manifest.json里找到H5，添加下面代码

请求封装里直接 url = ‘/test’ 就可以

"devServer" : {"https" : false,"port" : 8080,"proxy" : {"/test" : {"target" : "http://192.168.5.20:8080","changeOrigin" : true,"secure" : false,"pathRewrite" : {"^/test" : ""}},"/online" : {"target" : "https://app.com","changeOrigin" : true,"secure" : false,"pathRewrite" : {"^/online" : ""}}}
},
"router" : {"mode" : "history"
}