我试图在我的apl中为Webview设置代理。在github上使用this示例，但对我不起作用。 Logs表示已成功设置代理，但没有成功。我已经添加了互联网许可，并尝试了来自许多网站的许多代理。我正在棉花糖设备上进行调试 这是示例代码 我像这样使用
private static final String LOG_TAG = "ProxyUtils";
public static boolean setProxy(WebView webview, String host, int port) {
int sdkInt = Build.VERSION.SDK_INT;
if (sdkInt < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
return setProxyPreICS(webview, host, port);
} else if (sdkInt < Build.VERSION_CODES.JELLY_BEAN) {
return setProxyICS(webview, host, port);
} else if (sdkInt < Build.VERSION_CODES.KITKAT) {
return setProxyJB(webview, host, port);
} else if (sdkInt < Build.VERSION_CODES.LOLLIPOP) {
return setProxyKK(webview, host, port, "android.app.Application");
} else {
return setProxyLollipop(webview.getContext(), host, port);
}
}
public static boolean clearProxy(WebView webView) {
int sdkInt = Build.VERSION.SDK_INT;
if (sdkInt < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
return setProxyPreICS(webView, null,0);
} else if (sdkInt < Build.VERSION_CODES.JELLY_BEAN) {
return setProxyICS(webView, null, 0);
} else if (sdkInt < Build.VERSION_CODES.KITKAT) {
return setProxyJB(webView, null,0);
} else if (sdkInt < Build.VERSION_CODES.LOLLIPOP) {
return setProxyKK(webView, null, 0, "android.app.Application");
} else {
return setProxyLollipop(webView.getContext(), null, 0);
}
}
private static boolean setProxyPreICS(WebView webView, String host, final int port) {
HttpHost proxyServer ;
if (null == host) {
proxyServer = null;
} else {
proxyServer = new HttpHost(host, port);
}
Class networkClass = null;
Object network = null;
try {
networkClass = Class.forName("android.webkit.Network");
if (networkClass == null) {
Log.e(LOG_TAG, "failed to get class for android.webkit.Network");
return false;
}
Method getInstanceMethod = networkClass.getMethod("getInstance", Context.class);
if (getInstanceMethod == null) {
Log.e(LOG_TAG, "failed to get getInstance method");
}
network = getInstanceMethod.invoke(networkClass, new Object[]{webView.getContext()});
} catch (Exception ex) {
Log.e(LOG_TAG, "error getting network: " + ex);
return false;
}
if (network == null) {
Log.e(LOG_TAG, "error getting network: network is null");
return false;
}
Object requestQueue = null;
try {
Field requestQueueField = networkClass
.getDeclaredField("mRequestQueue");
requestQueue = getFieldValueSafely(requestQueueField, network);
} catch (Exception ex) {
Log.e(LOG_TAG, "error getting field value");
return false;
}
if (requestQueue == null) {
Log.e(LOG_TAG, "Request queue is null");
return false;
}
Field proxyHostField = null;
try {
Class requestQueueClass = Class.forName("android.net.http.RequestQueue");
proxyHostField = requestQueueClass
.getDeclaredField("mProxyHost");
} catch (Exception ex) {
Log.e(LOG_TAG, "error getting proxy host field");
return false;
}
boolean temp = proxyHostField.isAccessible();
try {
proxyHostField.setAccessible(true);
proxyHostField.set(requestQueue, proxyServer);
} catch (Exception ex) {
Log.e(LOG_TAG, "error setting proxy host");
} finally {
proxyHostField.setAccessible(temp);
}
Log.d(LOG_TAG, "Setting proxy with <= 3.2 API successful!");
return true;
}
@SuppressWarnings("all")
private static boolean setProxyICS(WebView webview, String host, int port) {
try {
Class jwcjb = Class.forName("android.webkit.JWebCoreJavaBridge");
Class params[] = new Class[1];
params[0] = Class.forName("android.net.ProxyProperties");
Method updateProxyInstance = jwcjb.getDeclaredMethod("updateProxy", params);
Class wv = Class.forName("android.webkit.WebView");
Field mWebViewCoreField = wv.getDeclaredField("mWebViewCore");
Object mWebViewCoreFieldInstance = getFieldValueSafely(mWebViewCoreField, webview);
Class wvc = Class.forName("android.webkit.WebViewCore");
Field mBrowserFrameField = wvc.getDeclaredField("mBrowserFrame");
Object mBrowserFrame = getFieldValueSafely(mBrowserFrameField, mWebViewCoreFieldInstance);
Class bf = Class.forName("android.webkit.BrowserFrame");
Field sJavaBridgeField = bf.getDeclaredField("sJavaBridge");
Object sJavaBridge = getFieldValueSafely(sJavaBridgeField, mBrowserFrame);
Class ppclass = Class.forName("android.net.ProxyProperties");
Class pparams[] = new Class[3];
pparams[0] = String.class;
pparams[1] = int.class;
pparams[2] = String.class;
Constructor ppcont = ppclass.getConstructor(pparams);
updateProxyInstance.invoke(sJavaBridge, ppcont.newInstance(host, port, null));
Log.d(LOG_TAG, "Setting proxy with 4.0 API successful!");
return true;
} catch (Exception ex) {
Log.e(LOG_TAG, "failed to set HTTP proxy: " + ex);
return false;
}
}
/**
* Set Proxy for Android 4.1 - 4.3.
*/
@SuppressWarnings("all")
private static boolean setProxyJB(WebView webview, String host, int port) {
try {
Class wvcClass = Class.forName("android.webkit.WebViewClassic");
Class wvParams[] = new Class[1];
wvParams[0] = Class.forName("android.webkit.WebView");
Method fromWebView = wvcClass.getDeclaredMethod("fromWebView", wvParams);
Object webViewClassic = fromWebView.invoke(null, webview);
Class wv = Class.forName("android.webkit.WebViewClassic");
Field mWebViewCoreField = wv.getDeclaredField("mWebViewCore");
Object mWebViewCoreFieldInstance = getFieldValueSafely(mWebViewCoreField, webViewClassic);
Class wvc = Class.forName("android.webkit.WebViewCore");
Field mBrowserFrameField = wvc.getDeclaredField("mBrowserFrame");
Object mBrowserFrame = getFieldValueSafely(mBrowserFrameField, mWebViewCoreFieldInstance);
Class bf = Class.forName("android.webkit.BrowserFrame");
Field sJavaBridgeField = bf.getDeclaredField("sJavaBridge");
Object sJavaBridge = getFieldValueSafely(sJavaBridgeField, mBrowserFrame);
Class ppclass = Class.forName("android.net.ProxyProperties");
Class pparams[] = new Class[3];
pparams[0] = String.class;
pparams[1] = int.class;
pparams[2] = String.class;
Constructor ppcont = ppclass.getConstructor(pparams);
Class jwcjb = Class.forName("android.webkit.JWebCoreJavaBridge");
Class params[] = new Class[1];
params[0] = Class.forName("android.net.ProxyProperties");
Method updateProxyInstance = jwcjb.getDeclaredMethod("updateProxy", params);
updateProxyInstance.invoke(sJavaBridge, ppcont.newInstance(host, port, null));
} catch (Exception ex) {
Log.e(LOG_TAG, "Setting proxy with >= 4.1 API failed with error: " + ex.getMessage());
return false;
}
Log.d(LOG_TAG, "Setting proxy with 4.1 - 4.3 API successful!");
return true;
}
// from https://stackoverflow.com/questions/19979578/android-webview-set-proxy-programatically-kitkat
@SuppressLint("NewApi")
@SuppressWarnings("all")
private static boolean setProxyKK(WebView webView, String host, int port, String applicationClassName) {
Context appContext = webView.getContext().getApplicationContext();
if (null == host) {
System.clearProperty("http.proxyHost");
System.clearProperty("http.proxyPort");
System.clearProperty("https.proxyHost");
System.clearProperty("https.proxyPort");
} else {
System.setProperty("http.proxyHost", host);
System.setProperty("http.proxyPort", port + "");
System.setProperty("https.proxyHost", host);
System.setProperty("https.proxyPort", port + "");
}
try {
Class applictionCls = Class.forName(applicationClassName);
Field loadedApkField = applictionCls.getField("mLoadedApk");
loadedApkField.setAccessible(true);
Object loadedApk = loadedApkField.get(appContext);
Class loadedApkCls = Class.forName("android.app.LoadedApk");
Field receiversField = loadedApkCls.getDeclaredField("mReceivers");
receiversField.setAccessible(true);
Map receivers = (Map) receiversField.get(loadedApk);
for (Object receiverMap : receivers.values()) {
for (Object rec : ((Map) receiverMap).keySet()) {
Class clazz = rec.getClass();
if (clazz.getName().contains("ProxyChangeListener")) {
Method onReceiveMethod = clazz.getDeclaredMethod("onReceive", Context.class, Intent.class);
Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
/*********** optional, may be need in future *************/
final String CLASS_NAME = "android.net.ProxyProperties";
Class cls = Class.forName(CLASS_NAME);
Constructor constructor = cls.getConstructor(String.class, Integer.TYPE, String.class);
constructor.setAccessible(true);
Object proxyProperties = constructor.newInstance(host, port, null);
intent.putExtra("proxy", (Parcelable) proxyProperties);
/*********** optional, may be need in future *************/
onReceiveMethod.invoke(rec, appContext, intent);
}
}
}
Log.d(LOG_TAG, "Setting proxy with >= 4.4 API successful!");
return true;
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
}
return false;
}
private static boolean setProxyLollipop(final Context context, String host, int port) {
Log.i(LOG_TAG, "setProxyLollipop");
if (null == host) {
System.clearProperty("http.proxyHost");
System.clearProperty("http.proxyPort");
} else {
System.setProperty("http.proxyHost", host);
System.setProperty("http.proxyPort", port + "");
}
try {
Context appContext = context.getApplicationContext();
Class applicationClass = Class.forName("android.app.Application");
Field mLoadedApkField = applicationClass.getDeclaredField("mLoadedApk");
mLoadedApkField.setAccessible(true);
Object mloadedApk = mLoadedApkField.get(appContext);
Class loadedApkClass = Class.forName("android.app.LoadedApk");
Field mReceiversField = loadedApkClass.getDeclaredField("mReceivers");
mReceiversField.setAccessible(true);
Map receivers = (Map) mReceiversField.get(mloadedApk);
for (Object receiverMap : receivers.values()) {
for (Object receiver : ((Map) receiverMap).keySet()) {
Class clazz = receiver.getClass();
if (clazz.getName().contains("ProxyChangeListener")) {
Method onReceiveMethod = clazz.getDeclaredMethod("onReceive", Context.class, Intent.class);
Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
onReceiveMethod.invoke(receiver, appContext, intent);
}
}
}
Log.i(LOG_TAG, "Lollipop successfully");
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
private static Object getFieldValueSafely(Field field, Object classInstance) throws IllegalArgumentException, IllegalAccessException {
boolean oldAccessibleValue = field.isAccessible();
field.setAccessible(true);
Object result = field.get(classInstance);
field.setAccessible(oldAccessibleValue);
return result;
}
}
课程 公共类ProxyUtils {
component.vue