简单的用户登陆管理系统

/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package com.wlin.struts.action; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.DispatchAction; import com.wlin.operatedb.Generate; import com.wlin.operatedb.OperateDb; import com.wlin.pojo.User1; import com.wlin.struts.form.LoginForm; /** * MyEclipse Struts * Creation date: 10-06-2008 * * XDoclet definition: * @struts.action path="/login" name="loginForm" input="/index.jsp" parameter="methods" scope="request" validate="true" */ public class LoginAction extends DispatchAction { /* * Generated Methods */ OperateDb db = new OperateDb(); /** * Method execute * @param mapping * @param form * @param request * @param response * @return ActionForward */ public ActionForward login(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub //接受用户名和密码 User1 u1= new User1(); String name = loginForm.getRstXm(); String pass = loginForm.getRstMm(); String hql = "from User1 as u1 where u1.name='"+name+"' and u1.password='"+pass+"'"; List list = db.query(hql); if(list.size()>0){ return new ActionForward("/login.do?methods=query"); }else{ request.setAttribute("info","用户名或密码错误"); return new ActionForward("/index.jsp"); } } /** * 查询数据 * @param mapping * @param form * @param request * @param response * @return */ public ActionForward query(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub User1 u1 = new User1(); String hql = "from User1"; List list = db.query(hql); if(list!=null||!list.equals("")){ request.setAttribute("palist",list); } return new ActionForward("/UserInsert.jsp"); } /** * 增加数据 */ public ActionForward insert(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub Generate tt= new Generate(); String id = tt.generateId(); User1 u1= new User1(); u1.setId(id); u1.setName(request.getParameter("name"));//姓名 u1.setPassword(request.getParameter("password"));//密码 u1.setQuestion(request.getParameter("question"));//提示问题 u1.setAnswer(request.getParameter("answer"));//问题答案 u1.setEmail(request.getParameter("email"));//E-mail u1.setState(request.getParameter("state"));//状态 u1.setDiyname(request.getParameter("diyname"));//别名 u1.setMemo(request.getParameter("memo"));//备注 boolean hql = db.insert(u1); if(hql){ request.setAttribute("info", "保存成功"); } return new ActionForward("/login.do?methods=query"); } /* * 删除数据 */ public ActionForward delete(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { // TODO Auto-generated method stub //获取传递过来的ID值 String id = request.getParameter("id"); //实例话数据库操作类 String sql="delete User1 as us where us.id ='"+id+"'"; boolean hql=db.delete(sql); if(hql){ request.setAttribute("info", "删除成功"); return new ActionForward("/login.do?methods=query"); }else{ request.setAttribute("info", "删除失败"); return new ActionForward("/index.jsp"); } } /** * 修改数据 * @param mapping * @param form * @param request * @param response * @return */ public ActionForward edit(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub User1 u1= new User1(); u1.setId(request.getParameter("id")); u1.setName(request.getParameter("name"));//姓名 u1.setPassword(request.getParameter("password"));//密码 u1.setQuestion(request.getParameter("question"));//提示问题 u1.setAnswer(request.getParameter("answer"));//问题答案 u1.setEmail(request.getParameter("email"));//E-mail u1.setState(request.getParameter("state"));//状态 u1.setDiyname(request.getParameter("diyname"));//别名 u1.setMemo(request.getParameter("memo"));//备注 boolean hql = db.update(u1); if(hql){ request.getSession().setAttribute("info", "修改成功"); } return new ActionForward("/login.do?methods=query"); } }