第十篇 - Vue接收后台Json数据

先看下想达到的效果，当用户名密码输错了，就报用户名密码错误。用户名密码成功了，就跳转到登录成功页面

上一节已经实现SpringBoot封装Json数据，这次使用Vue post API获取Json数据

HelloWorld.vue

/* eslint-disable */
<template>
  <div class="login_container">
    <div class="login_box">
      <div class="wai">
        <!-- 头像区域 -->
        <div class="avatar_box">
          <img src="../assets/head.png" alt="" />
        </div>
        <!-- 登录表单区域 -->
        <el-form
          ref="loginFormRef"
          :model="loginForm"
          :rules="loginFormRules"
          label-width="0px"
          class="login_form"
        >
          <!--        用户名-->
          <el-form-item prop="username">
            <el-input
              v-model="loginForm.username"
              prefix-icon="el-icon-user"
            ></el-input>
          </el-form-item>
          <!--        密码-->
          <el-form-item prop="password">
            <el-input
              v-model="loginForm.password"
              prefix-icon="el-icon-key"
              type="password"
            ></el-input>
          </el-form-item>
          <!--        按钮区域-->
          <el-form-item class="btns">
            <el-button type="primary" @click="Login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
          <div style="display:flex; justify-content:flex-start">{{loginForm.message}}</div>
        </el-form>
      </div>
    </div>
  </div>
</template>

<style lang="less" scoped>
  .login_container {
    background-color: darkcyan;
    height: 100%;
  }

  .login_box {
    width: 350px;
    height: 300px;
    background-color: white;
    border-radius: 15px;
    /*容器内居中*/
    position: absolute;
    left: 40%;
    top: 50%;
    transform: translate(-50%, -50%);

    .avatar_box {
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      /*边框阴影*/
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      background-color: #fff;

      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #993d3d;
      }
    }

    .login_form {
      position: absolute;
      bottom: 0;
      width: 100%;
      padding: 0 20px;
      box-sizing: border-box;
    }

    .btns {
      display: flex;
      justify-content: flex-end;
    }
    .wai {
      background-image: url("../assets/back.jpg");
      width: 577px;
      height: 300px;
      border-radius: 15px;
    }
  }
</style>

<script>
import qs from 'qs'
export default {
  data () {
    return {
      // 数据绑定对象
      loginForm: {
        username: 'W0103533',
        password: 'password',
        message: ''
      },
      loginFormRules: {
        // 验证用户
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
          {
            min: 3,
            max: 10,
            message: '长度在3到10个字符',
            trigger: 'blur'
          }
        ],
        password: [
          {required: true, message: '请输入登录密码', trigger: 'blur'},
          {
            min: 3,
            max: 15,
            message: '长度在3到15个字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    Login () {
      /* http://localhost:8081/api/login */
      this.$axios
        .post('http://localhost:8081/api/login', qs.stringify(this.loginForm))
        .then(successResponse => {
          console.log(successResponse.data)
          if (successResponse.data.code !== 200) {
            this.loginForm.message = successResponse.data.message
          } else {
            this.$router.push('/jump1test', () => {}, () => {})
          }
        })
        .catch(failResponse => {})
    },
    // 重置登录表单
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    }
  }
}
</script>

看看打印出来的successResponse.data是什么

登录错误时

登录正确时

 是不是正好是后端传过来的json数据，接收Json数据成功。