05.Binder系统:第8课第3节_Binder系统_JAVA实现_hello服务_测试

下面的是上小节编写的程序，经过修改并且编译成功能正常运行的代码：

IHelloService.aidl

/** {@hide} */
interface IHelloService
{
	void sayhello();
	int sayhello_to(String name);
}

HelloService.java

import android.util.Slog;

/* 实现Hello服务的函数 */

public class HelloService extends IHelloService.Stub {
    private static final String TAG = "HelloService";
    private int cnt1 = 0;
    private int cnt2 = 0;

    public void sayhello() throws android.os.RemoteException {
        cnt1++;
        Slog.i(TAG, "sayhello : cnt = "+cnt1);
    }
    
    public int sayhello_to(java.lang.String name) throws android.os.RemoteException {
        cnt2++;
        Slog.i(TAG, "sayhello_to "+name+" : cnt = "+cnt2);
        return cnt2;
    }
}

TestServer.java

import android.util.Slog;
import android.os.ServiceManager;

/* 1. addService
 * 2. while(true) { read data, parse data, call function, reply }
 */

public class TestServer {
    private static final String TAG = "TestServer";

    public static void main(String args[])
    {
        /* add Service */
        Slog.i(TAG, "add hello service");
        ServiceManager.addService("hello", new HelloService());

        while (true)
        {
            try {
            	Thread.sleep(100);
          	} catch (Exception e){}
        }
        
    }
}
 

TestClient.java

import android.util.Slog;
import android.os.ServiceManager;
import android.os.IBinder;


/* 1. getService
 * 2. 调用服务的sayhello,sayhello_to
 *
 */

/* test_client  [name] */

public class TestClient {
    private static final String TAG = "TestClient";

    public static void main(String args[])
    {
        if (args.length == 0)
        {
            System.out.println("Usage: need parameter:  [name]");
            return;
        }

        if (args[0].equals("hello"))
        {
            /* 1. getService */
            IBinder binder = ServiceManager.getService("hello");
            if (binder == null)
            {
                System.out.println("can not get hello service");
                Slog.i(TAG, "can not get hello service");
                return;
            }

            IHelloService svr = IHelloService.Stub.asInterface(binder);

            if (args.length == 1)
            {
            		try {
	                svr.sayhello();
	                System.out.println("call sayhello");
	                Slog.i(TAG, "call sayhello");
              	} catch (Exception e) {}
            }
            else
            {
            		try {
	                int cnt = svr.sayhello_to(args[1]);
	                System.out.println("call sayhello_to "+args[1]+" : cnt = "+cnt);
	                Slog.i(TAG, "call sayhello_to "+args[1]+" : cnt = "+cnt);
              	} catch (Exception e) {}
            }
        }
    }
}

Android.mk

# Copyright 2008 The Android Open Source Project
#
LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)
LOCAL_SRC_FILES := HelloService.java IHelloService.java TestServer.java
LOCAL_MODULE := TestServer
include $(BUILD_JAVA_LIBRARY)

include $(CLEAR_VARS)
LOCAL_SRC_FILES := HelloService.java IHelloService.java TestClient.java
LOCAL_MODULE := TestClient
include $(BUILD_JAVA_LIBRARY)

编译测试

把上述文件全部编写完成之后，所有文件都放在同一文件夹中，然后把该文件夹拷贝到frameworks\testing（如果没有，请自行创建）目录下,执行mmm命令，可以看到生产两个文件： out/target/product/qytech_azalea/system/framework/TestServer.jar out/target/product/qytech_azalea/system/framework/TestClient.jar 把这两个文件通过abd下载到开发板上执行： logcat TestServer:* TestClient:* HelloService:* *:S & CLASSPATH=./TestServer.jar app_process ./ TestServer & CLASSPATH=./TestClient.jar app_process ./ TestClient hello CLASSPATH=./TestClient.jar app_process ./ TestClient hello weidongshan