1、adb shell
2、qlite3 /data/data/com.android.providers.settings/databases/settings.db
3、INSERT INTO system VALUES(99,'http_proxy', '192.168.0.245:8080');
System.getProperties().setProperty("proxySet", "true");
System.getProperties().setProperty("http.proxyHost", strAddr);
System.getProperties().setProperty("http.proxyPort", strPort);
Authenticator.setDefault(new MyAuthenticator(strUsername, strPasseord));