loginbean.java

利用了Struts的MVC结构

package cn.com.ahead.A6.sessionbean;

import javax.ejb.SessionBean;
import javax.ejb.EJBException;
import java.rmi.RemoteException;
import javax.ejb.SessionContext;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;

public class loginBean implements SessionBean {
  private SessionContext ctx;
  public void ejbActivate() throws javax.ejb.EJBException, java.rmi.RemoteException {
  }
  public void ejbPassivate() throws javax.ejb.EJBException, java.rmi.RemoteException {
  }
  public void ejbRemove() throws javax.ejb.EJBException, java.rmi.RemoteException {
  }
  public void setSessionContext(SessionContext parm1) throws javax.ejb.EJBException, java.rmi.RemoteException {
    this.ctx = parm1;
  }
  public void ejbCreate() throws javax.ejb.EJBException,java.rmi.RemoteException{
  }
  public String getPwd(String userName){
    String pwd=null;
    Object ref=null;
    try {
        Context ctx = new InitialContext();
        try{
          ref = ctx.lookup("cn/com/ahead/A6/entitybean/cmp");
        }catch(NamingException ne){
          System.out.println("jndi exception in sessionbean to find entitybean");
          throw ne;
        }
        cn.com.ahead.A6.entitybean.loginHome entityLoginHome = (cn.com.ahead.A6.entitybean.loginHome) PortableRemoteObject.narrow(ref, cn.com.ahead.A6.entitybean.loginHome.class);
        cn.com.ahead.A6.entitybean.login userRecord = entityLoginHome.findUser(userName);
        if(userRecord!=null){
          pwd=userRecord.getLoginPwd();
          System.out.println("现在在sessionBean中得到传来的值"+pwd);
        }
        return pwd;
      } catch(Exception e) {
          e.printStackTrace();
          return pwd;
      }
  }
}