servlet如何调用native的dll

[hush2001]

----
在命令行下用Main调用dll是成功的，但在Servlet(JSP)中调用始终出错
服务器 Tomcat 4.0.1
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1.TestNative.java

package native
public class TestNative {

public static native int add( int a,int b );//dll里的方法

static
{
System.loadLibrary( "TestNativeImpl" );//装载TestNativeImpl

}

}
2.servlet

import native.*;
public class TestNativeServlet extends BaseServlet implements SingleThreadModel
{
TestNative obj=new TestNative();
public void doService(HttpServletRequest request, HttpServletResponse response)
throws ServletException,IOException
{
try
{
int a=obj.add(12,14);
System.out.println(""+a);

}

运行的时候报了如下的错误,请指教

Root cause of ServletException.
java.lang.UnsatisfiedLinkError: add
at native.add(Native Method)

[liusoft]

把dll拷贝到{windows}\system32目录

http://www.javayou.com

[djpsunday]

to: liusoft(凤梨罐头)
你的这个网站也不错的噢，呵呵，我看了一个XML工具包文档，感到有点行的！！！

[hush2001]

DLL已复制到系统目录下，而且Tomcat已装载DLL，因为启动时无法删除该DLL

[hush2001]

也测试过对系统DLL （USER32.DLL)的调用，结果命令行一切正常，servlet报同样错误

[hush2001]

问题已解决
http://community.csdn.net/Expert/topic/3240/3240988.xml?temp=.7975122
感谢 quiet (大胃)