ANDROID开发之http调试常见错误

在开发与Internet交互的应用中，往往在本机用apache或IIS搭建了一个测试站点，往往通过localhost和127.0.0.1来访问。但将地址丢到android里面，就会冒出下面的错误

11-25 06:07:33.126: WARN/System.err(267): org.apache.http.conn.HttpHostConnectException: Connection to http://127.0.0.1 refused 11-25 06:07:33.136: WARN/System.err(267): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:178) 11-25 06:07:33.136: WARN/System.err(267): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 11-25 06:07:33.136: WARN/System.err(267): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 11-25 06:07:33.136: WARN/System.err(267): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:348) 11-25 06:07:33.136: WARN/System.err(267): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 11-25 06:07:33.136: WARN/System.err(267): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 11-25 06:07:33.136: WARN/System.err(267): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 11-25 06:07:33.147: WARN/System.err(267): at me.atu.findCars.ui.LoginActivity$1.onClick(LoginActivity.java:78) 11-25 06:07:33.147: WARN/System.err(267): at android.view.View.performClick(View.java:2408) 11-25 06:07:33.147: WARN/System.err(267): at android.view.View$PerformClick.run(View.java:8816) 11-25 06:07:33.147: WARN/System.err(267): at android.os.Handler.handleCallback(Handler.java:587) 11-25 06:07:33.147: WARN/System.err(267): at android.os.Handler.dispatchMessage(Handler.java:92) 11-25 06:07:33.147: WARN/System.err(267): at android.os.Looper.loop(Looper.java:123) 11-25 06:07:33.147: WARN/System.err(267): at android.app.ActivityThread.main(ActivityThread.java:4627) 11-25 06:07:33.147: WARN/System.err(267): at java.lang.reflect.Method.invokeNative(Native Method) 11-25 06:07:33.147: WARN/System.err(267): at java.lang.reflect.Method.invoke(Method.java:521) 11-25 06:07:33.147: WARN/System.err(267): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 11-25 06:07:33.147: WARN/System.err(267): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 11-25 06:07:33.147: WARN/System.err(267): at dalvik.system.NativeStart.main(Native Method) 11-25 06:07:33.156: WARN/System.err(267): Caused by: java.net.ConnectException: /127.0.0.1:80 - Connection refused 11-25 06:07:33.156: WARN/System.err(267): at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:254) 11-25 06:07:33.156: WARN/System.err(267): at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:533) 11-25 06:07:33.156: WARN/System.err(267): at java.net.Socket.connect(Socket.java:1055) 11-25 06:07:33.156: WARN/System.err(267): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119) 11-25 06:07:33.156: WARN/System.err(267): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:143) 11-25 06:07:33.167: WARN/System.err(267): ... 18 more

关键是这一行：org.apache.http.conn.HttpHostConnectException: Connection to http://127.0.0.1 refused

大意是连接127.0.0.1被拒绝了。把地址换成了localhost也不行，让我真是一团雾水，找了些资料才搞明白，原来启动的android模拟器吧自己也当成127.0.0.1和localhost

解决办法：用本机的内网地址，如192.168.0.5这样的就可以正常调试了