struts2 sping2 hibernate3.2新手入门

拼搏现实的明天。 2022-05-10 15:22 459阅读 0赞

最近正在学习ssh的最新版本。由于一直没有用ssh做过东西，尤其是中间的spring，项目中用到的struts和hibernate，所以对于在中间层加上spring该如何处理，还存在一些困惑，这是我做的一个三者结合的例子，其主要目的是充分利用spring的ioc和hibernate3的annoation

1.struts2和spring的结合，以及如何把action纳入spring的管理

首先：工程中应加入struts2-spring-plugin-2.0.8.jar

其次：在web.xml中加入如下

<listener>  
  <listener-class>  
   org.springframework.web.context.ContextLoaderListener  
  </listener-class>  
</listener>

第三：在struts.xml和applicationContext.xml中的配置如下

<!DOCTYPE struts PUBLIC  
        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"  
        "[http://struts.apache.org/dtds/struts-2.0.dtd][http_struts.apache.org_dtds_struts-2.0.dtd]">  
<struts>  
    <include file="struts-default.xml"/>  
    <package name="com" extends="struts-default">  
        <**action name="Login" class="Login" method="getAllUserInfo">**  
            <result name="input">Login.jsp</result>  
            <result >userindex.jsp</result>  
        </action>  
    </package>  
     
</struts>

applicationContext.xml中（配置片段）

**<bean id="Login" class="com.web.action.Login" p:iuserinfo-ref="UserInfoImpl" scope ="prototype"/>**

注意”红色“字体部分，其中action中的class=“Login”要和<bean>中的id对应，action的属性mehtod如果没有制定的话，将默认调用struts中action中的execute方法，在struts2官方的faq中提到要把action纳入spring的管理还得添加<beans default-autowire="autodetect">(原因还不太清除)，由于strus2为每一个请求实例化一个action所以bean的scope要设成protype,默认为singleton

ok，struts2和spring已经结合到一起，剩下的就是根据项目需要"求精了"

2，spring和hibernate的结合hibernate3 aonotation

目前的例子只是演示如何集成二者，所以只是将hibernte的SessionFactory交由spring管理，其他的如（事务管理没有考虑很细致，全部在dao层控制）

如下applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>  
<beans xmlns="[http://www.springframework.org/schema/beans][http_www.springframework.org_schema_beans]"  
 xmlns:xsi="[http://www.w3.org/2001/XMLSchema-instance][http_www.w3.org_2001_XMLSchema-instance]"  
 xmlns:aop="[http://www.springframework.org/schema/aop][http_www.springframework.org_schema_aop]"  
 xmlns:tx="[http://www.springframework.org/schema/tx][http_www.springframework.org_schema_tx]"  
 xmlns:p="[http://www.springframework.org/schema/p][http_www.springframework.org_schema_p]"  
 xsi:schemaLocation="[http://www.springframework.org/schema/beans][http_www.springframework.org_schema_beans] [http://www.springframework.org/schema/beans/spring-beans-2.0.xsd][http_www.springframework.org_schema_beans_spring-beans-2.0.xsd]  
           [http://www.springframework.org/schema/aop][http_www.springframework.org_schema_aop] [http://www.springframework.org/schema/aop/spring-aop-2.0.xsd][http_www.springframework.org_schema_aop_spring-aop-2.0.xsd]  
           [http://www.springframework.org/schema/tx][http_www.springframework.org_schema_tx] [http://www.springframework.org/schema/tx/spring-tx-2.0.xsd][http_www.springframework.org_schema_tx_spring-tx-2.0.xsd]"  
 default-lazy-init="true" default-autowire="autodetect">  
   
 <bean id="dataSource"  
  class="org.springframework.jdbc.datasource.DriverManagerDataSource"  
  p:driverClassName="com.mysql.jdbc.Driver"  
  p:url="jdbc:mysql://localhost:3306/paulstudy" p:username="root"  
  p:password="1234" />

** <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.SQLServerDialect  
    </prop>  
    <prop key="hibernate.hbm2ddl.auto">none</prop>  
   </props>  
  </property>  
  <property name="annotatedClasses">  
   <list>  
    <value>com.model.UserInfo</value>  
   </list>  
  </property>  
  <property name="annotatedPackages">  
   <list>  
    <value>com.model</value>  
   </list>  
  </property>  
 </bean>**  
   
 <bean id="usermanager" class="com.dao.hibernate.UserManagerImpl">  
  <property name="dataSource">  
   <ref bean="sessionFactory" />  
  </property>  
 </bean>  
 <bean id="UserInfoImpl" class="com.business.service.UserInfoImpl"  
  p:iusermanager-ref="usermanager" />  
 <bean id="Login" class="com.web.action.Login"  
  p:iuserinfo-ref="UserInfoImpl" scope="prototype" />  
 <bean id="userinfo" class="com.UserInfo" p:userName="paul"  
  p:age="25" />

</beans>

通过以上实现了hibernate的零配置文件。如下domainobject

package com.model;

import javax.persistence.Column;//所在jar包是 persistence-api-1.0.jar  
import javax.persistence.GeneratedValue;  
import javax.persistence.Id;  
import javax.persistence.Table;  
import javax.persistence.Entity;  
import org.hibernate.annotations.AccessType;  
//import org.hibernate.annotations.Entity;  
import org.hibernate.annotations.GenericGenerator;

@Entity//此处声明必须用avax.persistence.Entity;而不能用 org.hibernate.annotations.Entity  
@Table(name = "userinfo")  
@AccessType("property")  
public class UserInfo \{

private String userId = "";

private String userName = "";

private String userSex = "";

private int userAge = 0;

@Id  
 @Column(name = "userid")  
 @GeneratedValue(generator = "system-uuid")  
 @GenericGenerator(name = "system-uuid", strategy = "uuid")  
 public String getUserId() \{  
  return userId;  
 \}

public void setUserId(String userId) \{  
  this.userId = userId;  
 \}

@Column(name = "username")  
 public String getUserName() \{  
  return userName;  
 \}

public void setUserName(String userName) \{  
  this.userName = userName;  
 \}

@Column(name = "usersex")  
 public String getUserSex() \{  
  return userSex;  
 \}

@Column(name = "userage")  
 public int getUserAge() \{  
  return userAge;  
 \}

public void setUserAge(int userAge) \{  
  this.userAge = userAge;  
 \}

public void setUserSex(String userSex) \{  
  this.userSex = userSex;  
 \}  
\}

ok。spring和hibernate的结合，hibernate的零配置已经搞定，很简单吧

学好。学精还需要时间啊！

[http_struts.apache.org_dtds_struts-2.0.dtd]: http://struts.apache.org/dtds/struts-2.0.dtd
[http_www.springframework.org_schema_beans]: http://www.springframework.org/schema/beans
[http_www.w3.org_2001_XMLSchema-instance]: http://www.w3.org/2001/XMLSchema-instance
[http_www.springframework.org_schema_aop]: http://www.springframework.org/schema/aop
[http_www.springframework.org_schema_tx]: http://www.springframework.org/schema/tx
[http_www.springframework.org_schema_p]: http://www.springframework.org/schema/p
[http_www.springframework.org_schema_beans_spring-beans-2.0.xsd]: http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
[http_www.springframework.org_schema_aop_spring-aop-2.0.xsd]: http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
[http_www.springframework.org_schema_tx_spring-tx-2.0.xsd]: http://www.springframework.org/schema/tx/spring-tx-2.0.xsd