javaweb ssh实例

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本文介绍的一个简单基于ssh的javaweb实例。

编写工具：eclipse

目录结构：

webapp/          <-- 根目录  
+- src/          <-- java目录   
|  +-com/
|  |   +- action/     
|  |   +- dao/   
|  |   |  +- impl/   
|  |   +- model/  
|  |   +- service/
|  +- beans.xml
|  +- hibernate.cfg.xml
|  +- log4j.properties
|  +- struts.xml  
+- WebContent/   <-- Web目录   
|  +- web-inf/  
|  |  +- lib/    <-- jar存放位置   
|  |  +- web.xml <-- 配置文件   
|  +- index.jsp  <-- 主页  
|  +- logo.jsp

web.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  	<display-name>webapp</display-name>
  	<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
  	</welcome-file-list>
  	<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
  	</filter>
  	<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
  	</filter-mapping>
</web-app>

jar文件：

下载链接

index.jsp代码：

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<form action="logo.action">
	<input type="submit" />hello
</form>
</body>
</html>

logo.jsp代码：

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
success
</body>
</html>

beans.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

<bean id="u" class="com.dao.impl.UserDAOImpl">
</bean>

<bean id="userService" class="com.service.UserService">
	<property name="userDAO" ref="u" />
</bean>

</beans>

hibernate.cfg.xml配置文件：

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

<session-factory>

	<!-- Database connection settings -->
	<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
	<property name="connection.url">jdbc:mysql://localhost:3306/数据库名</property>
	<property name="connection.username">mysql用户名</property>
	<property name="connection.password">mysql用户密码</property>
	
	<!-- if table null create -->
	<property name="hibernate.hbm2ddl.auto">update</property>
	
	<!-- SQL dialect -->
	<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

	<!-- Disable the second-level cache -->
	<property name="cache.provider_class">
	org.hibernate.cache.NoCacheProvider</property>

	<!-- Echo all executed SQL to stdout -->
	<property name="show_sql">true</property>

	<mapping class="com.model.User" />
</session-factory>

</hibernate-configuration>

log4j.properties配置文件：

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c:%L - %m%n
log4j.rootLogger=warn, stdout
log4j.logger.org.hibernate.tool.hbm2ddl=debug

struts.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
<package name="key" extends="struts-default">
	<action name="logo" class="com.action.UserAction" method="add">
		<result>
			/logo.jsp
		</result>
	</action>
</package>
</struts>

com/model/User.java代码：

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "user")
public class User implements Serializable{
private static final long serialVersionUID = 3891096235247216638L;
@Id
@Column(name = "uid")
private String uid;
@Column(name = "username", length = 30, nullable = false)
private String username;
@Column(name = "password", length = 30, nullable = false)
private String password;

public String getUid() {
	return uid;
}
public void setUid(String uid) {
	this.uid = uid;
}
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;
}

}

com/dao/UserDAO.java代码：

import com.model.User;


public interface UserDAO {
public void save(User user);
}

com/dao/impl/UserDAOImpl.java代码：

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;

import com.dao.UserDAO;
import com.model.User;


public class UserDAOImpl implements UserDAO {

public void save(User user) {
	AnnotationConfiguration cfg = new AnnotationConfiguration().configure();
	SessionFactory sf = cfg .buildSessionFactory();
	Session session=sf.openSession();
	session.beginTransaction();
	session.save(user);
	session.getTransaction().commit();
	session.close();
	sf.close();
	System.out.println("user saved!");
}

}

com/service/UserService.java代码：

import com.dao.UserDAO;
import com.model.User;

public class UserService {
private UserDAO userDAO;  
public void add(User user) {
	userDAO.save(user);
}
public UserDAO getUserDAO() {
	return userDAO;
}
public void setUserDAO(UserDAO userDAO) {
	this.userDAO = userDAO;
}
}

com/action/UserAction.java代码：

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.model.User;
import com.opensymphony.xwork2.ActionSupport;
import com.service.UserService;

public class UserAction extends ActionSupport{
public String add() {
	ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");
	UserService service = (UserService)ctx.getBean("userService");
	User u = new User();
	u.setUid("3");
	u.setUsername("zhangsan");
	u.setPassword("zhangsan");
	service.add(u);
	return SUCCESS;
}
}

以上就是简单的javaweb ssh实例。

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