贴上JNA—JNI终结者、深入解析JNA—模拟C语言结构体两篇文章的完整源代码
C语言源代码：
头文件
#define MYLIBAPI
extern
"C"
__declspec(
dllexport )
MYLIBAPI
void say(wchar_t* pValue);
struct UserStruct{
long id;
wchar_t*
name;
int age;
};
MYLIBAPI
void sayUser(UserStruct* pUserStruct);
struct CompanyStruct{
long id;
wchar_t*
name;
//
UserStruct* users[100];
UserStruct users[100];
int count;
};
struct CompanyStruct2{
long id;
wchar_t*
name;
UserStruct* users[100];
// UserStruct users[100];
int count;
};
MYLIBAPI
void sayCompany(CompanyStruct* pCompanyStruct);
MYLIBAPI
void sayCompany2(CompanyStruct2* pCompanyStruct);
源文件
#include
"stdafx.h"
#include
<locale.h>
#include
<iostream>
#include
"Out.h"
void
say(wchar_t* pValue){
std::wcout.imbue(std::locale("chs"));
std::wcout<<L"上帝说："<<pValue<<std::endl;
}
void sayUser(UserStruct* pUserStruct){
std::wcout.imbue(std::locale("chs"));
std::wcout<<L"ID:"<<pUserStruct->id<<std::endl;
std::wcout<<L"姓名："<<pUserStruct->name<<std::endl;
std::wcout<<L"年龄："<<pUserStruct->age<<std::endl;
}
void sayCompany(CompanyStruct* pCompanyStruct){
std::wcout.imbue(std::locale("chs"));
std::wcout<<L"ID:"<<pCompanyStruct->id<<std::endl;
std::wcout<<L"公司名称："<<pCompanyStruct->name<<std::endl;
std::wcout<<L"员工总数："<<pCompanyStruct->count<<std::endl;
for(int i=0;i<pCompanyStruct->count;i++){
sayUser(&pCompanyStruct->users[i]);
}
}
void sayCompany2(CompanyStruct2* pCompanyStruct){
std::wcout.imbue(std::locale("chs"));
std::wcout<<L"ID:"<<pCompanyStruct->id<<std::endl;
std::wcout<<L"公司名称："<<pCompanyStruct->name<<std::endl;
std::wcout<<L"员工总数："<<pCompanyStruct->count<<std::endl;
for(int i=0;i<pCompanyStruct->count;i++){
sayUser(pCompanyStruct->users[i]);
}
}
Java源文件：
请先把JNA.jar导入classpath。
package com.google.p.shendl.jna.net;
import com.google.p.shendl.jna.net.TestDll1Service.TestDll1.CompanyStruct;
import com.google.p.shendl.jna.net.TestDll1Service.TestDll1.CompanyStruct2;
import com.google.p.shendl.jna.net.TestDll1Service.TestDll1.UserStruct;
import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.NativeLong;
import com.sun.jna.Structure;
import com.sun.jna.WString;
/**
*
@author
沈东良
Edward
Shen
shendl_s@hotmail.com
*
2008-11-23
下午05:07:14
*TestDll1.dll
*/
public
class TestDll1Service {
public
interface TestDll1
extends Library {
/**
*
当前路径是在项目下，而不是bin输出目录下。
*/
TestDll1 INSTANCE = (TestDll1)Native.loadLibrary("TestDll1",
TestDll1.class);
public
void say(WString value);
/*
* 定义一个类，模拟C语言的结构
* */
public
static
class UserStruct
extends Structure{
public
static
class ByReference
extends UserStruct
implements Structure.ByReference { }
public
static
class ByValue
extends UserStruct
implements Structure.ByValue
{ }
public NativeLong
id;
public WString
name;
public
int
age;
}
public
void sayUser(UserStruct.ByReference struct);
public
static
class CompanyStruct
extends Structure{
public
static
class ByReference
extends CompanyStruct
implements Structure.ByReference { }
public NativeLong
id;
public WString
name;
//public UserStruct[] users;
public UserStruct.ByValue[]
users;
//public UserStruct.ByValue[] users=new UserStruct.ByValue[100];
public
int
count;
}
public
void sayCompany(CompanyStruct.ByReference pCompanyStruct);
public
static
class CompanyStruct2
extends Structure{
public
static
class ByReference
extends CompanyStruct2
implements Structure.ByReference { }
public NativeLong
id;
public WString
name;
public UserStruct.ByReference[]
users=new
UserStruct.ByReference[100];
public
int
count;
}
public
void sayCompany2(CompanyStruct2.ByReference
pCompanyStruct);
}
/**
*
*/
public TestDll1Service() {
//
TODO Auto-generated constructor stub
}
/**
*
@param
args
*/
public