【发布时间】：2013-05-15 12:34:38
【问题描述】：
我是 Android 新手，我正在开发一个连接 php 页面的应用程序。但是，当我调试我的代码时，它给出了 Source not found 上次它给出了 DefaulRequestDirector.class;但是，它也为Abstracthttpclient.class 提供了它。我导入了json 和apache 包。
我在HttpResponse httpResponse = httpClient.execute(httpPost); 行看到Source not found。
if(method == "POST")
{
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost); // Source not found
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
LogCat：
05-15 16:15:46.133: W/dalvikvm(25727): threadid=1: thread exiting with uncaught exception (group=0x415262a0)
05-15 16:15:46.138: E/AndroidRuntime(25727): FATAL EXCEPTION: main
05-15 16:15:46.138: E/AndroidRuntime(25727): android.os.NetworkOnMainThreadException
05-15 16:15:46.138: E/AndroidRuntime(25727): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1118)
05-15 16:15:46.138: E/AndroidRuntime(25727): at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
05-15 16:15:46.138: E/AndroidRuntime(25727): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
05-15 16:15:46.138: E/AndroidRuntime(25727): at java.net.InetAddress.getAllByName(InetAddress.java:214)
05-15 16:15:46.138: E/AndroidRuntime(25727): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
05-15 16:15:46.138: E/AndroidRuntime(25727): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
05-15 16:15:46.138: E/AndroidRuntime(25727): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
05-15 16:15:46.138: E/AndroidRuntime(25727): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
05-15 16:15:46.138: E/AndroidRuntime(25727): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:670)
05-15 16:15:46.138: E/AndroidRuntime(25727): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:509)
05-15 16:15:46.138: E/AndroidRuntime(25727): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
05-15 16:15:46.138: E/AndroidRuntime(25727): at com.example.yoritreader.JSONParser.makeHttpRequest(JSONParser.java:59)
05-15 16:15:46.138: E/AndroidRuntime(25727): at com.example.yoritreader.MainActivity$1.onPreviewFrame(MainActivity.java:246)
05-15 16:15:46.138: E/AndroidRuntime(25727): at android.hardware.Camera$EventHandler.handleMessage(Camera.java:841)
05-15 16:15:46.138: E/AndroidRuntime(25727): at android.os.Handler.dispatchMessage(Handler.java:99)
05-15 16:15:46.138: E/AndroidRuntime(25727): at android.os.Looper.loop(Looper.java:137)
05-15 16:15:46.138: E/AndroidRuntime(25727): at android.app.ActivityThread.main(ActivityThread.java:4921)
05-15 16:15:46.138: E/AndroidRuntime(25727): at java.lang.reflect.Method.invokeNative(Native Method)
05-15 16:15:46.138: E/AndroidRuntime(25727): at java.lang.reflect.Method.invoke(Method.java:511)
05-15 16:15:46.138: E/AndroidRuntime(25727): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1027)
05-15 16:15:46.138: E/AndroidRuntime(25727): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
05-15 16:15:46.138: E/AndroidRuntime(25727): at dalvik.system.NativeStart.main(Native Method)
感谢您的帮助！
【问题讨论】：
-
if(method == "POST") 你不能用这种方式比较字符串。你应该使用 if (method.equalseIgnoreCase("POST"))。你的应用程序崩溃了吗？如果是这样，请发布 logcat
-
是的，但我不认为字符串比较会导致这种情况。在调试模式下，它只给出一些 D 级消息。但是我添加了 LogCat 的运行时 E 级消息。
标签： android json apache httpclient httpresponse