vue.js3: 用axios访问接口(vue@3.2.37 / axios@0.27.2)

一，安装axios库:

1，相关地址

官网:

https://axios-http.com/

代码地址:

https://github.com/axios/axios

2,安装

liuhongdi@lhdpc:/data/vue/axios$ npm install --save axios
 
added 5 packages in 3s

3,查看已安装的库的版本:

liuhongdi@lhdpc:/data/vue/axios$ npm list axios
axios@0.1.0 /data/vue/axios
└── axios@0.27.2

说明：刘宏缔的架构森林是一个专注架构的博客，地址：https://www.cnblogs.com/architectforest

         对应的源码可以访问这里获取： https://github.com/liuhongdi/
         或: https://gitee.com/liuhongdi

说明：作者:刘宏缔 邮箱: 371125307@qq.com

二，开发环境配置:

vue.config.js 中需要配置proxy，否则会报跨域的错误:

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
  transpileDependencies: true,
  devServer:{
    open:false,   //如值为true时，会自动打开浏览器
    proxy:{
      '/api':{
        target:`http://127.0.0.1:8001`,
        pathRewrite:{'^/api':''},
        changeOrigin:true,
      }
    },
  }
})

三，js代码:

 Home.vue

<template>
<div>
  <button @click="getApi">get方式访问api数据</button>
  <button @click="postApi">post方式访问api数据</button>
</div>
</template>

<script>
import axios from 'axios'

export default {
  name: "HomePage",
  setup() {
    //get方式获取数据
    const getApi = () => {
      let url = "/api/home/home";
      let getData = {
          msg:'hello',
      };
      axios({
        method:"get",
        url:url,
        params:getData,
      }).then((res) => {
            console.log(res.data);
            if (res.data.code == 0) {
              let data = res.data.data;
              alert("success:content:"+data.content);
            } else {
              alert("error:"+res.data.msg);
            }
          }
      ).catch(err=>{
          console.log(err);
          alert('网络错误:'+err.message);
      });
    }

    //post方式提交数据
    const postApi = () => {
      let url = "/api/home/postdata";
      let postData = {
        userName:'laoliu',
        nickName:'老刘',
      };
      axios({
        method:"post",
        url:url,
        data:postData,
        headers:{'Content-Type': 'multipart/form-data'},
      }).then((res) => {
            //console.log(res.data);
            if (res.data.code == 0) {
              let data = res.data.data;
              console.log(data);
              let nickName = data.postParams.nickName;
              alert("success:提交的昵称:"+nickName);
            } else {
              alert("error:"+res.data.msg);
            }
          }
      ).catch(err=>{
        console.log(err);
        alert('网络错误:'+err.message);
      });
    }

    return {
      getApi,
      postApi,
    }
  }
}
</script>

<style scoped>

</style>

四，php接口的返回数据:

1,get方式

2,post方式:

五，测试效果

get正常返回时:

get网络错误时:

post正常返回时:

六，查看vue框架的版本:

root@lhdpc:/data/vue/axios# npm list vue
axios@0.1.0 /data/vue/axios
├─┬ @vue/cli-plugin-babel@5.0.6
│ └─┬ @vue/babel-preset-app@5.0.6
│   └── vue@3.2.37 deduped
└─┬ vue@3.2.37
  └─┬ @vue/server-renderer@3.2.37
    └── vue@3.2.37 deduped