以下示例说明如何使用Spring Web MVC框架使用简单URL处理程序映射. SimpleUrlHandlerMapping类有助于分别使用控制器显式映射URL.
<beans> <bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name = "prefix" value = "/WEB-INF/jsp/"/> <property name = "suffix" value = ".jsp"/> </bean> <bean class = "org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name = "mappings"> <props> <prop key = "/welcome.htm">welcomeController</prop> <prop key = "/helloWorld.htm">helloController</prop> </props> </property> </bean> <bean id = "helloController" class = "com.it1352.HelloController" /> <bean id = "welcomeController" class = "com.it1352.WelcomeController"/> </beans>
例如,使用上述配置,如果URI
请求
/helloWorld.htm,DispatcherServlet会将请求转发给 HelloController .
/welcome.htm被请求,DispatcherServlet会将请求转发给 WelcomeController .
首先,让我们一个有效的Eclipse IDE就位并考虑以下步骤使用Spring Web Framework开发基于动态表单的Web应用程序.
Step | 描述 |
---|---|
1 | 在com.it1352包下创建一个名为 TestWeb 的项目,如Spring MVC中所述 - Hello世界分会. |
2 | 创建Java类HelloController和com.it1352包下的WelcomeController. |
3 | 在jsp子文件夹下创建视图文件hello.jsp和welcome.jsp. |
4 | 最后一步是创建源代码和配置文件的内容并导出应用程序,如下所述. |
package com.it1352; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractController; public class HelloController extends AbstractController{ @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { ModelAndView model = new ModelAndView("hello"); model.addObject("message", "Hello World!"); return model; } }
package com.it1352; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractController; public class WelcomeController extends AbstractController{ @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { ModelAndView model = new ModelAndView("welcome"); model.addObject("message", "Welcome!"); return model; } }
<beans xmlns = "http://www.springframework.org/schema/beans" xmlns:context = "http://www.springframework.org/schema/context" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation = " http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name = "prefix" value = "/WEB-INF/jsp/"/> <property name = "suffix" value = ".jsp"/> </bean> <bean class = "org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name = "mappings"> <props> <prop key = "/welcome.htm">welcomeController</prop> <prop key = "/helloWorld.htm">helloController</prop> </props> </property> </bean> <bean id = "helloController" class = "com.IT屋.HelloController" /> <bean id = "welcomeController" class = "com.IT屋.WelcomeController"/> </beans>
<%@ page contentType = "text/html; charset = UTF-8" %> <html> <head> <title>Hello World</title> </head> <body> <h2>${message}</h2> </body> </html>
<%@ page contentType = "text/html; charset = UTF-8" %> <html> <head> <title>Welcome</title> </head> <body> <h2>${message}</h2> </body> </html>
完成创建源文件和配置文件后,导出应用程序.右键单击您的应用程序,使用 Export → WAR文件选项并将 TestWeb.war 文件保存在Tomcat的webapps文件夹中.
现在,启动Tomcat服务器并确保能够使用标准浏览器从webapps文件夹访问其他网页.尝试一下URL : http://localhost:8080/TestWeb/helloWorld.htm 如果Spring Web Application的一切正常,我们将看到以下屏幕.
尝试URL http://localhost:8080/TestWeb/welcome .htm 如果你的Spring Web应用程序一切正常,你应该看到以下结果.