如何打印在Android的网站的IP地址?我可以运行的InetAddress并在netbean使用System.out.println()打印。下面是我的示例代码。
公共字符串getHostAddress(){
InetAddress类地址= NULL;
尝试 {
ADDR = InetAddress.getByName(www.google.com);
}
赶上(UnknownHostException异常E){
// TODO自动生成的catch块
e.printStackTrace();
}
返回addr.getHostAddress();
}
它总是表现出遗憾的是,你的程序已经停止。 可以知道有没有什么办法让访问网站的IP地址的Android?
05-19 14:22:39.008:I / dalvikvm(1062):主题ID = 3:反应信号3
05-19 14:22:39.049:I / dalvikvm(1062):写的堆栈跟踪到/data/anr/traces.txt
05-19 14:22:39.688:I / dalvikvm(1062):主题ID = 3:反应信号3
05-19 14:22:39.828:I / dalvikvm(1062):写的堆栈跟踪到/data/anr/traces.txt
05-19 14:22:39.929:D / AndroidRuntime(1062):关闭虚拟机
05-19 14:22:39.948:W / dalvikvm(1062):主题ID = 1:螺纹退出与未捕获的异常(组= 0x409c01f8)
05-19 14:22:40.039:E / AndroidRuntime(1062):致命异常:主要
05-19 14:22:40.039:E / AndroidRuntime(1062):java.lang.RuntimeException的:无法启动的活动ComponentInfo {com.android.destinationurl / com.android.destinationurl.DestinationURL}:android.os.NetworkOnMainThreadException
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.app.ActivityThread.access $ 600(ActivityThread.java:123)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1147)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.os.Handler.dispatchMessage(Handler.java:99)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.os.Looper.loop(Looper.java:137)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.app.ActivityThread.main(ActivityThread.java:4424)
05-19 14:22:40.039:E / AndroidRuntime(1062):在java.lang.reflect.Method.invokeNative(本机方法)
05-19 14:22:40.039:E / AndroidRuntime(1062):在java.lang.reflect.Method.invoke(Method.java:511)
05-19 14:22:40.039:E / AndroidRuntime(1062):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:784)
05-19 14:22:40.039:E / AndroidRuntime(1062):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-19 14:22:40.039:E / AndroidRuntime(1062):在dalvik.system.NativeStart.main(本机方法)
05-19 14:22:40.039:E / AndroidRuntime(1062):由:android.os.NetworkOnMainThreadException
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.os.StrictMode $ AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
05-19 14:22:40.039:E / AndroidRuntime(1062):在java.net.InetAddress.lookupHostByName(InetAddress.java:391)
05-19 14:22:40.039:E / AndroidRuntime(1062):在java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
05-19 14:22:40.039:E / AndroidRuntime(1062):在java.net.InetAddress.getByName(InetAddress.java:295)
05-19 14:22:40.039:E / AndroidRuntime(1062):在com.android.destinationurl.DestinationURL.getHostAddress(DestinationURL.java:57)
05-19 14:22:40.039:E / AndroidRuntime(1062):在com.android.destinationurl.DestinationURL.onCreate(DestinationURL.java:40)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.app.Activity.performCreate(Activity.java:4465)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-19 14:22:40.039:E / AndroidRuntime(1062):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
05-19 14:22:40.039:E / AndroidRuntime(1062):11 ...更多
05-19 14:22:40.248:I / dalvikvm(1062):主题ID = 3:反应信号3
05-19 14:22:40.283:I / dalvikvm(1062):写的堆栈跟踪到/data/anr/traces.txt
05-19 14:22:40.608:I / dalvikvm(1062):主题ID = 3:反应信号3
05-19 14:22:40.698:I / dalvikvm(1062):写的堆栈跟踪到/data/anr/traces.txt
05-19 14:22:42.078:I /过程(1062):发送信号。 PID:1062 SIG:9
解决方案
简单地说,
,是你的错上的网址,只要改正。
www.google.com您有4个W公司在你的网址...
和添加使用,权限<使用-权限的Android:名称=android.permission.INTERNET对>
在你的Android应用程序的清单文件。
这是正确的。
地址= InetAddress.getByName(www.google.com);
编辑:使用的AsyncTask
进行网络操作。
字符串NETADDRESS = NULL;
尝试
{
。NETADDRESS =新NetTask()执行(www.google.com)获得();
}
赶上(例外E1)
{
e1.printStackTrace();
}
和这个人是 NetTask 类..
公共类NetTask扩展的AsyncTask<字符串,整数,字符串>
{
@覆盖
保护字符串doInBackground(字符串... PARAMS)
{
InetAddress类地址= NULL;
尝试
{
ADDR = InetAddress.getByName(PARAMS [0]);
}
赶上(UnknownHostException异常E)
{
e.printStackTrace();
}
返回addr.getHostAddress();
}
}
How to print the IP address of a website in android ? I can run inetaddress and print it by using system.out.println() in netbean. Below is my sample coding.
public String getHostAddress () {
InetAddress addr=null;
try {
addr= InetAddress.getByName("www.google.com");
}
catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return addr.getHostAddress();
}
It always show Unfortunately, your program has stopped. May know is there any way to get the IP address of visited website in android ?
05-19 14:22:39.008: I/dalvikvm(1062): threadid=3: reacting to signal 3
05-19 14:22:39.049: I/dalvikvm(1062): Wrote stack traces to '/data/anr/traces.txt'
05-19 14:22:39.688: I/dalvikvm(1062): threadid=3: reacting to signal 3
05-19 14:22:39.828: I/dalvikvm(1062): Wrote stack traces to '/data/anr/traces.txt'
05-19 14:22:39.929: D/AndroidRuntime(1062): Shutting down VM
05-19 14:22:39.948: W/dalvikvm(1062): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
05-19 14:22:40.039: E/AndroidRuntime(1062): FATAL EXCEPTION: main
05-19 14:22:40.039: E/AndroidRuntime(1062): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.destinationurl/com.android.destinationurl.DestinationURL}: android.os.NetworkOnMainThreadException
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.app.ActivityThread.access$600(ActivityThread.java:123)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.os.Handler.dispatchMessage(Handler.java:99)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.os.Looper.loop(Looper.java:137)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.app.ActivityThread.main(ActivityThread.java:4424)
05-19 14:22:40.039: E/AndroidRuntime(1062): at java.lang.reflect.Method.invokeNative(Native Method)
05-19 14:22:40.039: E/AndroidRuntime(1062): at java.lang.reflect.Method.invoke(Method.java:511)
05-19 14:22:40.039: E/AndroidRuntime(1062): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
05-19 14:22:40.039: E/AndroidRuntime(1062): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-19 14:22:40.039: E/AndroidRuntime(1062): at dalvik.system.NativeStart.main(Native Method)
05-19 14:22:40.039: E/AndroidRuntime(1062): Caused by: android.os.NetworkOnMainThreadException
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
05-19 14:22:40.039: E/AndroidRuntime(1062): at java.net.InetAddress.lookupHostByName(InetAddress.java:391)
05-19 14:22:40.039: E/AndroidRuntime(1062): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
05-19 14:22:40.039: E/AndroidRuntime(1062): at java.net.InetAddress.getByName(InetAddress.java:295)
05-19 14:22:40.039: E/AndroidRuntime(1062): at com.android.destinationurl.DestinationURL.getHostAddress(DestinationURL.java:57)
05-19 14:22:40.039: E/AndroidRuntime(1062): at com.android.destinationurl.DestinationURL.onCreate(DestinationURL.java:40)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.app.Activity.performCreate(Activity.java:4465)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-19 14:22:40.039: E/AndroidRuntime(1062): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
05-19 14:22:40.039: E/AndroidRuntime(1062): ... 11 more
05-19 14:22:40.248: I/dalvikvm(1062): threadid=3: reacting to signal 3
05-19 14:22:40.283: I/dalvikvm(1062): Wrote stack traces to '/data/anr/traces.txt'
05-19 14:22:40.608: I/dalvikvm(1062): threadid=3: reacting to signal 3
05-19 14:22:40.698: I/dalvikvm(1062): Wrote stack traces to '/data/anr/traces.txt'
05-19 14:22:42.078: I/Process(1062): Sending signal. PID: 1062 SIG: 9
解决方案
Simply,
Its your mistake on URL, Just correct it..
"www.google.com" you have 4 w's in your URL...
And add Use-Permission <uses-permission android:name="android.permission.INTERNET">
in manifest file of your android application..
This one is correct..
addr = InetAddress.getByName("www.google.com");
EDIT: Use AsyncTask
for Network Operation
String netAddress = null;
try
{
netAddress = new NetTask().execute("www.google.com").get();
}
catch (Exception e1)
{
e1.printStackTrace();
}
And this one is NetTask class..
public class NetTask extends AsyncTask<String, Integer, String>
{
@Override
protected String doInBackground(String... params)
{
InetAddress addr = null;
try
{
addr = InetAddress.getByName(params[0]);
}
catch (UnknownHostException e)
{
e.printStackTrace();
}
return addr.getHostAddress();
}
}
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