Struts2 + Spring 2.5 + Hibernate 3.2登录实例

1. 创建一个WEB工程


2. 加入Struts 2核心包

    struts2-core-2.0.14.jar

    commons-logging-1.0.4.jar

    freemarker-2.3.8.jar

    ognl-2.6.11.jar

    xwork-2.0.7.jar

    struts2-spring-plugin-2.0.14.jar

3. 加载Spring 2.5选择以下包

    Spring 2.5 AOP Libraries

     Spring 2.5 Core Libraries

     Spring 2.5 Persistence Core Libraries

     Spring 2.5 PersistenceJDBC Libraries

     Spring 2.5 Web Libraries

     选择spring配置文件存储位置为WEB-INF文件夹

4. 加载Hibernate 3.1

    包全部选择

    下一步 选择Existing Spring configuration file

             在SessionFactory Id后 输入: sessionFactory

   下一步 选择配置好的数据库连接

    finish后有一个keep exting 和replace

    选择replace

5. web.xml

<?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">
      
    <!-- 配置spring的监听器 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext-*.xml</param-value>
    </context-param>
    <!-- 开启监听 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

      
    <!-- Struts2 配置 -->
      
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
      
    <welcome-file-list>
        <welcome-file>login.jsp</welcome-file>
    </welcome-file-list>
</web-app>




6. 在src下建struts.xml


<?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>

<!--导入struts-default.xml文件 -->
<include file="struts-default.xml"></include>

<!-- 配置中文支持 -->
<constant name="struts.i18n.encoding" value="GBK"></constant>

<!-- 配置Action -->
<package name="struts" extends="struts-default" namespace="/">
   <action name="login" class="loginAction">
    <result name="success">/result.jsp</result>
    <result name="fail">/error.jsp</result>
   </action>
</package>

</struts>


7. 创建数据表

create table `mytest`.`person`(
`id` INT default '' not null,
`uname` VARCHAR(20),
`upwd` VARCHAR(20)
);

8. 使用工具通过Person表生成类文件和Person.hbm.xml


package com.user.vo;

public class Person implements java.io.Serializable {

    private Integer id;
    private String uname;
    private String upwd;

    public Person() {
    }

    public Person(Integer id) {
        this.id = id;
    }
   
    public Person(Integer id, String uname, String upwd) {
        this.id = id;
        this.uname = uname;
        this.upwd = upwd;
    }
   
    public Integer getId() {
        return this.id;
    }
   
    public void setId(Integer id) {
        this.id = id;
    }

    public String getUname() {
        return this.uname;
    }
   
    public void setUname(String uname) {
        this.uname = uname;
    }

    public String getUpwd() {
        return this.upwd;
    }
   
    public void setUpwd(String upwd) {
        this.upwd = upwd;
    }

}



<?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.user.vo.Person" table="person" catalog="mytest">
   <id name="id" type="java.lang.Integer">
    <column name="id" length="4" />
   </id>
   <property name="uname" type="java.lang.String">
    <column name="uname" length="20" />
   </property>
   <property name="upwd" type="java.lang.String">
    <column name="upwd" length="20" />
   </property>
</class>
</hibernate-mapping>

9. 创建业务逻辑处理类


package com.user.dao;

import java.util.List;

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

import com.user.vo.Person;

public class PersonManager extends HibernateDaoSupport{

public boolean isLogin(Person per){
   boolean flag = false;
 
   String hql = "From Person as p where p.uname=? and p.upwd=?";
   Query q = this.getSession().createQuery(hql);
   q.setString(0, per.getUname());
   q.setString(1, per.getUpwd());
   List all = q.list();
 
   if(all.size() > 0){
    flag = true;
   }
   else{
    flag = false;
   }
 
   return flag;
}

}



10. 创建Action


package com.user.action;

import com.opensymphony.xwork2.ActionSupport;
import com.user.dao.PersonManager;
import com.user.vo.Person;

public class LoginAction extends ActionSupport{

private String username;
private String password;
private PersonManager personManager;

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 PersonManager getPersonManager() {
   return personManager;
}

public void setPersonManager(PersonManager personManager) {
   this.personManager = personManager;
}

@Override
public String execute() throws Exception {
   String flag = "";

   Person per = new Person();
   per.setUname(this.username);
   per.setUpwd(this.password);
 
   if(personManager.isLogin(per)){
    flag = "success";
   }
   else{
    flag = "fail";
   }
 
   return flag;
}



}



11. 配置applicationContext.xml


<?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">
   <property name="driverClassName"
    value="org.gjt.mm.mysql.Driver">
   </property>
   <property name="url" value="jdbc:mysql://localhost:3306/mytest"></property>
   <property name="username" value="root"></property>
   <property name="password" value="root"></property>
</bean>
<bean id="sessionFactory"
   class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
   <property name="dataSource">
    <ref bean="dataSource" />
   </property>
   <property name="hibernateProperties">
    <props>
     <prop key="hibernate.dialect">
      org.hibernate.dialect.MySQLDialect
     </prop>
    </props>
   </property>
   <property name="mappingResources">
    <list>
     <value>com/user/vo/Person.hbm.xml</value></list>
   </property>
</bean>

<!--   配置PersonManager.java类文件 -->

<bean id="personManager" class="com.user.dao.PersonManager" abstract="false" lazy-init="default" autowire="default" dependency-check="default">
      <property name="sessionFactory" >
       <ref local="sessionFactory"/>
      </property>
</bean>

<!--   配置LoginAction.java类文件 -->

<bean id="loginAction" class="com.user.action.LoginAction" >
   <property name="personManager">
           <ref bean="personManager" />
       </property>

</bean>

</beans>

12. 前台页面

    login.jsp

<%@ page language="java" contentType="text/HTML;charset=GBK" pageEncoding="GBK"%>  

<%@ taglib prefix="s" uri="/struts-tags"%>  

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
<html>  
<head>  
      
</head>  
    
<body>  
    <center>  
        <s:form action="login" method="POST" namespace="/">  
            <s:textfield name="username" label="用户名" size="14"/>  
            <s:password name="password" label="密 码" size="14"/>  
            <s:submit label="提交" />  
        </s:form>  
    </center>  
</body>  
</html>
<%@ page language="java" contentType="text/HTML;charset=GBK" pageEncoding="GBK"%>

<%@ taglib prefix="s" uri="/struts-tags"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
   
</head>

<body>
    <center>
    <s:form action="login" method="POST" namespace="/">
       <s:textfield name="username" label="用户名" size="14"/>
       <s:password name="password" label="密 码" size="14"/>
       <s:submit label="提交" />
    </s:form>
    </center>
</body>
</html>



    error.jsp


<%@ page language="java" contentType="text/HTML;charset=GBK" pageEncoding="GBK"%>  

<%  
    out.println("输入用误,输入的信息为" + "</br>");  
    out.println("用户名: " + request.getParameter("username") + "</br>");  
    out.println("密&nbsp;&nbsp;码: " + request.getParameter("password"));  
%>
<%@ page language="java" contentType="text/HTML;charset=GBK" pageEncoding="GBK"%>

<%
out.println("输入用误,输入的信息为" + "</br>");
out.println("用户名: " + request.getParameter("username") + "</br>");
out.println("密&nbsp;&nbsp;码: " + request.getParameter("password"));
%>


   result.jsp

<%@ page language="java" contentType="text/HTML;charset=GBK" pageEncoding="GBK"%>  

<%  
    out.println("用户名是: " + request.getParameter("username") + "</br>");  
    out.println("密&nbsp;&nbsp;码是: " + request.getParameter("password"));  

评论

1 楼 EdenWang 2010-07-22  

为什么我执行后显示的错误时空指针呢？？？？