Web services 从Servlet调用EJBRemoteBean方法
是否可以从放置在另一个项目中的servlet中对EJBRemoteBean进行分类? 怎么做?我试过这个 第一个项目强> EJBRemoteBean.javaWeb services 从Servlet调用EJBRemoteBean方法,web-services,jakarta-ee,servlets,ejb-3.0,remote-access,Web Services,Jakarta Ee,Servlets,Ejb 3.0,Remote Access,是否可以从放置在另一个项目中的servlet中对EJBRemoteBean进行分类? 怎么做?我试过这个 第一个项目 EJBRemoteBean.java @Stateless public class EJBRemoteBean implements EJBRemote { @Override public int addition( int x, int y ) { return x + y; } } EJBRemote.java @Remote
@Stateless
public class EJBRemoteBean implements EJBRemote {
@Override
public int addition( int x, int y ) {
return x + y;
}
}
EJBRemote.java
@Remote
public interface EJBRemote {
public int addition( int x, int y );
}
第二个项目:
EJBServlet.java
public class EJBServlet extends HttpServlet {
@EJB( mappedName = "com.ejb.session.stateless.EJBRemote" )
private EJBRemote ejbr;
protected void processRequest( HttpServletRequest request, HttpServletResponse response )
throws ServletException, IOException {
response.setContentType( "text/html;charset=UTF-8" );
PrintWriter out = response.getWriter();
out.println( "<html>" );
out.println( "<head>" );
out.println( "<title>Servlet EJBServlet</title>" );
out.println( "</head>" );
out.println( "<body>" );
out.println( "<h1>EJBRemote.addition returned: " + ejbr.addition( 2, 3 ) + "</h1>" );
out.println( "</body>" );
out.println( "</html>" );
}
protected void doGet( HttpServletRequest request, HttpServletResponse response )
throws ServletException, IOException {
processRequest( request, response );
}
protected void doPost( HttpServletRequest request, HttpServletResponse response )
throws ServletException, IOException {
processRequest( request, response );
}
}
public类EJBServlet扩展了HttpServlet{
@EJB(mappedName=“com.EJB.session.stateless.EJBRemote”)
私人EJBRemote ejbr;
受保护的void processRequest(HttpServletRequest请求、HttpServletResponse响应)
抛出ServletException、IOException{
setContentType(“text/html;charset=UTF-8”);
PrintWriter out=response.getWriter();
out.println(“”);
out.println(“”);
println(“Servlet EJBServlet”);
out.println(“”);
out.println(“”);
out.println(“EJBRemote.addition返回:“+ejbr.addition(2,3)+”);
out.println(“”);
out.println(“”);
}
受保护的void doGet(HttpServletRequest请求、HttpServletResponse响应)
抛出ServletException、IOException{
processRequest(请求、响应);
}
受保护的void doPost(HttpServletRequest请求、HttpServletResponse响应)
抛出ServletException、IOException{
processRequest(请求、响应);
}
}
我找不到如何修复这个servlet来调用包含的EJBRemoteBean方法。需要帮忙吗
提前谢谢。我会说“在processRequest方法中插入对ejbr.addition(…)的调用”,但这似乎很明显。你试过了吗?如果是的话,发生了什么?我该怎么办?对不起,我不知道怎么回答这个问题,因为你没有提供足够的信息。