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  • 大小: 211KB
    文件類型: .zip
    金幣: 2
    下載: 0 次
    發布日期: 2021-05-21
  • 語言: Java
  • 標簽: Dex加載??JNI??APK加固??

資源簡介

http://blog.csdn.net/csdn49532/article/details/50624627 配套代碼，使用JAVA和JNI二種方法動態加載dex，調用dex中的方法，對android APK進行加固，防止APK被破解。

資源截圖

代碼片段和文件信息 

#include?
#include?
#include?
#include?“JNIUtil.h“
#include?
#include?
#include?
#include?
extern?“C“
{
string?copyDexToData（JNIEnv*?env?jobject?asset?string?dexName
		string?dataPath）;
void?Java_com_example_dexload_NativeLoad_loadDex（JNIEnv*?env?jobject?obj
		jstring?dexName?jstring?dataPath?jobject?asset）
{
	JavaVM*?jvm;
	env->GetJavaVM（&jvm）;
	JNIUtil::SetJavaVm（jvm）;
	JNIUtil?util;
	string?strDexName?=?util.Jstring2String（dexName）;
	string?strdataPath?=?util.Jstring2String（dataPath）;
	string?strDexPath?=?copyDexToData（env?asset?strDexName?strdataPath）;
	string?strDestDexPath?=?strdataPath?+?“/cache“;
	LOGI（“%s“strDexPath.c_str（））;
	LOGI（“%s“strDestDexPath.c_str（））;
	jstring?jDexPath?=?util.String2Jstring（strDexPath.c_str（））;
	jstring?jDestDexPath?=?util.String2Jstring（strDestDexPath.c_str（））;
	//查找ClassLoader類并調用靜態方法獲取系統的classloader對象
	jclass?classloaderClass?=?env->FindClass（“java/lang/ClassLoader“）;
	jmethodID?getsysloaderMethod?=?env->GetStaticMethodID（classloaderClass
			“getSystemClassLoader“?“（）Ljava/lang/ClassLoader;“）;
	jobject?loader?=?env->CallStaticobjectMethod（classloaderClass
			getsysloaderMethod）;

	//查找DexClassLoader類并且創建對象生成優化后的dex
	jclass?dexLoaderClass?=?env->FindClass（“dalvik/system/DexClassLoader“）;
	jmethodID?initDexLoaderMethod?=?env->GetMethodID（dexLoaderClass?““
			“（Ljava/lang/String;Ljava/lang/String;“
					“Ljava/lang/String;Ljava/lang/ClassLoader;）V“）;
	jobject?dexLoader?=?env->Newobject（dexLoaderClass?initDexLoaderMethod
			jDexPath?jDestDexPath??NULL?loader）;

	//賦值給java端的DexClassLoader對象
	jclass?native?=?env->GetobjectClass（obj）;
	jfieldID?loadID?=?env->GetFieldID（native?“mDex“
			“Ldalvik/system/DexClassLoader;“）;
	env->SetobjectField（obj?loadID?dexLoader）;
}
void?Java_com_example_dexload_NativeLoad_test（JNIEnv*?env?jobject?obj
		jobject?ac）
{

	//獲取java端的ClassLoader對象
	jclass?native?=?env->GetobjectClass（obj）;
	jfieldID?loadID?=?env->GetFieldID（native?“mDex“
			“Ldalvik/system/DexClassLoader;“）;
	jobject?load?=?env->GetobjectField（obj?loadID）;

	//調用ClassLoader的方法loadClass加載dex中的Test1類
	jclass?classloaderClass?=?env->GetobjectClass（load）;
	jmethodID?loadClassMethod?=?env->GetMethodID（classloaderClass?“loadClass“
			“（Ljava/lang/String;）Ljava/lang/Class;“）;
	JNIUtil?util;
	jstring?Test1ClassName?=?util.String2Jstring（“com.example.dextest.Test1“）;
	jclass?javaClientClass?=?（jclass）?env->CallobjectMethod（load
			loadClassMethod?Test1ClassName）;

	//創建Test1類的對象并且調用其中的test方法
	jmethodID?initFuncTest?=?env->GetMethodID（javaClientClass?““?“（）V“）;?//構造函數ID
	jobject?objTest1?=?env->Newobject（javaClientClass?initFuncTest）;
	jmethodID?Test_method?=?env->GetMethodID（javaClientClass?“test“
			“（Landroid/app/Activity;）V“）;
	if?（Test_method?!=?NULL）
		env->CallVoidMethod（objTest1?Test_method?ac）;
}
st

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????475??2015-12-23?10:31??DexLoad\.classpath
?????文件????????3699??2015-12-31?15:09??DexLoad\.cproject
?????文件????????1467??2015-12-31?15:09??DexLoad\.project
?????文件????????1104??2016-02-01?16:22??DexLoad\AndroidManifest.xml
?????目錄???????????0??2016-01-29?11:27??DexLoad\assets\
?????文件????????1856??2016-01-29?11:27??DexLoad\assets\test.dex
?????文件???????51394??2015-12-23?10:31??DexLoad\ic_launcher-web.png
?????目錄???????????0??2016-02-02?16:55??DexLoad\jni\
?????文件?????????199??2016-02-02?17:03??DexLoad\jni\Android.mk
?????文件??????????75??2016-02-02?16:57??DexLoad\jni\Application.mk
?????文件????????3915??2016-02-02?17:38??DexLoad\jni\DexLoad.cpp
?????文件????????1875??2016-02-02?17:06??DexLoad\jni\JNIUtil.cpp
?????文件?????????610??2016-02-02?17:04??DexLoad\jni\JNIUtil.h
?????文件?????????781??2015-12-23?10:31??DexLoad\proguard-project.txt
?????文件?????????563??2015-12-23?10:31??DexLoad\project.properties
?????目錄???????????0??2015-12-23?10:31??DexLoad\res\
?????目錄???????????0??2015-12-23?10:31??DexLoad\res\drawable-hdpi\
?????文件????????7658??2015-12-23?10:31??DexLoad\res\drawable-hdpi\ic_launcher.png
?????目錄???????????0??2015-12-23?10:31??DexLoad\res\drawable-ldpi\
?????目錄???????????0??2015-12-23?10:31??DexLoad\res\drawable-mdpi\
?????文件????????3777??2015-12-23?10:31??DexLoad\res\drawable-mdpi\ic_launcher.png
?????目錄???????????0??2015-12-23?10:31??DexLoad\res\drawable-xhdpi\
?????文件???????12516??2015-12-23?10:31??DexLoad\res\drawable-xhdpi\ic_launcher.png
?????目錄???????????0??2015-12-23?10:31??DexLoad\res\drawable-xxhdpi\
?????文件???????24777??2015-12-23?10:31??DexLoad\res\drawable-xxhdpi\ic_launcher.png
?????目錄???????????0??2015-12-23?10:32??DexLoad\res\layout\
?????文件?????????335??2015-12-23?10:31??DexLoad\res\layout\activity_main.xml
?????目錄???????????0??2015-12-23?10:31??DexLoad\res\menu\
?????文件?????????369??2015-12-23?10:31??DexLoad\res\menu\main.xml
?????目錄???????????0??2015-12-23?10:31??DexLoad\res\values\
?????文件?????????220??2015-12-23?10:31??DexLoad\res\values\dimens.xml
............此處省略47個文件信息

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