关于android-webview设置代理访问页面

概述这几天在开发一个项目、关于用webview设置代理后访问页面。于是整理出来。亲测可用packagecom.sh.util;importandroid.annotation.SuppressLint;importandroid.content.Context;importandroid.content.Intent;importandroid.net.Proxy;importandroid.os.Build;impor

这几天在开发一个项目、关于用webvIEw设置代理后访问页面。于是整理出来。亲测可用

package com.sh.util;import androID.annotation.Suppresslint;import androID.content.Context;import androID.content.Intent;import androID.net.Proxy;import androID.os.Build;import androID.os.Parcelable;import androID.text.TextUtils;import androID.util.ArrayMap;import androID.util.Log;import androID.webkit.WebVIEw;import java.io.PrintWriter;import java.io.StringWriter;import java.lang.reflect.Constructor;import java.lang.reflect.FIEld;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;import java.net.Authenticator;import java.net.PasswordAuthentication;import java.util.PropertIEs;public class WebVIEwPxoxyUtils {    private static final String LOG_TAG = "WebvIEwSettingProxy";    /**     * 给webvIEw设置代理     *     * @param webvIEw     * @param host                 ip     * @param port                 端口     * @param applicationClassname 注意这里applicationClassname 传递的是 application 的类名     * @return     */    public static boolean setProxy(WebVIEw webvIEw, String host, int port, String applicationClassname, String username, String pwd) {        // ICS: 4.0        if (Build.VERSION.SDK_INT <= 15) {            return setProxyICS(webvIEw, host, port);        }        // 4.1-4.3 (JB)        else if (Build.VERSION.SDK_INT <= 18) {            return setProxyJB(webvIEw, host, port);        }        // 4.4 (KK) & 5.0 (Lollipop)        else {            return setProxyKKPlus(webvIEw, host, port, applicationClassname,username,pwd);        }    }    /**     * 给webvIEw取消代理     *     * @param webvIEw     * @param applicationClassname  注意这里applicationClassname 传递的是 androID.app.Application     * @return     */    public static boolean revertBackProxy(WebVIEw webvIEw, String applicationClassname) {        if (webvIEw == null || TextUtils.isEmpty(applicationClassname)) {            return true;        }        // 3.2 (HC) or lower        // ICS: 4.0        else if (Build.VERSION.SDK_INT <= 15) {            return revertProxyICS(webvIEw);        }        // 4.1-4.3 (JB)        else if (Build.VERSION.SDK_INT <= 18) {            return revertProxyJB(webvIEw);        }        // 4.4 (KK) & 5.0 (Lollipop)        else {            return revertProxyKKPlus(webvIEw, applicationClassname);        }    }    /**     * Set Proxy for AndroID 3.2 and below.     */    @SuppressWarnings("all")    private static boolean setProxyICS(WebVIEw webvIEw, String host, int port) {        try {            Log.d(LOG_TAG, "Setting proxy with 4.0 API.");            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;        }    }    private static boolean revertProxyICS(WebVIEw webvIEw) {        try {            Log.d(LOG_TAG, "Setting proxy with 4.0 API.");            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);            Object o = null;            updateProxyInstance.invoke(sJavaBrIDge, o);            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) {        Log.d(LOG_TAG, "Setting proxy with 4.1 - 4.3 API.");        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;    }    private static boolean revertProxyJB(WebVIEw webvIEw) {        Log.d(LOG_TAG, "revert proxy with 4.1 - 4.3 API.");        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);            Object o = null;            updateProxyInstance.invoke(sJavaBrIDge, o);        } catch (Exception ex) {            Log.e(LOG_TAG, "Setting proxy with >= 4.1 API Failed with error: " + ex.getMessage());            return false;        }        Log.d(LOG_TAG, "revert 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 setProxyKKPlus(WebVIEw webVIEw, String host, int port, String applicationClassname, final String username, final String pwd) {        Log.d(LOG_TAG, "Setting proxy with >= 4.4 API.");        Context appContext = webVIEw.getContext().getApplicationContext();        System.setProperty("http.proxyHost", host);        System.setProperty("http.proxyPort", port + "");        System.setProperty("https.proxyHost", host);        System.setProperty("https.proxyPort", port + "");        Authenticator.setDefault(                new Authenticator() {                    @OverrIDe                    public PasswordAuthentication getpasswordAuthentication() {                        return new PasswordAuthentication(                                username, pwd.tochararray());                    }                }        );        try {            if (StringUtils.isNotBlank(username) && StringUtils.isNotBlank(pwd)) {                System.setProperty("http.proxyUser", username);                System.setProperty("http.proxyPassword", pwd);                System.setProperty("https.proxyUser", username);                System.setProperty("https.proxyPassword", pwd);            }            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);            ArrayMap receivers = (ArrayMap) receiversFIEld.get(loadedApk);            for (Object receiverMap : receivers.values()) {                for (Object rec : ((ArrayMap) 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);                        final String CLASS_name = "androID.net.ProxyInfo";                        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);                        onReceiveMethod.invoke(rec, appContext, intent);                    }                }            }            Log.d(LOG_TAG, "Setting proxy with >= 4.4 API successful!");            return true;        } catch (ClassNotFoundException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (NoSuchFIEldException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (illegalaccessexception e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (IllegalArgumentException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (NoSuchMethodException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (InvocationTargetException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (InstantiationException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        }        return false;    }    @Suppresslint("NewAPI")    @SuppressWarnings("all")    private static boolean revertProxyKKPlus(WebVIEw webVIEw, String applicationClassname) {        Context appContext = webVIEw.getContext().getApplicationContext();        PropertIEs propertIEs = System.getPropertIEs();        propertIEs.remove("http.proxyHost");        propertIEs.remove("http.proxyPort");        propertIEs.remove("https.proxyHost");        propertIEs.remove("https.proxyPort");        propertIEs.remove("http.proxyUser");        propertIEs.remove("http.proxyPassword");        propertIEs.remove("https.proxyUser");        propertIEs.remove("https.proxyPassword");        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);            ArrayMap receivers = (ArrayMap) receiversFIEld.get(loadedApk);            for (Object receiverMap : receivers.values()) {                for (Object rec : ((ArrayMap) 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);                        final String CLASS_name = "androID.net.ProxyInfo";                        Class cls = Class.forname(CLASS_name);                        Constructor constructor = cls.getConstructor(String.class, Integer.TYPE, String.class);                        constructor.setAccessible(true);                        Object proxyPropertIEs = constructor.newInstance(null, 0, null);                        intent.putExtra("proxy", (Parcelable) proxyPropertIEs);                        onReceiveMethod.invoke(rec, appContext, intent);                    }                }            }            Log.d(LOG_TAG, "revert proxy with >= 4.4 API successful!");            return true;        } catch (ClassNotFoundException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (NoSuchFIEldException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (illegalaccessexception e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (IllegalArgumentException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (NoSuchMethodException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (InvocationTargetException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        } catch (InstantiationException e) {            StringWriter sw = new StringWriter();            e.printstacktrace(new PrintWriter(sw));            String exceptionAsstring = sw.toString();            Log.v(LOG_TAG, e.getMessage());            Log.v(LOG_TAG, exceptionAsstring);        }        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;    }    public static boolean isWifiProxy(Context context) {        final boolean IS_ICS_OR_LATER = Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH;        String proxyAddress;        int proxyPort;        if (IS_ICS_OR_LATER) {            proxyAddress = System.getProperty("http.proxyHost");            String portStr = System.getProperty("http.proxyPort");            proxyPort = Integer.parseInt((portStr != null ? portStr : "-1"));        } else {            proxyAddress = Proxy.getHost(context);            proxyPort = Proxy.getPort(context);        }        return (!TextUtils.isEmpty(proxyAddress)) && (proxyPort != -1);    }}

判断是否使用代理的方法：
 

   public static boolean isWifiProxy(Context context) {        final boolean IS_ICS_OR_LATER = Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH;        String proxyAddress;        int proxyPort;        if (IS_ICS_OR_LATER) {            proxyAddress = System.getProperty("http.proxyHost");            String portStr = System.getProperty("http.proxyPort");            proxyPort = Integer.parseInt((portStr != null ? portStr : "-1"));        } else {            proxyAddress = androID.net.Proxy.getHost(context);            proxyPort = androID.net.Proxy.getPort(context);        }        return (!TextUtils.isEmpty(proxyAddress)) && (proxyPort != -1);    }

但是我发现，如果用webvIEw设置代理，不加代理认证的话，有时候也是打不开页面的，这一块各位如果有更好的解决办法、可以一起讨论学习下

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