SSH2完美整合流程

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教程流程是重点，应熟练掌握。本教程做简单的账号注册演示，所用工具：Myeclipse-6.5、Struts-2.2.3、Hibernate- 3.2、Spring-2.0、MySql，本教程出自北大青鸟成都锦江校区（原文链接 http://www.scbdqn.com/course/netjava/3172.html），转载请注明原处，谢谢。

一、利用工具快速搭建环境

1、新建一个名为ssh2的Web项目

2、把STRUTS2的依赖JAR包添加到项目工程中。用WinRar解压Struts-2.2.3\apps\struts2- blank.war，把Struts-2.2.3\apps\struts2-blank\WEB-INF\lib下面的所有JAR包添加到WEB工程的 lib目录下。

3、添加Hibernate的依赖库。选中刚创建的项目，右键》具体操作如图所示

需要注意的地方已经勾选出来了，之后点下一步。

这里选择否，待会我们手工来编写。

这个不需要创建，因此不勾选。之后点完成。

4、添加Spring的依赖库。选中刚创建的项目，右键》具体操作如图所示

按下面的选择，不要急着下一步。

下面的选择之后，然后下一步。

Folder一定要写成 WebRoot/WEB-INF，否则容易找不到

不用它创建，然后点完成。

5、因为需要连接数据库，因此我们还需要数据库的依赖JAR包。去下载commons-dbcp-1.4.jar、commons-pool- 1.5.6.jar、mysql-connector-java-5.0.8-bin.jar，并添加进去。由于Struts与Spring整合了，所以不要漏添加 struts2-spring-plugin-2.2.3.jar 文件，它位于 Struts-2.2.3\lib 目录下。

二、编写代码实现功能，处理常见异常

1、在 com.lingdus.bean 包下创建 Users.java 类

package com.lingdus.bean;

import java.io.Serializable;

public class Users implements Serializable {

    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;
    }
}

2、在 com.lingdus.bean 包下创建一个 Users.xml 文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <class name="com.lingdus.bean.Users" table="scbdqn_users">
        <id name="id" column="id" type="int">
            <generator class="increment"></generator>
        </id>
        <property name="username" column="username" type="string"></property>
        <property name="password" column="password" type="string"></property>
    </class>
</hibernate-mapping>

3、在 com.lingdus.dao 下创建一个 UserDAO.java 文件

package com.lingdus.dao;

import com.lingdus.bean.Users;

public interface UserDAO {

public void doRegister(Users user);
}

4、在 com.lingdus.dao.impl 下创建一个 UserDAOImpl.java 文件

package com.lingdus.dao.impl;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.lingdus.bean.Users;
import com.lingdus.dao.UserDAO;

public class UserDAOImpl extends HibernateDaoSupport implements UserDAO {

    public void doRegister(Users user) {

        this.getHibernateTemplate().save(user);
    }
}

5、在 com.lingdus.service 下创建一个 UserService.java 文件

package com.lingdus.service;

import com.lingdus.bean.Users;

public interface UserService {

public void doRegister(Users user);
}

6、在 com.lingdus.service.impl 下创建一个 UserServiceImpl.java 文件

package com.lingdus.service.impl;

import com.lingdus.bean.Users;
import com.lingdus.dao.UserDAO;
import com.lingdus.service.UserService;

public class UserServiceImpl implements UserService {

    private UserDAO userDAO;

    public UserDAO getUserDAO() {
        return userDAO;
    }

    public void setUserDAO(UserDAO userDAO) {
        this.userDAO = userDAO;
    }

    public void doRegister(Users user) {
        this.userDAO.doRegister(user);
    }
}
7、在 com.lingdus.action 下创建一个 UserRegisterAction.java 文件

package com.lingdus.action;

import java.util.Map;

import org.apache.struts2.ServletActionContext;

import com.lingdus.bean.Users;
import com.lingdus.service.UserService;
import com.opensymphony.xwork2.ActionSupport;

public class UserRegisterAction extends ActionSupport {

    private UserService service;

    private Users user;

    public UserService getService() {
        return service;
    }

    public void setService(UserService service) {
        this.service = service;
    }

    public Users getUser() {
        return user;
    }

    public void setUser(Users user) {
        this.user = user;
    }

    @Override
    public String execute() throws Exception {
        this.service.doRegister(this.user);
        if (0 == this.user.getId()) {
            return ERROR;
        }
        return SUCCESS;
    }
}

8、在 WebRoot\WEB-INF\applicationContext.xml 中替换成以下内容

<?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="dataSource"
        class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName">
            <value>com.microsoft.sqlserver.jdbc.SQLServerDriver</value>
        </property>
        <property name="url">
            <value>jdbc:sqlserver://localhost:1433;databaseName=ssh2</value>
        </property>
        <property name="username">
            <value>sa</value>
        </property>
        <property name="password">
            <value>sql2008</value>
        </property>
    </bean>
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="mappingResources">
            <list>
                <value>com/lingdus/bean/Users.xml</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">
                    org.hibernate.dialect.SQLServerDialect
                </prop>
                <prop key="hibernate.show_sql">false</prop>
            </props>
        </property>
    </bean>
    <bean id="userDAO" class="com.lingdus.dao.impl.UserDAOImpl">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <bean id="userService"
        class="com.lingdus.service.impl.UserServiceImpl">
        <property name="userDAO" ref="userDAO"></property>
    </bean>
    <bean id="springUserRegisterAction"
        class="com.lingdus.action.UserRegisterAction">
        <property name="service" ref="userService"></property>
    </bean>
</beans>

9、在 src 目录下创建一个 struts.xml 文件，内容如下

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
    "http://struts.apache.org/dtds/struts-2.1.7.dtd">
<struts>
    <package name="ssh2" extends="struts-default">
        <action name="doRegister" class="springUserRegisterAction">
            <result name="success">ok.jsp</result>
            <result name="error">error.jsp</result>
        </action>
    </package>
</struts>

10、在 WebRoot\WEB-INF\web.xml 中替换成以下内容

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    <filter>
        <filter-name>ssh2</filter-name>
        <filter-class>
            org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
        </filter-class>
    </filter>
    <filter-mapping>
        <filter-name>ssh2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
</web-app>

11、创建 ssh2 数据库 Users 表，字段id(int，仅设置主键)、username(varchar(255))、password(varchar(255))

12、删除lib目录下的 asm-2.2.3.jar、asm-3.1.jar 文件。

13、编写 index.jsp 文件，具体如下

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    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>My JSP 'index.jsp' starting page</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">
    </head>

    <body>
        <form action="doRegister.action" method="post">
            账号：
            <input type="text" name="user.username" />
            <br />
            密码：
            <input type="password" name="user.passoword" />
            <br />
            <input type="submit" value="注册" />
        </form>
    </body>
</html>

14、搭建 Tomcat 并启动，看样子问题不大，教程就此结束。

2011-12-19 15:56:14 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\MyEclipse 6.5\bin;D:\java resource\apache-tomcat-6.0.33\bin
2011-12-19 15:56:14 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2011-12-19 15:56:14 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1123 ms
2011-12-19 15:56:14 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2011-12-19 15:56:14 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.33
2011-12-19 15:56:15 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor host-manager.xml
2011-12-19 15:56:15 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor manager.xml
2011-12-19 15:56:15 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory docs
2011-12-19 15:56:15 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory examples
2011-12-19 15:56:15 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2011-12-19 15:56:15 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2011-12-19 15:56:16 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory ROOT
2011-12-19 15:56:16 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory ssh2
log4j:WARN No appenders could be found for logger (org.springframework.util.ClassUtils).
log4j:WARN Please initialize the log4j system properly.
2011-12-19 15:56:17 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring root WebApplicationContext
2011-12-19 15:56:27 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2011-12-19 15:56:28 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2011-12-19 15:56:28 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/47 config=null
2011-12-19 15:56:28 org.apache.catalina.startup.Catalina start
信息: Server startup in 13407 ms