@Controller注解
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1.在Web.xml中配置前端控制器DispatcherServlet
- <?xml version="1.0" encoding="UTF-8"?>
- <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
- <display-name>ControllerTest</display-name>
-
- <servlet>
- <servlet-name>springmvc</servlet-name>
- <servlet-class>
- org.springframework.web.servlet.DispatcherServlet
- </servlet-class>
- <init-param>
- <param-name>contextConfigLocation</param-name>
- <param-value>/WEB-INF/springmvc-config.xml</param-value>
- </init-param>
- <load-on-startup>1</load-on-startup>
- </servlet>
-
- <servlet-mapping>
- <servlet-name>springmvc</servlet-name>
- <url-pattern>/</url-pattern>
- </servlet-mapping>
-
- <filter>
- <filter-name>characterEncodingFilter</filter-name>
- <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
- <init-param>
- <param-name>encoding</param-name>
- <param-value>UTF-8</param-value>
- </init-param>
- </filter>
- <filter-mapping>
- <filter-name>characterEncodingFilter</filter-name>
- <url-pattern>/*</url-pattern>
- </filter-mapping>
- </web-app>
2.配置Spring MVC的Controller springmvc-config.xml
- <?xml version="1.0" encoding="UTF-8"?>
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xmlns:mvc="http://www.springframework.org/schema/mvc"
- xmlns:context="http://www.springframework.org/schema/context"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
- http://www.springframework.org/schema/mvc
- http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
- http://www.springframework.org/schema/context
- http://www.springframework.org/schema/context/spring-context-4.2.xsd">
-
- <context:component-scan base-package="org.fkit.controller"/>
-
- <bean id="viewResolver"
- class="org.springframework.web.servlet.view.InternalResourceViewResolver">
-
- <property name="prefix">
- <value>/WEB-INF/content/</value>
- </property>
-
- <property name="suffix">
- <value>.jsp</value>
- </property>
- </bean>
- </beans>
-
3.HelloWorldController类的实现(@Controller注解的使用)- package org.fkit.controller;
-
- import org.springframework.stereotype.Controller;
- import org.springframework.ui.Model;
- import org.springframework.web.bind.annotation.RequestMapping;
-
-
-
-
-
- @Controller
- public class HelloWorldController{
- @RequestMapping("/helloWorld")
- public String helloWorld(Model model) {
-
- model.addAttribute("message", "Hello World!");
- return "helloWorld";
- }
-
- }
4.View界面(helloWorld.jsp)
- <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
- <title>测试@Controller注解</title>
- </head>
- <body>
-
- ${requestScope.message}
- </body>
- </html>
5.截图
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