SSH下使用Spring注解自动注入bean

最新推荐文章于 2024-09-09 15:28:04 发布
最新推荐文章于 2024-09-09 15:28:04 发布
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文章标签： 运维 java 数据库
本文介绍在SSH框架中如何使用Spring注解进行集成与应用，包括导入相关包、配置Spring上下文、定义bean、实现事务管理及通过注解自动注入bean，并通过实际例子展示整合过程。

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Spring注解的使用方法详见：http://www.ibm.com/developerworks/cn/java/j-lo-spring25-ioc/，这里在SSH框架下做一个例子。

首先导入相关包：spring-beans-3.0.4.RELEASE.jar（org.springframework.beans.factory.annotation.Autowired用来注入bean）、spring-context-3.0.4.RELEASE.jar（org.springframework.stereotype.Componet 、Service、Repository等用来定义bean）。

其次需要添加相关配置：applicationContext.xml

[xhtml] view plain copy print ?
  1. <?xmlversion="1.0"encoding="UTF-8"?>
  2. <beansxmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3. xmlns:jee="http://www.springframework.org/schema/jee"xmlns:tx="http://www.springframework.org/schema/tx"
  4. xmlns:context="http://www.springframework.org/schema/context"
  5. xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx-3.0.xsdhttp://www.springframework.org/schema/jeehttp://www.springframework.org/schema/jee/spring-jee-3.0.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd">
  7. <description>Spring公共配置</description>
  9. <!--配置数据源-->
  10. <beanid="dataSource"class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close">
  11. <propertyname="driverClassName"value="oracle.jdbc.driver.OracleDriver"/>
  12. <propertyname="url"value="jdbc:oracle:thin:@127.0.0.1:1521:cui"/>
  13. <propertyname="username"value="cui"/>
  14. <propertyname="password"value="cui"/>
  15. </bean>
  17. <!--配置sessionFactory-->
  18. <beanid="sessionFactory"class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
  19. <propertyname="dataSource"ref="dataSource"/>
  20. <propertyname="hibernateProperties">
  21. <props>
  22. <propkey="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
  23. <propkey="hibernate.show_sql">true</prop>
  24. </props>
  25. </property>
  26. <propertyname="packagesToScan">
  27. <list>
  28. <value>com.entity</value>
  29. </list>
  30. </property>
  31. </bean>
  33. <!--事务管理-->
  34. <beanid="transactionManager"class="org.springframework.orm.hibernate3.HibernateTransactionManager">
  35. <propertyname="sessionFactory"ref="sessionFactory"></property>
  36. </bean>
  38. <!--使用annotation自动注入bean,并启动相关处理注解的进程-->
  39. <context:component-scanbase-package="com">
  40. <context:include-filtertype="regex"expression="com/.dao.*"/>
  41. <!--正则表达式必须格式正确，否则无效。以下是无效的示例
  42. <context:exclude-filtertype="regex"expression="/.service/..*"/>
  43. <context:exclude-filtertype="regex"expression="com/.service*"/>
  44. <context:exclude-filtertype="regex"expression=".service*"/>
  45. -->
  46. <!--正确格式:从base-package开始
  47. <context:exclude-filtertype="regex"expression="com/.service.*"/>
  48. <context:exclude-filtertype="regex"expression="com/.service/..*"/>
  49. -->
  50. </context:component-scan>
  52. </beans>
<?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:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <description>Spring公共配置 </description> <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/> <property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:cui"/> <property name="username" value="cui"/> <property name="password" value="cui"/> </bean> <!-- 配置sessionFactory --> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop> <prop key="hibernate.show_sql">true</prop> </props> </property> <property name="packagesToScan"> <list> <value>com.entity</value> </list> </property> </bean> <!-- 事务管理 --> <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 使用annotation自动注入bean,并启动相关处理注解的进程 --> <context:component-scan base-package="com"> <context:include-filter type="regex" expression="com/.dao.*"/> <!-- 正则表达式必须格式正确，否则无效。以下是无效的示例 <context:exclude-filter type="regex" expression="/.service/..*"/> <context:exclude-filter type="regex" expression="com/.service*"/> <context:exclude-filter type="regex" expression=".service*"/> --> <!-- 正确格式:从base-package开始 <context:exclude-filter type="regex" expression="com/.service.*"/> <context:exclude-filter type="regex" expression="com/.service/..*"/> --> </context:component-scan> </beans>

web.xml

[c-sharp] view plain copy print ?
  1. <?xmlversion="1.0"encoding="UTF-8"?>
  2. <web-appid="WebApp_ID"version="2.4"xmlns="http://java.sun.com/xml/ns/j2ee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://java.sun.com/xml/ns/j2eehttp://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  3. <display-name>mytest</display-name>
  4. <!--指定spring配置文件的位置-->
  5. <context-param>
  6. <param-name>contextConfigLocation</param-name>
  7. <param-value>classpath*:/applicationContext.xml</param-value>
  8. </context-param>
  10. <!--Struts2-->
  11. <filter>
  12. <filter-name>struts2</filter-name>
  13. <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
  14. <init-param>
  15. <param-name>actionPackages</param-name>
  16. <param-value>com.action</param-value>
  17. </init-param>
  18. </filter>
  20. <filter-mapping>
  21. <filter-name>struts2</filter-name>
  22. <url-pattern>/*</url-pattern>
  23. </filter-mapping>
  25. <!--自动加载applicationContext-->
  26. <listener>
  27. <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  28. </listener>
  29. </web-app>
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>mytest</display-name> <!-- 指定spring配置文件的位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:/applicationContext.xml</param-value> </context-param> <!-- Struts 2 --> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> <init-param> <param-name>actionPackages</param-name> <param-value>com.action</param-value> </init-param> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 自动加载applicationContext --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app>

使用Hibernate JPA定义User类：

[c-sharp] view plain copy print ?
  1. packagecom.entity;
  3. importjavax.persistence.Column;
  4. importjavax.persistence.Entity;
  5. importjavax.persistence.GeneratedValue;
  6. importjavax.persistence.GenerationType;
  7. importjavax.persistence.Id;
  8. importjavax.persistence.Table;
  10. @Entity
  11. @Table(name="s_user")
  12. publicclassUser{
  14. privateLongid;
  15. privateStringusername;
  16. privateStringpassword;
  18. @Id
  19. @GeneratedValue(strategy=GenerationType.AUTO)
  20. publicLonggetId(){
  21. returnid;
  22. }
  24. publicvoidsetId(Longid){
  25. this.id=id;
  26. }
  28. @Column(name="name")
  29. publicStringgetUsername(){
  30. returnusername;
  31. }
  33. publicvoidsetUsername(Stringusername){
  34. this.username=username;
  35. }
  37. @Column(name="pwd")
  38. publicStringgetPassword(){
  39. returnpassword;
  40. }
  42. publicvoidsetPassword(Stringpassword){
  43. this.password=password;
  44. }
  46. }
package com.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name = "s_user") public class User { private Long id; private String username; private String password; @Id @GeneratedValue(strategy = GenerationType.AUTO) public Long getId() { return id; } public void setId(Long id) { this.id = id; } @Column(name = "name") public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } @Column(name = "pwd") public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }

Dao层：

[c-sharp] view plain copy print ?
  1. packagecom.dao;
  3. importcom.entity.User;
  5. publicinterfaceUserDao{
  6. publicvoidsave(Useruser);
  7. }
  10. packagecom.dao.Impl;
  12. importorg.apache.commons.logging.Log;
  13. importorg.apache.commons.logging.LogFactory;
  14. importorg.hibernate.SessionFactory;
  15. importorg.springframework.beans.factory.annotation.Autowired;
  16. importorg.springframework.orm.hibernate3.HibernateTemplate;
  17. importorg.springframework.stereotype.Repository;
  19. importcom.dao.UserDao;
  20. importcom.entity.User;
  22. @Repository("userDao")
  23. publicclassUserDaoImplimplementsUserDao{
  25. privateHibernateTemplatetemplate;
  26. privateLoglog=LogFactory.getLog(UserDaoImpl.class);
  28. //使用构造子注入自动注入sessionFactory
  29. @Autowired
  30. publicUserDaoImpl(SessionFactorysessionFactory){
  31. this.template=newHibernateTemplate(sessionFactory);
  32. }
  34. publicvoidsave(Useruser){
  35. template.save(user);
  36. log.debug("saveuser:"+user.getUsername());
  37. }
  38. }
package com.dao; import com.entity.User; public interface UserDao { public void save(User user); } package com.dao.Impl; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.orm.hibernate3.HibernateTemplate; import org.springframework.stereotype.Repository; import com.dao.UserDao; import com.entity.User; @Repository("userDao") public class UserDaoImpl implements UserDao { private HibernateTemplate template; private Log log = LogFactory.getLog(UserDaoImpl.class); //使用构造子注入自动注入sessionFactory @Autowired public UserDaoImpl(SessionFactory sessionFactory) { this.template = new HibernateTemplate(sessionFactory); } public void save(User user) { template.save(user); log.debug("save user:" + user.getUsername()); } }

Service层：

[java] view plain copy print ?
  1. packagecom.service;
  2. importcom.entity.User;
  4. publicinterfaceUserManager{
  5. publicvoidadd(Useruser);
  6. }
  9. packagecom.service.Impl;
  11. importorg.apache.commons.logging.Log;
  12. importorg.apache.commons.logging.LogFactory;
  13. importorg.springframework.beans.factory.annotation.Autowired;
  14. importorg.springframework.stereotype.Service;
  16. importcom.dao.UserDao;
  17. importcom.entity.User;
  18. importcom.service.UserManager;
  20. @Service("userManager")
  21. publicclassUserManagerImplimplementsUserManager{
  23. //自动注入userDao，也可以使用@Resource
  24. @Autowired
  25. privateUserDaouserDao;
  26. privateLoglog=LogFactory.getLog(UserManagerImpl.class);
  28. publicvoidadd(Useruser){
  29. userDao.save(user);
  30. log.debug("addUser:"+user.getUsername());
  31. }
  32. }
package com.service; import com.entity.User; public interface UserManager { public void add(User user); } package com.service.Impl; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.dao.UserDao; import com.entity.User; import com.service.UserManager; @Service("userManager") public class UserManagerImpl implements UserManager { //自动注入userDao，也可以使用@Resource @Autowired private UserDao userDao; private Log log = LogFactory.getLog(UserManagerImpl.class); public void add(User user) { userDao.save(user); log.debug("add User:" + user.getUsername()); } }

Action：

[java] view plain copy print ?
  1. packagecom.action.convention;
  3. importorg.apache.struts2.convention.annotation.Result;
  4. importorg.springframework.beans.factory.annotation.Autowired;
  6. importcom.entity.User;
  7. importcom.opensymphony.xwork2.ActionSupport;
  8. importcom.service.UserManager;
  10. @Result(name="success",location="hello.jsp")
  11. publicclassUserActionextendsActionSupport{
  13. privatestaticfinallongserialVersionUID=1L;
  15. @Autowired
  16. privateUserManageruserManager;
  18. publicStringexecute(){
  19. Useruser=newUser();
  20. user.setUsername("cuihaiyang");
  21. user.setPassword("abcd");
  23. userManager.add(user);
  25. returnSUCCESS;
  26. }
  27. }
package com.action.convention; import org.apache.struts2.convention.annotation.Result; import org.springframework.beans.factory.annotation.Autowired; import com.entity.User; import com.opensymphony.xwork2.ActionSupport; import com.service.UserManager; @Result(name = "success", location = "hello.jsp") public class UserAction extends ActionSupport { private static final long serialVersionUID = 1L; @Autowired private UserManager userManager; public String execute() { User user = new User(); user.setUsername("cuihaiyang"); user.setPassword("abcd"); userManager.add(user); return SUCCESS; } }

调试信息如下：

Hibernate: select hibernate_sequence.nextval from dual
Hibernate: insert into s_user (pwd, name, id) values (?, ?, ?)
2011-03-10 19:44:25,296 [http-8080-1] DEBUG [com.dao.Impl.UserDaoImpl] - save user:cuihaiyang
2011-03-10 19:44:25,296 [http-8080-1] DEBUG [com.service.Impl.UserManagerImpl] - add User:cuihaiyang

Spring注解的使用方法详见：http://www.ibm.com/developerworks/cn/java/j-lo-spring25-ioc/，这里在SSH框架下做一个例子。

首先导入相关包：spring-beans-3.0.4.RELEASE.jar（org.springframework.beans.factory.annotation.Autowired用来注入bean）、spring-context-3.0.4.RELEASE.jar（org.springframework.stereotype.Componet 、Service、Repository等用来定义bean）。

其次需要添加相关配置：applicationContext.xml

[xhtml] view plain copy print ?
  1. <?xmlversion="1.0"encoding="UTF-8"?>
  2. <beansxmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3. xmlns:jee="http://www.springframework.org/schema/jee"xmlns:tx="http://www.springframework.org/schema/tx"
  4. xmlns:context="http://www.springframework.org/schema/context"
  5. xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx-3.0.xsdhttp://www.springframework.org/schema/jeehttp://www.springframework.org/schema/jee/spring-jee-3.0.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd">
  7. <description>Spring公共配置</description>
  9. <!--配置数据源-->
  10. <beanid="dataSource"class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close">
  11. <propertyname="driverClassName"value="oracle.jdbc.driver.OracleDriver"/>
  12. <propertyname="url"value="jdbc:oracle:thin:@127.0.0.1:1521:cui"/>
  13. <propertyname="username"value="cui"/>
  14. <propertyname="password"value="cui"/>
  15. </bean>
  17. <!--配置sessionFactory-->
  18. <beanid="sessionFactory"class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
  19. <propertyname="dataSource"ref="dataSource"/>
  20. <propertyname="hibernateProperties">
  21. <props>
  22. <propkey="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
  23. <propkey="hibernate.show_sql">true</prop>
  24. </props>
  25. </property>
  26. <propertyname="packagesToScan">
  27. <list>
  28. <value>com.entity</value>
  29. </list>
  30. </property>
  31. </bean>
  33. <!--事务管理-->
  34. <beanid="transactionManager"class="org.springframework.orm.hibernate3.HibernateTransactionManager">
  35. <propertyname="sessionFactory"ref="sessionFactory"></property>
  36. </bean>
  38. <!--使用annotation自动注入bean,并启动相关处理注解的进程-->
  39. <context:component-scanbase-package="com">
  40. <context:include-filtertype="regex"expression="com/.dao.*"/>
  41. <!--正则表达式必须格式正确，否则无效。以下是无效的示例
  42. <context:exclude-filtertype="regex"expression="/.service/..*"/>
  43. <context:exclude-filtertype="regex"expression="com/.service*"/>
  44. <context:exclude-filtertype="regex"expression=".service*"/>
  45. -->
  46. <!--正确格式:从base-package开始
  47. <context:exclude-filtertype="regex"expression="com/.service.*"/>
  48. <context:exclude-filtertype="regex"expression="com/.service/..*"/>
  49. -->
  50. </context:component-scan>
  52. </beans>
<?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:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <description>Spring公共配置 </description> <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/> <property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:cui"/> <property name="username" value="cui"/> <property name="password" value="cui"/> </bean> <!-- 配置sessionFactory --> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop> <prop key="hibernate.show_sql">true</prop> </props> </property> <property name="packagesToScan"> <list> <value>com.entity</value> </list> </property> </bean> <!-- 事务管理 --> <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 使用annotation自动注入bean,并启动相关处理注解的进程 --> <context:component-scan base-package="com"> <context:include-filter type="regex" expression="com/.dao.*"/> <!-- 正则表达式必须格式正确，否则无效。以下是无效的示例 <context:exclude-filter type="regex" expression="/.service/..*"/> <context:exclude-filter type="regex" expression="com/.service*"/> <context:exclude-filter type="regex" expression=".service*"/> --> <!-- 正确格式:从base-package开始 <context:exclude-filter type="regex" expression="com/.service.*"/> <context:exclude-filter type="regex" expression="com/.service/..*"/> --> </context:component-scan> </beans>

web.xml

[c-sharp] view plain copy print ?
  1. <?xmlversion="1.0"encoding="UTF-8"?>
  2. <web-appid="WebApp_ID"version="2.4"xmlns="http://java.sun.com/xml/ns/j2ee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://java.sun.com/xml/ns/j2eehttp://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  3. <display-name>mytest</display-name>
  4. <!--指定spring配置文件的位置-->
  5. <context-param>
  6. <param-name>contextConfigLocation</param-name>
  7. <param-value>classpath*:/applicationContext.xml</param-value>
  8. </context-param>
  10. <!--Struts2-->
  11. <filter>
  12. <filter-name>struts2</filter-name>
  13. <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
  14. <init-param>
  15. <param-name>actionPackages</param-name>
  16. <param-value>com.action</param-value>
  17. </init-param>
  18. </filter>
  20. <filter-mapping>
  21. <filter-name>struts2</filter-name>
  22. <url-pattern>/*</url-pattern>
  23. </filter-mapping>
  25. <!--自动加载applicationContext-->
  26. <listener>
  27. <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  28. </listener>
  29. </web-app>
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>mytest</display-name> <!-- 指定spring配置文件的位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:/applicationContext.xml</param-value> </context-param> <!-- Struts 2 --> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> <init-param> <param-name>actionPackages</param-name> <param-value>com.action</param-value> </init-param> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 自动加载applicationContext --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app>

使用Hibernate JPA定义User类：

[c-sharp] view plain copy print ?
  1. packagecom.entity;
  3. importjavax.persistence.Column;
  4. importjavax.persistence.Entity;
  5. importjavax.persistence.GeneratedValue;
  6. importjavax.persistence.GenerationType;
  7. importjavax.persistence.Id;
  8. importjavax.persistence.Table;
  10. @Entity
  11. @Table(name="s_user")
  12. publicclassUser{
  14. privateLongid;
  15. privateStringusername;
  16. privateStringpassword;
  18. @Id
  19. @GeneratedValue(strategy=GenerationType.AUTO)
  20. publicLonggetId(){
  21. returnid;
  22. }
  24. publicvoidsetId(Longid){
  25. this.id=id;
  26. }
  28. @Column(name="name")
  29. publicStringgetUsername(){
  30. returnusername;
  31. }
  33. publicvoidsetUsername(Stringusername){
  34. this.username=username;
  35. }
  37. @Column(name="pwd")
  38. publicStringgetPassword(){
  39. returnpassword;
  40. }
  42. publicvoidsetPassword(Stringpassword){
  43. this.password=password;
  44. }
  46. }
package com.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name = "s_user") public class User { private Long id; private String username; private String password; @Id @GeneratedValue(strategy = GenerationType.AUTO) public Long getId() { return id; } public void setId(Long id) { this.id = id; } @Column(name = "name") public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } @Column(name = "pwd") public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }

Dao层：

[c-sharp] view plain copy print ?
  1. packagecom.dao;
  3. importcom.entity.User;
  5. publicinterfaceUserDao{
  6. publicvoidsave(Useruser);
  7. }
  10. packagecom.dao.Impl;
  12. importorg.apache.commons.logging.Log;
  13. importorg.apache.commons.logging.LogFactory;
  14. importorg.hibernate.SessionFactory;
  15. importorg.springframework.beans.factory.annotation.Autowired;
  16. importorg.springframework.orm.hibernate3.HibernateTemplate;
  17. importorg.springframework.stereotype.Repository;
  19. importcom.dao.UserDao;
  20. importcom.entity.User;
  22. @Repository("userDao")
  23. publicclassUserDaoImplimplementsUserDao{
  25. privateHibernateTemplatetemplate;
  26. privateLoglog=LogFactory.getLog(UserDaoImpl.class);
  28. //使用构造子注入自动注入sessionFactory
  29. @Autowired
  30. publicUserDaoImpl(SessionFactorysessionFactory){
  31. this.template=newHibernateTemplate(sessionFactory);
  32. }
  34. publicvoidsave(Useruser){
  35. template.save(user);
  36. log.debug("saveuser:"+user.getUsername());
  37. }
  38. }
package com.dao; import com.entity.User; public interface UserDao { public void save(User user); } package com.dao.Impl; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.orm.hibernate3.HibernateTemplate; import org.springframework.stereotype.Repository; import com.dao.UserDao; import com.entity.User; @Repository("userDao") public class UserDaoImpl implements UserDao { private HibernateTemplate template; private Log log = LogFactory.getLog(UserDaoImpl.class); //使用构造子注入自动注入sessionFactory @Autowired public UserDaoImpl(SessionFactory sessionFactory) { this.template = new HibernateTemplate(sessionFactory); } public void save(User user) { template.save(user); log.debug("save user:" + user.getUsername()); } }

Service层：

[java] view plain copy print ?
  1. packagecom.service;
  2. importcom.entity.User;
  4. publicinterfaceUserManager{
  5. publicvoidadd(Useruser);
  6. }
  9. packagecom.service.Impl;
  11. importorg.apache.commons.logging.Log;
  12. importorg.apache.commons.logging.LogFactory;
  13. importorg.springframework.beans.factory.annotation.Autowired;
  14. importorg.springframework.stereotype.Service;
  16. importcom.dao.UserDao;
  17. importcom.entity.User;
  18. importcom.service.UserManager;
  20. @Service("userManager")
  21. publicclassUserManagerImplimplementsUserManager{
  23. //自动注入userDao，也可以使用@Resource
  24. @Autowired
  25. privateUserDaouserDao;
  26. privateLoglog=LogFactory.getLog(UserManagerImpl.class);
  28. publicvoidadd(Useruser){
  29. userDao.save(user);
  30. log.debug("addUser:"+user.getUsername());
  31. }
  32. }
package com.service; import com.entity.User; public interface UserManager { public void add(User user); } package com.service.Impl; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.dao.UserDao; import com.entity.User; import com.service.UserManager; @Service("userManager") public class UserManagerImpl implements UserManager { //自动注入userDao，也可以使用@Resource @Autowired private UserDao userDao; private Log log = LogFactory.getLog(UserManagerImpl.class); public void add(User user) { userDao.save(user); log.debug("add User:" + user.getUsername()); } }

Action：

[java] view plain copy print ?
  1. packagecom.action.convention;
  3. importorg.apache.struts2.convention.annotation.Result;
  4. importorg.springframework.beans.factory.annotation.Autowired;
  6. importcom.entity.User;
  7. importcom.opensymphony.xwork2.ActionSupport;
  8. importcom.service.UserManager;
  10. @Result(name="success",location="hello.jsp")
  11. publicclassUserActionextendsActionSupport{
  13. privatestaticfinallongserialVersionUID=1L;
  15. @Autowired
  16. privateUserManageruserManager;
  18. publicStringexecute(){
  19. Useruser=newUser();
  20. user.setUsername("cuihaiyang");
  21. user.setPassword("abcd");
  23. userManager.add(user);
  25. returnSUCCESS;
  26. }
  27. }
package com.action.convention; import org.apache.struts2.convention.annotation.Result; import org.springframework.beans.factory.annotation.Autowired; import com.entity.User; import com.opensymphony.xwork2.ActionSupport; import com.service.UserManager; @Result(name = "success", location = "hello.jsp") public class UserAction extends ActionSupport { private static final long serialVersionUID = 1L; @Autowired private UserManager userManager; public String execute() { User user = new User(); user.setUsername("cuihaiyang"); user.setPassword("abcd"); userManager.add(user); return SUCCESS; } }

调试信息如下：

Hibernate: select hibernate_sequence.nextval from dual
Hibernate: insert into s_user (pwd, name, id) values (?, ?, ?)
2011-03-10 19:44:25,296 [http-8080-1] DEBUG [com.dao.Impl.UserDaoImpl] - save user:cuihaiyang
2011-03-10 19:44:25,296 [http-8080-1] DEBUG [com.service.Impl.UserManagerImpl] - add User:cuihaiyang

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