javah 命令生成JNI头文件

假设工程目录下有bin文件夹，bin存放编译好的class文件;
在bin目录下，

E:\eclipse\workspace\testjni\bin>javah -classpath . -jnicom.gnetis.tang.agent.ICMSAgent

然后在E:\eclipse\workspace\testjni\bin即可找到一个com.gnetis.tang.agent_jni_ICMSAgent.h头文件，生成成功！

 

java 文件

 

public class CMSException extends Exception
{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	public String codeID;
	
	public String msg;
	
	private String message;
	
	public CMSException(){
				
	}
	
	public CMSException(String msg){
		
		String[] strArr = msg.split("=", 2);
		this.message = msg;
		this.codeID = strArr[0];
		this.msg = strArr[1];		
	}		
	
	public String getMsg() {
		return msg;
	}

	public void setMsg(String msg) {
		this.msg = msg;
	}
	
	public String getCodeID() {
		return codeID;
	}

	public void setCodeID(String codeID) {
		this.codeID = codeID;
	}

	public String getMessage() {
		return message;
	}

	public void setMessage(String message) {
		this.message = message;
	}
}

 

package com.gnetis.tang.agent;

package com.gnetis.tang.agent.excep;
import com.gnetis.tang.agent.excep.CMSException;
/**
 * 
 *  JNI 本地调用方式
*/
public class ICMSAgent
{
 static
 {
  try{
   System.out.println("load cmsagent start!!!!!!!");
   System.loadLibrary("cmsagent");
   System.out.println("load cmsagent end!!!!!!!");
  }catch(Exception e){
   e.printStackTrace();
   System.out.println("load cmsagnet lib failure!!!!!!");
  }
 }
 
 public ICMSAgent() {}

 // 初始化
 public native int agentInit();

 // 销毁
 public native int agentDestroy();

 // 向服务器请求关闭某种业务
 public native int stopService(int site, int confID, int serviceType) throws CMSException;
}

public void test()
{
	int confID = 88776655;

	int site = 1;

	// agent初始化
	agentInit();

	int ret;
	try
	{
		ret = stopService(site, confID,0x307);

		if (ret != 0)
		{
			System.out.println("start conference without user");
		}
	}
	catch (Exception e)
	{
		e.printStackTrace();
	}

	// agent销毁
	agentDestroy();
}