- 浏览: 683433 次
- 性别:
- 来自: 北京
-
文章分类
- 全部博客 (362)
- java基础 (33)
- html/css+div/javascript (17)
- Ajax/XML/JSON/XSL (7)
- JQuery (11)
- Extjs (1)
- JSP/Servlet (19)
- MVC模式 (4)
- struts 1 (17)
- Struts 2.3.4 (17)
- Spring 3.2 (26)
- Springmvc (3)
- Hibernate 4.1 (21)
- ibatis (6)
- Velocity模板语言 (2)
- Rose框架 (5)
- EJB (1)
- JUnit测试 (2)
- 数据库DB (24)
- 重构 / 设计模式 (3)
- 开发工具IDE (37)
- 数据结构与算法设计 (3)
- Android (12)
- Linux (4)
- bug集合 (29)
- 缓存技术(redis) (3)
- Lucene全文索引 (15)
- maven3.0.5 (4)
- 小工具集合 (18)
- 面试题 (5)
- 闲聊 (11)
- 其他 (4)
- 接口API (2)
- work (2)
- Flex (0)
- JMS (1)
- 开源项目集合 (1)
- 技术博客 (1)
- 分类04 (0)
- 分类05555 (0)
最新评论
-
小小小羊：
好屌...
java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$Refle -
liubinli2005：
这个可以脱底spring。单独使用吗？
DAO层:jade -
cangbaotu：
我觉得对于开发者来说，能脚本化编写爬虫是一件挺开心的事情(￣▽ ...
网页爬取 -
asjava：
很好的文章, 但每段代码清单都重复了一次.
spring 事务 -
xia635317478：
jethypc 写道验证码的session无法传过去啊 还是我 ...
登陆验证码(struts2实现)
架构的演变
一、两层架构(jsp+DB)
register.jsp
registerDeal.jsp 二、三层架构（jsp+Entity/service+DB) register.jsp <%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>用户注册</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<form method="post" action="registerDeal.jsp">
用户名：<input type="text" name="username"><br>
密码：<input type="password" name="password"><br>
确认密码：<input type="password" name="password2"><br>
<input type="submit" value="提交"/>
</form><br>
</body>
</html>
<%@ page language="java" import="java.util.*, java.sql.*" pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
String username = request.getParameter("username");
String password = request.getParameter("password");
String password2 = request.getParameter("password2");
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/spring", "root", "bjsxt");
String sqlQuery = "select count(*) from user where username = ?";
PreparedStatement psQuery = conn.prepareStatement(sqlQuery);
psQuery.setString(1, username);
ResultSet rs = psQuery.executeQuery();
rs.next();
int count = rs.getInt(1);
if(count > 0) {
response.sendRedirect("registerFail.jsp");
psQuery.close();
conn.close();
return;
}
String sql = "insert into user values (null, ?, ?)";
PreparedStatement ps = conn.prepareStatement(sql);
ps.setString(1, username);
ps.setString(2, password);
ps.executeUpdate();
ps.close();
conn.close();
response.sendRedirect("registerSuccess.jsp");
%>
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>用户注册</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<form method="post" action="registerDeal.jsp">
用户名：<input type="text" name="username"><br>
密码：<input type="password" name="password"><br>
确认密码：<input type="password" name="password2"><br>
<input type="submit" value="提交"/>
</form><br>
</body>
</html>
registerDeal.jsp
<%@ page language="java" import="java.util.*, java.sql.*" pageEncoding="GB18030"%>
<%@ page import="com.bjsxt.registration.service.*" %>
<%@ page import="com.bjsxt.registration.model.*" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
String username = request.getParameter("username");
String password = request.getParameter("password");
String password2 = request.getParameter("password2");
User u = new User();
u.setUsername(username);
u.setPassword(password);
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/spring", "root", "bjsxt");
UserManager um = new UserManager();
boolean exist = um.exists(u);
if(exist) {
response.sendRedirect("registerFail.jsp");
return;
}
um.add(u);
response.sendRedirect("registerSuccess.jsp");
%>
user.java
package com.bjsxt.registration.model;
import com.bjsxt.registration.service.UserManager;
//贫血模型 充血模型
public class User {
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
userManager.java
package com.bjsxt.registration.service;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import com.bjsxt.registration.model.User;
public class UserManager {
public boolean exists(User u) throws Exception {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/spring", "root", "bjsxt");
String sqlQuery = "select count(*) from user where username = ?";
PreparedStatement psQuery = conn.prepareStatement(sqlQuery);
psQuery.setString(1, u.getUsername());
ResultSet rs = psQuery.executeQuery();
rs.next();
int count = rs.getInt(1);
psQuery.close();
conn.close();
if(count > 0) {
return true;
}
return false;
}
public void add(User u) throws Exception {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/spring", "root", "bjsxt");
String sql = "insert into user values (null, ?, ?)";
PreparedStatement ps = conn.prepareStatement(sql);
ps.setString(1, u.getUsername());
ps.setString(2, u.getPassword());
ps.executeUpdate();
ps.close();
conn.close();
}
}
三、三层架构（jsp+service+Hibernate）
registerDeal.jsp
<%@ page language="java" import="java.util.*, java.sql.*" pageEncoding="GB18030"%>
<%@ page import="com.bjsxt.registration.service.*" %>
<%@ page import="com.bjsxt.registration.model.*" %>
<%@ page import="com.bjsxt.registration.service.impl.*" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
String username = request.getParameter("username");
String password = request.getParameter("password");
String password2 = request.getParameter("password2");
UserManager um = new UserManagerImpl();
boolean exist = um.exists(u);
if(exist) {
response.sendRedirect("registerFail.jsp");
return;
}
um.add(u);
response.sendRedirect("registerSuccess.jsp");
%>
Service层：UserManager.java
package com.bjsxt.registration.service;
import com.bjsxt.registration.model.User;
public interface UserManager {
public abstract boolean exists(User u) throws Exception;
public abstract void add(User u) throws Exception;
}
UserManagerImpl.java
package com.bjsxt.registration.service.impl;
import com.bjsxt.registration.dao.UserDao;
import com.bjsxt.registration.dao.impl.UserDaoImpl;
import com.bjsxt.registration.model.User;
import com.bjsxt.registration.service.UserManager;
public class UserManagerImpl implements UserManager {
private UserDao userDao = new UserDaoImpl();
public UserDao getUserDao() {
return userDao;
}
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}
/* (non-Javadoc)
* @see com.bjsxt.registration.service.impl.UserManager#exists(com.bjsxt.registration.model.User)
*/
public boolean exists(User u) throws Exception {
return userDao.checkUserExistsWithName(u.getUsername());
}
/* (non-Javadoc)
* @see com.bjsxt.registration.service.impl.UserManager#add(com.bjsxt.registration.model.User)
*/
public void add(User u) throws Exception {
userDao.save(u);
}
}
Dao层（Hibernate）：UserDao.java
package com.bjsxt.registration.dao;
import com.bjsxt.registration.model.User;
public interface UserDao {
public void save(User u);
public boolean checkUserExistsWithName(String username);
}
UserDaoImpl.java
package com.bjsxt.registration.dao.impl;
import org.hibernate.SessionFactory;
import org.hibernate.classic.Session;
import com.bjsxt.registration.dao.UserDao;
import com.bjsxt.registration.model.User;
import com.bjsxt.registration.util.HibernateUtil;
public class UserDaoImpl implements UserDao {
public void save(User u) {
SessionFactory sf = HibernateUtil.getSessionFactory();
Session s = sf.getCurrentSession();
s.beginTransaction();
s.save(u);
s.getTransaction().commit();
}
public boolean checkUserExistsWithName(String username) {
SessionFactory sf = HibernateUtil.getSessionFactory();
Session s = sf.getCurrentSession();
s.beginTransaction();
long count = (Long)s.createQuery("select count(*) from User u where u.username = :username")
.setString("username", username)
.uniqueResult();
s.getTransaction().commit();
if(count > 0) return true;
return false;
}
}
user.java(@Entity Hibernate注解)
package com.bjsxt.registration.model;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import com.bjsxt.registration.service.impl.UserManagerImpl;
//贫血模型 充血模型
@Entity
public class User {
private int id;
private String username;
private String password;
@Id
@GeneratedValue
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
四、jsp+struts+Service+Hibernate
UserManager um = new UserManagerImpl();
boolean exist = um.exists(u);
if(exist) {
response.sendRedirect("registerFail.jsp");
return;
}
上面的代码被struts2给取代了
在struts2处理类Action里面：
1.spring通过
@Resource
private UserManager userManager ;
注入封装了UserDao的service处理类，在action里面直接调用处理类操作
2.struts.xml配置文件中的Result取代了上面的跳转
register.jap
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>用户注册</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<form method="post" action="user.action">
用户名：<input type="text" name="username"><br>
密码：<input type="password" name="password"><br>
确认密码：<input type="password" name="password2"><br>
<input type="submit" value="提交"/>
</form><br>
</body>
</html>
UserAction.java
package com.bjsxt.registration.action;
import javax.annotation.Resource;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Scope;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.stereotype.Component;
import com.bjsxt.registration.model.User;
import com.bjsxt.registration.service.UserManager;
import com.opensymphony.xwork2.ActionSupport;
@Component("user")
@Scope("prototype")
public class UserAction extends ActionSupport {
private String username;
private String password;
private String password2;
private UserManager um;
public UserManager getUm() {
return um;
}
@Resource(name="userManager")
public void setUm(UserManager um) {
this.um = um;
}
@Override
public String execute() throws Exception {
User u = new User();
u.setUsername(username);
u.setPassword(password);
if(um.exists(u)) {
return "fail";
}
um.add(u);
return "success";
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getPassword2() {
return password2;
}
public void setPassword2(String password2) {
this.password2 = password2;
}
}
五、jsp+struts+Hibernate+spring
spring把Dao注入到Daoimpl
Service注入到Serviceimpl
Dao注入到Service
Service注入到Action处理类
jsp页面*。action可以直接在action里面操作，跳转！
发表评论
相关推荐
SAP技术架构演变.docSAP技术架构演变.docSAP技术架构演变.docSAP技术架构演变.docSAP技术架构演变.doc
大型网站架构演变和知识体系 之前也有一些介绍大型网站架构演变的文章，例如LiveJournal 的、ebay 的，都是非常值得参考的，不过感觉他们讲的更多的是每次演变的结果，而没有 很详细的讲为什么需要做这样的演变，再...
大型网站架构演变和知识体系，从单一到集群。
技术架构演变过程目录 1.架构演变第一步：物理分离webserver和数据库。 2.架构演变第二步：增加页面缓存 3.架构演变第三步：增加页面片段缓存 4.架构演变第四步：数据缓存 5.架构演变第五步： 增加webserver，应用...
大型网站架构演变和知识体系大型网站架构演变和知识体系
大型网站架构演变和知识体系.rar大型网站架构演变和知识体系.rar
中大型网站架构演变之路，对知名网站的web架构做深入解析，实现网站的优化。
大型互联网架构演变历程 1. 课程目标 1.1. 了解互联网架构演变历程 1.2. 了解当前互联网架构中常用的一些 1.3. 站在巨人的肩膀上，我们的视野会更高一些 2. 淘宝技术这10年 2.1. 淘宝现状
大型网站架构演变和知识体系 之前也有一些介绍大型网站架构演变的文章，例如LiveJournal的、ebay的，都是非常值得参考的，不过感觉他们讲的更多的是每次演变的结果，而没有很详细的讲为什么需要做这样的演变，再...
整车电子电器架构演变推 动车联网信息安全的发展.pdf
大型网站架构演变和知识体系 之前也有一些介绍大型网站架构演变的文章，例如LiveJournal的、ebay的，都是非常值得参考的，不过感觉他们讲的更多的是每次演变的结果，而没有很详细的讲为什么需要做这样的演变，再加上...
该文档阐述了互联网时代的演变历程，看完后能激起了对大数据技术的兴趣