小编给大家分享一下Spring之WEB模块配置的示例分析,相信大部分人都还不怎么了解,因此分享这篇文章给大家参考一下,希望大家阅读完这篇文章后大有收获,下面让我们一起去了解一下吧!

Spring的WEB模块用于整合Web框架,例如Struts1、Struts2、JSF等
整合Struts1
继承方式
Spring框架提供了ActionSupport类支持Struts1的Action。继承了ActionSupport后就能获取Spring的BeanFactory,从而获得各种Spring容器内的各种资源
import org.springframework.web.struts.ActionSupport;
public class CatAction extends ActionSupport{
public ICatService getCarService(){
return (ICatService) getWebApplicationContext().getBean("catService");
}
public ActionForward execute(ActionMappingmapping,ActionForm form,HttpServletRequest request,HttpServletResponseresponse){
CatForm catForm = (CatForm) form;
if("list".equals(catForm.getAction())){
returnthis.list(mapping,form,request,response);
}
}
public ActionForward list(ActionMappingmapping,ActionForm form,HttpServletRequest request,HttpServletResponseresponse){
CatForm catForm = (CatForm) form;
ICatService catService =getCatService();
List catList =catService.listCats();
request.setAttribute("carList",catList);
return mapping.find("list");
}
} Spring在web.xml中的配置
contextConfigLocation /WEB-INF/classes/applicationContext.xml org.springframework.web.context.ContextLoaderListener CharacterEncodingFilter org.springframework.web.filter.CharacterEncodingFilter encoding UTF-8 forceEncoding true CharacterEncodingFilter /*
如果与Hibernate结合使用,需要在web.xml中添加OpenSessionInViewFilter过滤器,将session范围扩大到JSP层,防止抛出延迟加载异常
hibernateFilter org.springframework.orm.hibernate3.support. OpenSessionInViewFilter hibernateFilter *.do
代理方式
继承方式融入Spring非常简单,但是缺点是代码与Spring发生了耦合,并且Action并没有交给Spring管理,因此不能使用Spring的AOP、IoC特性,使用代理方式则可以避免这些缺陷
public class CatAction extends Action{ //此处继承的Struts 1的Action
private ICatService catService;
//setter、getter略
public ActionForward execute(ActionMappingmapping,ActionForm form,HttpServletRequest request,HttpServletResponseresponse){
CatForm catForm = (CatForm) form;
if("list".equals(catForm.getAction())){
returnthis.list(mapping,form,request,response);
}
}
public ActionForward list(ActionMappingmapping,ActionForm form,HttpServletRequest request,HttpServletResponseresponse){
CatForm catForm = (CatForm) form;
ICatService catService =getCatService();
List catList =catService.listCats();
request.setAttribute("carList",catList);
return mapping.find("list");
}
} 这个Action没有与Spring发生耦合,只是定义了一个ICatService属性,然后由Spring负责注入
struts-congfig.xml配置
web.xml的配置与上面的继承方式相同
使用代理方式的Action可以配置拦截器等Spring特性,例如给CatAction配置方法前拦截器和返回后拦截器
catBeforeInterceptor catAfterInterceptor
整合Struts 2
Spring整合Struts 2需要struts2-spring-2.011.jar包
public class CatAction{
private ICatService catService;
private Cat cat;
//setter、getter略
public String list(){
catService.listCats();
return "list";
}
public String add(){
catService.createCat(cat);
return list();
}
}struts.xml配置
除了正常的配置之外,还需要
{1} /list.jsp /list.jsp
Spring配置
web.xml配置
contextConfigLocation /WEB-INF/classes/applicationContext.xml org.springframework.web.context.ContextLoaderListener Struts2 org.apache.struts2.dispatcher.FilterDispatcher Struts2 /*
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