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code/link56/link56-backend/src/main/java/cn/link56/common/mybatis/StringListTypeHandler.java

@@ -0,0 +1,54 @@
+package cn.link56.common.mybatis;
+
+import org.apache.ibatis.type.BaseTypeHandler;
+import org.apache.ibatis.type.JdbcType;
+import org.apache.ibatis.type.MappedJdbcTypes;
+import org.apache.ibatis.type.MappedTypes;
+
+import java.sql.CallableStatement;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+@MappedTypes(List.class)
+@MappedJdbcTypes(JdbcType.VARCHAR)
+public class StringListTypeHandler extends BaseTypeHandler<List<String>> {
+
+    @Override
+    public void setNonNullParameter(
+            PreparedStatement ps,
+            int i,
+            List<String> parameter,
+            JdbcType jdbcType
+    ) throws SQLException {
+        ps.setString(i, String.join(",", parameter));
+    }
+
+    @Override
+    public List<String> getNullableResult(ResultSet rs, String columnName)
+            throws SQLException {
+        return parse(rs.getString(columnName));
+    }
+
+    @Override
+    public List<String> getNullableResult(ResultSet rs, int columnIndex)
+            throws SQLException {
+        return parse(rs.getString(columnIndex));
+    }
+
+    @Override
+    public List<String> getNullableResult(CallableStatement cs, int columnIndex)
+            throws SQLException {
+        return parse(cs.getString(columnIndex));
+    }
+
+    private List<String> parse(String value) {
+        if (value == null || value.isEmpty()) {
+            return Collections.emptyList();
+        }
+        return Arrays.asList(value.split(","));
+    }
+}

code/link56/link56-backend/src/main/java/cn/link56/post/controller/PostController.java

@@ -1,16 +1,17 @@
 package cn.link56.post.controller;
 
+import cn.link56.common.BasePageVO;
 import cn.link56.common.Result;
-import cn.link56.post.model.dto.PostAddDTO;
-import cn.link56.post.model.vo.PostEditVO;
-import cn.link56.post.model.vo.PostTagVO;
+import cn.link56.post.model.dto.AddPostDTO;
+import cn.link56.post.model.dto.QueryPostDTO;
+import cn.link56.post.model.dto.UpdatePostDTO;
+import cn.link56.post.model.vo.EditPostVO;
+import cn.link56.post.model.vo.QueryPostVO;
 import cn.link56.post.service.PostService;
-import cn.link56.post.service.PostTagService;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
-import java.util.List;
 
 @RestController
 @RequestMapping("/post")
@@ -20,8 +21,20 @@ public class PostController {
     private PostService postService;
 
     @PostMapping("/add")
-    public Result<PostEditVO> addPost(@RequestBody @Validated PostAddDTO postAddDTO) {
-        PostEditVO postEditVO = postService.addPost(postAddDTO);
-        return Result.success(postEditVO);
+    public Result<EditPostVO> addPost(@RequestBody @Validated AddPostDTO addPostDTO) {
+        EditPostVO editPostVO = postService.addPost(addPostDTO);
+        return Result.success(editPostVO);
+    }
+
+    @PostMapping("/update")
+    public Result<EditPostVO> updatePost(@RequestBody @Validated UpdatePostDTO updatePostDTO){
+        EditPostVO editPostVO = postService.updatePost(updatePostDTO);
+        return Result.success(editPostVO);
+    }
+
+    @PostMapping("/query")
+    public Result<BasePageVO<QueryPostVO>> queryPost(@RequestBody QueryPostDTO queryPostDTO){
+        BasePageVO<QueryPostVO> data = postService.queryPost(queryPostDTO);
+        return Result.success(data);
     }
 }

code/link56/link56-backend/src/main/java/cn/link56/post/mapper/PostMapper.java

@@ -1,9 +1,31 @@
 package cn.link56.post.mapper;
 
 import cn.link56.post.model.po.PostPO;
+import cn.link56.post.model.vo.QueryPostVO;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
 
 @Mapper
 public interface PostMapper extends BaseMapper<PostPO> {
+
+    List<QueryPostVO> queryPostPage(
+            @Param("offset") int offset,
+            @Param("limit") int limit,
+            @Param("userId") Long userId,
+            @Param("title") String title,
+            @Param("status") Integer status,
+            @Param("year") String year,
+            @Param("month") String month
+    );
+
+    Long queryPostTotal(
+            @Param("userId") Long userId,
+            @Param("title") String title,
+            @Param("status") Integer status,
+            @Param("year") String year,
+            @Param("month") String month
+    );
 }

code/link56/link56-backend/src/main/java/cn/link56/post/model/dto/AddPostDTO.java

@@ -10,7 +10,7 @@ import java.util.List;
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
-public class PostAddDTO {
+public class AddPostDTO {
     @NotBlank(message = "帖子标题不能为空")
     private String title;
     @NotBlank(message = "帖子内容不能为空")

code/link56/link56-backend/src/main/java/cn/link56/post/model/dto/QueryPostDTO.java

@@ -0,0 +1,19 @@
+package cn.link56.post.model.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class QueryPostDTO {
+    private Integer currentPage;
+    private Integer pageSize;
+
+    private Integer status;
+    private String title;
+
+    private String year;
+    private String month;
+}

code/link56/link56-backend/src/main/java/cn/link56/post/model/dto/UpdatePostDTO.java

@@ -0,0 +1,27 @@
+package cn.link56.post.model.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import java.util.List;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class UpdatePostDTO {
+    @NotNull(message = "消息id不能为空")
+    private Long id;
+    @NotBlank(message = "帖子标题不能为空")
+    private String title;
+    @NotBlank(message = "帖子内容不能为空")
+    private String content;
+    @NotBlank(message = "帖子摘要不能为空")
+    private String summary;
+    private String cover;
+    private List<String> tags;
+
+    private Integer status;
+}

code/link56/link56-backend/src/main/java/cn/link56/post/model/enums/PostStatusEnum.java

@@ -0,0 +1,16 @@
+package cn.link56.post.model.enums;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public enum PostStatusEnum {
+    DRAFT(0, "草稿"),
+    PUBLISHED(1, "已发布"),
+    OFFLINE(2, "已下架");
+
+    private final int code;
+    private final String desc;
+}

code/link56/link56-backend/src/main/java/cn/link56/post/model/po/PostPO.java

@@ -39,7 +39,7 @@ public class PostPO {
     private String cover;
 
     @TableField("b_publish_time")
-    private String publishTime;
+    private Date publishTime;
 
     @TableField("b_status")
     private Integer status;

code/link56/link56-backend/src/main/java/cn/link56/post/model/vo/EditPostVO.java

@@ -1,6 +1,5 @@
 package cn.link56.post.model.vo;
 
-import com.fasterxml.jackson.annotation.JsonFormat;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
@@ -11,7 +10,7 @@ import java.util.List;
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
-public class PostEditVO {
+public class EditPostVO {
     private Long id;
     private String title;
     private String content;

code/link56/link56-backend/src/main/java/cn/link56/post/model/vo/QueryPostVO.java

@@ -0,0 +1,28 @@
+package cn.link56.post.model.vo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.Date;
+import java.util.List;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class QueryPostVO {
+    private Long id;
+
+    private String title;
+    private String cover;
+    private List<String> tags;
+
+    private Date updateTime;
+    private Date publishTime;
+    private Integer status;
+
+    private Integer viewCount;
+    private Integer likeCount;
+    private Integer favoriteCount;
+    private Integer commentCount;
+}

code/link56/link56-backend/src/main/java/cn/link56/post/service/PostService.java

@@ -1,17 +1,31 @@
 package cn.link56.post.service;
 
+import cn.link56.common.BasePageVO;
 import cn.link56.common.context.UserContext;
+import cn.link56.common.utils.snowflake.idgen.IdGenerator;
+import cn.link56.company.model.po.CompanyUserPO;
 import cn.link56.post.mapper.PostMapper;
-import cn.link56.post.model.dto.PostAddDTO;
+import cn.link56.post.model.dto.AddPostDTO;
+import cn.link56.post.model.dto.QueryPostDTO;
+import cn.link56.post.model.dto.UpdatePostDTO;
+import cn.link56.post.model.enums.PostStatusEnum;
 import cn.link56.post.model.po.PostPO;
-import cn.link56.post.model.vo.PostEditVO;
+import cn.link56.post.model.vo.EditPostVO;
+import cn.link56.post.model.vo.QueryPostVO;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.apache.commons.lang3.ObjectUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.List;
+import java.util.stream.Collectors;
 
 @Service
 public class PostService extends ServiceImpl<PostMapper, PostPO> {
@@ -19,21 +33,68 @@ public class PostService extends ServiceImpl<PostMapper, PostPO> {
     private PostMapper postMapper;
 
     @Transactional
-    public PostEditVO addPost(PostAddDTO postAddDTO) {
+    public EditPostVO addPost(AddPostDTO addPostDTO) {
         PostPO postPO = new PostPO();
 
-        BeanUtils.copyProperties(postAddDTO, postPO);
+        BeanUtils.copyProperties(addPostDTO, postPO);
 
-        postPO.setTag(StringUtils.join(postAddDTO.getTags(), ","));
+        postPO.setTag(StringUtils.join(addPostDTO.getTags(), ","));
         postPO.setCompanyId(UserContext.getCompanyId());
 
+        if(addPostDTO.getStatus() == PostStatusEnum.PUBLISHED.getCode()){
+            postPO.setPublishTime(new Date());
+        }
+
+        postPO.setId(IdGenerator.nextId());
         postMapper.insert(postPO);
 
-        PostEditVO postEditVO = new PostEditVO();
+        EditPostVO editPostVO = new EditPostVO();
 
-        BeanUtils.copyProperties(postPO, postEditVO);
-        postEditVO.setTags(postAddDTO.getTags());
+        BeanUtils.copyProperties(postPO, editPostVO);
+        editPostVO.setTags(addPostDTO.getTags());
 
-        return postEditVO;
+        return editPostVO;
+    }
+
+    public BasePageVO<QueryPostVO> queryPost(QueryPostDTO queryPostDTO) {
+        Integer currentPage = queryPostDTO.getCurrentPage();
+        Integer pageSize = queryPostDTO.getPageSize();
+
+        String title = queryPostDTO.getTitle();
+        Integer status = queryPostDTO.getStatus();
+        String year = queryPostDTO.getYear();
+        String month = queryPostDTO.getMonth();
+
+        int offset = (currentPage - 1) * pageSize + 1;
+        int limit = currentPage * pageSize;
+
+        List<QueryPostVO> queryPostVOS = postMapper.queryPostPage(offset, limit, UserContext.getUserId(), title, status, year, month);
+        Long total = postMapper.queryPostTotal(UserContext.getUserId(), title, status, year, month);
+
+        BasePageVO<QueryPostVO> result = new BasePageVO<>();
+        result.setRecords(queryPostVOS);
+        result.setTotal(total);
+
+        return result;
+    }
+
+    public EditPostVO updatePost(UpdatePostDTO updatePostDTO) {
+        Long id = updatePostDTO.getId();
+
+        PostPO postPO = postMapper.selectById(id);
+
+        System.out.println(postPO);
+
+        BeanUtils.copyProperties(updatePostDTO,postPO);
+        postPO.setTag(StringUtils.join(updatePostDTO.getTags(), ","));
+
+        postMapper.updateById(postPO);
+
+        EditPostVO editPostVO = new EditPostVO();
+
+        BeanUtils.copyProperties(postPO, editPostVO);
+        editPostVO.setTags(updatePostDTO.getTags());
+
+        return editPostVO;
     }
 }

code/link56/link56-backend/src/main/resources/cn/link56/post/mapper/PostMapper.xml

@@ -0,0 +1,98 @@
+<?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="cn.link56.post.mapper.PostMapper">
+
+    <resultMap id="QueryPostVOMap"
+               type="cn.link56.post.model.vo.QueryPostVO">
+        <id property="id" column="id"/>
+        <result property="title" column="title"/>
+        <result property="cover" column="cover"/>
+
+        <!-- tags 字符串 → List<String> -->
+        <result
+                property="tags"
+                column="tagsString"
+                typeHandler="cn.link56.common.mybatis.StringListTypeHandler"/>
+
+        <result property="publishTime" column="publishTime"/>
+        <result property="updateTime" column="updateTime"/>
+        <result property="status" column="status"/>
+
+        <result property="viewCount" column="viewCount"/>
+        <result property="likeCount" column="likeCount"/>
+        <result property="favoriteCount" column="favoriteCount"/>
+        <result property="commentCount" column="commentCount"/>
+    </resultMap>
+
+    <select id="queryPostPage" resultMap="QueryPostVOMap">
+        SELECT *
+        FROM (
+        SELECT
+        p.b_id AS id,
+        p.b_title AS title,
+        p.b_cover AS cover,
+        p.b_tag AS tagsString,
+        p.b_update_time AS updateTime,
+        p.b_publish_time AS publishTime,
+        p.b_status AS status,
+
+        (SELECT COUNT(*) FROM b_post_view v WHERE v.b_post_id = p.b_id) AS viewCount,
+        (SELECT COUNT(*) FROM b_post_like l WHERE l.b_post_id = p.b_id) AS likeCount,
+        (SELECT COUNT(*) FROM b_post_favorite f WHERE f.b_post_id = p.b_id) AS favoriteCount,
+        (SELECT COUNT(*) FROM b_post_comment c WHERE c.b_post_id = p.b_id) AS commentCount,
+
+        ROW_NUMBER() OVER (ORDER BY p.b_update_time DESC) AS rn
+        FROM b_post p
+        <where>
+            <if test="userId != null">
+                AND p.b_create_by = #{userId}
+            </if>
+
+            <if test="status != null and status != -1">
+                AND p.b_status = #{status}
+            </if>
+
+            <if test="title != null and title != ''">
+                AND p.b_title LIKE '%' + #{title} + '%'
+            </if>
+
+            <if test="year != null and year != ''">
+                AND YEAR(p.b_update_time) = #{year}
+            </if>
+
+            <if test="month != null and month != ''">
+                AND MONTH(p.b_update_time) = #{month}
+            </if>
+        </where>
+        ) t
+        WHERE t.rn BETWEEN #{offset} AND #{limit}
+    </select>
+
+    <select id="queryPostTotal" resultType="java.lang.Long">
+        SELECT COUNT(*)
+        FROM b_post p
+        <where>
+            <if test="userId != null">
+                AND p.b_create_by = #{userId}
+            </if>
+
+            <if test="status != null and status != -1">
+                AND p.b_status = #{status}
+            </if>
+
+            <if test="title != null and title != ''">
+                AND p.b_title LIKE '%' + #{title} + '%'
+            </if>
+
+            <if test="year != null and year != ''">
+                AND YEAR(p.b_update_time) = #{year}
+            </if>
+
+            <if test="month != null and month != ''">
+                AND MONTH(p.b_update_time) = #{month}
+            </if>
+        </where>
+    </select>
+</mapper>