系统管理实现

修改密码实现

前端 modifyPassword.vue：

<template>
  <el-card>
    <el-form
        ref="formRef"
        :model="form"
        :rules="rules"
        label-width="150px"
    >
      <el-form-item label="用户名：" prop="userName">
        <el-input v-model="form.userName" disabled/>
      </el-form-item>
      <el-form-item label="原密码：" prop="oldPassword">
        <el-input v-model="form.oldPassword" type="password"/>
      </el-form-item>
      <el-form-item label="新密码：" prop="newPassword">
        <el-input v-model="form.newPassword" type="password"/>
      </el-form-item>
      <el-form-item label="确认新密码：" prop="newPassword2">
        <el-input v-model="form.newPassword2" type="password"/>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="onSubmit">确认修改</el-button
        >
      </el-form-item>
    </el-form>
  </el-card>
</template>

<script setup>
import { ref } from 'vue'
import axios from "@/util/axios";
import { ElMessage } from "element-plus";

const form=ref({
  userName:"",
  password:"",
  oldPassword:"",
  newPassword:"",
  newPassword2:""
})

const rules=ref({

  userName: [
    {
      required: true,
      message: '请输入用户名'
    }
  ],
  oldPassword: [
    {
      required: true,
      message: '请输入密码'
    }
  ],
  newPassword: [
    {
      required: true,
      message: '请输入新密码'
    }
  ],
  newPassword2: [
    {
      required: true,
      message: '请输入确认新密码'
    }
  ],

})

const formRef=ref(null);

const initFormData=()=>{
  let userInfoJson=window.sessionStorage.getItem("userInfo");
  form.value=JSON.parse(userInfoJson);
}

initFormData()

const onSubmit=()=>{
  formRef.value.validate(async(valid)=>{
    if(valid){
      console.log("success")
      if(form.value.oldPassword!==form.value.password){
        ElMessage.error("原密码错误！");
      }else if(form.value.newPassword!==form.value.newPassword2){
        ElMessage.error("确认新密码错误！");
      }else{
        try{
          let result=await axios.post("admin/modifyPassword",form.value)
          let data=result.data;
          if(data.code==0){
            ElMessage.success("密码修改成功，重新登录后生效！");
            formRef.value.resetFields();
          }else{
            ElMessage.error(data.msg);
          }
        }catch(err){
          console.log(err)
          ElMessage.error("系统运行出错，请联系管理员！");
        }
      }
    }else{
      console.log("fail")
      return false
    }
  })
}

</script>

<style lang="scss" scoped>

.el-input{
  width: 300px;
}
</style>

后端：AdminController

    /**
     * 修改密码
     * @param admin
     * @return
     */
    @PostMapping("/admin/modifyPassword")
    public R modifyPassword(@RequestBody Admin admin){
        if(StringUtil.isEmpty(admin.getUserName())){
            return R.error("用户名不能为空！");
        }
        if(StringUtil.isEmpty(admin.getNewPassword())){
            return R.error("新密码不能为空！");
        }
        adminService.update(new UpdateWrapper<Admin>().set("password",admin.getNewPassword()).eq("userName",admin.getUserName()));
        return R.ok();
    }

router.js

import { createRouter, createWebHashHistory } from 'vue-router'


const routes = [
  {
    path: '/',
    name: '首页',
    component: () => import('../views/layout'),
    redirect:'/home',
    children:[
      {
        path: '/home',
        name: '首页',
        component: () => import('../views/home/index')
      },
      {
        path: '/bigType',
        name: '商品大类',
        component: () => import('../views/bigType/index')
      },
      {
        path: '/user',
        name: '用户管理',
        component: () => import('../views/user/index')
      },
      {
        path: '/modifyPassword',
        name: '修改密码',
        component: () => import('../views/modifyPassword/index')
      }
    ]
  },
  {
    path: '/login',
    name: 'login',

    component: () => import('../views/login')
  }
]

const router = createRouter({
  history: createWebHashHistory(),
  routes
})

export default router

报错

Uncaught (in promise) TypeError: Cannot read property 'userName' of null
    at eval (index.vue?0772:1)
    at renderFnWithContext (runtime-core.esm-bundler.js?d2dd:816)
    at renderSlot (runtime-core.esm-bundler.js?d2dd:2968)
    at Proxy.eval (form-item.vue?d3c6:428)
    at renderComponentRoot (runtime-core.esm-bundler.js?d2dd:875)
    at ReactiveEffect.componentUpdateFn [as fn] (runtime-core.esm-bundler.js?d2dd:6002)
    at ReactiveEffect.run (reactivity.esm-bundler.js?89dc:177)
    at instance.update (runtime-core.esm-bundler.js?d2dd:6133)
    at setupRenderEffect (runtime-core.esm-bundler.js?d2dd:6143)
    at mountComponent (runtime-core.esm-bundler.js?d2dd:5911)

views/login/index.vue

          window.sessionStorage.setItem("userInfo",JSON.stringify(form.value))

成功