S2SH使用Action封装json

S2SH使用Action封装json

因为今天刚学习了在Struts2-Action类中完成json格式数据封装，所以简单记录一下。

1. 把json相关的jar放到项目的lib下面

2. 编写Action类 命名为JsonAction

2.1第一种实现方式

public class JsonAction {
	private UserService userService = null;
	private List<User> userList = null;
	public String execute(){
		userList  = userService.getAllUsers();
		return "success";
	}
	public UserService getUserService() {
		return userService;
	}
	public void setUserService(UserService userService) {
		this.userService = userService;
	}
	public List<User> getUserList() {
		return userList;
	}
	public void setUserList(List<User> userList) {
		this.userList = userList;
	}
}

2.2第二种实现方式：

public class JsonAction {
	private UserService userService = null;
	public String execute(){
		List<User> userList  = userService.getAllUsers();
		ActionContext.getContext().put("userList", userList);
		return "success";
	}
	public UserService getUserService() {
		return userService;
	}
	public void setUserService(UserService userService) {
		this.userService = userService;
	}
}

2.3第三种实现方式

3. 编写structs.xml配置文件

<struts>
	<package name="cn.edu.hezeu.jsj.json"  extends="struts-default,json-default">
	 <action name ="jsonAction" class="jsonAction" method="execute">
	      		<result name = "success" type="json">
	      			<param name="root">userList</param>
	      		</result>
	   </action>     	
	 </package>   
</struts>

4. 编写spring.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" 
	xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"	
    xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans   
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd   
    http://www.springframework.org/schema/context   
    http://www.springframework.org/schema/context/spring-context-3.2.xsd  
    http://www.springframework.org/schema/tx   
    http://www.springframework.org/schema/tx/spring-tx-3.2.xsd  
    http://www.springframework.org/schema/aop  
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd">
	<!-- 数据源的配置 -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
		<property name="url" value="jdbc:mysql://localhost:3306/s2sh"/>
		<property name="username" value="root"/>
		<property name="password" value="root"/>
		<property name="initialSize" value="2"/>
		<property name="maxActive" value="10"/>
		<property name="maxIdle" value="3"/>
		<property name="maxWait" value="1000"/>
	</bean>
	<!--定义Hibernate的sessionFactory  -->
	<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<!-- 依赖注入已配置好的数据源 -->
		<property name="dataSource" ref="dataSource"/>
		<!- 指定Hibernate的映射文件 -->
		<property name="mappingResources" >
			<list>
				<value>cn/edu/hezeu/jsj/json/action/s2sh.hbm.xml</value>
			</list>
		</property>
		<!-- 设置Hibernate的属性 -->
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>  
	            <prop key="hibernate.hbm2ddl.auto">update</prop>  
	            <prop key="hibernate.show_sql">true</prop>  
	            <prop key="hibernate.format_sql">true</prop>  
			</props>
		</property>
	</bean>
	<!-- 事务管理器的配置 -->
	<bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory"/>
	</bean>
	<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
		<property name="sessionFactory" ref="sessionFactory"/>
	</bean>
	<bean id="userDao" class="cn.edu.hezeu.jsj.ch09.spring.hibernate.struts.UserDaoImpl">
		<property name="hibernateTemplate" ref="hibernateTemplate"></property>
	</bean>
	<bean id="userService" class="cn.edu.hezeu.jsj.ch09.spring.hibernate.struts.UserServiceImpl">
		<property name="userDao" ref="userDao"></property>
	</bean>
	<!-- json -->
	<bean id="jsonAction" class="cn.edu.hezeu.jsj.json.action.JsonAction">
		<property name="userService" ref="userService"></property>
	</bean>
</beans>

5. 编写hibernate.hbm.xml

这里是根据数据库的表和User类来配置的 ，配置文件命名一般是类名.hbm.xml，User类在这里省略，

  <hibernate-mapping package="cn.edu.hezeu.jsj.ch09.spring.hibernate.struts">
  	<class name="User" table="tab_user">
  		<id name="id" column="id">
			<generator class="native"/>
		</id>
		<property name="username" column="username" type="string" not-null="true"/>
		<property name="password" column="password" type="string" not-null="true"/>
		<property name="realName" column="realName" type="string" not-null="true"/>
		<property name="age" column="age" type="int" not-null="false"/>
		<property name="regDate" column="regDate" type="date" not-null="false"/>
  	</class>
  </hibernate-mapping>

5. 编写service层接口和实现类，以及dao层接口和实现类，此处省略。以及HibernateUtils