Java后端解决前后端分离的跨域问题

解决方式：后端解决，前端不需要解决跨域问题。

//支持跨域请求
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with,request-source,Token, Origin,imgType, Content-Type, cache-control,postman-token,cookie, Accept,authorization");
        response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));

Access-Control-Allow-Origin:* 表示允许任何域名跨域访问，由于设置存在安全隐患，建议将改成你想允许的域名。