jboss as7 访问ejb通用类

package com.synnex.ejb.util;import java.util.Properties;import javax.naming.Context;import javax.naming.InitialContext;import javax.naming.NamingException;public class EjbUtil {private static Context initialContext;private static final String PKG_INTERFACES = "org.jboss.ejb.client.naming";private static Context getInitialContext() throws NamingException{if(initialContext == null){Properties prop = new Properties();prop.put(Context.URL_PKG_PREFIXES, PKG_INTERFACES);initialContext = new InitialContext(prop);}return initialContext;}public static Object lookup(String jndi) throws Exception{return getInitialContext().lookup(jndi);}private static Object lookup(Class<?> serviceClass, String moduleName, String beanName) throws Exception {        final String appName = "";//ear包的名字，如果没有ear包，那么这个就是空字符串就行        final String distinctName = "";                final String interfaceName = serviceClass.getName();                String jndi = "ejb:" + appName + "/" + moduleName + "/" + distinctName + "/" + beanName + "!" + interfaceName;                System.out.println("JNDI: " + jndi);return getInitialContext().lookup(jndi);    }public static Object lookupRemoteBizService(Class<?> serviceClass, String moduleName) throws Exception{String beanName = serviceClass.getSimpleName().replace("Remote", "");return lookup(serviceClass, moduleName, beanName);}}

调用DEMO

package com.synnex.servlet;import java.io.IOException;import java.io.OutputStream;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.hua.ejb.LoginBeanRemote;import com.synnex.ejb.util.EjbUtil;/** * Servlet implementation class TestRemoteEJB */@WebServlet("/TestRemoteEJB")public class TestRemoteEJB extends HttpServlet {private static final long serialVersionUID = 1L;           /**     * @see HttpServlet#HttpServlet()     */    public TestRemoteEJB() {        super();        // TODO Auto-generated constructor stub    }/** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {this.doPost(request, response);}/** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {response.setHeader("Content-type", "text/html;charset=UTF-8");  //这句话的意思，是告诉servlet用UTF-8转码，而不是用默认的ISO8859  response.setCharacterEncoding("UTF-8"); try {LoginBeanRemote loginBean = (LoginBeanRemote)EjbUtil.lookupRemoteBizService(LoginBeanRemote.class, "MyEJBServer");String str = loginBean.login("ejb", "123456");String str1 = loginBean.login("ejb", "qwerty");request.setCharacterEncoding("utf-8");System.out.println(str);System.out.println(str1);OutputStream ps = response.getOutputStream();          //这句话的意思，使得放入流的数据是utf8格式          ps.write(str.getBytes("UTF-8"));          ps.write("<br>".getBytes("UTF-8"));        ps.write(str1.getBytes("UTF-8"));  //response.getWriter().write(str);//response.getWriter().write("<br>");//response.getWriter().write(str1);response.getWriter().flush();} catch (Exception e) {e.printStackTrace();}}}

以上代码来自网络