1.简介
用户登录模块，指的是根据用户输入的用户名和密码，对用户的身份进行验证等。如果用户没有登录，用户就无法访问其他的一些jsp页面，甚至是action都不能访问。
二、简单设计及实现
本程序是基于Java的SSH框架进行的。
1.数据库设计
用户登录模块，指的是根据用户输入的用户名和密码，对用户的身份进行验证等。如果用户没有登录，用户就无法访问其他的一些jsp页面，甚至是action都不能访问。
二、简单设计及实现
本程序是基于Java的SSH框架进行的。
1.数据库设计
我们应该设计一个用户表，其Userinfo表，对应的SQL语句为（Oracle数据库）：
create table userinfo
(
id varchar2(36) primary key,
username varchar2(50) not null,
password varchar2(50) not null,
auth_limit varchar2(10) not null,
register_time varchar2(40),
create_time varchar2(40),
remarks varchar2(1024)
);
分别是id，也就是UUID，用户名、密码、权限、注册时间、记录插入数据库的时间、备注等几个字段。
2.使用MyEclipse的Hibernate逆向工具，生成对应的Java Bean和相应的hibernate的xml配置文件Userinfo.hbm.xml
package edu.njupt.zhb.bean;
/**
* Userinfo entity. @author MyEclipse Persistence Tools
*/
public class Userinfo implements java.io.Serializable {
// Fields
private String id;
private String username;
private String password;
private String authLimit;
private String registerTime;
private String createTime;
private String remarks;
// Constructors
/** default constructor */
public Userinfo() {
}
/** minimal constructor */
public Userinfo(String id, String username, String password,
String authLimit) {
this.id = id;
this.username = username;
this.password = password;
this.authLimit = authLimit;
}
/** full constructor */
public Userinfo(String id, String username, String password,
String authLimit, String registerTime, String createTime,
String remarks) {
this.id = id;
this.username = username;
this.password = password;
this.authLimit = authLimit;
this.registerTime = registerTime;
this.createTime = createTime;
this.remarks = remarks;
}
// Property accessors
public String getId() {
return this.id;
}
public void setId(String id) {
this.id = id;
}
public String getUsername() {
return this.username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return this.password;
}
public void setPassword(String password) {
this.password = password;
}
public String getAuthLimit() {
return this.authLimit;
}
public void setAuthLimit(String authLimit) {
this.authLimit = authLimit;
}
public String getRegisterTime() {
return this.registerTime;
}
public void setRegisterTime(String registerTime) {
this.registerTime = registerTime;
}
public String getCreateTime() {
return this.createTime;
}
public void setCreateTime(String createTime) {
this.createTime = createTime;
}
public String getRemarks() {
return this.remarks;
}
public void setRemarks(String remarks) {
this.remarks = remarks;
}
}
3.新建一个UserInfoService接口
/*
* $filename: VideoInfoService.java,v $
* $Date: 2014-1-2 $
* Copyright (C) ZhengHaibo, Inc. All rights reserved.
* This software is Made by Zhenghaibo.
*/
package edu.njupt.zhb.service;
import edu.njupt.zhb.bean.Userinfo;
/*
*@author: ZhengHaibo
*web: http://blog.csdn.net/nuptboyzhb
*GitHub https://github.com/nuptboyzhb
*mail: zhb931706659@126.com
*2014-1-2 Nanjing,njupt,China
*/
public interface UserInfoService {
String getUserInfoList(int page, int rows);
String addUser(Userinfo userinfo);
String deleteUser(String userId);
String editUser(Userinfo userinfo);
Userinfo getUserInfoByName(String username);
}
4.新建一个UserInfoServiceImpl类
/*
* $filename: VideoInfoServiceImpl.java,v $
* $Date: 2014-1-2 $
* Copyright (C) ZhengHaibo, Inc. All rights reserved.
* This software is Made by Zhenghaibo.
*/
package edu.njupt.zhb.service.impl;
import java.util.ArrayList;
import java.util.List;
import net.sf.json.JSONObject;
import edu.njupt.zhb.bean.Userinfo;
import edu.njupt.zhb.dao.BaseDao;
import edu.njupt.zhb.service.UserInfoService;
import edu.njupt.zhb.utils.DataGrid;
import edu.njupt.zhb.utils.Tips;
import edu.njupt.zhb.view.ViewUser;
/*
*@author: ZhengHaibo
*web: http://blog.csdn.net/nuptboyzhb
*GitHub https://github.com/nuptboyzhb
*mail: zhb931706659@126.com
*2014-1-2 Nanjing,njupt,China
*/
public class UserInfoServiceImpl implements UserInfoService{
private BaseDao<Userinfo> userinfoBaseDao;
public BaseDao<Userinfo> getUserBaseDao() {
return userinfoBaseDao;
}
public void setUserBaseDao(BaseDao<Userinfo> userinfoBaseDao) {
this.userinfoBaseDao = userinfoBaseDao;
}
@Override
public String getUserInfoList(int page, int rows) {
// TODO Auto-generated method stub
System.out.println("page="+page+",rows="+rows);
String hql = "from Userinfo";
try {
List<Userinfo> list = userinfoBaseDao.find(hql,page,rows);
List<ViewUser> resultList = new ArrayList<ViewUser>();
for(Userinfo userinfo:list){
ViewUser viewUser = new ViewUser();
viewUser.setBz(userinfo.getRemarks());
viewUser.setId(userinfo.getId());
viewUser.setPwd(userinfo.getPassword());
viewUser.setYhm(userinfo.getUsername());
viewUser.setYhqx(userinfo.getAuthLimit());
viewUser.setZcsj(userinfo.getRegisterTime());
resultList.add(viewUser);
}
DataGrid<ViewUser> dataGrid = new DataGrid<ViewUser>();
dataGrid.setRows(resultList);
dataGrid.setTotal(userinfoBaseDao.total(hql));
String result = JSONObject.fromObject(dataGrid).toString();
return result;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public String addUser(Userinfo userinfo) {
// TODO Auto-generated method stub
Tips tips = new Tips();
String hql = "from Userinfo where username = '"+userinfo.getUsername()+"'";
try {
List<Userinfo> list = userinfoBaseDao.find(hql);
if(list!=null&&list.size()>0){
tips.setMsg("添加失败!用户名已经存在！");
return JSONObject.fromObject(tips).toString();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
userinfoBaseDao.save(userinfo);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
tips.setMsg("添加失败");
return JSONObject.fromObject(tips).toString();
}
tips.setMsg("添加成功");
return JSONObject.fromObject(tips).toString();
}
public String deleteUser(String userid) {
// TODO Auto-generated method stub
Tips tips = new Tips();
try {
userinfoBaseDao.executeHql("delete from Userinfo where id = '"+userid+"'");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
tips.setMsg("删除失败");