Vue axios Post请求 403 解决之道

前言：

刚开始请求的时候报 CORS 错误，通过前端项目配置后算是解决了，然后，又开始了新的报错 403 ERR_BAD_REQUEST。但是 GET 请求是正常的。

后端的 Controller 接口代码如下：

@PostMapping(value = "/login2")@ResponseBodypublic LoginReq login2(@RequestBody LoginReq req, HttpServletRequest servletRequest, HttpServletResponse response) {System.out.println("---- login2 ----- userName = " + req.getUserName());
//        // 设置js请求跨域解决response.addHeader("Access-Control-Allow-Origin", "*");response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");response.setHeader("Access-Control-Allow-Methods", "GET, PUT, OPTIONS, POST");String userCode = servletRequest.getHeader("userCode");String accessToken = servletRequest.getParameter("accessToken");System.out.println("---- login2 --------------- accessToken = " + accessToken+" , userCode = " + userCode);String user = JSONObject.toJSONString(req);System.out.println("---- login2 ----- user = " + user);System.out.println("---- login2 -----  birthday = " + req.getBirthday());SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");Date date = null;try {date = simpleDateFormat.parse(simpleDateFormat.format(req.getBirthday()));} catch (ParseException e) {e.printStackTrace();}System.out.println("date = " + simpleDateFormat.format(date));req.setBirthday(new Date());// 获取 cookieCookie[] cookies = servletRequest.getCookies();if (cookies != null && cookies.length > 0) {for (Cookie cookie : cookies) {String name = cookie.getName();String value = cookie.getValue();System.out.println("cookie >> name = " + name + " , value = " + value);}}if (req.getUserName().isEmpty() || req.getPwd().isEmpty()) {throw new RuntimeException("userName or pwd is empty");}return req;}

前端的调用代码如下：

 axios({method: 'POST',url: 'login/demo_war_exploded/login2',data: JSON.stringify({'userName':"朱",'pwd':"pass1234!",'birthday':"2022-12-06"}),headers: {'Content-Type' : 'application/json'}}).then(response => {console.log(response)}).catch(function (error) {console.log(error)})

解决跨域问题的前端配置：

 proxy: {"/login" :{target: "http://localhost:8180/",changeOrigin: true,//ws: true,//websocket支持secure: false,pathRewrite: {"^/login": ""},}}

403 报错如下图：
在这里插入图片描述
网上搜索了一堆都不行，各种五花八门的答案，对我来说都是无效的。
直到后面问了一个前端的同事，他让我在配置跨域的地方加一行配置，结果就 OK 啦，

proxy: { //配置多个跨域"/login" :{target: "http://localhost:8180/",changeOrigin: true,//ws: true,//websocket支持secure: false,pathRewrite: {"^/login": ""},// 后面新增的配置onProxyReq(proxyReq) {proxyReq.removeHeader('origin')}}},