BlogJava-自由飞翔-随笔分类-springhttp://www.blogjava.net/GavinMiao/category/49316.html我在仰望，java之上zh-cnFri, 06 Apr 2012 12:41:40 GMTFri, 06 Apr 2012 12:41:40 GMT60ssh集成中session的管理（转载）http://www.blogjava.net/GavinMiao/archive/2012/03/23/372550.htmlGavinMiaoGavinMiaoFri, 23 Mar 2012 07:33:00 GMThttp://www.blogjava.net/GavinMiao/archive/2012/03/23/372550.htmlhttp://www.blogjava.net/GavinMiao/comments/372550.htmlhttp://www.blogjava.net/GavinMiao/archive/2012/03/23/372550.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/372550.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/372550.html阅读全文

GavinMiao 2012-03-23 15:33 发表评论
]]>spring2.0学习笔记http://www.blogjava.net/GavinMiao/archive/2012/03/22/372484.htmlGavinMiaoGavinMiaoThu, 22 Mar 2012 09:52:00 GMThttp://www.blogjava.net/GavinMiao/archive/2012/03/22/372484.htmlhttp://www.blogjava.net/GavinMiao/comments/372484.htmlhttp://www.blogjava.net/GavinMiao/archive/2012/03/22/372484.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/372484.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/372484.html<bean>
    <property name="">
        <ref bean="bean的name或id"/>
    </property>
    <property name="">
        <!--内部bean-->
        <bean></bean>
    </property>
    <property name="">
        <ref local="只能是同一文件的bean的id"/>
    </property>
    <!--idref元素用来引用其它bean的id，spring会验证id是否存在-->
    <property name="">
        <idref bean=""/>
    </property>
    <!--idref元素的local属性用来引用其它bean的id，spring会验证id是否存在，并且验证与引用的bean是否在同一文件-->
    <property name="">
        <idref local=""/>
    </property>
    <property name="">
        <value></value>
    </property>
    <property name="" ref=""/>
    <property name="" value=""/>
    <property name="">
        <null/>
    </property>
    <property name="">
            <props>
                <prop key=""></prop>
                 <prop key=""></prop>
            </props>
    </property>

    <property name="">
        <list>
            <value></value>
            <ref bean=""/>    
        </list>
    </property>

    <property name="">
        <set>
            <value></value>
            <ref bean=""/>    
        </set>
    </property>

    <property name="">
        <map>
            <entry>
                <key>
                    <value></value>
                </key>
                <value></value>
            </entry>
            <entry key="" value=""/><!--推荐-->
            <entry key="">
                <value>
                </value>
            </entry>
            <entry key-ref="" value-ref=""/>
            <entry>
                <key>
                    <value></value>
                </key>
                <ref bean=""/>
            </entry>
        </map>
    </property>
</bean>
二、contructor DI：
<bean>
    <constructor-arg>
        <ref bean=""/>
    </constructor-arg>
    <constructor-arg ref="bean的name或id"/>
    <constructor-arg value=""/>
    <constructor-arg type="" value=""/>
    <constructor-arg index="" value=""/><!--首选-->
</bean>


GavinMiao 2012-03-22 17:52 发表评论
]]>spring1.1学习笔记http://www.blogjava.net/GavinMiao/archive/2012/03/21/372386.htmlGavinMiaoGavinMiaoWed, 21 Mar 2012 09:34:00 GMThttp://www.blogjava.net/GavinMiao/archive/2012/03/21/372386.htmlhttp://www.blogjava.net/GavinMiao/comments/372386.htmlhttp://www.blogjava.net/GavinMiao/archive/2012/03/21/372386.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/372386.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/372386.html阅读全文

GavinMiao 2012-03-21 17:34 发表评论
]]>spring2.5新特性http://www.blogjava.net/GavinMiao/archive/2012/03/20/372300.htmlGavinMiaoGavinMiaoTue, 20 Mar 2012 09:57:00 GMThttp://www.blogjava.net/GavinMiao/archive/2012/03/20/372300.htmlhttp://www.blogjava.net/GavinMiao/comments/372300.htmlhttp://www.blogjava.net/GavinMiao/archive/2012/03/20/372300.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/372300.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/372300.html2.完全支持Java EE 5
3.spring2.5提供了完整的annotation集合：@Autowired，以及对JSR-250注解@Resource，@PostConstruct，@PreDestroy
4.在classpath中自动搜索带有annotation的组件。
5.spring2.5加入了对bean（...）pointcut元素的支持，在spring定义的bean命名中对指定的命名进行匹配
6.在spring应用中使用AspectJ加载时织入context：load-time-weaver
7.增加，通过context：load-time-weaver和tx：annotation-driven mode="aspectj"联合使用的注解驱动的事务管理
8.对JPA，升级到支持Open JPA1.0
9.2.5显著的扩充了SimpleJdbcTemplate的功能，引入了SimpleJdbcCall和SimpleJdbcInsert操作对象
10，web层，增加了基于注解的Controller
11.spring2.5引入了基于annotation的MVC编程模型，使用@RequestMapping、@RequestParam、@ModelAttribute等等
12.增加对tiles2的支持
13.引入了sping TestContext Framework，它提供了注解驱动的单元和集成测试支持

GavinMiao 2012-03-20 17:57 发表评论
]]>spring2.0新特性http://www.blogjava.net/GavinMiao/archive/2012/03/20/372297.htmlGavinMiaoGavinMiaoTue, 20 Mar 2012 09:37:00 GMThttp://www.blogjava.net/GavinMiao/archive/2012/03/20/372297.htmlhttp://www.blogjava.net/GavinMiao/comments/372297.htmlhttp://www.blogjava.net/GavinMiao/archive/2012/03/20/372297.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/372297.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/372297.html1.
引入request scope、session scope和可自定义的scope（hooks）
2.
引入了XML 
Schema的namespace,
简化了配置，包括了对bean属性的各种简化，AOP配置的简化，事务配置的简化，JNDI配置的简化等方面
3.spring2.0集成了AspectJ切入点（pointcut）语言和@AspectJ切面（aspect）声明类型
4.支持@AspectJ注解定义切面
5.提供了JPA的抽象层
6.对于JMS，spring2.0提供异步接受消息
7.对于jdbc，增加了NamedParameterJdbcTemplate、SimpleJdbcTemplate
8.对java1.5的支持，结合AspectJ使用@Transactional、使用AspectJ来为domain object进行依赖注入、@AspectJ、@Required、SimpleJdbcTemplate



GavinMiao 2012-03-20 17:37 发表评论
]]>spring2.0整合struts1(转载)http://www.blogjava.net/GavinMiao/archive/2012/03/16/372014.htmlGavinMiaoGavinMiaoFri, 16 Mar 2012 02:14:00 GMThttp://www.blogjava.net/GavinMiao/archive/2012/03/16/372014.htmlhttp://www.blogjava.net/GavinMiao/comments/372014.htmlhttp://www.blogjava.net/GavinMiao/archive/2012/03/16/372014.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/372014.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/372014.html阅读全文

GavinMiao 2012-03-16 10:14 发表评论
]]>spring整合hibernate（annotation方式）http://www.blogjava.net/GavinMiao/archive/2012/03/15/371914.htmlGavinMiaoGavinMiaoThu, 15 Mar 2012 03:08:00 GMThttp://www.blogjava.net/GavinMiao/archive/2012/03/15/371914.htmlhttp://www.blogjava.net/GavinMiao/comments/371914.htmlhttp://www.blogjava.net/GavinMiao/archive/2012/03/15/371914.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/371914.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/371914.html阅读全文

GavinMiao 2012-03-15 11:08 发表评论
]]>spring整合hibernatehttp://www.blogjava.net/GavinMiao/archive/2012/03/14/371878.htmlGavinMiaoGavinMiaoWed, 14 Mar 2012 09:42:00 GMThttp://www.blogjava.net/GavinMiao/archive/2012/03/14/371878.htmlhttp://www.blogjava.net/GavinMiao/comments/371878.htmlhttp://www.blogjava.net/GavinMiao/archive/2012/03/14/371878.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/371878.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/371878.html阅读全文

GavinMiao 2012-03-14 17:42 发表评论
]]>异常积累： nested exception is org.hibernate.SessionException: Session is closed解决方案http://www.blogjava.net/GavinMiao/archive/2011/10/21/361707.htmlGavinMiaoGavinMiaoFri, 21 Oct 2011 03:20:00 GMThttp://www.blogjava.net/GavinMiao/archive/2011/10/21/361707.htmlhttp://www.blogjava.net/GavinMiao/comments/361707.htmlhttp://www.blogjava.net/GavinMiao/archive/2011/10/21/361707.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/361707.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/361707.htmlhttp://blog.csdn.net/xiangsuixinsheng/article/details/6451752
这种方式获得的session在方法执行结束之后不会自动关闭连接,也就是说我们必须通过session.close()或者releaseSession(session)来手动进行关闭,否则会造成内存泄露或者连接耗尽等问题。手动关闭: 

之后，如果对某方法进行事务控制，那么spring框架会自动为我们关闭session，此种情况(session.close())下再执行上述代码，会抛出如下异常:org.springframework.orm.hibernate3.HibernateSystemException:
 Session is closed; nested exception is org.hibernate.SessionException: Session is closed 
提示session已经关闭。但是如果在代码中通过releaseSession(session)的方法来关闭session，则不会抛出异常。


GavinMiao 2011-10-21 11:20 发表评论
]]>spring事务--注解--片段http://www.blogjava.net/GavinMiao/archive/2011/10/21/361687.htmlGavinMiaoGavinMiaoThu, 20 Oct 2011 17:07:00 GMThttp://www.blogjava.net/GavinMiao/archive/2011/10/21/361687.htmlhttp://www.blogjava.net/GavinMiao/comments/361687.htmlhttp://www.blogjava.net/GavinMiao/archive/2011/10/21/361687.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/361687.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/361687.html阅读全文

GavinMiao 2011-10-21 01:07 发表评论
]]>spring2.5reference笔记http://www.blogjava.net/GavinMiao/archive/2011/08/31/357634.htmlGavinMiaoGavinMiaoWed, 31 Aug 2011 05:26:00 GMThttp://www.blogjava.net/GavinMiao/archive/2011/08/31/357634.htmlhttp://www.blogjava.net/GavinMiao/comments/357634.htmlhttp://www.blogjava.net/GavinMiao/archive/2011/08/31/357634.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/357634.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/357634.html阅读全文

GavinMiao 2011-08-31 13:26 发表评论
]]>spring注解http://www.blogjava.net/GavinMiao/archive/2011/08/30/357569.htmlGavinMiaoGavinMiaoTue, 30 Aug 2011 06:44:00 GMThttp://www.blogjava.net/GavinMiao/archive/2011/08/30/357569.htmlhttp://www.blogjava.net/GavinMiao/comments/357569.htmlhttp://www.blogjava.net/GavinMiao/archive/2011/08/30/357569.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/357569.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/357569.html阅读全文

GavinMiao 2011-08-30 14:44 发表评论
]]>spring面试题http://www.blogjava.net/GavinMiao/archive/2011/08/29/357463.htmlGavinMiaoGavinMiaoSun, 28 Aug 2011 16:38:00 GMThttp://www.blogjava.net/GavinMiao/archive/2011/08/29/357463.htmlhttp://www.blogjava.net/GavinMiao/comments/357463.htmlhttp://www.blogjava.net/GavinMiao/archive/2011/08/29/357463.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/357463.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/357463.html阅读全文

GavinMiao 2011-08-29 00:38 发表评论
]]>spring的singleton和prototypehttp://www.blogjava.net/GavinMiao/archive/2011/08/10/356257.htmlGavinMiaoGavinMiaoWed, 10 Aug 2011 09:31:00 GMThttp://www.blogjava.net/GavinMiao/archive/2011/08/10/356257.htmlhttp://www.blogjava.net/GavinMiao/comments/356257.htmlhttp://www.blogjava.net/GavinMiao/archive/2011/08/10/356257.html#Feedback0http://www.blogjava.net/GavinMiao/comments/commentRss/356257.htmlhttp://www.blogjava.net/GavinMiao/services/trackbacks/356257.html就这问题参考网上资料，总结一下，以备日后用。

原文地址：作者：macg

  • singleton---单例模式


单例模式,在spring 中其实是scope(作用范围)参数的缺省设定值
每个bean定义只生成一个对象实例,每次getBean请求获得的都是此实例

  • 单例模式分为饿汉模式和懒汉模式
饿汉模式
spring singleton的缺省是饿汉模式:启动容器时(即实例化容器时),为所有spring配置文件中定义的bean都生成一个实例
懒汉模式
在第一个请求时才生成一个实例,以后的请求都调用这个实例
spring singleton设置为懒汉模式:

<beans
default-lazy-init="true">


  • 另一种和singleton对应的scope值---prototype多实例模式
调用getBean时,就new一个新实例

  • singleton和prototype的比较
singleton
xml配置文件:
<bean id="dvdTypeDAO" class="com.machome.hibernate.impl.DvdTypeDAOImpl" />   
测试代码:
        ctx = new ClassPathXmlApplicationContext("spring-hibernate-mysql.xml");
        DvdTypeDAO tDao1 = (DvdTypeDAO)ctx.getBean("dvdTypeDAO");
        DvdTypeDAO tDao2 = (DvdTypeDAO)ctx.getBean("dvdTypeDAO");
运行:        
true
com.machome.hibernate.impl.DvdTypeDAOImpl@15b0333
com.machome.hibernate.impl.DvdTypeDAOImpl@15b0333

说明前后两次getBean()获得的是同一实例,说明spring缺省是单例

prototype
<bean id="dvdTypeDAO" class="com.machome.hibernate.impl.DvdTypeDAOImpl" scope="prototype" />
 
执行同样的测试代码
运行:
false
com.machome.hibernate.impl.DvdTypeDAOImpl@afae4a
com.machome.hibernate.impl.DvdTypeDAOImpl@1db9852
说明scope="prototype"后,每次getBean()的都是不同的新实例






GavinMiao 2011-08-10 17:31 发表评论
]]>