java后台跨域上传

前段时间在做ajaxfileupload的跨域上传功能，因为是手机端的上传，所以不能使用swfupload插件，就用了ajaxfileupload的方式，但是跨域问题一直没有解决，所以就拐了个弯儿，先上传到本地，再在java的后台实现。具体代码如下：

private static final String url="http://XXXX";

public static String upload(String fileName,File file ) throws IOException{

HttpClient hc=HttpClients.createDefault();
HttpPost httpPost=new HttpPost(url);

        MultipartEntityBuilder reqEntity =MultipartEntityBuilder.create();  
        reqEntity.addPart(fileName, new FileBody(file));  

        httpPost.setEntity(reqEntity.build());  

HttpResponse response=hc.execute(httpPost);

HttpEntity entity = response.getEntity();
System.out.println(response.getStatusLine().getStatusCode());
String resultStr=null;
if(HttpStatus.SC_OK==response.getStatusLine().getStatusCode()){ 
if(entity!=null){
resultStr=EntityUtils.toString(entity, "GB2312");
}

System.out.println(resultStr);
}
return resultStr;
}

public static void main(String[] args) throws IOException {

String resultStr=upload("file001",new File("D:/Chrysanthemum.jpg"));

System.out.println(resultStr);

JSONObject json=JSONObject.fromObject(resultStr);

}

最后通过返回的图片路径，在本地显示。。