Springboot 实现跨域访问无需使用jsonp的实现代码

@override

   public boolean prehandle(httpservletrequest request, httpservletresponse response, object handler)

       throws exception {

     //string origin = (string) request.getremotehost()+":"+request.getremoteport();

     response.addheader( "access-control-allow-origin" , "*" );

     //system.out.println("access-control-allow-origin");

     response.addheader( "access-control-allow-methods" , "post, get, options, delete" );

     //system.out.println("access-control-allow-methods");

     response.addheader( "access-control-max-age" , "3600" );

     //system.out.println("access-control-max-age");

     response.addheader( "access-control-allow-headers" , "x-requested-with,authorization" );

     //system.out.println("access-control-allow-headers");

     response.addheader( "access-control-allow-credentials" , "true" );

     //system.out.println("access-control-allow-credentials");

     string api_key = request.getparameter( "api_key" );

     string api_secret = request.getparameter( "api_secret" );

;

       if (check(api_key,api_secret)){

         return true ;

       }

       response.senderror( 400 , "api_key or api_secret are error" );

       return false ;

   }

@configuration

public class mywebmvcconfigurer implements webmvcconfigurer {

   @bean

   apiintercepter apiintercepter() {

     return new apiintercepter();

   }

   @override

   public void addinterceptors(interceptorregistry registry) {

     // 添加一个拦截器，连接以/v1为前缀的 url路径

     registry.addinterceptor(loginintercepter()).addpathpatterns( "/admin/**" );

     registry.addinterceptor(apiintercepter()).addpathpatterns( "/v1/**" );

   }

}