java - webview 没有命中服务器套接字代理

Question

我已经使用下面的这段代码设置了我的 webview 的代理:

ProxySettings.setProxy(mContext, "http://127.0.0.1", PORT);

这是我的套接字服务器监听器

serverSocket = new ServerSocket(PORT);
thread = new Thread(runnable, this.getClass().getSimpleName());


public void startlistener() {
        listening = true;
        thread.start();

    }

private Runnable runnable = new Runnable() {

        @Override
        public void run() {
            while (listening) {
                try {
                    Socket accept = serverSocket.accept();

                    String data = getData(accept);

                    httpHandler.handleRequest(data);

                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }

        }
    };

我在 String data = getData(accept); 上设置了一个断点；而且它永远不会击中它

下面是取自https://gist.github.com/madeye/2297083的代理类

public class ProxySettings {

    private static final String TAG = "GAEProxy.ProxySettings";

    static final int PROXY_CHANGED = 193;

    private static Object getDeclaredField(Object obj, String name)
            throws SecurityException, NoSuchFieldException,
            IllegalArgumentException, IllegalAccessException {
        Field f = obj.getClass().getDeclaredField(name);
        f.setAccessible(true);
        Object out = f.get(obj);
        // System.out.println(obj.getClass().getName() + "." + name + " = "+
        // out);
        return out;
    }

    public static Object getRequestQueue(Context ctx) throws Exception {
        Object ret = null;
        Class networkClass = Class.forName("android.webkit.Network");
        if (networkClass != null) {
            Object networkObj = invokeMethod(networkClass, "getInstance",
                    new Object[] { ctx }, Context.class);
            if (networkObj != null) {
                ret = getDeclaredField(networkObj, "mRequestQueue");
            }
        }
        return ret;
    }

    private static Object invokeMethod(Object object, String methodName,
            Object[] params, Class... types) throws Exception {
        Object out = null;
        Class c = object instanceof Class ? (Class) object : object.getClass();
        if (types != null) {
            Method method = c.getMethod(methodName, types);
            out = method.invoke(object, params);
        } else {
            Method method = c.getMethod(methodName);
            out = method.invoke(object);
        }
        // System.out.println(object.getClass().getName() + "." + methodName +
        // "() = "+ out);
        return out;
    }

    public static void resetProxy(Context ctx) throws Exception {
        Object requestQueueObject = getRequestQueue(ctx);
        if (requestQueueObject != null) {
            setDeclaredField(requestQueueObject, "mProxyHost", null);
        }
    }

    private static void setDeclaredField(Object obj, String name, Object value)
            throws SecurityException, NoSuchFieldException,
            IllegalArgumentException, IllegalAccessException {
        Field f = obj.getClass().getDeclaredField(name);
        f.setAccessible(true);
        f.set(obj, value);
    }

    /**
     * Override WebKit Proxy settings
     * 
     * @param ctx
     *            Android ApplicationContext
     * @param host
     * @param port
     * @return true if Proxy was successfully set
     */
    public static boolean setProxy(Context ctx, String host, int port) {
        boolean ret = false;
        setSystemProperties(host, port);

        try {
            if (Build.VERSION.SDK_INT < 14) {

                Object requestQueueObject = getRequestQueue(ctx);
                if (requestQueueObject != null) {
                    // Create Proxy config object and set it into request Q
                    HttpHost httpHost = new HttpHost(host, port, "http");

                    setDeclaredField(requestQueueObject, "mProxyHost", httpHost);
                    ret = true;
                }

            } else {
                ret = setICSProxy(host, port);
            }
        } catch (Exception e) {
            Log.e(TAG, "error setting up webkit proxying", e);
        }
        return ret;
    }

    private static boolean setICSProxy(String host, int port)
            throws ClassNotFoundException, NoSuchMethodException,
            IllegalArgumentException, InstantiationException,
            IllegalAccessException, InvocationTargetException {
        Class webViewCoreClass = Class.forName("android.webkit.WebViewCore");
        Class proxyPropertiesClass = Class
                .forName("android.net.ProxyProperties");
        if (webViewCoreClass != null && proxyPropertiesClass != null) {
            Method m = webViewCoreClass.getDeclaredMethod("sendStaticMessage",
                    Integer.TYPE, Object.class);
            Constructor c = proxyPropertiesClass.getConstructor(String.class,
                    Integer.TYPE, String.class);
            m.setAccessible(true);
            c.setAccessible(true);
            Object properties = c.newInstance(host, port, null);
            m.invoke(null, PROXY_CHANGED, properties);
            return true;
        }
        return false;

    }

    private static void setSystemProperties(String host, int port) {

        System.setProperty("http.proxyHost", host);
        System.setProperty("http.proxyPort", port + "");

        System.setProperty("https.proxyHost", host);
        System.setProperty("https.proxyPort", port + "");

    }
}

我错过了什么吗？

ServerSocket 在运行 webview 的同一个 android 应用程序中运行，其想法是重定向所有 http 请求以通过我的套接字服务器代理。

谢谢

编辑:我调试了代理代码，它失败并抛出这个异常

07-01 15:44:02.894: E/GAEProxy.ProxySettings(11267): error setting up webkit proxying = java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()

它发生在我调用 setProxy 时。

有什么建议吗？

Answer 1

错误告诉您:无法在尚未调用 Looper.prepare() 的线程内创建处理程序

您需要在实现 Looper 的线程中执行代码。

Can't create handler inside thread that has not called Looper.prepare()

Can't create handler inside thread that has not called Looper.prepare() inside AsyncTask for ProgressDialog

Can't create handler inside thread which has not called Looper.prepare()