尝试从 android 应用程序连接时拒绝连接到 IP答案

【问题标题】：Connection to IP is refused when trying to connect from android application尝试从 android 应用程序连接时拒绝连接到 IP
【发布时间】：2017-02-16 07:46:54
【问题描述】：

我正在尝试将我的 android 应用程序与在同一台 PC 上运行的服务器连接，ip 是 192.168.1.129，tomcat 端口是 8081，遇到以下问题，谁能帮我解决这个问题？

10-07 15:51:45.672 29710-5937/com.net.app W/System.err: org.apache.http.conn.HttpHostConnectException: Connection to http://192.168.1.129:8081 refused
10-07 15:51:45.673 29710-5937/com.net.app W/System.err:     at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:188)
10-07 15:51:45.673 29710-5937/com.net.app W/System.err:     at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:169)
10-07 15:51:45.673 29710-5937/com.net.app W/System.err:     at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:124)
10-07 15:51:45.673 29710-5937/com.net.app W/System.err:     at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:379)
10-07 15:51:45.673 29710-5937/com.net.app W/System.err:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:580)
10-07 15:51:45.673 29710-5937/com.net.app W/System.err:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:503)
10-07 15:51:45.674 29710-5937/com.net.app W/System.err:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:481)
10-07 15:51:45.679 29710-5937/com.net.app W/System.err:     at com.chronicwatch.app.utils.WebRequest.post(WebRequest.java:72)
10-07 15:51:45.679 29710-5937/com.net.app W/System.err:     at com.chronicwatch.app.utils.WebRequest.loadDataFromNetwork(WebRequest.java:54)
10-07 15:51:45.679 29710-5937/com.net.app W/System.err:     at com.octo.android.robospice.request.CachedSpiceRequest.loadDataFromNetwork(CachedSpiceRequest.java:48)
10-07 15:51:45.680 29710-5937/com.net.app  W/System.err:     at com.octo.android.robospice.request.DefaultRequestRunner.processRequest(DefaultRequestRunner.java:150)
10-07 15:51:45.680 29710-5937/com.net.app W/System.err:     at com.octo.android.robospice.request.DefaultRequestRunner$1.run(DefaultRequestRunner.java:217)
10-07 15:51:45.680 29710-5937/com.net.app W/System.err:     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
10-07 15:51:45.680 29710-5937/com.net.app W/System.err:     at java.util.concurrent.FutureTask.run(FutureTask.java:237)
10-07 15:51:45.681 29710-5937/com.net.app W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
10-07 15:51:45.681 29710-5937/com.net.app W/System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
10-07 15:51:45.681 29710-5937/com.net.app W/System.err:     at java.lang.Thread.run(Thread.java:818)
10-07 15:51:45.681 29710-5937/com.net.app W/System.err: Caused by: java.net.ConnectException: failed to connect to /192.168.1.129 (port 8081) after 15000ms: isConnected failed: EHOSTUNREACH (No route to host)
10-07 15:51:45.682 29710-5937/com.net.app W/System.err:     at libcore.io.IoBridge.isConnected(IoBridge.java:238)
10-07 15:51:45.682 29710-5937/com.net.app W/System.err:     at libcore.io.IoBridge.connectErrno(IoBridge.java:171)
10-07 15:51:45.683 29710-5937/com.net.app W/System.err:     at libcore.io.IoBridge.connect(IoBridge.java:122)
10-07 15:51:45.683 29710-5937/com.net.app W/System.err:     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:183)
10-07 15:51:45.683 29710-5937/com.net.app W/System.err:     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:456)
10-07 15:51:45.683 29710-5937/com.net.app W/System.err:     at java.net.Socket.connect(Socket.java:882)
10-07 15:51:45.683 29710-5937/com.net.app W/System.err:     at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:124)
10-07 15:51:45.683 29710-5937/com.net.app W/System.err:     at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:149)
10-07 15:51:45.685 29710-5937/com.net.app W/System.err:     ... 16 more
10-07 15:51:45.685 29710-5937/com.net.app W/System.err: Caused by: android.system.ErrnoException: isConnected failed: EHOSTUNREACH (No route to host)
10-07 15:51:45.686 29710-5937/com.net.app W/System.err:     at libcore.io.IoBridge.isConnected(IoBridge.java:223)
10-07 15:51:45.686 29710-5937/com.net.app W/System.err:     ... 23 more

【问题讨论】：

看看这个stackoverflow.com/questions/12522396/…
请贴一些代码
connect my android app with server which is running in same PC。 Android 应用程序无法在 PC 上运行。您的意思是您的应用在同一台 PC 上的 Android 模拟器中运行？
@greenapps，应用在手机上运行，服务器是PC
好的。但是为什么不知道 Android 设备是在移动连接还是 wifi 上。

标签： android httpconnection

【解决方案1】：

已修复，我PC的公网IP不同，安卓手机的公网IP不同（连接到另一个wi-fi），但两者应该相同

【讨论】：

【解决方案2】：

可能有两个问题。首先防火墙可以阻止访问。关掉它进行测试。第二：也许 Tomcat 只绑定到 localhost/127.0.0.1。检查其设置。

【讨论】：

防火墙已被禁用，如何检查Tomcat是否绑定到localhost/127.0.0.1？
你是安装Tomcat的人。设置？我不知道汤姆猫。对不起。