js跨域问题新方案

只要创建一个空图片。

js代码:

var data = "http://localhost:8080/test?id="+id+"&content="+encodeURIComponent(content); //序列化表单数据 
 new Image().src=data;

 

后端返回一个空图片(后端采用mina框架),核心代码如下:

在MessageHandler的实现类中,

Class MyMessageHandler implements MessageHandler{

  public void handle(IoSession session, Message message) {

    .......................... 

 response.setStatus(200);
    response.setStatusText("OK");
    response.setHeaders(new String[]{
      "Server: AsmeServer",
      "Pragma: No-cache",
      "Cache-Control: no-cache",
      "Expires: Thu, 01 Jan 1970 00:00:00 GMT",
      "P3P: CP='IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT'",
      "Set-Cookie: opt=" + (inout ? "0" : "1") + COOKIE_ATTR,
      "Content-Type: image/gif",
      "Content-Length: 43",
      "Connection: close"
    });
    response.setContent(CookieUtils.IMG11);
    session.write(response).addListener(IoFutureListener.CLOSE);

    ............................... 

  }

}

 

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