如何能的GetResponse从Web服务使用的Android [英] How Can GetResponse From The web-Service Using Android
本文介绍了如何能的GetResponse从Web服务使用的Android的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
您好我试图读取任何数据从web服务的Android应用
但每次尝试我面对的一个问题。
Hi I tried to Read Any Data From A Web-Service Using Android But Every Time Tried I Face A problem
今天我试着读web服务从3schools网站
Today I Try To Read A Web-Service From 3schools site
使用code
package com.example.lo2i03;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.TextView;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
//import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
public class MainActivity extends Activity {
private static String SOAP_ACTION = "http://tempuri.org/CelsiusToFahrenheit";
private static String NAMESPACE = "http://tempuri.org/";
private static String METHOD_NAME = "CelsiusToFahrenheit";
private static String URL = "http://www.w3schools.com/webservices/tempconvert.asmx?WSDL";
TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = (TextView)findViewById(R.id.txt);
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
request.addProperty("Celsius","32");
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER12);
envelope.setOutputSoapObject(request);
envelope.dotNet = true;
try
{
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.call(SOAP_ACTION, envelope);
SoapObject result = (SoapObject)envelope.getResponse();
tv.setText(result.getProperty(0).toString());
}
catch (Exception e)
{
tv.setText("Error");
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
使用知识，我添加了权限的体现来访问互联网。
With Knowledge that I Added The Permission to Manifest To Access The Internet
清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.lo2i03"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.lo2i03.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
</manifest>
的Android版本：4.2 - 4.2
Android Version : 4.2 - 4.2
11-24 01:28:29.065: E/Trace(13408): error opening trace file: No such file or directory (2)
11-24 01:28:29.195: D/AndroidRuntime(13408): Shutting down VM
11-24 01:28:29.195: W/dalvikvm(13408): threadid=1: thread exiting with uncaught exception (group=0x412862a0)
11-24 01:28:29.195: E/AndroidRuntime(13408): FATAL EXCEPTION: main
11-24 01:28:29.195: E/AndroidRuntime(13408): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.lo2i03/com.example.lo2i03.MainActivity}: android.os.NetworkOnMainThreadException
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.app.ActivityThread.access$600(ActivityThread.java:140)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.os.Handler.dispatchMessage(Handler.java:99)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.os.Looper.loop(Looper.java:137)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.app.ActivityThread.main(ActivityThread.java:4898)
11-24 01:28:29.195: E/AndroidRuntime(13408): at java.lang.reflect.Method.invokeNative(Native Method)
11-24 01:28:29.195: E/AndroidRuntime(13408): at java.lang.reflect.Method.invoke(Method.java:511)
11-24 01:28:29.195: E/AndroidRuntime(13408): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008)
11-24 01:28:29.195: E/AndroidRuntime(13408): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775)
11-24 01:28:29.195: E/AndroidRuntime(13408): at dalvik.system.NativeStart.main(Native Method)
11-24 01:28:29.195: E/AndroidRuntime(13408): Caused by: android.os.NetworkOnMainThreadException
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1118)
11-24 01:28:29.195: E/AndroidRuntime(13408): at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
11-24 01:28:29.195: E/AndroidRuntime(13408): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
11-24 01:28:29.195: E/AndroidRuntime(13408): at java.net.InetAddress.getAllByName(InetAddress.java:214)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:315)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpEngine.connect(HttpEngine.java:310)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:289)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:239)
11-24 01:28:29.195: E/AndroidRuntime(13408): at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80)
11-24 01:28:29.195: E/AndroidRuntime(13408): at org.ksoap2.transport.ServiceConnectionSE.connect(ServiceConnectionSE.java:76)
11-24 01:28:29.195: E/AndroidRuntime(13408): at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:146)
11-24 01:28:29.195: E/AndroidRuntime(13408): at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:95)
11-24 01:28:29.195: E/AndroidRuntime(13408): at com.example.lo2i03.MainActivity.onCreate(MainActivity.java:35)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.app.Activity.performCreate(Activity.java:5191)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
11-24 01:28:29.195: E/AndroidRuntime(13408): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064)
11-24 01:28:29.195: E/AndroidRuntime(13408): ... 11 more
新的logcat（1.0）
NEW LOGCAT (1.0)
11-24 16:28:28.850: E/Trace(25195): error opening trace file: No such file or directory (2)
11-24 16:28:28.995: D/libEGL(25195): loaded /system/lib/egl/libEGL_mali.so
11-24 16:28:28.995: D/libEGL(25195): loaded /system/lib/egl/libGLESv1_CM_mali.so
11-24 16:28:29.000: D/libEGL(25195): loaded /system/lib/egl/libGLESv2_mali.so
11-24 16:28:29.000: D/(25195): Device driver API match
11-24 16:28:29.000: D/(25195): Device driver API version: 10
11-24 16:28:29.000: D/(25195): User space API version: 10
11-24 16:28:29.000: D/(25195): mali: REVISION=Linux-r2p4-02rel0 BUILD_DATE=Wed Sep 12 17:53:53 KST 2012
11-24 16:28:29.030: D/OpenGLRenderer(25195): Enabling debug mode 0
11-24 16:28:31.215: D/dalvikvm(25195): GC_CONCURRENT freed 214K, 10% free 12330K/13575K, paused 13ms+13ms, total 40ms
11-24 16:28:39.615: W/IInputConnectionWrapper(25195): getSelectedText on inactive InputConnection
11-24 16:28:39.615: W/IInputConnectionWrapper(25195): setComposingText on inactive InputConnection
11-24 16:28:39.615: W/IInputConnectionWrapper(25195): getExtractedText on inactive InputConnection
使用知识，我使用（WIFI）接入互联网。
With knowledge That I Use (WiFi) TO Access The Internet .
什么建议？
推荐答案
NetworkOnMainThreadException意味着你正在运行的http请求code UI线程里面。
NetworkOnMainThreadException means that you is running http request code inside a UI thread.
尝试是这样的：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = (TextView)findViewById(R.id.txt);
final SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
request.addProperty("Celsius","32");
final SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER12);
envelope.setOutputSoapObject(request);
envelope.dotNet = true;
new AsyncTask<Void, Void, Boolean>() {
SoapObject obj;
@Override
protected Boolean doInBackground(Void... params) {
//here you can do your background network job
try
{
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.call(SOAP_ACTION, envelope);
obj = (SoapObject)envelope.getResponse();
return true;
}
catch (Exception e)
{
e.printStackTrace();
return false;
}
}
@Override
protected void onPostExecute(Boolean result) {
//here you can do your UI job
if (!result)
tv.setText("Error");
else
tv.setText(obj.getProperty(0).toString());
super.onPostExecute(result);
}
}.execute();
}
这篇关于如何能的GetResponse从Web服务使用的Android的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
