sysusermap.java

J2EE SSH 的一个例子

package com.huangdong.dbwebdemo.db;
import java.util.Calendar;
import net.sf.hibernate.*;
import com.huangdong.dbwebdemo.dao.SysUser;
import com.huangdong.dbwebdemo.form.SysuserForm;

public class SysUserMap extends AbsBaseMap {

   public void createSysUser(SysuserForm sysuerForm)
		throws HibernateException {
		// 使用sysuerForm的相关属性新建sysuser实例
		SysUser sysuser =
			new SysUser(
				sysuerForm.getUsername(),
				sysuerForm.getUserpasword(),
				Calendar.getInstance());
		// 启动事务
		Session session = this.beginTransaction();
		try {
			// 新增这个实例到数据库中
			session.save(sysuser);
			// commit
			this.endTransaction(true);
		} catch (HibernateException e) {
			// rollback
			this.endTransaction(false);
			throw e;
		}
	}

        /**
	 * 更新一个sysuser
	 * @param sysuerForm 包含更新内容的sysuser form bean
	 * @throws HibernateException
	 */
	public void updateSysUserForm(SysuserForm sysuerForm)
		throws HibernateException {
		
		
		// 启动事务
		Session session = this.beginTransaction();
                SysUser sysuser = (SysUser) session.load(SysUser.class, sysuerForm.getUserid());
                 // 使用sysuerForm的相关属性新建sysuser实例
                 sysuser.setUsername(sysuerForm.getUsername());
                 sysuser.setUserpasword(sysuerForm.getUserpasword());
		try {
			// 新增这个实例到数据库中
			session.flush();
			// commit
			this.endTransaction(true);
		} catch (HibernateException e) {
			// rollback
			this.endTransaction(false);
		}
	}

       public void updateSysUser(SysUser user)
		throws HibernateException {
		
		Session session = this.beginTransaction();
		try {
			// 新增这个实例到数据库中
			session.update(user);
			// commit
			this.endTransaction(true);
		} catch (HibernateException e) {
			// rollback
			this.endTransaction(false);
		}
	}


	/**
	 * 依据一个sysuser formbean来删除该用户
	 * @param sysuerForm 包含该用户信息的Form Bean
	 * @throws HibernateException
	 */
	public void deleteSysUser(SysuserForm sysuerForm)
		throws HibernateException {
		String userid = sysuerForm.getUserid();
		this.deleteSysUser(userid);
	}
	
	/**
	 * 依据用户ID来删除该用户
	 * @param userid 用户ID
	 * @throws HibernateException
	 */
	public void deleteSysUser(String userid) throws HibernateException {
		Session session = this.beginTransaction();
		try {
			// 先向数据库中查询是否有这个用户
			SysUser sysuser = (SysUser) session.load(SysUser.class, userid);
			// 干掉它！
			session.delete(sysuser);
			this.endTransaction(true);
		} catch (HibernateException e) {
			this.endTransaction(false);
		}
	}

       public boolean ExistSysUser(String userid) throws HibernateException{
                SysUser sysuser=null;
		Session session = this.beginTransaction();
		// 向数据库中查询是否有这个用户
		try{
                 	sysuser = (SysUser) session.load(SysUser.class, userid);
                } catch (HibernateException e) {
			this.endTransaction(false);
		}
                return (sysuser!=null);
	}

       

}