struts+Hibernate设计用户登陆代码

By kevinwu on January 25, 2007 10:34 PM | No Comments | No TrackBacks

Jsp代码：
 
Login:
 
<%@ page language="java" contentType="text/html;charset=gb2312"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
 
<html>
    <head>
    <html:base/>
    <html:errors/>
       <title>JSP for loginForm form</title>
    </head>
    <body>
    <html:base/>
    <html:errors/>
       <html:form action="/login">
           uname &nbsp: <html:text property="uname" size="10"/><html:errors property="uname"/><br/>
           passwd : <html:password property="passwd" size="10"/><html:errors property="passwd"/><br/>
          
           <html:submit/><html:reset/>
           ${err}
       </html:form>
       <html:link page="/register.do">注册新用户</html:link>
    </body>
</html>
 
 
Register:
 
<%@ page language="java" contentType="text/html;charset=gb2312"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
 
<html>
 
    <head>
   
    <html:base/>
    <html:errors/>
   
       <title>JSP for registerForm form</title>
    </head>
    <body>
       <html:form action="/register">
           passwd : <html:password property="passwd"/><html:errors property="passwd"/><br/>
           uname : <html:text property="uname"/><html:errors property="uname"/><br/>
          
           <html:submit value="确定"/><html:cancel value="取消"/>
       <html:link page="/login.jsp">回到首页</html:link>
       </html:form>
    </body>
</html>
Success:
 
<%@ page language="java" import="java.util.*"contentType="text/html;charset=gb2312"%>
 
 
<html>
  <head>
   
   
    <title>My JSP 'success.jsp' starting page</title>
   
  
  </head>
  <body>
    success login!welcome to this jsp!!${user.uname}
</html>
 
loginAction:
 
package com.vo.action;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
 
import com.dao.userMgrDAO;
import com.vo.UserInfo;
 
import com.vo.form.LoginForm;
 
 
public class LoginAction extends Action {
 
       public ActionForward execute(
              ActionMapping mapping,
              ActionForm form,
              HttpServletRequest request,
              HttpServletResponse response) {
             
              LoginForm loginForm = (LoginForm) form;
              String uname=loginForm.getUname();
              String passwd=loginForm.getPasswd();
              userMgrDAO udao=new userMgrDAO();
              UserInfo u=udao.vilidateUserInfo(uname,passwd);
              if(u!=null){
                     request.setAttribute("user",u);
                     return mapping.findForward("success");
              }
              else {
                     return mapping.findForward("failed");
              }
 
loginForm:
package com.vo.form;
 
import javax.servlet.http.HttpServletRequest;
 
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
 
 
public class LoginForm extends ActionForm {
 
      
       private String passwd="123";
 
      
       private String uname="ximencf";
 
      
 
      
       public ActionErrors validate(
              ActionMapping mapping,
              HttpServletRequest request) {
          ActionErrors err=new ActionErrors();
         
          if(this.uname==null||this.uname.length()<1){
              err.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("uname.err"));
             
          }
          if(this.passwd==null||this.passwd.length()<1){
              err.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("pwd.err"));
             
          }
            
 
          return err;
       }
 
      
       public void reset(ActionMapping mapping, HttpServletRequest request) {
              this.passwd=null;
              this.uname=null;
       }
 
       public String getPasswd() {
              return passwd;
       }
 
      
       public void setPasswd(String passwd) {
              this.passwd = passwd;
       }
 
      
       public String getUname() {
              return uname;
       }
 
      
       public void setUname(String uname) {
              this.uname = uname;
       }
 
}
 
RegisterAction:
 
package com.vo.action;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
 
import com.dao.userMgrDAO;
import com.vo.UserInfo;
import com.vo.form.RegisterForm;
 
 
public class RegisterAction extends Action {
 
 
       public ActionForward execute(
              ActionMapping mapping,
              ActionForm form,
              HttpServletRequest request,
              HttpServletResponse response) {
              RegisterForm registerForm = (RegisterForm) form;
              userMgrDAO udao=new userMgrDAO();
           String uname=registerForm.getUname();
           String passwd=registerForm.getPasswd();
           UserInfo u=new UserInfo();
           u.setPasswd(passwd);
           u.setUname(uname);
           
              if(udao.registerUserInfo(u)){
                    
                     return mapping.findForward("success");
              }
          
              else{
                     return mapping.findForward("failed");
              }
       }
 
}
registerForm:
package com.vo.form;
 
import javax.servlet.http.HttpServletRequest;
 
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
 
 
public class RegisterForm extends ActionForm {
 
      
       private String passwd;
 
      
       private String uname;
 
      
       public ActionErrors validate(
              ActionMapping mapping,
              HttpServletRequest request) {
 
              ActionErrors err=new ActionErrors();
       
        if(this.uname==null||this.uname.length()<1){
               err.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("uname.err"));
              
        }
        if(this.passwd==null||this.passwd.length()<1){
               err.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("pwd.err"));
              
        }
             
 
        return err;
       }
 
       /**
        * Method reset
        * @param mapping
        * @param request
        */
       public void reset(ActionMapping mapping, HttpServletRequest request) {
 
             
       }
 
      
       public String getPasswd() {
              return passwd;
       }
 
      
       public void setPasswd(String passwd) {
              this.passwd = passwd;
       }
 
      
       public String getUname() {
              return uname;
       }
 
       public void setUname(String uname) {
              this.uname = uname;
       }
 
}

Dao:
package com.dao;
 
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;
 
import com.vo.HibernateSessionFactory;
import com.vo.UserInfo;
 
 
public class userMgrDAO  {
       private Session session;
       private Transaction trx;
 
       public boolean registerUserInfo(UserInfo u){
             
              try{
                     session=HibernateSessionFactory.currentSession();
                     trx=session.beginTransaction();
                     session.save(u);
                     
                     trx.commit();
                    
              }
              catch(HibernateException ex){
                     if(trx!=null)trx.rollback();
                     ex.printStackTrace();
              }
              finally{
                     if(session!=null)
                            session.close();
              }
             
             
              return false;
       }
       public UserInfo vilidateUserInfo(String uname,String passwd){
              UserInfo us=null;
              try{
                     session=HibernateSessionFactory.currentSession();
                     trx=session.beginTransaction();
                     us=(UserInfo)session.createQuery("from UserInfo u where u.uname='"+uname+"' and u.passwd='"+passwd+"'").uniqueResult();
            System.out.print(us.getUname());              
                     trx.commit();
                     return us;
              }
              catch(HibernateException ex){
                     if(trx!=null)trx.rollback();
                     ex.printStackTrace();
              }
              finally{
                     if(session!=null)
                            session.close();
              }
              return us;
       }
      
       public userMgrDAO() {
             
       }
      
}

来源:风睿网

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This page contains a single entry by kevinwu published on January 25, 2007 10:34 PM.

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