Spring MVC 的三种映射控制器.docxVIP

Spring MVC 的三种映射控制器 在spring mvc?框架中我们可以使用三种url mapping的控制器（1）BeanNameUrlHandlerMapping?默认控制器，方式是将表现层的url和bean name绑定在一起（2）SimpleUrlHandlerMapping 通过properties形式配置url mapping和controller的映射（3）CommonsHandlerMappingy 使用元数据的方式我们的actionpackage?Action;import?javax.servlet.http.HttpServletRequest;import?javax.servlet.http.HttpServletResponse;import?org.springframework.web.servlet.ModelAndView;import?org.springframework.web.servlet.mvc.Controller;import?org.springframework.web.servlet.DispatcherServlet;public?class?HomeController?implements?Controller?{?private?String?greeting;??public?String?getGreeting()?{?return?greeting;?}?public?void?setGreeting(String?greeting)?{?this.greeting?=?greeting;?}?public?ModelAndView?handleRequest(HttpServletRequest?arg0,?HttpServletResponse?arg1)?throws?Exception?{?return?new?ModelAndView(home,message,greeting);?}?}??JSP页面 命名为home.jsp因为ModelAndView对象中的视图逻辑名为home%@?page?language=java?import=java.util.*?pageEncoding=GB18030%%String?path?=?request.getContextPath();String?basePath?=?request.getScheme()+://+request.getServerName()+:+request.getServerPort()+path+/;%!DOCTYPE?HTML?PUBLIC?-//W3C//DTD?HTML?4.01?Transitional//ENhtml?head?base?href=%=basePath%??titleMy?JSP?index.jsp?starting?page/title?meta?http-equiv=pragma?content=no-cache?meta?http-equiv=cache-control?content=no-cache?meta?http-equiv=expires?content=0??meta?http-equiv=keywords?content=keyword1,keyword2,keyword3?meta?http-equiv=description?content=This?is?my?page?!--?link?rel=stylesheet?type=text/css?href=styles.css?--?/head??body?${message}br?/body/htmlweb.xml?xml?version=1.0?encoding=UTF-8?web-app?version=2.4??xmlns=/xml/ns/j2ee??xmlns:xsi=/2001/XMLSchema-instance??xsi:schemaLocation=/xml/ns/j2ee??/xml/ns/j2ee/web-app_2_4.xsd?context-param?param-namecontextConfigLocation/param-name?param-value/WEB-INF/train-service.xml,/WEB-INF/train-data.xml,/WEB-INF/train-servlet.xml/param-value?/context-param?servlet?servlet-nametrain/servlet-name?servlet-classorg.springframework.web.servlet.Disp