本文共 3370 字，大约阅读时间需要 11 分钟。

jxbrowser 在 jxbrowser  中有一个接口叫做 NetworkDelegate  处理url 请求和相应

Modifier and Type	Method and Description
boolean	( params) 当请求接收到身份验证并无法使用缓存凭据进行响应时，将调用此方法。
void	( params) 当服务器发起重定向即将发生时，将调用此方法
void	( params) 当一个请求即将发生并且初始头已经准备好时调用这个方法
void	( params) The similar to   method.
void	( params) 在发起请求之前
boolean	(java.lang.String url, java.util.List<> cookies) 决定是否可以将cookie发送回Web服务器时，将调用此方法。
boolean	(java.lang.String url, java.util.List<> cookies) This method is invoked when Chromium engine decides whether  cookies can be saved for the  url or not.
void	( params) 请求成功的时候调用
void	( params) 接收数据的时候调用
void	( params) This method is invoked when a request is being destroyed.
void	( params) This method is invoked each time that an HTTP(S) response header is received.
void	( params) This method is invoked when Chromium proxy resolver failed to parse PAC script file to extract proxy settings.
void	( params) This method is invoked when the first byte of the response body is received.
void	( params) This method is invoked right before the HTTP headers are sent to the network.

我的需求是 访问一个网页，这个网页会发送一个ajax请求，我要拦截他，获取到json

首先我们自己写一个NetworkDelegate  只需要继承DefaultNetworkDelegate 即可。

然后写你需要重写的方法。

因为要模拟手机端访问所以我要重写onBeforeSendHeaders 

因为要接收ajax返回内容故我需要重写onDataReceived

public class JackNetworkDelegate4A47 extends DefaultNetworkDelegate{    private  JFrame frame;    private BrowserView browserView;        public JackNetworkDelegate4A47( JFrame frame,BrowserView browserView)    {        this.frame = frame;        this.frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);        this.browserView = browserView;    }            public void onBeforeSendHeaders(BeforeSendHeadersParams params)    {        params.getHeadersEx().setHeader("User-Agent", "Mozilla/5.0 (Linux; U; Android 6.0.1; zh-cn; ZUK Z2131 Build/MMB29M) AppleWebKit/537.36 (KHTML, like Gecko)Version/4.0 Chrome/37.0.0.0 MQQBrowser/7.5 Mobile Safari/537.36");        params.getHeadersEx().setHeader("upgrade-insecure-requests","1");        params.getHeadersEx().setHeader("cache-control","max-age=0");        params.getHeadersEx().setHeader("accept-encoding","gzip, deflate, sdch, br");        params.getHeadersEx().setHeader("accept-language","zh-CN,zh;q=0.8");        params.getHeadersEx().setHeader("upgrade-insecure-requests","1");        params.getHeadersEx().removeHeader("Connection");    }    public void onDataReceived(DataReceivedParams params)    {       // System.out.println(params.getURL());        if(params.getURL().contains("webmain.php"))        {            System.out.println(new String(params.getData()));            params.getBrowser().dispose();            frame.dispose();            frame = null;        }        // params.getData()    }    }

在主线程

final Browser browser = new Browser();        BrowserView browserView = new BrowserView(browser);        JFrame frame = new JFrame();        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);        frame.add(browserView, BorderLayout.CENTER);        frame.setSize(700, 500);        frame.setLocationRelativeTo(null);        frame.setVisible(true);        // Handle proxy authorization.        browser.getContext().getNetworkService().setNetworkDelegate(new JackNetworkDelegate4A47(frame,browserView));          browser.loadURL("https://api.47ks.com/webcloud/?v=http://film.sohu.com/album/9353216.html?channeled=1200110001&type=lemid");

转载地址：http://vrwni.baihongyu.com/