vue中axios请求数据

首先引入包：yarn add axios
再导入 import axios from 'axios'

<template>
  <div>
    <h1>登&emsp;录</h1>
    <div class="login">
      <el-form :model="formData" ref="loginForm" :rules="rules">
        <el-form-item label="" prop="username">
          <el-input placeholder="请输入用户名" v-model="formData.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <el-form-item label="" prop="password">
          <el-input type="password" placeholder="请输入密码" show-password v-model="formData.password"
            prefix-icon="el-icon-lock"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="login">登录</el-button>

        </el-form-item>
      </el-form>
    </div>
  </div>

</template>

<script>

export default {
  data() {
    return {
      formData: {

        username: '',
        password: ''
      },
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },

        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },

        ]
      }
    }
  },
  methods: {
    login() {
      console.log(this.formData);
      //进行表单验证
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          //封装axios请求
          this.$ajax.get('/userlist',{
            params: {   
              username: this.formData.username,
              userpwd: this.formData.password  
            }
          })

            .then((res) => {
          //  console.log(res);
              if (res.length > 0 ) {

                console.log('登录成功');
                //将数据存入vuex中
                this.$store.commit('user_login', res[0]);
                this.$router.push({ name: 'users' });
                
              } else {
                this.$message.error('用户名或密码错误');
              }
            }).catch(err => {
            this.$message.error('请求失败');
            })
        } else {
          this.$message.error('表单验证失败');
          return false;
        }
      });

    }
  }
}
</script>

<style scoped>
.login {
  width: 300px;
  margin: 0 auto;
  padding-top: 10px;
}
</style>