JavaWeb开发教程:2023.3.25第二十七天,JavaWeb-vue开发[java教程]

前言

记录时间:2023.3.25

已坚持的第二十七天

java从入门到精通

学习java时间历程记录打卡

早上7:00到 12:00

下午2:00到 7:00

JavaWeb-vue开发技术总结

1679754603-sheet

1679754638-sheet

完成代码练习

1.vue的入门

1.Vue-快速入门

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue-快速入门</title>
    <script src="js/vue.js"></script>
</head>
<body>

    <div id="app">
        <input type="text" v-model="message">
        {{message}}
    </div>

</body>
<script>
    //定义Vue对象
    new Vue({
        el: "#app", //vue接管区域
        data:{
            message: "Hello Vue"
        }
    })
</script>
</html>

2.Vue-指令-v-bind和v-model

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue-指令-v-bind</title>
    <script src="js/vue.js"></script>
</head>
<body>
    <div id="app">

        <a v-bind:href="url">链接1</a>
        <a :href="url">链接2</a>

        <input type="text" v-model="url">

    </div>
</body>
<script>
    //定义Vue对象
    new Vue({
        el: "#app", //vue接管区域
        data:{
           url: "https://www.baidu.com"
        }
    })
</script>
</html>

3.Vue-指令-v-on

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue-指令-v-on</title>
    <script src="js/vue.js"></script>
</head>
<body>
    <div id="app">

        <input type="button" value="点我一下" v-on:click="handle()">

        <input type="button" value="点我一下" @click="handle()">

    </div>
</body>
<script>
    //定义Vue对象
    new Vue({
        el: "#app", //vue接管区域
        data:{
           
        },
        methods: {
            handle: function(){
                alert("你点我了一下...");
            }
        }
    })
</script>
</html>

4.Vue-指令-v-if和v-show

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue-指令-v-if与v-show</title>
    <script src="js/vue.js"></script>
</head>
<body>
    <div id="app">
        
        年龄<input type="text" v-model="age">经判定,为:
        <span v-if="age <= 35">年轻人(35及以下)</span>
        <span v-else-if="age > 35 && age < 60">中年人(35-60)</span>
        <span v-else>老年人(60及以上)</span>

        <br><br>

        年龄<input type="text" v-model="age">经判定,为:
        <span v-show="age <= 35">年轻人(35及以下)</span>
        <span v-show="age > 35 && age < 60">中年人(35-60)</span>
        <span v-show="age >= 60">老年人(60及以上)</span>

    </div>
</body>
<script>
    //定义Vue对象
    new Vue({
        el: "#app", //vue接管区域
        data:{
           age: 20
        },
        methods: {
            
        }
    })
</script>
</html>

5.Vue-指令-v-for

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue-指令-v-for</title>
    <script src="js/vue.js"></script>
</head>
<body>
    <div id="app">

        <div v-for="addr in addrs">{{addr}}</div>

        <hr>

        <div v-for="(addr,index) in addrs">{{index + 1}} : {{addr}}</div>

    </div>
</body>
<script>
    //定义Vue对象
    new Vue({
        el: "#app", //vue接管区域
        data:{
           addrs:["北京", "上海", "西安", "成都", "深圳"]
        },
        methods: {
            
        }
    })
</script>
</html>

6.Vue-指令-案例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue-指令-案例</title>
    <script src="js/vue.js"></script>
</head>
<body>
    
    <div id="app">
        
        <table border="1" cellspacing="0" width="60%">
            <tr>
                <th>编号</th>
                <th>姓名</th>
                <th>年龄</th>
                <th>性别</th>
                <th>成绩</th>
                <th>等级</th>
            </tr>

            <tr align="center" v-for="(user,index) in users">
                <td>{{index + 1}}</td>
                <td>{{user.name}}</td>
                <td>{{user.age}}</td>
                <td>
                    <span v-if="user.gender == 1">男</span>
                    <span v-if="user.gender == 2">女</span>
                </td>
                <td>{{user.score}}</td>
                <td>
                    <span v-if="user.score >= 85">优秀</span>
                    <span v-else-if="user.score >= 60">及格</span>
                    <span style="color: red;" v-else>不及格</span>
                </td>
            </tr>
        </table>

    </div>

</body>

<script>
    new Vue({
        el: "#app",
        data: {
            users: [{
                name: "Tom",
                age: 20,
                gender: 1,
                score: 78
            },{
                name: "Rose",
                age: 18,
                gender: 2,
                score: 86
            },{
                name: "Jerry",
                age: 26,
                gender: 1,
                score: 90
            },{
                name: "Tony",
                age: 30,
                gender: 1,
                score: 52
            }]
        },
        methods: {
            
        },
    })
</script>
</html>

7.Vue-生命周期

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue-指令-v-for</title>
    <script src="js/vue.js"></script>
</head>
<body>
    <div id="app">

    </div>
</body>
<script>
    //定义Vue对象
    new Vue({
        el: "#app", //vue接管区域
        data:{
           
        },
        methods: {
            
        },
        mounted () {
            alert("vue挂载完成,发送请求到服务端")
        }
    })
</script>
</html>

2.学会用ajax技术

1. Ajax-原生方式

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>原生Ajax</title>
</head>
<body>
    
    <input type="button" value="获取数据" onclick="getData()">

    <div id="div1"></div>
    
</body>
<script>
    function getData(){
        //1. 创建XMLHttpRequest 
        var xmlHttpRequest  = new XMLHttpRequest();
        
        //2. 发送异步请求
        xmlHttpRequest.open('GET','http://yapi.smart-xwork.cn/mock/169327/emp/list');
        xmlHttpRequest.send();//发送请求
        
        //3. 获取服务响应数据
        xmlHttpRequest.onreadystatechange = function(){
            if(xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 200){
                document.getElementById('div1').innerHTML = xmlHttpRequest.responseText;
            }
        }
    }
</script>
</html>

2.引入Ajax-axios

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Ajax-Axios</title>
    <script src="js/axios-0.18.0.js"></script>
</head>
<body>
    
    <input type="button" value="获取数据GET" onclick="get()">

    <input type="button" value="删除数据POST" onclick="post()">

</body>
<script>
    function get(){
        //通过axios发送异步请求-get
        // axios({
        //     method: "get",
        //     url: "http://yapi.smart-xwork.cn/mock/169327/emp/list"
        // }).then(result => {
        //     console.log(result.data);
        // })


        axios.get("http://yapi.smart-xwork.cn/mock/169327/emp/list").then(result => {
            console.log(result.data);
        })
    }

    function post(){
        //通过axios发送异步请求-post
        // axios({
        //     method: "post",
        //     url: "http://yapi.smart-xwork.cn/mock/169327/emp/deleteById",
        //     data: "id=1"
        // }).then(result => {
        //     console.log(result.data);
        // })

        axios.post("http://yapi.smart-xwork.cn/mock/169327/emp/deleteById","id=1").then(result => {
            console.log(result.data);
        })
    }
</script>
</html>

3. Ajax-Axios-案例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Ajax-Axios-案例</title>
    <script src="js/axios-0.18.0.js"></script>
    <script src="js/vue.js"></script>
</head>
<body>
    <div id="app">
        <table border="1" cellspacing="0" width="60%">
            <tr>
                <th>编号</th>
                <th>姓名</th>
                <th>图像</th>
                <th>性别</th>
                <th>职位</th>
                <th>入职日期</th>
                <th>最后操作时间</th>
            </tr>

            <tr align="center" v-for="(emp,index) in emps">
                <td>{{index + 1}}</td>
                <td>{{emp.name}}</td>
                <td>
                    <img :src="emp.image" width="70px" height="50px">
                </td>
                <td>
                    <span v-if="emp.gender == 1">男</span>
                    <span v-if="emp.gender == 2">女</span>
                </td>
                <td>{{emp.job}}</td>
                <td>{{emp.entrydate}}</td>
                <td>{{emp.updatetime}}</td>
            </tr>
        </table>
    </div>
</body>
<script>
    new Vue({
       el: "#app",
       data: {
         emps:[]
       },
       mounted () {
          //发送异步请求,加载数据
          axios.get("http://yapi.smart-xwork.cn/mock/169327/emp/list").then(result => {
            this.emps = result.data.data;
          })
       }
    });
</script>
</html>

3.开发vue项目

1.案例效果截图

1679755731-image

1679755751-image

2.vue文件目录结构

1679755799-image

3.Element示例

<template>
  <div>
    <!-- button按钮 -->
    <el-row>
      <el-button>默认按钮</el-button>
      <el-button type="primary">主要按钮</el-button>
      <el-button type="success">成功按钮</el-button>
      <el-button type="info">信息按钮</el-button>
      <el-button type="warning">警告按钮</el-button>
      <el-button type="danger">危险按钮</el-button>
    </el-row>

    <br />

    <!-- Table 表格 -->
    <el-table :data="tableData" border style="width: 100%">
      <el-table-column prop="date" label="日期" width="180"> </el-table-column>
      <el-table-column prop="name" label="姓名" width="180"> </el-table-column>
      <el-table-column prop="address" label="地址"> </el-table-column>
    </el-table>

    <!-- Pagination 分页 -->
    <el-pagination background layout="total,sizes, prev, pager, next, jumper" 
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
     :total="1000"></el-pagination>

     <br><br>

     <!-- Dialog对话框 -->
     <!-- Table -->
    <el-button type="text" @click="dialogTableVisible = true">打开嵌套表格的 Dialog</el-button>

    <el-dialog title="收货地址" :visible.sync="dialogTableVisible">
      <el-table :data="gridData">
        <el-table-column property="date" label="日期" width="150"></el-table-column>
        <el-table-column property="name" label="姓名" width="200"></el-table-column>
        <el-table-column property="address" label="地址"></el-table-column>
      </el-table>
    </el-dialog>


    <!-- Dialog对话框-Form表单 -->
    <el-button type="text" @click="dialogFormVisible = true">打开嵌套Form的 Dialog</el-button>

    <el-dialog title="Form表单" :visible.sync="dialogFormVisible">
      <el-form ref="form" :model="form" label-width="80px">
        <el-form-item label="活动名称">
          <el-input v-model="form.name"></el-input>
        </el-form-item>

        <el-form-item label="活动区域">
          <el-select v-model="form.region" placeholder="请选择活动区域">
            <el-option label="区域一" value="shanghai"></el-option>
            <el-option label="区域二" value="beijing"></el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="活动时间">
          <el-col :span="11">
            <el-date-picker type="date" placeholder="选择日期" v-model="form.date1" style="width: 100%;"></el-date-picker>
          </el-col>
          <el-col class="line" :span="2">-</el-col>
          <el-col :span="11">
            <el-time-picker placeholder="选择时间" v-model="form.date2" style="width: 100%;"></el-time-picker>
          </el-col>
        </el-form-item>
        
        <el-form-item>
          <el-button type="primary" @click="onSubmit">提交</el-button>
          <el-button>取消</el-button>
        </el-form-item>
      </el-form>
    </el-dialog>


    
  </div>
</template>

<script>
export default {
  data() {
    return {
      form: {
        name: '',
        region: '',
        date1: '',
        date2: ''
      },
      gridData: [{
          date: '2016-05-02',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-04',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-01',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-03',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }],
        dialogTableVisible: false,
        dialogFormVisible: false,
      tableData: [
        {
          date: "2016-05-02",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1518 弄",
        },
        {
          date: "2016-05-04",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1517 弄",
        },
        {
          date: "2016-05-01",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1519 弄",
        },
        {
          date: "2016-05-03",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1516 弄",
        },
      ],
    };
  },
  methods: {
    handleSizeChange:function(val){
        alert("每页记录数变化" + val)
    },
    handleCurrentChange:function(val){
        alert("页码发生变化" + val)
    },
    onSubmit:function(){
        alert(JSON.stringify(this.form));
    }
  }
};
</script>

<style>
</style>

4.开发页面

<template>
    <div>
        <el-container  style="height: 700px; border: 1px solid #eee">
            <el-header style="font-size:40px; background-color: rgb(238, 241, 246)">tlias 智能学习辅助系统</el-header>
            <el-container>
                <el-aside width="230px" style="border: 1px solid #eee">
                    <el-menu :default-openeds="['1', '3']">
                        <el-submenu index="1">
                            <template slot="title"><i class="el-icon-message"></i>系统信息管理</template>
                            <el-menu-item index="1-1">
                                <router-link to="/dept">部门管理</router-link>
                            </el-menu-item>
                            <el-menu-item index="1-2">
                                <router-link to="/emp">员工管理</router-link>
                            </el-menu-item>
                        </el-submenu>
                        </el-menu>
                </el-aside>


                <el-main>
                    <!-- 表格 -->
                    <el-table :data="tableData" border>
                        <el-table-column prop="name" label="名称" width="250"></el-table-column>
                        <el-table-column prop="updatetime" label="最后操作时间" width="250"></el-table-column>
                        <el-table-column label="操作">
                            <el-button type="primary" size="mini">编辑</el-button>
                            <el-button type="danger" size="mini">删除</el-button>
                        </el-table-column>
                    </el-table>
                </el-main>
            </el-container>
        </el-container>
    </div>
</template>

<script>
export default {
    data() {
        return {
            tableData: [{
                id:1,
                name:"学工部",
                updatetime:"2010-01-01 12:00:00"
            },{
                id:2,
                name:"教研部",
                updatetime:"2010-01-01 12:00:00"
            },{
                id:3,
                name:"就业部",
                updatetime:"2010-01-01 12:00:00"
            },{
                id:4,
                name:"人事部",
                updatetime:"2010-01-01 12:00:00"
            },{
                id:5,
                name:"行政部",
                updatetime:"2010-01-01 12:00:00"
            }]
        }
    },
    methods: {
        
    }
}
</script>

<style>

</style>

5.开发页面

<template>
    <div>
        <el-container  style="height: 700px; border: 1px solid #eee">
            <el-header style="font-size:40px; background-color: rgb(238, 241, 246)">tlias 智能学习辅助系统</el-header>
            <el-container>
                <el-aside width="230px" style="border: 1px solid #eee">
                    <el-menu :default-openeds="['1', '3']">
                        <el-submenu index="1">
                            <template slot="title"><i class="el-icon-message"></i>系统信息管理</template>
                            <el-menu-item index="1-1">
                                <router-link to="/dept">部门管理</router-link>
                            </el-menu-item>
                            <el-menu-item index="1-2">
                                <router-link to="/emp">员工管理</router-link>
                            </el-menu-item>
                        </el-submenu>
                        </el-menu>
                </el-aside>


                <el-main>
                    <!-- 表单 -->
                    <el-form :inline="true" :model="searchForm" class="demo-form-inline">
                        <el-form-item label="姓名">
                            <el-input v-model="searchForm.name" placeholder="姓名"></el-input>
                        </el-form-item>

                        <el-form-item label="性别">
                            <el-select v-model="searchForm.gender" placeholder="性别">
                                <el-option label="男" value="1"></el-option>
                                <el-option label="女" value="2"></el-option>
                            </el-select>
                        </el-form-item>
                        
                        <el-form-item label="入职日期">
                            <!-- 日期选择器 -->
                            <el-date-picker
                                v-model="searchForm.entrydate"
                                type="daterange"
                                range-separator="至"
                                start-placeholder="开始日期"
                                end-placeholder="结束日期">
                            </el-date-picker>
                        </el-form-item>
                        
                        <el-form-item>
                            <el-button type="primary" @click="onSubmit">查询</el-button>
                        </el-form-item>
                    </el-form>

                    <!-- 表格 -->
                    <el-table :data="tableData" border>
                        <el-table-column prop="name" label="姓名" width="180"></el-table-column>
                        <el-table-column label="图像" width="180">
                            <template slot-scope="scope">
                                <img :src="scope.row.image" width="100px" height="70px">
                            </template>
                        </el-table-column>
                        <el-table-column label="性别" width="140">
                            <template slot-scope="scope">
                                {{scope.row.gender == 1 ? '男':'女'}}
                            </template>
                        </el-table-column>
                        <el-table-column prop="job" label="职位" width="140"></el-table-column>
                        <el-table-column prop="entrydate" label="入职日期" width="180"></el-table-column>
                        <el-table-column prop="updatetime" label="最后操作时间" width="230"></el-table-column>
                        <el-table-column label="操作" >
                            <el-button type="primary" size="mini">编辑</el-button>
                            <el-button type="danger" size="mini">删除</el-button>
                        </el-table-column>
                    </el-table>

                    <br>
                    
                    <!-- 分页条 -->
                    <!-- Pagination 分页 -->
                    <el-pagination background layout="total,sizes, prev, pager, next, jumper" 
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :total="1000"></el-pagination>

                </el-main>
            </el-container>
        </el-container>
    </div>
</template>

<script>
import axios from 'axios';

export default {
    data() {
        return {
            tableData: [],
            searchForm: {
               name:"",
               gender:"",
               entrydate:[]
            }
        }
    },
    methods: {
        onSubmit:function(){
            alert("查询数据");
        },
        handleSizeChange:function(val){
            alert("每页记录数变化" + val)
        },
        handleCurrentChange:function(val){
            alert("页码发生变化" + val)
        }
    },
    mounted () {
        //发送异步请求,获取数据
        axios.get("http://yapi.smart-xwork.cn/mock/169327/emp/list").then((result) => {
            this.tableData = result.data.data;  
        });
    }
}
</script>

<style>

</style>

6.app.vue的核心文件

<template>
  <div>
    <!-- <h1>{{message}}</h1> -->
    <!-- <element-view></element-view> -->

    <!-- 员工管理 -->
    <!-- <emp-view></emp-view> -->

    <router-view></router-view>

  </div>
</template>

<script>
/* import EmpView from './views/tlias/EmpView.vue' */
/* import ElementView from './views/element/ElementView.vue' */
export default {
  components: {/* EmpView */ /* ElementView */ },
  data() {
    return {
      message: "Hello vue222"
    }
  },
  methods: {
    
  }
}
</script>

<style>

</style>

7.main.js的引入文件

import Vue from 'vue'
import App from './App.vue'
import router from './router'
//引入ElementUI组件
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';

Vue.config.productionTip = false
Vue.use(ElementUI);

new Vue({
  router,
  render: h => h(App)
}).$mount("#app")

8.配置端口7000

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
  transpileDependencies: true,
  devServer:{
    port: 7000
  }
})

9.启动vue项目

//启动vue项目npm命令
npm run serve

1679756102-image

视频总结

1.Vue-概述

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=29

2.Vue-指令-v-bind&v-model&v-on

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=30

3.Vue-指令-v-if&v-show&v-for

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=31

4.Vue-指令-案例

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=32

5.Vue-生命周期

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=33

6. Ajax-介绍

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=34

7.Ajax-Axios2

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=35

8.前端工程化

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=36

9.前端工程化-环境准备

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=37

10.前端工程化-Vue项目

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=38

11.前端工程化-Vue项目开发流程

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=39

12.Element-快速入门

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=40

13.Element-组件-Table表格

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=41

14.Element-组件-Pagination分页

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=42

15.Element-组件-Dialog对话框

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=43

16.Element-组件-Form表单

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=44

17.Element-案例-基本页面布局

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=45

18.Element-案例-页面组件实现

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=46

19.Element-案例-axios异步加载数据

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=47

20.vue路由

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=48

21.打包部署

https://www.bilibili.com/video/BV1m84y1w7Tb/?p=49

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