missing script:serve报错
问题:
npm ERR! missing script: serve npm ERR! A complete log of this run can be found in: npm ERR! C:\Users.........
问题原因:
这个错误一般是忘记进入项目目录里面而导致的。
解决方案:
只需要先 cd 切换到创建的项目的目录里面再使用npm run
serve,否则就会报错
跨域限制:CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
问题:使用Axios无法成功跨域
Access to XMLHttpRequest at 'http://localhost:8080/api' from origin 'http://localhost:8088' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
问题原因:proxy代理没配置好,或者springboot端的接口对应不上。
解决方案:1、检查vue.config.js
module.exports = { devServer: { // 配置跨域代理 host: 'localhost', port: '8088', //vue程序端口换成8088,避免与Spring Boot项目端口冲突 https: false, open: true, proxy: { '/api': { // 匹配所有以 '/api'开头的请求路径 target: 'http://localhost:8080', // 代理目标的基础路径 changeOrigin: true, // 支持跨域 pathRewrite: { // 重写路径: 去掉路径中开头的'/api' '^/api': '' } } } } }
2、检查axios请求:
axios.get('http://localhost:8080/api/connect').then(function(response) { if (response.data) { console.log(response.data) } }).catch(function(error){ console.log(error); }) console.log("response done!")
3、检查后台代码,在后台controller加上@CrossOrigin注解
@RestController @CrossOrigin public class VueTest { @GetMapping("/api/connect") public String hivue(){ System.out.println("vue connect success!"); //System.out.println(mail); //System.out.println(password); return "regist successs"; } }
this.axios is not a function
问题:this.axios is not a function或者this.$axios is not a function
解决方案:Vue抛弃了this的概念,不要再用this.
运行项目失败 显示:npm ERR! code ELIFECYCLE errno 1 ..@0.1.0 serve: `vue-cli-service serve`
问题:
code ELIFECYCLE npm ERR! errno 1 npm ERR! usermana@0.1.0 serve: `vue-cli-service serve` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the usermana@0.1.0 serve script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
问题原因:可能是在某次关闭项目时出错,是node_modules丢失了部分文件
解决方案:删除node_modules,重新配置和安装依赖包
首先删除node_modules,然后强制清除缓存,然后重新安装
rm package-lock.json npm cache clear --force npm install