vue/配置axios（前后端数据连通/api接口的调用）

1.创建apis文件

2.写入调用的api地址且暴露出去。

import httpInstance from '@/utils/http';export  function getHomeNav() {return httpInstance({url: 'http://10.0.11.91:91/dailyreport/getdailyreportall',})
}

3.创建文件编写拦截器

代码部分

//axios基础封装
import axios from 'axios';
import { ElMessage } from 'element-plus';// 创建axios实例，可以发起请求获得响应的实例。
const httpInstance = axios.create({//baseURL: 'http://localhost:8080', // 请求的基础路径timeout: 5000 // 请求超时时间
});// 请求拦截器
httpInstance.interceptors.request.use(config => {// 在发送请求之前做一些处理return config;}, e => Promise.reject(e)// 请求错误时做一些处理
);  
// 响应拦截器
httpInstance.interceptors.response.use(res => res.data, e => {if(e.response.status === 401){ElMessage.error('请先登录')//跳转登录页面}else{ElMessage({type:'error',message:'请重新登录'+e})}return Promise.reject(e)})
export default httpInstance;
//用于在其他位置调用

4.写验证函数

import './assets/main.css'import { createApp } from 'vue'
//路由工具
import router from './router'
// import ElementPlus from 'element-plus'
// import 'element-plus/dist/index.css'
import App from './App.vue'//测试接口函数
// @ts-ignore
import {getHomeNav} from '@/apis/testAPI'getHomeNav().then((res: any) => {console.log(res)
})const app = createApp(App)
app.use(router)
// app.use(ElementPlus)
app.mount('#app')

5.打开服务器端添加一个注解允许进行跨域访问

@CrossOrigin

接口部分代码

package com.log.controller;import com.log.entites.DailyReport;
import com.log.entites.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;import java.util.ArrayList;@RestController
@CrossOrigin
@RequestMapping("dailyreport")
public class Daily_reportController_Consumer {public static final String REST_URL_PREFIX = "http://127.0.0.1:9001";@Autowired//装配private RestTemplate restTemplate;//与提供者传递数据的工具@GetMapping("getdailyreportall")public Result getUserinfoall(){return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/getdailyreportall",Result.class);}@GetMapping("getdailyreportbyid")public Result getDailyReportByid(Integer id){return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/getdailyreportbyid?id="+id,Result.class);}@GetMapping("getdailyreportusid")public Result selectDailyReportidUsid(Integer id){System.out.println(id);return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/getdailyreportusid?id="+id,Result.class);}@GetMapping("getdailyreportdate")public Result<ArrayList<DailyReport>> selectDailyReportDate(String date){return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/getdailyreportdate?date="+date,Result.class);}@GetMapping("getdailyreportdateup")public Result<ArrayList<DailyReport>> selectDailyReportDateUp(){return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/getdailyreportdateup",Result.class);}@GetMapping("getdailyreportdatedown")public Result<ArrayList<DailyReport>> selectDailyReportDateDown(){return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/getdailyreportdatedown",Result.class);}@GetMapping("getdailyreportdatstatus")public Result<ArrayList<DailyReport>> selectDailyReportStatus(String status){return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/getdailyreportdatstatus?status="+status,Result.class);}//添加@PostMapping("setdailyreport")public Result<DailyReport> insertDaolyReport(@RequestBody DailyReport dailyreport){return restTemplate.postForObject(REST_URL_PREFIX+"/dailyreport/setdailyreport",dailyreport,Result.class);}//修改@PostMapping("updailyreportbyid")public Result<DailyReport> updateDaolyReportByid(@RequestBody DailyReport dailyreport) {return restTemplate.postForObject(REST_URL_PREFIX + "/dailyreport/updailyreportbyid",dailyreport, Result.class);}@GetMapping("deletdailyreportbyid")public Result<DailyReport> deleteDaolyReport(Integer id){return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/deletdailyreportbyid?id="+id,Result.class);}@GetMapping("deletdailyreportall")public Result<DailyReport>deleteDaolyReportusAll(Integer id){return restTemplate.getForObject(REST_URL_PREFIX+"/dailyreport/deletdailyreportall?id="+id,Result.class);}@PostMapping("upevaluatio")public Result<DailyReport>updateDaolyReportevaluation(@RequestBody DailyReport dailyreport){return restTemplate.postForObject(REST_URL_PREFIX+"/dailyreport/upevaluatio",dailyreport,Result.class);}
}

6.启动服务测试

启动后端服务和前端服务访问网址，打开网页控制台出现数据库传来的数据。

api接口调用成功。