VUE+Element实现增删改查的示例源码

时间：2021-11-18 03:13:30

前言

&最近因为一些原因，没有更博客，昨天老师布置了一个作业，用vue实现增删改查功能，想想这也不难，就做一下试试吧。
因为自己写的样式没有别人做的好，因此我想用现成的UI框架，一直也没用过Element，就干脆趁机学一下吧。

实验步骤

首先引入一下element的css以及js

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<!-- 引入样式 -->
<link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css" rel="external nofollow" rel="external nofollow" >
<!-- 引入组件库 -->
<script src="https://unpkg.com/element-ui/lib/index.js"></script>

然后引入需要用到的vue相关的js文件

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<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>

下面说一下HTML结构

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<div id="app">
  <h1>职位的增删改查</h1>
  <div class="head">
    <el-row :gutter="20">
      <el-col :span="6">
        <el-input v-model="userInfo.name" placeholder="请输入你的公司名"></el-input>
      </el-col>
      <el-col :span="6">
        <el-input v-model="userInfo.position" placeholder="请输入你的职位"></el-input>
      </el-col>
      <el-col :span="6">
        <el-input v-model="userInfo.major" placeholder="请输入你的专业"></el-input>
      </el-col>
      <el-col :span="6">
        <el-input v-model="userInfo.number" placeholder="请输入数量"></el-input>
      </el-col>
    </el-row>
    <el-button type="primary" @click="addUser" class="add-btn" plain>添加信息</el-button>
  </div>
  <!-- 主体内容 -->
  <div class="body">
    <template>
      <el-table :data="tableData" style="width: 100%">
        <el-table-column label="序号" width="180"><template slot-scope="scope"> {{scope.$index + 1 }} </template></el-table-column>
        <el-table-column prop="name" label="公司名" width="180"></el-table-column>
        <el-table-column prop="position" label="职位"></el-table-column>
        <el-table-column prop="major" label="专业"></el-table-column>
        <el-table-column prop="number" label="数量"></el-table-column>
        <el-table-column prop="birthday" label="操作">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" @click="editUser(scope.row,scope.$index)" circle></el-button>
            <el-button type="danger" icon="el-icon-delete" @click="delUser(scope.$index)" circle></el-button>
          </template>
        </el-table-column>
      </el-table>
    </template>
  </div>
  <!-- 编辑框 -->
  <el-dialog title="编辑用户信息" :visible.sync="dialogVisible" width="30%" :before-close="handleClose">
    <div>
      <el-form ref="form" :model="editObj" label-width="80px">
        <el-form-item label="公司名"><el-input v-model="editObj.name"></el-input></el-form-item>
        <el-form-item label="职位"><el-input v-model="editObj.position"></el-input></el-form-item>
        <el-form-item label="专业"><el-input v-model="editObj.major"></el-input></el-form-item>
        <el-form-item label="数量"><el-input v-model="editObj.number"></el-input></el-form-item>
      </el-form>
    </div>
    <span slot="footer" class="dialog-footer">
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="confirm">确 定</el-button>
    </span>
  </el-dialog>
</div>

这一段是element的表单以及编辑等样式 ，其中添加了一些click操作 后面需要用到

加上基础的样式

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<style>
   #app{
     width:1024px;
     margin: 0 auto;
   }
   .add-btn{
     margin-top: 20px;
     width: 100%;
   }
   .body{
     margin-top:20px;
   }
 </style>

现在页面的基本样式就做好了，如下图所示：

VUE+Element实现增删改查的示例源码

下面开始写vue代码，对各个功能进行处理操作
了解过vuejs的应该知道这样的结构 data里面填写我们获取的数据 一些规则，定义一些变量 ，在methods进行我们的操作。

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new Vue({
  el: '#app',
    data:{},
    methods:{}
})
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data: function(){
        return{
          userInfo:{
            name:'',
            position: '',
            major: '',
            number: '',
          },
          tableData: [{
            name:'互联网+学院',
            position: '专职教师',
            major: '对外贸易',
            number: '2',
          },{
            name:'徐州重工',
            position: '工厂车研发部工程师',
            major: '精密机械制造',
            number: '12',
          },{
            name:'北京青码科技',
            position: '前端开发工程师',
            major: 'Vue、React',
            number: '4',
          }
          ],
          dialogVisible: false,
          editObj:{
            name:'',
            position: '',
            major: '',
            number: '',
          },
          userIndex:0,
        }
      },

接下来我们添加methods

  •     addUser() 是添加数据
  •     delUser()是删除数据
  •     editUser()是编辑数据
  •     handleClose()是是否弹出编辑框
  •     confirm()是确认信息并且传数据到表格中

在增加模块中，我做了信息判断，如果是信息是空就会弹出提示框，显示信息不能为空，
在删除模块中，点击可以删除一行信息
在修改模块中，会先将原本的信息拿到，然后再修改你需要修改的信息。

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methods:{
      //添加
       addUser(){
         if(!this.userInfo.name){
           this.$message({
             message: '请输入你的公司名！',
             
           });
           return;
         }
         if(!this.userInfo.position){
           this.$message({
             message: '请输入你的职位！',
             type: 'warning'
           });
           return;
         }
         if (!this.userInfo.major) {
           this.$message({
             message: '请输入你的专业！',
             type: 'warning'
           });
           return;
         }
         if (!this.userInfo.number) {
           this.$message({
             message: '请输入数量！',
             type: 'warning'
           });
           return;
         }
         this.tableData.push(this.userInfo);
         this.userInfo = {
           name:'',
           position: '',
           major: '',
           number: '',
         };
       },
 
       //删除
       delUser(idx){
         this.$confirm('确认删除此用户信息？')
           .then(_ => {
             this.tableData.splice(idx, 1);
           })
           .catch(_ => {});
       },
       //编辑
       editUser(item,idx){
         this.userIndex = idx;
         this.editObj = {
           name: item.name,
           position: item.position,
           major: item.major,
           number: item.number,
         };
         this.dialogVisible = true;
       },
 
       handleClose(){
         this.dialogVisible = false;
       },
 
       confirm(){
         this.dialogVisible = false;
         Vue.set(this.tableData, this.userIndex, this.editObj);
           }
         },
       })

总结：

    通过这次练习，让我知道了Element框架是怎么使用的，Element框架写代码做样式的确方便，以后有什么要求低的作业可以拿来使用，目前的我毕竟还是一个学生，我还是需要多锻炼写代码，手写样式的能力。

    最后: 附整个项目的源代码，本项目仅供学习交流。

源代码

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css" rel="external nofollow" rel="external nofollow" >
  <title>Vue增删改查</title>
  <style>
    #app{
      width:1024px;
      margin: 0 auto;
    }
    .add-btn{
      margin-top: 20px;
      width: 100%;
    }
    .body{
      margin-top:20px;
    }
  </style>
  
</head>
<body>
  <div id="app">
    <h1>职位的增删改查</h1>
    <div class="head">
      <el-row :gutter="20">
        <el-col :span="6">
          <el-input v-model="userInfo.name" placeholder="请输入你的公司名"></el-input>
        </el-col>
        <el-col :span="6">
          <el-input v-model="userInfo.position" placeholder="请输入你的职位"></el-input>
        </el-col>
        <el-col :span="6">
          <el-input v-model="userInfo.major" placeholder="请输入你的专业"></el-input>
        </el-col>
        <el-col :span="6">
          <el-input v-model="userInfo.number" placeholder="请输入数量"></el-input>
        </el-col>
      </el-row>
      <el-button type="primary" @click="addUser" class="add-btn" plain>添加信息</el-button>
    </div>
    <!-- 主体内容 -->
    <div class="body">
      <template>
        <el-table :data="tableData" style="width: 100%">
          <el-table-column label="序号" width="180"><template slot-scope="scope"> {{scope.$index + 1 }} </template></el-table-column>
          <el-table-column prop="name" label="公司名" width="180"></el-table-column>
          <el-table-column prop="position" label="职位"></el-table-column>
          <el-table-column prop="major" label="专业"></el-table-column>
          <el-table-column prop="number" label="数量"></el-table-column>
          <el-table-column prop="birthday" label="操作">
            <template slot-scope="scope">
              <el-button type="primary" icon="el-icon-edit" @click="editUser(scope.row,scope.$index)" circle></el-button>
              <el-button type="danger" icon="el-icon-delete" @click="delUser(scope.$index)" circle></el-button>
            </template>
          </el-table-column>
        </el-table>
      </template>
    </div>
    <!-- 编辑框 -->
    <el-dialog title="编辑用户信息" :visible.sync="dialogVisible" width="30%" :before-close="handleClose">
      <div>
        <el-form ref="form" :model="editObj" label-width="80px">
          <el-form-item label="公司名"><el-input v-model="editObj.name"></el-input></el-form-item>
          <el-form-item label="职位"><el-input v-model="editObj.position"></el-input></el-form-item>
          <el-form-item label="专业"><el-input v-model="editObj.major"></el-input></el-form-item>
          <el-form-item label="数量"><el-input v-model="editObj.number"></el-input></el-form-item>
        </el-form>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="confirm">确 定</el-button>
      </span>
    </el-dialog>
  </div>
  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  <script src="https://unpkg.com/element-ui/lib/index.js"></script>
 
  <script>
    
    new Vue({
      el:'#app',
      data: function(){
        return{
          userInfo:{
            name:'',
            position: '',
            major: '',
            number: '',
          },
          tableData: [{
            name:'互联网+学院',
            position: '专职教师',
            major: '对外贸易',
            number: '2',
          },{
            name:'徐州重工',
            position: '工厂车研发部工程师',
            major: '精密机械制造',
            number: '12',
          },{
            name:'北京青码科技',
            position: '前端开发工程师',
            major: 'Vue、React',
            number: '4',
          }
          ],
          dialogVisible: false,
          editObj:{
            name:'',
            position: '',
            major: '',
            number: '',
          },
          userIndex:0,
        }
      },
      methods:{
        //添加
        addUser(){
          if(!this.userInfo.name){
            this.$message({
              message: '请输入你的公司名！',
              
            });
            return;
          }
          if(!this.userInfo.position){
            this.$message({
              message: '请输入你的职位！',
              type: 'warning'
            });
            return;
          }
          if (!this.userInfo.major) {
            this.$message({
              message: '请输入你的专业！',
              type: 'warning'
            });
            return;
          }
          if (!this.userInfo.number) {
            this.$message({
              message: '请输入数量！',
              type: 'warning'
            });
            return;
          }
          this.tableData.push(this.userInfo);
          this.userInfo = {
            name:'',
            position: '',
            major: '',
            number: '',
          };
        },
 
        //删除
        delUser(idx){
          this.$confirm('确认删除此用户信息？')
            .then(_ => {
              this.tableData.splice(idx, 1);
            })
            .catch(_ => {});
        },
        //编辑
        editUser(item,idx){
          this.userIndex = idx;
          this.editObj = {
            name: item.name,
            position: item.position,
            major: item.major,
            number: item.number,
          };
          this.dialogVisible = true;
        },
 
        handleClose(){
          this.dialogVisible = false;
        },
 
        confirm(){
          this.dialogVisible = false;
          Vue.set(this.tableData, this.userIndex, this.editObj);
            }
          },
        })
  </script>
 
</body>
</html>

以上就是VUE+Element实现增删改查的示例源码的详细内容，更多关于VUE+Element实现增删改查的资料请关注服务器之家其它相关文章！

原文链接：https://www.cnblogs.com/hxz0618/p/14017583.html?utm_source=tuicool&utm_medium=referral

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