问题
I'm trying to use .net SOAP web service with ksoap2 lib. Example from http://www.vimeo.com/9633556 shows how to do it correct. Below the code from that example. everything shoud work ok ! but i get force Close error !
here my code :
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class SoapTest2Activity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView TV ;
TV=(TextView)findViewById(R.id.textView1);
TV.setText("Hi");
String SOAP_ACTION = "http://tempuri.org/CelsiusToFahrenheit";
String METHOD_NAME = "CelsiusToFahrenheit";
String NAMESPACE = "http://tempuri.org/";
String URL = "http://www.w3schools.com/webservices/tempconvert.asmx";
System.setProperty("http.keepAlive", "false");
SoapObject Request = new SoapObject(NAMESPACE, METHOD_NAME);
Request.addProperty("Celsius", "32");
SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
soapEnvelope.dotNet = true;
soapEnvelope.setOutputSoapObject(Request);
HttpTransportSE httpTransport = new HttpTransportSE(URL);
try
{
httpTransport.call(SOAP_ACTION, soapEnvelope);
SoapPrimitive resultString = (SoapPrimitive)soapEnvelope.getResponse();
TV.setText(resultString.toString());
}
catch (Exception e) {
e.printStackTrace();
}
}
}
Please HelP meeeeee
回答1:
Your code is correct but only can work in Android 2. If you use v4 ICS/JB you must be use AsyncTask.
package com.example.wscall3;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
public class MainActivity extends Activity {
private String TAG ="Vik";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AsyncCallWS task = new AsyncCallWS();
task.execute();
}
private class AsyncCallWS extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
Log.i(TAG, "doInBackground");
calculate();
return null;
}
@Override
protected void onPostExecute(Void result) {
Log.i(TAG, "onPostExecute");
}
@Override
protected void onPreExecute() {
Log.i(TAG, "onPreExecute");
}
@Override
protected void onProgressUpdate(Void... values) {
Log.i(TAG, "onProgressUpdate");
}
}
public void calculate()
{
String SOAP_ACTION = "http://tempuri.org/CelsiusToFahrenheit";
String METHOD_NAME = "CelsiusToFahrenheit";
String NAMESPACE = "http://tempuri.org/";
String URL = "http://www.w3schools.com/webservices/tempconvert.asmx";
try {
SoapObject Request = new SoapObject(NAMESPACE, METHOD_NAME);
Request.addProperty("Celsius", "32");
SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
soapEnvelope.dotNet = true;
soapEnvelope.setOutputSoapObject(Request);
HttpTransportSE transport= new HttpTransportSE(URL);
transport.call(SOAP_ACTION, soapEnvelope);
SoapPrimitive resultString = (SoapPrimitive)soapEnvelope.getResponse();
Log.i(TAG, "Result Celsius: " + resultString);
}
catch(Exception ex) {
Log.e(TAG, "Error: " + ex.getMessage());
}
SOAP_ACTION = "http://tempuri.org/FahrenheitToCelsius";
METHOD_NAME = "FahrenheitToCelsius";
try {
SoapObject Request = new SoapObject(NAMESPACE, METHOD_NAME);
Request.addProperty("Fahrenheit", "100");
SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
soapEnvelope.dotNet = true;
soapEnvelope.setOutputSoapObject(Request);
HttpTransportSE transport= new HttpTransportSE(URL);
transport.call(SOAP_ACTION, soapEnvelope);
SoapPrimitive resultString = (SoapPrimitive)soapEnvelope.getResponse();
Log.i(TAG, "Result Fahrenheit: " + resultString);
}
catch(Exception ex) {
Log.e(TAG, "Error: " + ex.getMessage());
}
}
}
My AndroidManifest.xml is:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.wscall3"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="16" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.wscall3.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>
</manifest>
回答2:
public String SOAP_ACTION;
public String METHOD_NAME;
public final String WSDL_TARGET_NAMESPACE = "http://tempuri.org/";
public final String SOAP_ADDRESS = "http://www.w3schools.com/webservices/tempconvert.asmx";
public final String WSDL_TARGET_NAMESPACE = "http://tempuri.org/";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
input = (EditText) findViewById(R.id.editText1);
result = (EditText) findViewById(R.id.editText2);
cel= (RadioButton) findViewById(R.id.radioButton1);
fah= (RadioButton) findViewById(R.id.radioButton2);
rGroup = (RadioGroup) findViewById(R.id.rgTemp);
open = (Button) findViewById(R.id.button1);
open.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent openScreen = new Intent("com.loginworks.demo.ANDROIDPLOT");
startActivity(openScreen);
}
});
rGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
public void onCheckedChanged(RadioGroup rGroup, int checkedId) {
String in = input.getText().toString();
if (cel.isChecked()) {
PROPERTY_NAME = "Fahrenheit";
METHOD_NAME = "FahrenheitToCelsius";
SOAP_ACTION = "http://tempuri.org/FahrenheitToCelsius";
}
else {
PROPERTY_NAME = "Celsius";
METHOD_NAME = "CelsiusToFahrenheit";
SOAP_ACTION = "http://tempuri.org/CelsiusToFahrenheit";
}
Convert(in);
}
});
}
public void Convert(String val) {
SoapObject requestddr = new SoapObject(WSDL_TARGET_NAMESPACE, "Vrati");
PropertyInfo pi=new PropertyInfo();
pi.setName(PROPERTY_NAME);
pi.setValue(val);
pi.setType(String.class);
request.addProperty(pi);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
Object response= null;
try {
httpTransport.call(SOAP_ACTION, envelope);
response = envelope.getResponse();
}
catch (Exception exception) {
response=exception;
}
result.setText(response.toString());
http://www.loginworks.com/technical-blogs/258-working-with-soap-web-service-through-android
回答3:
Connecting to the Network from developer.android.com:
Network operations can involve unpredictable delays. To prevent this from causing a poor user experience, always perform network operations on a separate thread from the UI. The AsyncTask class provides one of the simplest ways to fire off a new task from the UI thread.
If you don't perform network operations (like httpTransport.call(SOAP_ACTION, soapEnvelope);) on a seperate thread, you will get Force Close dialog by Android OS.
You can use AsyncTask, Service or IntentService to do this. Writing another class that extends one of these classes for making web service calls will solve your problem.
来源：https://stackoverflow.com/questions/10193061/soap-web-service-with-ksoap2-lib