??xml version="1.0" encoding="utf-8" standalone="yes"?>日本黑人久久,亚洲精品国产精品乱码不99按摩 ,国产精品一区二区久久不卡http://www.aygfsteel.com/rkind/category/5679.html<font size=5 align=right>知h者智 自知者明 Fighting!!</font>zh-cnFri, 02 Mar 2007 07:18:20 GMTFri, 02 Mar 2007 07:18:20 GMT60Spring ~程入门十大问题解答 ?/title><link>http://www.aygfsteel.com/rkind/archive/2005/12/06/22750.html</link><dc:creator>rkind</dc:creator><author>rkind</author><pubDate>Tue, 06 Dec 2005 09:54:00 GMT</pubDate><guid>http://www.aygfsteel.com/rkind/archive/2005/12/06/22750.html</guid><wfw:comment>http://www.aygfsteel.com/rkind/comments/22750.html</wfw:comment><comments>http://www.aygfsteel.com/rkind/archive/2005/12/06/22750.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/rkind/comments/commentRss/22750.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/rkind/services/trackbacks/22750.html</trackback:ping><description><![CDATA[<FONT size=4>1、如何学习SpringQ?BR><BR>　　你可以通过下列途径学习springQ?BR><BR>　　(1) spring下蝲包中doc目录下的MVC-step-by-step和sample目录下的例子都是比较好的spring开发的例子?<BR><BR>　　(2) AppFuse集成了目前最行的几个开源轻量框架或者工?Ant,XDoclet,Spring,Hibernate(iBATIS),JUnit,Cactus,StrutsTestCase,Canoo's WebTest,Struts Menu,Display Tag Library,OSCache,JSTL,Struts ?BR><BR>　　你可以通过AppFuse源代码来学习spring?BR><BR>AppFuse|站Qhttp://raibledesigns.com/wiki/Wiki.jsp?page=AppFuse<BR><BR>　　(3)Spring 开发指?夏昕)Qhttp://www.xiaxin.net/Spring_Dev_Guide.rarQ?BR><BR>　　一本spring的入门书c?里面介绍了反转控制和依赖注射的概念，以及spring的bean理Qspring的MVCQspring和hibernteQiBatis的结合?BR><BR>　　(4) spring学习的中文论?BR><BR>　　SpringFramework中文论坛(http://spring.jactiongroup.net)<BR><BR>　　Java视线论坛(http://forum.javaeye.com)的spring栏目<BR><BR>　　2、利用Spring框架~程Qconsole打印出log4j:WARN Please initialize the log4j system properlyQ?BR><BR>　　说明你的log4j.properties没有配置。请把log4j.properties攑ֈ工程的classpath中，eclipse的classpath为bin目录Q由于编译后src目录下的文g会拷贝到bin目录下，所以你可以把log4j.properties攑ֈsrc目录下?BR><BR>　　q里l出一个log4j.properties的例子：<BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>log4j.rootLogger=DEBUG,stdout<BR>log4j.appender.stdout=org.apache.log4j.ConsoleAppender<BR>log4j.appender.stdout.layout=org.apache.log4j.PatternLayout<BR>log4j.appender.stdout.layout.ConversionPattern=%d %5p (%F:%L) - %m%n</FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　3、出?java.lang.NoClassDefFoundError?<BR><BR>　　一般情况下是由于你没有把必要的jar包放到lib中?BR><BR>　　比如你要采用spring和hibernateQ带事务支持的话Q，你除了spring.jar外还需要hibernat.jar、aopalliance.jar、cglig.jar、jakarta-commons下的几个jar包?BR><BR>http://www.springframework.org/download.html下蝲spring开发包Q提供两Uzip?BR>spring-framework-1.1.3-with-dependencies.zip和spring-framework-1.1.3.zipQ我你下载spring-framework-1.1.3-with-dependencies.zip。这个zip解压~后比后者多一个lib目录Q其中有hibernate、j2ee、dom4j、aopalliance、jakarta-commons{常用包?BR><BR>　　4、java.io.FileNotFoundException: Could not open class path resource [....hbm.xml],提示找不到xml文gQ?BR><BR>　　原因一般有两个Q?BR><BR>　　(1)该xml文g没有在classpath中?<BR><BR>　　(2)applicationContext-hibernate.xml中的xml名字没有带包名。比如：<BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>Qbean id="sessionFactory" class="org.springframework.orm.hibernate.LocalSessionFactoryBean"Q?BR>Qproperty name="dataSource"Q＜ref bean="dataSource"/Q＜/propertyQ?BR>Qproperty name="mappingResources"Q?BR>　QlistQ?BR>　　QvalueQUser.hbm.xmlQ?valueQ?BR>　　错，改ؓQ?<BR>　　QvalueQcom/yz/spring/domain/User.hbm.xmlQ?valueQ?BR>　Q?listQ?BR>Q?propertyQ?BR>Qproperty name="hibernateProperties"Q?BR>QpropsQ?<BR>　Qprop key="hibernate.dialect"Q?net.sf.hibernate.dialect.MySQLDialect Q?propQ?<BR>　Qprop key="hibernate.show_sql"QtrueQ?propQ?<BR>Q?propsQ?<BR>Q?propertyQ?BR>Q?beanQ?/FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　5、org.springframework.beans.NotWritablePropertyException: Invalid property 'postDao' of bean classQ?BR><BR>　　出现异常的原因是在application-xxx.xml中property name的错误?BR><BR>　　Qproperty name="...."Q?中name的名字是与bean的setҎ相关的，而且要注意大写?BR><BR>　　比如<BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>public class PostManageImpl extends BaseManage implements PostManage {<BR>　private PostDAO dao = null;<BR>　public void setPostDAO(PostDAO postDAO){<BR>　　this.dao = postDAO;<BR>　}<BR>}</FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　那么xml的定义应该是Q?BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>Qbean id="postManage" parent="txProxyTemplate"Q?BR>Qproperty name="target"Q?BR>　Qbean class="com.yz.spring.service.implement.PostManageImpl"Q?BR>　　Qproperty name="postDAO"Q＜ref bean="postDAO"/Q＜/propertyQ??BR>　　Qproperty name="dao"Q＜ref bean="postDAO"/Q＜/propertyQ??BR>　Q?beanQ?BR>Q?propertyQ?BR>Q?beanQ?/FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　6、Spring中如何实C务管理？<BR><BR>　　首先Q如果用mysqlQ确定mysql为InnoDBcd?BR><BR>　　事务理的控制应该放到商业逻辑层。你可以写个处理商业逻辑的JavaBeanQ在该JavaBean中调用DAOQ然后把该Bean的方法纳入spring的事务管理?BR><BR>　　比如Qxml文g定义如下Q?BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>Qbean id="txProxyTemplate" abstract="true"<BR>class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"Q?BR>Qproperty name="transactionManager"Q＜ref bean="transactionManager"/Q＜/propertyQ?BR>Qproperty name="transactionAttributes"Q?BR>QpropsQ?BR>Qprop key="save*"QPROPAGATION_REQUIREDQ?propQ?BR>Qprop key="remove*"QPROPAGATION_REQUIREDQ?propQ?BR>Qprop key="*"QPROPAGATION_REQUIREDQ?propQ?BR>Q?propsQ?BR>Q?propertyQ?BR>Q?beanQ?BR><BR>Qbean id="userManage" parent="txProxyTemplate"Q?BR>　Qproperty name="target"Q?BR>　　Qbean class="com.yz.spring.service.implement.UserManageImpl"Q?BR>　　　Qproperty name="userDAO"Q＜ref bean="userDAO"/Q＜/propertyQ?BR>　　Q?beanQ?BR>　Q?propertyQ?BR>Q?beanQ?/FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　com.yz.spring.service.implement.UserManageImpl是我们的实现商业逻辑的JavaBean。我们通过parent元素声明其事务支持?BR><BR>　　7、如何管理Spring框架下更多的JavaBeanQ?BR><BR>　　JavaBean多Qspring配置文gp大，q样不易l护。ؓ了配置清晰Q我们可以将JavaBean分类理Q放在不同的配置文g中?应用启动时将所有的xml同时加蝲?BR><BR>　　比如Q?BR><BR>　　DAO层的JavaBean攑ֈapplicationContext-hibernate.xml中，商业逻辑层的JavaBean攑ֈapplicationContext-service.xml中。然后启动类中调用以下代码蝲入所有的ApplicationContext?BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>String[] paths = {"com/yz/spring/dao/hibernate/applicationContext-hibernate.xml",<BR>"com/yz/spring/service/applicationContext-service.xml"};<BR>ctx = new ClassPathXmlApplicationContext(paths);</FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　8、web应用中如何加载ApplicationContextQ?BR><BR>　　可以通过定义web.xmlQ由web容器自动加蝲?BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>QservletQ?BR>Qservlet-nameQcontextQ?servlet-nameQ?BR>Qservlet-classQorg.springframework.web.context.ContextLoaderServletQ?servlet-classQ?BR>Qload-on-startupQ?Q?load-on-startupQ?BR>Q?servletQ?BR><BR>Qcontext-paramQ?BR>Qparam-nameQcontextConfigLocationQ?param-nameQ?BR>Qparam-valueQ?WEB-INF/applicationContext-hibernate.xmlQ?param-valueQ?BR>Qparam-valueQ?WEB-INF/applicationContext-service.xmlQ?param-valueQ?BR>Q?context-paramQ?/FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　9、在spring中如何配|的log4j?<BR><BR>　　在web.xml中加入以下代码即可?BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>Qcontext-paramQ?BR>Qparam-nameQlog4jConfigLocationQ?param-nameQ?BR>Qparam-valueQ?WEB-INF/log4j.propertiesQ?param-valueQ?BR>Q?context-paramQ?/FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　10、Spring框架入门的编E问题解决了Q我该如何更深地领会Spring框架呢？<BR><BR>　　q两本书你该ȝ看。这两本书是由Spring的作者Rod Johnson~写的?BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>Expert One on one J2EE Design and Development<BR>Expert One on one J2EE Development Without EJB</FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　你也该看看martinfowler的Inversion of Control Containers and the Dependency Injection pattern?BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>http://www.martinfowler.com/articles/injection.html</FONT></TD></TR></TBODY></TABLE><FONT size=4>　<BR>　　再好好研M下spring的文?BR><BR></FONT> <TABLE borderColor=#ffcc66 width="90%" align=center bgColor=#dadacf border=1> <TBODY> <TR> <TD><FONT size=4>http://www.jactiongroup.net/reference/html/index.htmlQ中文版Q未全部译Q?/FONT></TD></TR></TBODY></TABLE><BR><FONT size=4>　　q有是多实践吧?BR></FONT><img src ="http://www.aygfsteel.com/rkind/aggbug/22750.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" 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