useregaction.java

这是一个通过来struts和hiberate实现的用户注册登陆源代码

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.0.1/xslt/JavaClass.xsl

package com.mycompany.struts.action;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import com.mycompany.HibernateSessionFactory;
import com.mycompany.po.UserInfo;
import com.mycompany.struts.form.UseRegForm;

/** 
 * MyEclipse Struts
 * Creation date: 12-24-2005
 * 
 * XDoclet definition:
 * @struts.action path="/useReg" name="useRegForm" input="/form/useReg.jsp" scope="request" validate="true"
 * @struts.action-forward name="succ" path="/succ.html"
 */
public class UseRegAction extends Action {

	// --------------------------------------------------------- Instance Variables

	// --------------------------------------------------------- Methods

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		UseRegForm useRegForm = (UseRegForm) form;
		Transaction tx=null;
		List ul=null;
		Session se=HibernateSessionFactory.currentSession();
		try{
			tx=se.beginTransaction();
			String sql="from com.mycompany.po.UserInfo as user where user.name='"+useRegForm.getName()+"'";
			Query q=se.createQuery(sql);
			ul=q.list();
			tx.commit();
		}
		catch(Exception e){
			if(tx!=null)tx.rollback();
			System.out.println(e.toString());
		}
		ActionErrors nerror=new ActionErrors();
		if(ul==null||ul.isEmpty()){
			UserInfo user=new UserInfo();
			user.setName(useRegForm.getName());
			user.setPassword(useRegForm.getPw());
			saveUser(user);
			return mapping.findForward("succ");
		}else{
			nerror.add("name",new ActionError("changname"));
			this.saveErrors(request,nerror);
			return mapping.findForward("useReg");
		}
	}
	private void saveUser(UserInfo user){
		Transaction tx=null;
		try{
			Session se=HibernateSessionFactory.currentSession();
			tx=se.beginTransaction();
			se.save(user);
			tx.commit();
			//System.out.println("sd");
		}
		catch(Exception e){
			if(tx!=null)tx.rollback();
			System.out.println(e.toString());
    	}
		
	}

}