struts2+hibernate整合实现登录注册功能

package com.oe.action; import java.util.List; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.AnnotationConfiguration; import com.oe.po.Student; import com.opensymphony.xwork2.ActionSupport; public class UserAction extends ActionSupport{ private int studentId; private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } private String password; public int getStudentId() { return studentId; } public void setStudentId(int studentId) { this.studentId = studentId; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String login(){ SessionFactory sf = new AnnotationConfiguration().configure().buildSessionFactory(); Session session = sf.getCurrentSession(); session.beginTransaction(); String hql = "from Student s where s.studentId=? and s.password=?"; System.out.println(hql); List list = (List)session.createQuery(hql).setInteger(0, studentId).setString(1, password).list(); session.getTransaction().commit(); if(list.isEmpty()){ this.addFieldError("Error", "登录失败 "); return ERROR; } return SUCCESS; } public String register(){ SessionFactory sf = new AnnotationConfiguration().configure().buildSessionFactory(); Session session = sf.getCurrentSession(); session.beginTransaction(); String hql = "from Student s where s.studentId=?"; List list = (List)session.createQuery(hql).setInteger(0, studentId).list(); if(list.isEmpty()){ Student student = new Student(); student.setStudentId(studentId); student.setName(name); student.setPassword(password); session.save(student); session.getTransaction().commit(); return SUCCESS; } else{ this.addFieldError("Error", "注册失败!"); return ERROR; } } }