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I am devloping an Android application that is connecting to a Mysql database which also makes use of SOAP web services

When I run my application on the Android simulator I see a following messages.The message is [Ljava.lang.String;@44f565fo .

I want to understand why I am getting this message.

Here is my Java web service code:

package com.retailer.ws;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.PreparedStatement;
public class RetailerWS {
  public String customerData(){
  String customerInfo = "";
  try{
    Class.forName("com.mysql.jdbc.Driver");
    Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/retailer","root","chathura");
    //Find customer information where the customer ID is maximum
    PreparedStatement statement
          =  con.prepareStatement("SELECT * FROM customers WHERE C_ID = (SELECT MAX(C_ID) FROM customer)");
    ResultSet result = statement.executeQuery();

    while(result.next()){
      customerInfo = customerInfo
                      + result.getString("name")
                      + "&" + result.getString("C_ID") 
                      + "&"+result.getString("address") 
                      + "&"+result.getString("email");
      // Here "&"s are added to the return string. 
      // This is help to split the string in Android application
    }
  } catch(Exception exc){
    System.out.println(exc.getMessage());
  }
    return customerInfo;
 }
}

Here is the code for the Android application

package com.retailer.client;

import android.app.Activity;
import android.os.Bundle;
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.widget.TextView;

public class RetailerActivity extends Activity {
  private static final String SOAP_ACTION = "http://ws.retailer.com/customerData";
  private static final String METHOD_NAME = "customerData";
  private static final String NAMESPACE = "http://ws.retailer.com/";
  private static final String URL = "http://175.157.234.156:8085/ForBlog/services/RetailerWS?wsdl";
  @Override
  public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.main);
     SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); 
     SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

     envelope.setOutputSoapObject(request);

     HttpTransportSE ht = new HttpTransportSE(URL);
     try {
         ht.call(SOAP_ACTION, envelope);
         SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
         SoapPrimitive s = response;
         String str = s.toString();
         String resultArr[] = str.split("&");//Result string will split & store in an array

         TextView tv = new TextView(this);

         for(int i = 0; i<resultArr.length;i++){
           tv.append(resultArr[i]+"\n\n");
         }
         setContentView(tv);
     } catch (Exception e) {
        e.printStackTrace();
    }
   }
  }

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello" />

</LinearLayout>

The Android manifest file has enabled Internet permission also.

So why do I see [Ljava.lang.String;@44f565fo dis messages?

these is my logcat window:

05-23 14:15:10.371: D/AndroidRuntime(3876): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
05-23 14:15:10.371: D/AndroidRuntime(3876): CheckJNI is ON
05-23 14:15:10.520: D/AndroidRuntime(3876): --- registering native functions ---
05-23 14:15:11.191: D/dalvikvm(179): GC_EXPLICIT freed 133 objects / 6720 bytes in 52ms
05-23 14:15:11.231: D/PackageParser(71): Scanning package: /data/app/vmdl70326.tmp
05-23 14:15:11.241: W/PackageParser(71): Unknown element under <application>: uses-permission at /data/app/vmdl70326.tmp Binary XML file line #21
05-23 14:15:11.341: I/PackageManager(71): Removing non-system package:com.retailer.client
05-23 14:15:11.341: I/ActivityManager(71): Force stopping package com.retailer.client uid=10040
05-23 14:15:11.361: I/Process(71): Sending signal. PID: 3868 SIG: 9
05-23 14:15:11.381: I/WindowManager(71): WIN DEATH: Window{44fbd530 com.retailer.client/com.retailer.client.RetailerActivity paused=false}
05-23 14:15:11.401: I/UsageStats(71): Unexpected resume of pack.GetImage while already resumed in com.retailer.client
05-23 14:15:11.421: W/InputManagerService(71): Got RemoteException sending setActive(false) notification to pid 3868 uid 10040
05-23 14:15:11.810: D/PackageManager(71): Scanning package com.retailer.client
05-23 14:15:11.810: I/PackageManager(71): Package com.retailer.client codePath changed from /data/app/com.retailer.client-2.apk to /data/app/com.retailer.client-1.apk; Retaining data and using new
05-23 14:15:11.810: I/PackageManager(71): /data/app/com.retailer.client-1.apk changed; unpacking
05-23 14:15:11.820: D/installd(35): DexInv: --- BEGIN '/data/app/com.retailer.client-1.apk' ---
05-23 14:15:12.000: D/dalvikvm(3883): DexOpt: 'Lorg/xmlpull/v1/XmlPullParser;' has an earlier definition; blocking out
05-23 14:15:12.000: D/dalvikvm(3883): DexOpt: 'Lorg/kxml2/io/KXmlParser;' has an earlier definition; blocking out
05-23 14:15:12.010: D/dalvikvm(3883): DexOpt: 'Lorg/xmlpull/v1/XmlSerializer;' has an earlier definition; blocking out
05-23 14:15:12.010: D/dalvikvm(3883): DexOpt: 'Lorg/kxml2/io/KXmlSerializer;' has an earlier definition; blocking out
05-23 14:15:12.010: D/dalvikvm(3883): DexOpt: 'Lorg/kxml2/kdom/Node;' has an earlier definition; blocking out
05-23 14:15:12.010: D/dalvikvm(3883): DexOpt: 'Lorg/kxml2/kdom/Document;' has an earlier definition; blocking out
05-23 14:15:12.010: D/dalvikvm(3883): DexOpt: 'Lorg/kxml2/kdom/Element;' has an earlier definition; blocking out
05-23 14:15:12.010: D/dalvikvm(3883): DexOpt: 'Lorg/xmlpull/v1/XmlPullParserException;' has an earlier definition; blocking out
05-23 14:15:12.010: D/dalvikvm(3883): DexOpt: 'Lorg/xmlpull/v1/XmlPullParserFactory;' has an earlier definition; blocking out
05-23 14:15:12.111: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParser;'
05-23 14:15:12.111: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParser;'
05-23 14:15:12.111: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParser;'
05-23 14:15:12.111: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParser;'
05-23 14:15:12.111: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParser;'
05-23 14:15:12.111: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParser;'
05-23 14:15:12.121: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParser;'
05-23 14:15:12.131: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParser;'
05-23 14:15:12.131: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/kxml2/io/KXmlSerializer;'
05-23 14:15:12.141: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/xmlpull/v1/XmlPullParser;': multiple definitions
05-23 14:15:12.141: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/kxml2/io/KXmlParser;': multiple definitions
05-23 14:15:12.141: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/xmlpull/v1/XmlSerializer;': multiple definitions
05-23 14:15:12.141: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/kxml2/io/KXmlSerializer;': multiple definitions
05-23 14:15:12.141: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/kxml2/kdom/Node;': multiple definitions
05-23 14:15:12.141: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/kxml2/kdom/Document;': multiple definitions
05-23 14:15:12.141: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/kxml2/kdom/Element;': multiple definitions
05-23 14:15:12.141: I/dalvikvm(3883): DexOpt: not resolving ambiguous class 'Lorg/xmlpull/v1/XmlPullParserException;'
05-23 14:15:12.161: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/xmlpull/v1/XmlPullParserException;': multiple definitions
05-23 14:15:12.161: D/dalvikvm(3883): DexOpt: not verifying 'Lorg/xmlpull/v1/XmlPullParserFactory;': multiple definitions
05-23 14:15:12.171: D/dalvikvm(3883): DexOpt: load 53ms, verify 150ms, opt 7ms
05-23 14:15:12.181: D/installd(35): DexInv: --- END '/data/app/com.retailer.client-1.apk' (success) ---
05-23 14:15:12.191: W/PackageManager(71): Code path for pkg : com.retailer.client changing from /data/app/com.retailer.client-2.apk to /data/app/com.retailer.client-1.apk
05-23 14:15:12.191: W/PackageManager(71): Resource path for pkg : com.retailer.client changing from /data/app/com.retailer.client-2.apk to /data/app/com.retailer.client-1.apk
05-23 14:15:12.191: D/PackageManager(71):   Activities: com.retailer.client.RetailerActivity
05-23 14:15:12.201: I/ActivityManager(71): Force stopping package com.retailer.client uid=10040
05-23 14:15:12.331: I/installd(35): move /data/dalvik-cache/data@app@com.retailer.client-1.apk@classes.dex -> /data/dalvik-cache/data@app@com.retailer.client-1.apk@classes.dex
05-23 14:15:12.331: D/PackageManager(71): New package installed in /data/app/com.retailer.client-1.apk
05-23 14:15:12.490: I/ActivityManager(71): Force stopping package com.retailer.client uid=10040
05-23 14:15:12.630: D/dalvikvm(71): GC_EXPLICIT freed 7314 objects / 513320 bytes in 113ms
05-23 14:15:12.890: D/dalvikvm(71): GC_EXPLICIT freed 2977 objects / 155072 bytes in 101ms
05-23 14:15:12.890: D/dalvikvm(190): GC_EXPLICIT freed 878 objects / 50848 bytes in 197ms
05-23 14:15:12.950: W/RecognitionManagerService(71): no available voice recognition services found
05-23 14:15:13.081: I/installd(35): unlink /data/dalvik-cache/data@app@com.retailer.client-2.apk@classes.dex
05-23 14:15:13.100: D/AndroidRuntime(3876): Shutting down VM
05-23 14:15:13.100: D/dalvikvm(3876): Debugger has detached; object registry had 1 entries
05-23 14:15:13.131: I/dalvikvm(3876): JNI: AttachCurrentThread (from ???.???)
05-23 14:15:13.131: I/AndroidRuntime(3876): NOTE: attach of thread 'Binder Thread #3' failed
05-23 14:15:13.530: D/AndroidRuntime(3889): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
05-23 14:15:13.530: D/AndroidRuntime(3889): CheckJNI is ON
05-23 14:15:13.670: D/AndroidRuntime(3889): --- registering native functions ---
05-23 14:15:14.271: I/ActivityManager(71): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.retailer.client/.RetailerActivity }
05-23 14:15:14.301: I/ActivityManager(71): Start proc com.retailer.client for activity com.retailer.client/.RetailerActivity: pid=3895 uid=10040 gids={}
05-23 14:15:14.331: D/AndroidRuntime(3889): Shutting down VM
05-23 14:15:14.341: D/dalvikvm(3889): Debugger has detached; object registry had 1 entries
05-23 14:15:14.381: I/dalvikvm(3889): JNI: AttachCurrentThread (from ???.???)
05-23 14:15:14.381: I/AndroidRuntime(3889): NOTE: attach of thread 'Binder Thread #3' failed
05-23 14:15:14.500: D/dalvikvm(33): GC_EXPLICIT freed 259 objects / 10016 bytes in 189ms
05-23 14:15:14.630: D/dalvikvm(33): GC_EXPLICIT freed 17 objects / 712 bytes in 96ms
05-23 14:15:14.840: D/dalvikvm(33): GC_EXPLICIT freed 2 objects / 48 bytes in 214ms
05-23 14:15:15.020: W/System.err(3895): java.net.SocketException: Permission denied
05-23 14:15:15.020: W/System.err(3895):     at org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocketImpl(Native Method)
05-23 14:15:15.030: W/System.err(3895):     at org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocket(OSNetworkSystem.java:186)
05-23 14:15:15.030: W/System.err(3895):     at org.apache.harmony.luni.net.PlainSocketImpl.create(PlainSocketImpl.java:265)
05-23 14:15:15.030: W/System.err(3895):     at java.net.Socket.checkClosedAndCreate(Socket.java:873)
05-23 14:15:15.030: W/System.err(3895):     at java.net.Socket.connect(Socket.java:1020)
05-23 14:15:15.030: W/System.err(3895):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:62)
05-23 14:15:15.030: W/System.err(3895):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java:88)
05-23 14:15:15.030: W/System.err(3895):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHTTPConnection(HttpURLConnectionImpl.java:927)
05-23 14:15:15.030: W/System.err(3895):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:909)
05-23 14:15:15.040: W/System.err(3895):     at org.ksoap2.transport.ServiceConnectionSE.connect(ServiceConnectionSE.java:46)
05-23 14:15:15.040: W/System.err(3895):     at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:68)
05-23 14:15:15.040: W/System.err(3895):     at com.retailer.client.RetailerActivity.onCreate(RetailerActivity.java:31)
05-23 14:15:15.040: W/System.err(3895):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-23 14:15:15.040: W/System.err(3895):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
05-23 14:15:15.040: W/System.err(3895):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
05-23 14:15:15.040: W/System.err(3895):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
05-23 14:15:15.040: W/System.err(3895):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
05-23 14:15:15.040: W/System.err(3895):     at android.os.Handler.dispatchMessage(Handler.java:99)
05-23 14:15:15.040: W/System.err(3895):     at android.os.Looper.loop(Looper.java:123)
05-23 14:15:15.040: W/System.err(3895):     at android.app.ActivityThread.main(ActivityThread.java:4627)
05-23 14:15:15.050: W/System.err(3895):     at java.lang.reflect.Method.invokeNative(Native Method)
05-23 14:15:15.050: W/System.err(3895):     at java.lang.reflect.Method.invoke(Method.java:521)
05-23 14:15:15.050: W/System.err(3895):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
05-23 14:15:15.050: W/System.err(3895):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
05-23 14:15:15.050: W/System.err(3895):     at dalvik.system.NativeStart.main(Native Method)
05-23 14:15:15.241: I/ActivityManager(71): Displayed activity com.retailer.client/.RetailerActivity: 945 ms (total 945 ms)
05-23 14:15:15.421: W/InputManagerService(71): Starting input on non-focused client com.android.internal.view.IInputMethodClient$Stub$Proxy@44eb2660 (uid=10049 pid=3808)
Yauraw Gadav
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Krishna Veni
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  • Hi harikrish, look up how check the Android log files and monitor them when launch you application. Any error messages you see there should help you troubleshoot this issue. If you see no error messages pertain to database or web service connection then you can add log messages to you Android Applciation code to see how your app progresses. http://developer.android.com/resources/faq/commontasks.html#logging – Rob Kielty Jun 07 '12 at 14:10
  • In addition you should temporarily comment out your SOAP code so that you see the @string/hello which I assume you have defined in strings.xml? – Rob Kielty Jun 07 '12 at 14:12
  • it's time to learn about asking specific questions; and perhaps the usefulness of https://gist.github.com/ Review the www.Stackoverflow.com/faq otherwise this question runs the risk of being closed by Stackoverflow moderators. – Rob Kielty Jun 08 '12 at 07:55

2 Answers2

0

The error is here

W/System.err(3895): java.net.SocketException: Permission denied

http://docs.oracle.com/javase/1.4.2/docs/api/java/net/SocketException.html

Reading down through the trace of the call stack 

14:15:15.040: W/System.err(3895): 
at com.retailer.client.RetailerActivity.onCreate(RetailerActivity.java:31

which indicates that there was a permissions problem when executing 

ht.call(SOAP_ACTION, envelope);

SocketException: Permission Denied?

Use another web services testing tool like SoapUi to see if you can establish a connection to that web service from the machine where you are running your emulator.

Community
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Rob Kielty
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0

It can be that you are seeing that value because you are using the method TextView.append().

If you check the documentation for this class, you will see that the string is converted into an Charsequence.class and then you have an array of chars again... So what you are printing is just the value of the array instance. It may work just converting the array to string with the method .toString():

setContentView(tv.toString());
j0k
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Ignacio Mulas
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