Ksoap2访问webservie 频繁使用导致手机连接不上服务器了，如何解决？

Question

数据量大约每次20条 每条200个字母
查询3次没问题，到第四次就连接不上了出现以下错误 求助老手
我有个小问题，android连接服务器 这种频繁的传输用json+webservies合适吗？
服务器是万网空间
03-09 23:50:14.778: E/AndroidRuntime(25277): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.enong/com.enong.OrderList}: java.lang.NullPointerException
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2359)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2411)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.app.ActivityThread.access$800(ActivityThread.java:151)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.os.Handler.dispatchMessage(Handler.java:110)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.os.Looper.loop(Looper.java:193)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.app.ActivityThread.main(ActivityThread.java:5315)
03-09 23:50:14.778: E/AndroidRuntime(25277): at java.lang.reflect.Method.invokeNative(Native Method)
03-09 23:50:14.778: E/AndroidRuntime(25277): at java.lang.reflect.Method.invoke(Method.java:515)
03-09 23:50:14.778: E/AndroidRuntime(25277): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
03-09 23:50:14.778: E/AndroidRuntime(25277): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
03-09 23:50:14.778: E/AndroidRuntime(25277): at dalvik.system.NativeStart.main(Native Method)
03-09 23:50:14.778: E/AndroidRuntime(25277): Caused by: java.lang.NullPointerException
03-09 23:50:14.778: E/AndroidRuntime(25277): at com.android.internal.os.LoggingPrintStream.println(LoggingPrintStream.java:298)
03-09 23:50:14.778: E/AndroidRuntime(25277): at com.enong.code.ConSer.ConS(ConSer.java:60)
03-09 23:50:14.778: E/AndroidRuntime(25277): at com.enong.code.Order.SeachAndCount(Order.java:234)
03-09 23:50:14.778: E/AndroidRuntime(25277): at com.enong.OrderList.onCreate(OrderList.java:324)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.app.Activity.performCreate(Activity.java:5343)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
03-09 23:50:14.778: E/AndroidRuntime(25277): at com.qihoo360.mobilesafe.loader.b.callActivityOnCreate(SourceFile:81)
03-09 23:50:14.778: E/AndroidRuntime(25277): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2323)

Answer 1

数据量还不小啊，推荐使用google的protobuf，关于网络方面的如果不是老手写不出稳定的网络代码的话，建议使用一些成熟的框架