跨进程调用异常分析总结

最新推荐文章于 2025-06-15 14:33:21 发布

原创最新推荐文章于 2025-06-15 14:33:21 发布 · 946 阅读

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本文详细探讨了Android中跨进程通信时可能出现的异常情况及其处理方式。具体分析了客户端和服务端在不同异常处理策略下的行为差异，并给出了具体的日志示例。

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http://blog.youkuaiyun.com/huangyabin001/article/details/42914771

12-07 20:01:19.931  7272  7272 E AndroidRuntime: FATAL EXCEPTION: main
12-07 20:01:19.931  7272  7272 E AndroidRuntime: Process: com.miui.whetstone, PID: 7272
12-07 20:01:19.931  7272  7272 E AndroidRuntime: java.lang.SecurityException: killPids only available to the system
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at android.os.Parcel.readException(Parcel.java:1683)
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at android.os.Parcel.readException(Parcel.java:1636)
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at android.app.ActivityManagerProxy.killPids(ActivityManagerNative.java:5140)
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.miui.whetstone.server.IActivityManagerWrapper.killPids()
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.miui.whetstone.wtstrategy.WtProcessStrategy.doTrimMiddle()
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.miui.whetstone.wtstrategy.WtProcessStrategy.dealProcessInBackground()
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.miui.whetstone.wtstrategy.WtProcessStrategy.onHandleBackGroundProcess()
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.miui.whetstone.process.WtProcessController.notifyHandleBackGroundProcess()
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.miui.whetstone.process.WtProcessController.dispatchDealBackgroundProcess()
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.miui.whetstone.process.WtProcessController.-wrap2()
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.miui.whetstone.process.WtProcessController$WtProcessHandler.handleMessage()
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at android.os.Handler.dispatchMessage(Handler.java:102)
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at android.os.Looper.loop(Looper.java:163)
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at android.app.ActivityThread.main(ActivityThread.java:6337)
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at java.lang.reflect.Method.invoke(Native Method)
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:880)
12-07 20:01:19.931  7272  7272 E AndroidRuntime: 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:770)

我们经常会进行跨进程通信，跨进程通信设计两个进进程，现记为client , server端
cient端发生异常：1.没有加catch处理，则异常会直接抛给client端，手机端会弹出XXX已经停止运行
　　　　　　　　　　　　　　　　2.加了catch处理,异常被catch住，手机端不会弹出XXX已经停止运行　　
server端发生异常：1.server端没有catch,则直接抛给client端，
                   1.1 如果clent端也没有catch,则client会弹出XXX已经停止运行
                   1.2 如果clent端catch,则client不会弹出XXX已经停止运行
                 2.server端catch,则不会抛给client端

注：如果是oneway调用，server端发生异常，不会抛到client端。服务端会打出如下log

01-18 15:06:51.070 8622 8641 W Binder : Caught a RuntimeException from the binder stub implementation.
01-18 15:06:51.070 8622 8641 W Binder : java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toString()' on a null object reference
01-18 15:06:51.070 8622 8641 W Binder :    at com.miui.securityspace.service.SecondSpaceService$SpaceBinder.createUser(SecondSpaceService.java:82)
01-18 15:06:51.070 8622 8641 W Binder :    at com.miui.securityspace.service.ISpaceService$Stub.onTransact(ISpaceService.java:48)
01-18 15:06:51.070 8622 8641 W Binder :    at android.os.Binder.execTransact(Binder.java:453)