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做网站还是做游戏,有本地服务器怎么做网站,自己做外贸 建一个网站,企业宣传海报设计制作目录一、添加 aidl 文件二、服务端实现三、JNI 层实现四、客户端实现五、服务端和客户端的注册5.1 注册服务端5.2 注册客户端5.3 更新api文件六、Selinux 配置添加硬件访问服务 一、添加 aidl 文件 添加 aidl 文件 frameworks/base/core/java/android/os/IHelloService.aidl…目录一、添加 aidl 文件二、服务端实现三、JNI 层实现四、客户端实现五、服务端和客户端的注册5.1 注册服务端5.2 注册客户端5.3 更新api文件六、Selinux 配置添加硬件访问服务一、添加 aidl 文件添加 aidl 文件frameworks/base/core/java/android/os/IHelloService.aidl:packageandroid.os;/** * hide */interfaceIHelloService{voidopen();voidwrite(Stringstr);Stringread();}二、服务端实现添加frameworks/base/services/core/java/com/android/server/HelloService.java文件packagecom.android.server;importandroid.os.IHelloService;// 硬件服务的服务端实现publicclassHelloServiceextendsIHelloService.Stub{publicnativevoidnatvieOpen();publicnativevoidnatvieWrite(Stringstr);publicnativeStringnativeRead();publicvoidopen()throwsandroid.os.RemoteException{natvieOpen();}publicvoidwrite(Stringstr)throwsandroid.os.RemoteException{natvieWrite(str);}publicStringread()throwsandroid.os.RemoteException{returnnativeRead();}}三、JNI 层实现添加frameworks/base/services/core/jni/com_android_server_HelloService.cppJNI 实现#defineLOG_TAGHelloService#includejni.h#includenativehelper/JNIHelp.h#includeandroid_runtime/AndroidRuntime.h#includeutils/misc.h#includeutils/Log.h#includehardware/hello_hal.h#includestdio.h#includestringnamespace android{statichw_module_t*gHelloModuleNULL;statichello_hal_device_t*gHelloHalDeviceNULL;staticvoidhelloOpen(JNIEnv env,jobject clazz){ALOGD(Hello_test_jni_open);if(gHelloModule!NULL){return;}interrhw_get_module(HELLO_HAL_HARDWARE_MODULE_ID,(hw_module_tconst**)gHelloModule);if(err){ALOGE(Couldnt load %s module (%s),HELLO_HAL_HARDWARE_MODULE_ID,strerror(-err));}else{if(gHelloModule){ALOGD(Hello_test_jni_open get module sucess);hello_hal_methods_open(gHelloModule,gHelloHalDevice);}}if(gHelloHalDevice){gHelloHalDevice-hello_hal_open(gHelloHalDevice);}}staticvoidhelloWrite(JNIEnv*env,jobject clazz,jstring str){if(gHelloHalDevice){ALOGD(Hello_test_jni_write);constchar*c_strNULL;jboolean isCopy;c_strenv-GetStringUTFChars(str,isCopy);//从jstring指针中获取数据ALOGD(Hello_test_jni_write %s,c_str);gHelloHalDevice-hello_hal_write(gHelloHalDevice,c_str);}else{ALOGW(Tried to hello but there is no hello device.);}}staticjstringhelloRead(JNIEnv*env,jobject clazz){if(gHelloHalDevice){ALOGD(Hello_test_jni_read);char*data(char*)malloc(1024);if(dataNULL){ALOGE(helloRead: malloc data failed);returnenv-NewStringUTF(malloc fail);}memset(data,0,1024);intretgHelloHalDevice-hello_hal_read(gHelloHalDevice,data);ALOGD(Hello_test_jni_read result is %s, ret%d,data,ret);if(ret0data[0]!\0){size_tstr_lenstrnlen(data,ret);if(str_len(size_t)ret){if(ret1023){// 留空间data[ret]\0;str_lenret;}else{data[1023]\0;// 截断str_len1023;}}jbyteArray arrayenv-NewByteArray(str_len);env-SetByteArrayRegion(array,0,str_len,(constjbyte*)data);jstring strEncodeenv-NewStringUTF(UTF-8);jclass clsenv-FindClass(java/lang/String);jmethodID ctorenv-GetMethodID(cls,init,([BLjava/lang/String;)V);jstring retStr(jstring)env-NewObject(cls,ctor,array,strEncode);// 释放free(data);env-DeleteLocalRef(array);env-DeleteLocalRef(strEncode);env-DeleteLocalRef(cls);returnretStr;}else{free(data);returnenv-NewStringUTF(no msg);}}returnenv-NewStringUTF(no msg);}// public native void natvieOpen();// public native void natvieWrite(String str);// public native String nativeRead();staticconstJNINativeMethod method_table[]{{natvieOpen,()V,(void*)helloOpen},{natvieWrite,(Ljava/lang/String;)V,(void*)helloWrite},{nativeRead,()Ljava/lang/String;,(void*)helloRead}};intregister_android_server_HelloService(JNIEnv*env){ALOGD(Hello_test_jni_register);returnjniRegisterNativeMethods(env,com/android/server/HelloService,method_table,NELEM(method_table));}};在frameworks/base/services/core/jni/Android.bp中添加xuejievt-PowerEdge-R740:~/A11a133a12$ git diff frameworks/base/services/core/jni/Android.bp diff--git a/frameworks/base/services/core/jni/Android.bp b/frameworks/base/services/core/jni/Android.bp index b01b2fa5c2..6884e332e4100644---a/frameworks/base/services/core/jni/Android.bpb/frameworks/base/services/core/jni/Android.bp -72,672,7 cc_library_static{com_android_server_am_LowMemDetector.cpp,com_android_server_pm_PackageManagerShellCommandDataLoader.cpp,com_android_server_sensor_SensorService.cpp,com_android_server_HelloService.cpp,onload.cpp,:lib_cachedAppOptimizer_native,:lib_networkStatsFactory_native,在frameworks/base/services/core/jni/onload.cpp中添加xuejievt-PowerEdge-R740:~/A11a133a12$ git diff frameworks/base/services/core/jni/onload.cpp diff--git a/frameworks/base/services/core/jni/onload.cpp b/frameworks/base/services/core/jni/onload.cpp index b50472d7b9..7ce091a509100644---a/frameworks/base/services/core/jni/onload.cppb/frameworks/base/services/core/jni/onload.cpp -64,664,7intregister_android_server_FaceService(JNIEnv*env);intregister_android_server_GpuService(JNIEnv*env);intregister_android_server_stats_pull_StatsPullAtomService(JNIEnv*env);intregister_android_server_sensor_SensorService(JavaVM*vm,JNIEnv*env);intregister_android_server_HelloService(JNIEnv*env);};using namespace android;// 在这里注册 JNI 函数// java 层的 native 方法就能调用到对应的 native 层函数了-121,5122,6externCjintJNI_OnLoad(JavaVM*vm,void*/* reserved */)register_android_server_GpuService(env);register_android_server_stats_pull_StatsPullAtomService(env);register_android_server_sensor_SensorService(vm,env);register_android_server_HelloService(env);returnJNI_VERSION_1_4;}四、客户端实现添加一个接口frameworks/base/core/java/android/os/Hello.javapackageandroid.os;importandroid.annotation.Nullable;// 导入空指针注解importandroid.annotation.NonNull;importandroid.annotation.SuppressLint;// 导入Lint抑制注解SuppressLint(RethrowRemoteException)publicabstractclassHello{publicHello(){}publicabstractintopen();publicabstractintwrite(NonNullStringst);NullablepublicabstractStringread();}实现接口frameworks/base/core/java/android/os/HelloManager.javapackageandroid.os;importandroid.annotation.NonNull;// 导入非空注解importandroid.annotation.Nullable;// 导入可空注解importandroid.annotation.SuppressLint;// 导入Lint抑制注解importandroid.content.Context;importandroid.os.ServiceManager;// 补全ServiceManager导入原代码漏了importandroid.os.RemoteException;// 导入RemoteException用于捕获importandroid.os.ServiceSpecificException;// 新增系统推荐的RuntimeException子类importandroid.util.Log;/** * Vibrator implementation that controls the main system vibrator. * * hide */// 抑制RethrowRemoteException核心解决异常声明问题SuppressLint(RethrowRemoteException)publicclassHelloManagerextendsHello{privatestaticfinalStringTAGHelloManager;privatefinalIHelloServicemService;// 获取Hello服务的代理端publicHelloManager(){mServiceIHelloService.Stub.asInterface(ServiceManager.getService(HelloService));}Overridepublicintopen(){if(mService!null){try{mService.open();return0;// 调用成功返回0}catch(RemoteExceptione){Log.e(TAG,open failed: ,e);thrownewServiceSpecificException(1001,open remote service failed: e.getMessage());}}Log.w(TAG,mService is null, open failed);return-1;// 服务为空返回-1}Overridepublicintwrite(NonNullStringstr){if(strnull){Log.e(TAG,write str is null);thrownewIllegalArgumentException(str must not be null);}if(mService!null){try{mService.write(str);return0;// 调用成功返回0}catch(RemoteExceptione){Log.e(TAG,write failed: ,e);thrownewServiceSpecificException(1002,write remote service failed: e.getMessage());}}Log.w(TAG,mService is null, write failed);return-1;// 服务为空返回-1}NullableOverridepublicStringread(){if(mService!null){try{returnmService.read();// 调用成功返回读取结果}catch(RemoteExceptione){Log.e(TAG,read failed: ,e);thrownewServiceSpecificException(1003,read remote service failed: e.getMessage());}}Log.w(TAG,mService is null, read return null);returnnull;// 服务为空返回null}}五、服务端和客户端的注册最最最重要的莫过于这里服务端和客户端的注册了在frameworks/base/core/java/android/content/Context.java中添加xuejievt-PowerEdge-R740:~/A11a133a12$ git diff frameworks/base/core/java/android/content/Context.java diff--git a/frameworks/base/core/java/android/content/Context.java b/frameworks/base/core/java/android/content/Context.java index3dc3d78153..4d0c92299c100644---a/frameworks/base/core/java/android/content/Context.javab/frameworks/base/core/java/android/content/Context.java -3600,63600,7publicabstractclassContext{/** hide */StringDef(suffix{_SERVICE},value{HELLO_SERVICE,POWER_SERVICE,//hide: POWER_STATS_SERVICE,WINDOW_SERVICE,-3961,63962,8publicabstractclassContext{*/publicstaticfinalStringPOWER_SERVICEpower;publicstaticfinalStringHELLO_SERVICEhello;/** * Use with {link #getSystemService(String)} to retrieve a * {link android.os.PowerStatsService} for accessing power stats5.1 注册服务端修改frameworks/base/services/java/com/android/server/SystemServer.java:xuejievt-PowerEdge-R740:~/A11a133a12$ git diff frameworks/base/services/java/com/android/server/SystemServer.java diff--git a/frameworks/base/services/java/com/android/server/SystemServer.java b/frameworks/base/services/java/com/android/server/SystemServer.java index16c9475658..ce7e147950100644---a/frameworks/base/services/java/com/android/server/SystemServer.javab/frameworks/base/services/java/com/android/server/SystemServer.java -1457,61457,11publicfinalclassSystemServerimplementsDumpable{mSystemServiceManager.startService(KeyChainSystemService.class);t.traceEnd();t.traceBegin(StartHelloService);ServiceManager.addService(HelloService,newHelloService());t.traceEnd();t.traceBegin(StartSchedulingPolicyService);ServiceManager.addService(scheduling_policy,newSchedulingPolicyService());t.traceEnd();5.2 注册客户端xuejievt-PowerEdge-R740:~/A11a133a12$ git diff frameworks/base/core/java/android/app/SystemServiceRegistry.java diff--git a/frameworks/base/core/java/android/app/SystemServiceRegistry.java b/frameworks/base/core/java/android/app/SystemServiceRegistry.java index32ea41b2c7..4603e03935100644---a/frameworks/base/core/java/android/app/SystemServiceRegistry.javab/frameworks/base/core/java/android/app/SystemServiceRegistry.java -184,6184,8importandroid.os.image.IDynamicSystemService;importandroid.os.incremental.IIncrementalService;importandroid.os.incremental.IncrementalManager;importandroid.os.storage.StorageManager;importandroid.os.Hello;importandroid.os.HelloManager;importandroid.permission.LegacyPermissionManager;importandroid.permission.PermissionCheckerManager;importandroid.permission.PermissionControllerManager;-290,6292,13publicfinalclassSystemServiceRegistry{returnnewAccountManager(ctx,service);}});registerService(Context.HELLO_SERVICE,Hello.class,newCachedServiceFetcherHello(){OverridepublicHellocreateService(ContextImplctx){returnnewHelloManager();}});registerService(Context.ACTIVITY_SERVICE,ActivityManager.class,newCachedServiceFetcherActivityManager(){Override5.3 更新api文件xuejievt-PowerEdge-R740:~/A11a133a12$ git diff frameworks/base/core/api/current.txt diff--git a/frameworks/base/core/api/current.txt b/frameworks/base/core/api/current.txt index624ded0577..df3a5edaa6100644---a/frameworks/base/core/api/current.txtb/frameworks/base/core/api/current.txt -10644,610644,7 package android.content{field publicstaticfinal String FINGERPRINT_SERVICEfingerprint;field publicstaticfinal String GAME_SERVICEgame;field publicstaticfinal String HARDWARE_PROPERTIES_SERVICEhardware_properties;field publicstaticfinal String HELLO_SERVICEhello;field publicstaticfinal String INPUT_METHOD_SERVICEinput_method;field publicstaticfinal String INPUT_SERVICEinput;field publicstaticfinal String IPSEC_SERVICEipsec;-31288,631289,13 package android.os{field publicstaticfinalfloatUNDEFINED_TEMPERATURE-3.4028235E38f;}public abstract class Hello{ctor publicHello();method public abstractintopen();method Nullable public abstract Stringread();method public abstractintwrite(NonNull String);}public interface IBinder{六、Selinux 配置修改system/sepolicy/service.tetype HelloServiceType,app_api_service,system_server_service,service_manager_type;修改system/sepolicy/service_contextsHelloService u:object_r:HelloServiceType:s0修改system/sepolicy/platform_app.te让系统 App 可以访问我们自定义的 Binder 服务allow platform_app HelloServiceType:service_manager find;修改system/sepolicy/untrusted_app.te让普通 App 可以访问我们自定义的 Binder 服务allow untrusted_app HelloServiceType:service_manager find;最后让 SystemServer 可以访问到 hello 驱动修改system/sepolicy/system_server.teallow system_serverhello_dev_t:chr_file{open read write};