vue文件前端

 <el-button type="warning" plain @click="handleDeletion">注 销</el-button>

// 注销
const handleDeletion = (userName) => {
  ElMessageBox.confirm('注销该用户所有信息后无法恢复，您确认注销吗?', '注销确认', { type: 'warning' }).then(() => {
    const userName = data.form.username;
    request.delete('http://localhost:9090/peoples/deletePeople/' + userName).then(res => {
      if (res.code === '200') {
        ElMessage.success("操作成功")
        router.push('/login')
      } else {
        ElMessage.error(res.msg)
      }
    })
  }).catch(res => {
    console.error('Delete request failed');
  })
}

 springboot后台

controller

   /**
     * 注销
     * @param userName
     */
    @DeleteMapping("/deletePeople/{userName}")
    public Result deletePeople(@PathVariable String userName){
        peopleService.deletePeopleByUsername(userName);
        return Result.success();
    }

 其中Result是写的一个公共方法

code是等于200（请求成功）还是500（请求失败）

mapper

   //批量删除
    @Delete("delete from people where id in (#{id})")
    void deleteBatch(List<Integer> id);

service

  /**
     * 根据用户名删除用户
     */
    public void deletePeopleByUsername(String username) {
        peoplesMapper.deleteByUsername(username);
    }