1.导入cors-filter-1.7.jar，java-property-utils-1.9.jar两个jar包

2.在web.xml里配上:

             
      
       CORS
              
      
       com.thetransactioncompany.cors.CORSFilter
              
                  
       
        cors.allowOrigin
                   
       
        *
               
              
                  
       
        cors.supportedMethods
                   
       
        GET, POST, HEAD, PUT, DELETE
               
              
                  
       
        cors.supportedHeaders
                   
       
        Accept, Origin, X-Requested-With, Content-Type, Last-Modified
               
              
                  
       
        cors.exposedHeaders
                   
       
        Set-Cookie
               
              
                  
       
        cors.supportsCredentials
                   
       
        true
               
          
         
             
      
       CORS
              
      
       /*