JNative 传递参数bug

 下载JNative网址:http://sourceforge.net/projects/jnative/files/jnative/

 下载JNative版本:JNative_1.4RC3_bin.zip

 bug描述:

            Test.dll中有个方法fnTest有五个参数,方法签名如下:

           void  fnTest(double a,double b,double c,double d,int e);

            

            当用JNative调用时如下:

public void fnTest() throws NativeException, IllegalAccessException {  
        JNative fnTest=null;
try { fnTest= new JNative("Test.dll", "fnTest"); fnTest.setParameter(0, Type.DOUBLE, "111.111"); fnTest.setParameter(1, Type.DOUBLE, "222.222"); 
  fnTest.setParameter(2, Type.DOUBLE, "333.333"); 
  fnTest.setParameter(3, Type.DOUBLE, "444.444"); 
  fnTest.setParameter(4, Type.INT, "5");  fnTest.setRetVal(Type.VOID); fnTest.invoke();

} finally { if (fnTest!= null) { fnTest.dispose(); } } }

         代码运行起来后,到 Test.dll中的fnTest方法,发现参数a=444.444 b=333.333 c=222.222 d=111.111
         没有看源代码,具体原因不知道。

         将代码修改如下:

public void fnTest() throws NativeException, IllegalAccessException {  
        JNative fnTest=null;        try {    
           fnTest= new JNative("Test.dll", "fnTest");  
           fnTest.setParameter(3, Type.DOUBLE, "111.111");  
           fnTest.setParameter(2, Type.DOUBLE, "222.222"); 
fnTest.setParameter(1, Type.DOUBLE, "333.333");
fnTest.setParameter(0, Type.DOUBLE, "444.444");
fnTest.setParameter(4, Type.INT, "5"); fnTest.setRetVal(Type.VOID); fnTest.invoke(); } finally { if (fnTest!= null) { fnTest.dispose(); } } }


调用成功,问题搞定!!!

 

 

 

 

posted @ 2013-12-22 18:50  北漂风  阅读(837)  评论(0编辑  收藏  举报