If I use "JSP - Java - JNI" ??

Question

When the Java -> JNI -> C is writen and tested OK.
How can I use JSP to import the Class into JSP page???
I tried. But failure.
Have someone show a sample?? help~ Q_Q

Answer 1

Thanks you again... ^_^ to help
All My step and files are shown below:
--[1 step]--------[ JSP file ]--------------------------
<jsp:useBean id="myBean" scope="page" class="Counter"/>
<jsp:getProperty name="myBean" property="count"/>
--[2 step]---------[ write JavaBean ]-----------------
public class Counter{
public Counter(){}
public native String printt(); // It's Native entry
public static void main(String[] args){ // This just for Java in DOS runable.
new Counter().printt();
public String getCount(){
return(new Counter().printt());
@@@@@@@@@@@@@@@@ <= the server will call getCount() method, which the DLL's create the printt() method.it may cause the 1st errors because can't find printt().I guess.
public void setCount(int newCount){}
static{
System.loadLibrary("HelloWorld"); //LOAD the DLL's from C create
---[3 step]------ [ Create Counter.h ] -- CMD:[ javah - jni Counter ]---------
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class Counter */
#ifndef IncludedCounter
#define IncludedCounter
#ifdef __cplusplus
extern "C" {
#endif
* Class: Counter
* Method: printt
* Signature: ()Ljava/lang/String;
JNIEXPORT jstring JNICALL Java_Counter_printt
(JNIEnv *, jobject);
#ifdef __cplusplus
#endif
#endif
----[4 step]--- [Write HelloWorld.c ]-------------
#include <jni.h>
#include <stdio.h>
#include "Counter.h"
JNIEXPORT jstring JNICALL
Java_Counter_printt(JNIEnv *env,jobject this){
printf("Hello World!\n hihihi success!");
return;
---[5 step]-- [use VC++ 5 to create the DLL from HelloWorld.c ]
---[6 step] ----- The result that Server says -------
500 Internal Server Error
java.lang.NoClassDefFoundError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:195)
...