Vue2 记账单案例:基本渲染、添加删除、axios请求、echarts饼图

 效果

 

代码 

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <!-- CSS only -->
    <link
      rel="stylesheet"
      href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css"
    />
    <style>
      .red {
        color: red!important;
      }
      .search {
        width: 300px;
        margin: 20px 0;
      }
      .my-form {
        display: flex;
        margin: 20px 0;
      }
      .my-form input {
        flex: 1;
        margin-right: 20px;
      }
      .table > :not(:first-child) {
        border-top: none;
      }
      .contain {
        display: flex;
        padding: 10px;
      }
      .list-box {
        flex: 1;
        padding: 0 30px;
      }
      .list-box  a {
        text-decoration: none;
      }
      .echarts-box {
        width: 600px;
        height: 400px;
        padding: 30px;
        margin: 0 auto;
        border: 1px solid #ccc;
      }
      tfoot {
        font-weight: bold;
      }
      @media screen and (max-width: 1000px) {
        .contain {
          flex-wrap: wrap;
        }
        .list-box {
          width: 100%;
        }
        .echarts-box {
          margin-top: 30px;
        }
      }
    </style>
  </head>
  <body>
    <div id="app">
      <div class="contain">
        <!-- 左侧列表 -->
        <div class="list-box">

          <!-- 添加资产 -->
          <form class="my-form">
            <input v-model.trim="name" type="text" class="form-control" placeholder="消费名称" />
            <input v-model.number="price" type="text" class="form-control" placeholder="消费价格" />
            <button v-on:click="add" type="button" class="btn btn-primary">添加账单</button>
          </form>

          <table class="table table-hover">
            <thead>
              <tr>
                <th>编号</th>
                <th>消费名称</th>
                <th>消费价格</th>
                <th>操作</th>
              </tr>
            </thead>
            <tbody>
              <tr v-for="(item,index) in list" :key="item.id">
                <td>{{ index + 1 }}</td>
                <td>{{ item.name }}</td>
                <!-- 保留小数点后面2位 -->
                <td :class="{red: item.price >500}">{{ item.price.toFixed(2) }}</td>
                <td><a v-on:click.prevent="del(item.id)" href="javascript:;">删除</a></td>
              </tr>
              
            </tbody>
            <tfoot>
              <tr>
                <td colspan="4">消费总计:{{totalCount.toFixed(2)}}</td>
              </tr>
            </tfoot>
          </table>
        </div>
        
        <!-- 右侧图表 -->
        <div class="echarts-box" id="main"></div>
      </div>
    </div>
    <script src="//i2.wp.com/cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.common.js"></script>
    <script src="//i2.wp.com/cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
    <script src="//i2.wp.com/cdn.bootcdn.net/ajax/libs/axios/1.5.0/axios.js"></script>
    <script>
      /**
       * 接口文档地址:
       * https://www.apifox.cn/apidoc/shared-24459455-ebb1-4fdc-8df8-0aff8dc317a8/api-53371058
       * 
       * 功能需求:
       * 1. 基本渲染
       * 2. 添加功能
       *   发送请求添加数据,重新渲染
       * 3. 删除功能
       * 4. 饼图渲染;
       *    初始化饼图,根据数据实时更新
       */
      const app = new Vue({
        el: '#app',
        data: {
          list:[],
          name:'',
          price:'',
        },
        computed:{
          totalCount(){
            return this.list.reduce((sum,item)=>sum+item.price,0 )
          }
        },

        // 请求数据 存储到list中
        created(){
          this.getList()
        },

        mounted(){
          this.myChart = echarts.init(document.querySelector('#main'))
          this.myChart.setOption(
            {   
              // 标题
                title: {
                  text: '消费账单列表',
                  left: 'center'
                },
                // 提示框
                tooltip: {
                  trigger: 'item'
                },
                // 图例,左面显示
                legend: {
                  orient: 'vertical',
                  left: 'left'
                },
                series: [
                  {
                    name: '消费账单',
                    type: 'pie',
                    radius: '80%', //圆的半径
                    data: [
                      
                    ],
                    emphasis: {
                      itemStyle: {
                        shadowBlur: 10,
                        shadowOffsetX: 0,
                        shadowColor: 'rgba(0, 0, 0, 0.5)'
                      }
                    }
                  }
                ]
              }
          )
        },


        methods:{
          // 封装获取列表数据
          async getList(){
            const res = await axios.get('https://applet-base-api-t.itheima.net/bill',{
            params:{
              creator:'zhiyuan'
            }
          })
          this.list = res.data.data
          // 更新图表
          this.myChart.setOption({
            series: [
                  {
                    data: this.list.map(item=>({value:item.price,name:item.name}))
                  }
                ]
          })

          },

          async del(id){
            const res = await axios.delete(`https://applet-base-api-t.itheima.net/bill/${id}`)
            // 重新渲染
            this.getList()
          },
          async add(){
            if(!this.name){
              alert('请输入消费名称')
              return
            }
            if(typeof this.price !== 'number'){
              alert('价格输入不规范')
              return
            }
            const res =await axios.post('https://applet-base-api-t.itheima.net/bill',{
                creator:"zhiyuan",
                name:this.name,
                price:this.price
            })
            // 重新渲染
            this.getList()
            this.name='',
            this.price=''
          }
        }
      })

    

    
    </script>
  </body>
</html>