jq-Ajax跨域解决方法

// 前端：
var urls = 'http://10.123.123.63:8086/BDC/r?wf_num=R_YTCF_B006';
   var modules = {
       "reqData": {
           "type": "FDZL",
           "value": "B1栋办公 10层1011房"
       }
   }

   $.ajax({
           type: "POST",
           url: urls,
           async: true,  
           data: JSON.stringify(modules),
           contentType: "text/plain; charset=utf-8",
           dataType: "json",
           success: function(data) {
               console.log(data)
           }
       });
// 后端：  java
   import javax.servlet.http.*;
   HttpServletResponse httpResponse =  BeanCtx.getResponse();
   httpResponse.setHeader("Access-Control-Allow-Origin", "*");