我试图从Android应用程序调用ASP.NET Webservice（ASMX）但是我在SoapPrimitive响应后得到NullPointerException =（SoapPrimitive）envelope.getResponse（）; [英] I Am Trying To Calling ASP.NET Webservice (ASMX) from an Android Application But I am Getting NullPointerException After SoapPrimitive response = (SoapPrimitive)envelope.getResponse();

查看：75 发布时间：2019/6/14 19:24:24 Java Mobile Android WebService

本文介绍了我试图从Android应用程序调用ASP.NET Webservice（ASMX）但是我在SoapPrimitive响应后得到NullPointerException =（SoapPrimitive）envelope.getResponse（）;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

GetReport.java

package com.example.clientnetpositionreport;

import org.ksoap2。 SoapEnvelope;

import org.ksoap2.serialization.PropertyInfo;

import org.ksoap2.serialization.SoapObject;

import org.ksoap2.serialization .SoapPrimitive;

import org.ksoap2.serialization.SoapSerializationEnvelope;

import org.ksoap2.transport.HttpTransportSE;

import android.app。活动;

导入android.os.Bundle;

导入android.os.Handler;

导入android.util.Log;

import android.widget.TextView;

public class GetReport extends Activity {

private static final String NAMESPACE =http ：//tempuri.org; //com.service.ServiceImpl

private static final String URL =http://commodities.karvy.com/services/NetPositionReport.asmx;

private static final String METHOD_NAME =NetPositionReport;

private static final String SOAP_ACTION =http://tempuri.org/NetPositionReport;

private String webResponse =;

private Handler handler = new Handler（）;

私有线程;

私有TextView textView1;

protected void onCreate（Bundle savedInstanceState）{

super.onCreate（savedInstanceState）;

requestWindowFeature（1）;

setContentView（R.layout.activity_tv）;

textView1 =（TextView）findViewById（R.id.textview1）;

// int val = getIntent（）。getExtras（）。getInt（Title） ;

String title = getIntent（）。getExtras（）。getString（ClientCode）;

//Log.d（Data is，val）; < br $>

System.out.println（数据是+标题）;

startWebAccess（title）;

}

public void startWebAccess（String a）{

final String aa = a;

thread = new Thread（）{

public void run（）{

try {

Log.d（Req value0R，Starting ...）; // log.d用于调试

SoapObject request = new Soa pObject（NAMESPACE，METHOD_NAME）;

//简单对象访问协议

PropertyInfo fromProp = new PropertyInfo（）;

fromProp.setName（ ClientCode）;

fromProp.setValue（aa）;

fromProp.setType（String.class）;

request.addProperty（fromProp） ;

PropertyInfo fromProp2 = new PropertyInfo（）;

fromProp2.setName（String）;

fromProp2 .setValue（Om $ @！＃@ M ^＃R）;

fromProp2.setType（String.class）;

request.addProperty（fromProp2）;

Log.d（req value1，request.toString（））;

System.out.println（ok1） ;

SoapSerializationEnvelope envelope = new SoapSerializationEnvelope（SoapEnvelope.VER11）;

envelope.dotNet = false;

envelope.setOutputSoapObject（request）; < br $>

Log.d（req value2，envelope.toString（））;

HttpTransportSE androidHttpTransport = new HttpTransportSE（URL）;

androidHttpTransport.debug = true;

Log.d（Req value2B，androidHttpTransport.toString（））;

androidHttpTransport.call（SOAP_ACTION，信封）;

System.out.println（ok2）;

Log.d（Req value2C，androidHttpTransport.toString（））;

// Object objectResult =（Object）envelope.getResponse（）;

SoapPrimitive response =（SoapPrimi （参见）envelope.getResponse（）;

// System.out.println（输出：+ response.toString（））;

// Log.d（ req value3，response.toString（））;

System.out.println（ok3）;

//textView1.setText（objectResult.toString（））;

System.out.println（ok4）;

webResponse = response.toString（）;

Log.d（ Req value4，webResponse.toString（））;

System.out.println（ok5）;

}

catch（例外e）{

System.out.println（内部捕获）;

Log.d（Req value4，e。的getMessage（））;

webResponse =连接/互联网问题;

// Toast.makeText（getApplicationContext（），加载问题/服务器关闭，Toast.LENGTH_SHORT）.show（）;

}

handler.post（createUI）;

}

};

thread.start（）;

}

final Runnable createUI = new Runnable（）{

public void run（）{

if（webResponse）！= null）{

textView1.setText（webResponse）;

}

else {

webResponse =目前没有提供数据;

textView1.setText（webResponse）;

}

}

};

}

LogCat。

02-25 09：59：39.710：D / gralloc_goldfish（539）：没有GPU的仿真器检测到仿真。

02-25 10：00：28.019：I / System.out（539）：数据是64396

02-25 10：00：28.060：D / req value0R（539）：开始......

02-25 10：00：28.070：D / Req value1（539）：NetPositionReport {ClientCode = 64396; ！字符串=嗡$ @＃@ M 1＃R等}

02-25 10：00：28.080：I / System.out（539）：ok1

02-25 10：00：28.349：D / Req value2（ 539）：org.ksoap2.serialization.SoapSerializationEnvelope@4108c840

02-25 10：00：28.389：D / Req value2B（539）：org.ksoap2.transport.HttpTransportSE@4108dda0

02-25 10：00：28.509：D / dalvikvm（539）：GC_FOR_ALLOC释放116K，4％免费6976K / 7239K，暂停48ms

02-25 10：00：33.320： I / System.out（539）：ok2

02-25 10：00：33.320：D / Req value2C（539）：org.ksoap2.transport.HttpTransportSE@4108dda0

02-25 10：00：33.330：I / System.out（539）：ok3

02-25 10：00：33.330：I / System.out（539）：ok4

02-25 10：00：33.330：I / System.out（539）：内部捕获

02-25 10：00：33.330：W / dalvikvm（539）： threadid = 11：线程退出，未捕获异常（组= 0x409961f8）

02-25 10：00：33.330：E / AndroidRuntime（539）：致命异常：Thread-72

02-25 10：00：33.330：E / AndroidRuntime（539）：java.lang.NullPointerException：println需要一条消息

02-25 10：00：33.330：E / AndroidRuntime（539）：在android.util.Log.println_native（原生方法）

02-25 10:00 ：33.330：E / AndroidRuntime（539）：在android.util.Log.d（Log.java:138）

02-25 10：00：33.330：E / AndroidRuntime（539）：at com.example.clientnetpositionreport.GetReport $ 2.run（GetReport.java:87）

解决方案

@！＃@ M ^＃R）;

fromProp2.setType（String.class）;

request.addProperty（fromProp2）;

Log.d（req value1，request.toString（））;

System.out.println（ok1） ;

SoapSerializationEnvelope envelope = new SoapSerializationEnvelope（SoapEnvelope.VER11）;

envelope.dotNet = false;

envelope.setOutputSoapObject（request）; < br $>

Log.d（req value2，envelope.toString（））;

HttpTransportSE androidHttpTransport = new HttpTransportSE（URL）;

androidHttpTransport.debug = true;

Log.d（Req value2B，androidHttpTransport.toString（））;

androidHttpTransport.call（SOAP_ACTION，信封）;

System.out.println（ok2）;

Log.d（Req value2C，androidHttpTransport.toString（））;

// Object objectResult =（Object）envelope.getResponse（）;

SoapPrimitive response =（SoapPrimi （参见）envelope.getResponse（）;

// System.out.println（输出：+ response.toString（））;

// Log.d（ req value3，response.toString（））;

System.out.println（ok3）;

//textView1.setText（objectResult.toString（））;

System.out.println（ok4）;

webResponse = response.toString（）;

Log.d（ Req value4，webResponse.toString（））;

System.out.println（ok5）;

}

catch（例外e）{

System.out.println（内部捕获）;

Log.d（Req value4，e。的getMessage（））;

webResponse =连接/互联网问题;

// Toast.makeText（getApplicationContext（），加载问题/服务器关闭，Toast.LENGTH_SHORT）.show（）;

}

handler.post（createUI）;

}

};

thread.start（）;

}

final Runnable createUI = new Runnable（）{

public void run（）{

if（webResponse）！= null）{

textView1.setText（webResponse）;

}

else {

webResponse =目前没有提供数据;

textView1.setText（webResponse）;

}

}

};

}

LogCat。

02-25 09：59：39.710：D / gralloc_goldfish（539）：没有GPU的仿真器检测到仿真。

02-25 10：00：28.019：I / System.out（539）：数据是64396

02-25 10：00：28.060：D / req value0R（539）：开始......

02-25 10：00：28.070：D / Req value1（539）：NetPositionReport {ClientCode = 64396; ！字符串=嗡

@＃@ M 1＃R等}

02-25 10：00：28.080：I / System.out（539）：ok1

02-25 10：00：28.349：D / Req value2（ 539）：org.ksoap2.serialization.SoapSerializationEnvelope@4108c840

02-25 10：00：28.389：D / Req value2B（539）：org.ksoap2.transport.HttpTransportSE@4108dda0

02-25 10：00：28.509：D / dalvikvm（539）：GC_FOR_ALLOC释放116K，4％免费6976K / 7239K，暂停48ms

02-25 10：00：33.320： I / System.out（539）：ok2

02-25 10：00：33.320：D / Req value2C（539）：org.ksoap2.transport.HttpTransportSE@4108dda0

02-25 10：00：33.330：I / System.out（539）：ok3

02-25 10：00：33.330：I / System.out（539）：ok4

02-25 10：00：33.330：I / System.out（539）：内部捕获

02-25 10：00：33.330：W / dalvikvm（539）： threadid = 11：线程退出，未捕获异常（组= 0x409961f8）

02-25 10：00：33.330：E / AndroidRuntime（539）：致命异常：Thread-72

02-25 10：00：33.330：E / AndroidRuntime（539）：java.lang.NullPointerException：println需要一条消息

02-25 10：00：33.330：E / AndroidRuntime（539）：在android.util.Log.println_native（原生方法）

02-25 10:00 ：33.330：E / AndroidRuntime（539）：在android.util.Log.d（Log.java:138）

02-25 10：00：33.330：E / AndroidRuntime（539）：at com.example.clientnetpositionreport.GetReport

2.run（GetReport.java:87）

GetReport.java

package com.example.clientnetpositionreport;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
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.os.Handler;
import android.util.Log;
import android.widget.TextView;

public class GetReport extends Activity{
private static final String NAMESPACE ="http://tempuri.org"; //com.service.ServiceImpl
private static final String URL = "http://commodities.karvy.com/services/NetPositionReport.asmx";
private static final String METHOD_NAME = "NetPositionReport";
private static final String SOAP_ACTION = "http://tempuri.org/NetPositionReport";
private String webResponse = "";
private Handler handler = new Handler();
private Thread thread;

private TextView textView1;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(1);
setContentView(R.layout.activity_tv);
textView1 = (TextView) findViewById(R.id.textview1);

//int val=getIntent().getExtras().getInt("Title");
String title= getIntent().getExtras().getString("ClientCode");
//Log.d("Data is", val);

System.out.println("Data is "+title);

startWebAccess(title);

}
public void startWebAccess(String a){
final String aa=a;
thread = new Thread(){
public void run(){
try{
Log.d("Req value0R", "Starting...");//log.d is used for debug
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
//simple object access protocol
PropertyInfo fromProp =new PropertyInfo();
fromProp.setName("ClientCode");
fromProp.setValue(aa);
fromProp.setType(String.class);
request.addProperty(fromProp);

PropertyInfo fromProp2 =new PropertyInfo();
fromProp2.setName("String");
fromProp2.setValue("Om$@!#@M^#R");
fromProp2.setType(String.class);
request.addProperty(fromProp2);

Log.d("Req value1", request.toString());
System.out.println("ok1");
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = false;
envelope.setOutputSoapObject(request);

Log.d("Req value2", envelope.toString());
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.debug = true;
Log.d("Req value2B", androidHttpTransport.toString());
androidHttpTransport.call(SOAP_ACTION, envelope);
System.out.println("ok2");
Log.d("Req value2C", androidHttpTransport.toString());
// Object objectResult = (Object)envelope.getResponse();
SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
// System.out.println("Output: "+response.toString());
// Log.d("Req value3", response.toString());
System.out.println("ok3");
//textView1.setText(objectResult.toString());
System.out.println("ok4");
webResponse = response.toString();
Log.d("Req value4", webResponse.toString());
System.out.println("ok5");
}

catch(Exception e){
System.out.println("inside catch");
Log.d("Req value4", e.getMessage());
webResponse = "Connection/Internet problem";
// Toast.makeText(getApplicationContext(), "Loading problem/Server down", Toast.LENGTH_SHORT).show();
}

handler.post(createUI);
}
};

thread.start();
}

final Runnable createUI = new Runnable() {

public void run(){
if(webResponse!=null) {

textView1.setText(webResponse);
}
else {
webResponse ="No data provided presently";
textView1.setText(webResponse);
}
}
};

}

LogCat.

02-25 09:59:39.710: D/gralloc_goldfish(539): Emulator without GPU emulation detected.
02-25 10:00:28.019: I/System.out(539): Data is 64396
02-25 10:00:28.060: D/Req value0R(539): Starting...
02-25 10:00:28.070: D/Req value1(539): NetPositionReport{ClientCode=64396; String=Om$@!#@M^#R; }
02-25 10:00:28.080: I/System.out(539): ok1
02-25 10:00:28.349: D/Req value2(539): org.ksoap2.serialization.SoapSerializationEnvelope@4108c840
02-25 10:00:28.389: D/Req value2B(539): org.ksoap2.transport.HttpTransportSE@4108dda0
02-25 10:00:28.509: D/dalvikvm(539): GC_FOR_ALLOC freed 116K, 4% free 6976K/7239K, paused 48ms
02-25 10:00:33.320: I/System.out(539): ok2
02-25 10:00:33.320: D/Req value2C(539): org.ksoap2.transport.HttpTransportSE@4108dda0
02-25 10:00:33.330: I/System.out(539): ok3
02-25 10:00:33.330: I/System.out(539): ok4
02-25 10:00:33.330: I/System.out(539): inside catch
02-25 10:00:33.330: W/dalvikvm(539): threadid=11: thread exiting with uncaught exception (group=0x409961f8)
02-25 10:00:33.330: E/AndroidRuntime(539): FATAL EXCEPTION: Thread-72
02-25 10:00:33.330: E/AndroidRuntime(539): java.lang.NullPointerException: println needs a message
02-25 10:00:33.330: E/AndroidRuntime(539): at android.util.Log.println_native(Native Method)
02-25 10:00:33.330: E/AndroidRuntime(539): at android.util.Log.d(Log.java:138)
02-25 10:00:33.330: E/AndroidRuntime(539): at com.example.clientnetpositionreport.GetReport$2.run(GetReport.java:87)

解决方案

@!#@M^#R");
fromProp2.setType(String.class);
request.addProperty(fromProp2);

Log.d("Req value1", request.toString());
System.out.println("ok1");
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = false;
envelope.setOutputSoapObject(request);

Log.d("Req value2", envelope.toString());
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.debug = true;
Log.d("Req value2B", androidHttpTransport.toString());
androidHttpTransport.call(SOAP_ACTION, envelope);
System.out.println("ok2");
Log.d("Req value2C", androidHttpTransport.toString());
// Object objectResult = (Object)envelope.getResponse();
SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
// System.out.println("Output: "+response.toString());
// Log.d("Req value3", response.toString());
System.out.println("ok3");
//textView1.setText(objectResult.toString());
System.out.println("ok4");
webResponse = response.toString();
Log.d("Req value4", webResponse.toString());
System.out.println("ok5");
}

catch(Exception e){
System.out.println("inside catch");
Log.d("Req value4", e.getMessage());
webResponse = "Connection/Internet problem";
// Toast.makeText(getApplicationContext(), "Loading problem/Server down", Toast.LENGTH_SHORT).show();
}

handler.post(createUI);
}
};

thread.start();
}

final Runnable createUI = new Runnable() {

public void run(){
if(webResponse!=null) {

textView1.setText(webResponse);
}
else {
webResponse ="No data provided presently";
textView1.setText(webResponse);
}
}
};

}

LogCat.

02-25 09:59:39.710: D/gralloc_goldfish(539): Emulator without GPU emulation detected.
02-25 10:00:28.019: I/System.out(539): Data is 64396
02-25 10:00:28.060: D/Req value0R(539): Starting...
02-25 10:00:28.070: D/Req value1(539): NetPositionReport{ClientCode=64396; String=Om

@!#@M^#R; }
02-25 10:00:28.080: I/System.out(539): ok1
02-25 10:00:28.349: D/Req value2(539): org.ksoap2.serialization.SoapSerializationEnvelope@4108c840
02-25 10:00:28.389: D/Req value2B(539): org.ksoap2.transport.HttpTransportSE@4108dda0
02-25 10:00:28.509: D/dalvikvm(539): GC_FOR_ALLOC freed 116K, 4% free 6976K/7239K, paused 48ms
02-25 10:00:33.320: I/System.out(539): ok2
02-25 10:00:33.320: D/Req value2C(539): org.ksoap2.transport.HttpTransportSE@4108dda0
02-25 10:00:33.330: I/System.out(539): ok3
02-25 10:00:33.330: I/System.out(539): ok4
02-25 10:00:33.330: I/System.out(539): inside catch
02-25 10:00:33.330: W/dalvikvm(539): threadid=11: thread exiting with uncaught exception (group=0x409961f8)
02-25 10:00:33.330: E/AndroidRuntime(539): FATAL EXCEPTION: Thread-72
02-25 10:00:33.330: E/AndroidRuntime(539): java.lang.NullPointerException: println needs a message
02-25 10:00:33.330: E/AndroidRuntime(539): at android.util.Log.println_native(Native Method)
02-25 10:00:33.330: E/AndroidRuntime(539): at android.util.Log.d(Log.java:138)
02-25 10:00:33.330: E/AndroidRuntime(539): at com.example.clientnetpositionreport.GetReport

2.run(GetReport.java:87)

这篇关于我试图从Android应用程序调用ASP.NET Webservice（ASMX）但是我在SoapPrimitive响应后得到NullPointerException =（SoapPrimitive）envelope.getResponse（）;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！

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