创建我的空间和发帖功能

建表 -> 实体类 -> Mapper -> Service -> Controller

pojo

package com.kill9.backend.pojo;
 
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
 
import java.util.Date;
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Activity {
    @TableId(type = IdType.AUTO)
    private Integer id;//在pojo里最好用Integer，否则会报警告
    private Integer userId;//pojo里要用驼峰命名法和数据库的下划线对应
    private String photo;
    private String content;
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss" ,timezone = "Asia/Shanghai")
    private Date createtime;
}

 mapper

package com.kill9.backend.mapper;
 
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;
 
@Mapper
public interface ActivityMapper extends BaseMapper<ActivityMapper> {
}

service

package com.kill9.backend.service.impl.user.activity;
 
import com.kill9.backend.mapper.ActivityMapper;
import com.kill9.backend.pojo.Activity;
import com.kill9.backend.pojo.User;
import com.kill9.backend.service.impl.utils.UserDetailsImpl;
import com.kill9.backend.service.user.activity.AddActivityService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Service;
 
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
 
@Service
public class AddActivityServiceImpl implements AddActivityService {
    @Autowired
    private ActivityMapper activityMapper;
    @Override
    public Map<String, String> add(Map<String, String> data) {
        UsernamePasswordAuthenticationToken authenticationToken = (UsernamePasswordAuthenticationToken) SecurityContextHolder.getContext().getAuthentication();
        UserDetailsImpl loginUser = (UserDetailsImpl) authenticationToken.getPrincipal();
        User user = loginUser.getUser();
        Map<String,String> map = new HashMap<>();
        String content = data.get("content");
        if (content == null || content.length() == 0) {
            map.put("error_message", "内容不能为空");
            return map;
        }
        Date date = new Date();
        Activity activity = new Activity(null,user.getId(),user.getPhoto(),content,date);
        activityMapper.insert(activity);
        
        map.put("error_message","success");
        return  map;
    }
}

controller

package com.kill9.backend.controller.user;
 
import com.kill9.backend.service.user.activity.AddActivityService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
 
import java.util.Map;
 
@RestController
public class AddActivityController {
    @Autowired
    private AddActivityService addActivityService;
    @PostMapping("/user/activity/add")
    public Map add(@RequestParam Map data){
        return addActivityService.add(data);
    }
}

实现前端个人页面展示

navbar

<template>
    <nav class="navbar navbar-expand-lg navbar-light bg-light">
        <div class="container">
          <a   class="navbar-brand">MySpacea>
          <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon">span>
          button>
          <div class="collapse navbar-collapse" id="navbarText">
            <ul class="navbar-nav me-auto mb-2 mb-lg-0">
              <li class="nav-item">
                <a  class="nav-link active" aria-current="page">Homea>
              li>
              <li class="nav-item">
                <a  class="nav-link" >Friendsa>
              li>
            ul>
            <ul class="navbar-nav" v-if="!$store.state.user.is_login">
                <li class="nav-item">
                  <a  class="nav-link active" aria-current="page" >Logina>
                li>
                <li class="nav-item">
                  <a  class="nav-link" >Registera>
                li>
              ul>
              <ul class="navbar-nav" v-else>
                <li class="nav-item">
                  <a class="nav-link active" aria-current="page" >
                a>
                li>
                <li class="nav-item">
                  <a class="nav-link" style="cursor: pointer;">Exita>
                li>
              ul>
          div>
        div>
      nav>
template>
 
<script>
 
import {useStore} from 'vuex';
export default{
    name:"NavBar",
    setup() {
      const store = useStore();
      const logout = () =>{
        store.commit('logout');
      };
      return {
        logout,
      }
    }
}
script>
 
<style scoped>
 
style>

userinfoindexview.vue

<template>
    <NavBar/>
template>
<script>
 
 
import NavBar from '@/components/userinfo/NavBar.vue';
 
export default{
    components:{
        NavBar,
    }
}
script>
<style scoped>
style>

 完成后端三个api 增删查 ，不需要修改帖子

1 add

package com.kill9.backend.service.impl.user.activity;
 
import com.kill9.backend.mapper.ActivityMapper;
import com.kill9.backend.pojo.Activity;
import com.kill9.backend.pojo.User;
import com.kill9.backend.service.impl.utils.UserDetailsImpl;
import com.kill9.backend.service.user.activity.AddActivityService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Service;
 
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
 
@Service
public class AddActivityServiceImpl implements AddActivityService {
    @Autowired
    private ActivityMapper activityMapper;
    @Override
    public Map<String, String> add(Map<String, String> data) {
        UsernamePasswordAuthenticationToken authenticationToken = (UsernamePasswordAuthenticationToken) SecurityContextHolder.getContext().getAuthentication();
        UserDetailsImpl loginUser = (UserDetailsImpl) authenticationToken.getPrincipal();
        User user = loginUser.getUser();
        Map<String,String> map = new HashMap<>();
        String content = data.get("content");
        if (content == null || content.length() == 0) {
            map.put("error_message", "内容不能为空");
            return map;
        }
        Date date = new Date();
        Activity activity = new Activity(null,user.getId(),user.getPhoto(),content,date);
        activityMapper.insert(activity);
 
        map.put("error_message","success");
        return  map;
    }
}

2 getlist

package com.kill9.backend.service.impl.user.activity;
 
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.kill9.backend.mapper.ActivityMapper;
import com.kill9.backend.pojo.Activity;
import com.kill9.backend.pojo.User;
import com.kill9.backend.service.impl.utils.UserDetailsImpl;
import com.kill9.backend.service.user.activity.GetActivityListService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Service;
 
import java.util.List;
 
@Service
public class GetActivityListServiceImpl implements GetActivityListService {
    @Autowired
    private ActivityMapper activityMapper;
    @Override
    public List getList() {
        UsernamePasswordAuthenticationToken authenticationToken = (UsernamePasswordAuthenticationToken) SecurityContextHolder.getContext().getAuthentication();
        UserDetailsImpl loginUser =(UserDetailsImpl) authenticationToken.getPrincipal();
        User user = loginUser.getUser();
        QueryWrapper queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("user_id",user.getId());
        return activityMapper.selectList(queryWrapper);
    }
}

3 delete

package com.kill9.backend.service.impl.user.activity;
 
import com.kill9.backend.mapper.ActivityMapper;
import com.kill9.backend.pojo.Activity;
import com.kill9.backend.pojo.Bot;
import com.kill9.backend.pojo.User;
import com.kill9.backend.service.impl.utils.UserDetailsImpl;
import com.kill9.backend.service.user.activity.RemoveActivityService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Service;
 
import java.util.HashMap;
import java.util.Map;
 
@Service
public class RemoveActivityServiceImpl implements RemoveActivityService {
    @Autowired
    private ActivityMapper activityMapper;
 
    @Override
    public Map<String, String> remove(Map<String, String> data) {
        UsernamePasswordAuthenticationToken authenticationToken = (UsernamePasswordAuthenticationToken) SecurityContextHolder.getContext().getAuthentication();
        UserDetailsImpl loginUser = (UserDetailsImpl) authenticationToken.getPrincipal();
        User user = loginUser.getUser();
        int activity_id = Integer.parseInt(data.get("activity_id"));
        Map<String,String> map = new HashMap<>();
        Activity activity = activityMapper.selectById(activity_id);
        if (activity == null) {
            map.put("error_message", "帖子不存在或已被删除");
            return map;
        }
        if (!activity.getUserId().equals(user.getId())) {
            map.put("error_message", "没有权限删除该帖子");
            return map;
        }
        activityMapper.deleteById(activity_id);
        map.put("error_message", "success");
        return map;
    }
}

实现前端