java_method.h

C调用Java的一个例子程序

/* ^_^ 
 *
 *		Copyright (c) 2006 Hexin
 *
 *	Description:
 *				java function
 *	Create:
 *		Date			  Time				Author
 *	------------------------------------------------
 *   2006-3-17           15:18:28			XiaoWei
 */

/* ^_^ 
 *	 Location : 
 *	 File     : JAVA_Method.h
 *	 Version  : 1.0.0.0
 *	 Note     : 
 */
#if !defined(__JAVA_Method_h__)
#define __JAVA_Method_h__

 
#include "JAVA_Debug.h"
#include "JAVA_Base.h"
#include "Java_Object.h"
#include "Java_Class.h"
#include "JAVA_VM.H"
#include "JAVA_Config.h"
struct s_JAVA_Method{
	JNI_MethodID	m_MethodID;
	JNI_Object		m_Object;
	JNI_Env*		m_lpEnv;
	JNI_Class		m_Class;
	void setMethod(JNI_Env* _lpEnv,JNI_MethodID _m,JNI_Object _o,JNI_Class _c);
	void clear();
	bool loadMethod(JAVA_Object & _object,const char* name,const char * sig);
	void _setEnv_Mul()
	{
		m_lpEnv = JAVA_VM::getInstance()->getEnv();
	}
};

	
class JAVA_Method_Base
{
public:
	bool	loadMethod(JAVA_Object & _object,const char* name,const char * sig)
	{
		return m_Method.loadMethod(_object,name,sig);
	}
protected:
		s_JAVA_Method  m_Method;
};


template<typename _RT>
class JAVA_Method 
{};

//for load 
#define  loadJavaMethod(m,name,sig)  if(!m.loadMethod(*this,name,sig))\
							{ SHOWMESSAGE("JavaMethod:" ## name ## " " ## sig ## " unload!");return false;}

//Object
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallObjectMethod
#define  JNI_ReturnType		JNI_Object 
#include "JAVA_CallMethod.h"


//Boolean
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallBooleanMethod
#define  JNI_ReturnType		JNI_Boolean
#include "JAVA_CallMethod.h"


//Byte
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallByteMethod
#define  JNI_ReturnType		JNI_Byte
#include "JAVA_CallMethod.h"


//Char
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallCharMethod
#define  JNI_ReturnType		JNI_Char
#include "JAVA_CallMethod.h"


//Short
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallShortMethod
#define  JNI_ReturnType		JNI_Short
#include "JAVA_CallMethod.h"


//Int
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallIntMethod
#define  JNI_ReturnType		JNI_Int
#include "JAVA_CallMethod.h"

//Long
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallLongMethod
#define  JNI_ReturnType		JNI_Long
#include "JAVA_CallMethod.h"



//Float
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallFloatMethod
#define  JNI_ReturnType		JNI_Float
#include "JAVA_CallMethod.h"


//Double
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallDoubleMethod
#define  JNI_ReturnType		JNI_Double
#include "JAVA_CallMethod.h"


//void
#define  ReturnVoid  //only for void 

#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#define  JNI_MethodName		CallVoidMethod
#define  JNI_ReturnType		JNI_Void 
#include "JAVA_CallMethod.h"

#undef  ReturnVoid   //#define  ReturnVoid




//clear
#if defined(JNI_MethodName)
#undef  JNI_MethodName
#endif //#if defined(JNI_MethodName)

#if defined(JNI_ReturnType)
#undef  JNI_ReturnType
#endif //#if defined(JNI_ReturnType)

#endif // !defined(__JAVA_Method_h__)