论
+     * @param user_id 评论ID
+     */
+    @DeleteMapping("/delete/{user_id}")
+    public Result<String> deleteComment(@PathVariable Long user_id) {
+        boolean success = commentsService.deleteComment(user_id);
+        return success ?
+                Result.success(ResultCode.SUCCESS, "删除成功") :
+                Result.error(ResultCode.FAIL, "删除失败");
+    }
+
+    /**
+     * 根据动态ID查询评论列表
+     * @param post_id 动态ID
+     */
+    @GetMapping("/list/{post_id}")
+    public Result<List<Comments>> getCommentList(@PathVariable Long post_id) {
+        List<Comments> commentList = commentsService.getCommentByPostId(post_id);
+        return Result.success(ResultCode.SUCCESS, commentList);
+    }
+}

src/main/java/com/bao/dating/controller/NoticeController.java

@@ -1,39 +0,0 @@
-package com.bao.dating.controller;
-
-import com.bao.dating.pojo.entity.Notice;
-import com.bao.dating.service.NoticeService;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.util.List;
-
-/**
- * 公告控制器
- */
-@RestController
-@RequestMapping("/notice")
-public class NoticeController {
-    @Autowired
-    private NoticeService noticeService;
-
-    /**
-     * 查询所有公告数据
-     * @return 公告列表
-     */
-    @GetMapping("/list")
-    public List<Notice> getNoticeList() {
-        return noticeService.getNoticeList();
-    }
-
-    /**
-     * 判断是否有公告数据
-     * @return true=有数据 false=无数据
-     */
-    @GetMapping("/hasData")
-    public boolean hasNoticeData() {
-        List<Notice> noticeList = noticeService.getNoticeList();
-        return !noticeList.isEmpty();
-    }
-}

src/main/java/com/bao/dating/controller/text.java

@@ -1,4 +0,0 @@
-package com.bao.dating.controller;
-
-public class text {
-}

src/main/java/com/bao/dating/mapper/CommentsMapper.java

@@ -0,0 +1,22 @@
+package com.bao.dating.mapper;
+
+
+import com.bao.dating.common.Comments;
+import com.bao.dating.common.Post;
+import org.apache.ibatis.annotations.*;
+
+import java.util.List;
+
+public interface CommentsMapper {
+    // 添加评论
+    @Insert("INSERT INTO comments(content, user_id, post_id, created_at) VALUES(#{content}, #{user_id}, #{post_id}, #{created_at})")
+    int addComment(Comments comments);
+
+    // 删除评论
+    @Delete("DELETE FROM comments WHERE user_id = #{user_id}")
+    int deleteComments(@Param("user_id") Long user_id);
+
+    // 根据动态ID查询评论列表
+    @Select("SELECT * FROM comments WHERE post_id = #{post_id} ORDER BY created_at DESC")
+    List<Comments> getCommentsByPostId(@Param("post_id") Long post_id);
+}

src/main/java/com/bao/dating/mapper/NoticeMapper.java

@@ -1,16 +0,0 @@
-package com.bao.dating.mapper;
-
-import com.bao.dating.pojo.entity.Notice;
-
-import java.util.List;
-
-/**
- * 公告Mapper接口
- */
-public interface NoticeMapper {
-    /**
-     * 查询所有公告
-     * @return 公告列表
-     */
-    List<Notice> selectNoticeList();
-}

src/main/java/com/bao/dating/pojo/entity/Notice.java

@@ -1,40 +0,0 @@
-package com.bao.dating.pojo.entity;
-
-import com.fasterxml.jackson.annotation.JsonFormat;
-import lombok.Data;
-
-import java.util.Date;
-
-/**
- * 公告实体类
- */
-@Data
-public class Notice {
-    /**
-     * 公告ID
-     */
-    private Long noticeId;
-    /**
-     * 公告标题
-     */
-    private String noticeTitle;
-    /**
-     * 公告内容
-     */
-    private String noticeContent;
-    /**
-     * 状态（0正常 1关闭）
-     */
-    private String noticeStatus;
-    /**
-     * 创建时间
-     */
-    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
-    private Date createTime;
-    /**
-     * 更新时间
-     */
-    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
-    private Date updateTime;
-}
-

src/main/java/com/bao/dating/service/CommentsService.java

@@ -0,0 +1,20 @@
+package com.bao.dating.service;
+
+
+import com.bao.dating.common.Comments;
+
+import java.util.List;
+
+public interface CommentsService{
+    // 添加评论
+    boolean addComment(Comments comments);
+
+    // 删除评论
+    boolean deleteComment(Long user_id);
+
+    // 根据动态ID查询评论
+    List<Comments> getCommentByPostId(Long post_id);
+
+
+
+}

src/main/java/com/bao/dating/service/NoticeService.java

@@ -1,16 +0,0 @@
-package com.bao.dating.service;
-
-import com.bao.dating.pojo.entity.Notice;
-
-import java.util.List;
-
-/**
- * 公告服务接口
- */
-public interface NoticeService {
-    /**
-     * 查询所有公告
-     * @return 公告列表
-     */
-    List<Notice> getNoticeList();
-}

src/main/java/com/bao/dating/service/impl/CommentsServiceImpl.java

@@ -0,0 +1,39 @@
+package com.bao.dating.service.impl;
+
+import com.bao.dating.common.Comments;
+
+import com.bao.dating.mapper.CommentsMapper;
+
+
+import com.bao.dating.service.CommentsService;
+import org.springframework.stereotype.Service;
+
+
+import javax.annotation.Resource;
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Service
+public class CommentsServiceImpl implements CommentsService {
+
+
+
+    @Resource
+    private CommentsMapper commentsMapper;
+
+    @Override
+    public boolean addComment(Comments comments) {
+        // 设置创建时间
+        comments.setCreated_at(LocalDateTime.now());
+        return commentsMapper.addComment(comments) > 0;
+    }
+    @Override
+    public boolean deleteComment(Long user_id) {
+        return commentsMapper.deleteComments(user_id) > 0;
+    }
+
+    @Override
+    public List<Comments> getCommentByPostId(Long post_id) {
+        return commentsMapper.getCommentsByPostId(post_id);
+    }
+}

src/main/java/com/bao/dating/service/impl/NoticeServiceImpl.java

@@ -1,18 +0,0 @@
-package com.bao.dating.service.impl;
-
-import com.bao.dating.mapper.NoticeMapper;
-import com.bao.dating.pojo.entity.Notice;
-import com.bao.dating.service.NoticeService;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-import java.util.List;
-@Service
-public class NoticeServiceImpl implements NoticeService {
-    @Autowired
-    private NoticeMapper noticeMapper;
-    @Override
-    public List<Notice> getNoticeList() {
-        return noticeMapper.selectNoticeList();
-    }
-}

src/main/java/com/bao/dating/service/impl/PostServiceImpl.java

@@ -166,7 +166,7 @@ public class PostServiceImpl implements PostService {
      */
     @Override
     public void deletePostById(Integer postId) {
-        postMapper.deletePostById(postId);
+        postMapper.deletePostById(Long.valueOf(postId));
     }
 
     @Override

src/main/resources/com/bao/dating/mapper/NoticeMapper.xml

@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
-        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
-<mapper namespace="com.bao.dating.mapper.NoticeMapper">
-
-    <!-- 通用查询结果列 -->
-    <sql id="Notice_Column_List">
-        notice_id, notice_title, notice_content, notice_status, create_time, update_time
-    </sql>
-
-    <!-- 查询所有公告 -->
-    <select id="selectNoticeList" resultType="com.bao.dating.pojo.entity.Notice">
-        select
-        <include refid="Notice_Column_List"/>
-        from sys_notice
-        where notice_status = '0'
-        order by create_time desc
-    </select>
-
-</mapper>