通过配置文件的方式实现一个简单的HelloWorld。
源码
一、新建项目
1、新建动态web项目
2、命名工程springmvc-01
3、勾选"Generate web.xml deployment descriptor"
4、导入jar包
5、新建springmvc配置文件
6、命名配置文件springmvc-servlet.xml，命名规则：<servlet-name>-servlet.xml
默认路径为：/WEB-INF/springmvc_servlet.xml
7、选择命名空间
8、完成
二、配置文件
1、配置web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <!-- The front controller of this Spring Web application, responsible for handling all application requests --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <!-- Map all requests to the DispatcherServlet for handling --> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
2、配置springmvc-servlet.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:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd"> <!-- 配置HandlerMapping，根据BeanName找到对应的Controller --> <bean class="org.springframework.web.servlet.mvc.support.ControllerBeanNameHandlerMapping"></bean> <!-- 配置Controller，响应mvc请求 --> <bean name="/mvc" class="com.zhy.controllers.HelloWorldController"></bean> <!-- 配置视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 配置前缀 --> <property name="prefix" value="/WEB-INF/views/"></property> <!-- 配置后缀 --> <property name="suffix" value=".jsp"></property> </bean> </beans>
三、编写Controller
package com.zhy.controllers; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.Controller; public class HelloWorldController implements Controller { /* * 通过视图解析器（ViewResolver）得到实际的物理视图 * 视图解析器的解析规则：prefix + viewname + suffix * 结合本实例，视图解析器的解析出来的物理视图为：/WEB-INF/views/helloworld.jsp * */ @Override public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception { // TODO Auto-generated method stub System.out.println("call controller"); return new ModelAndView("helloworld"); } }
四、新建jsp页面
1、新建helloworld.jsp，路径：WEB-INF/views/helloworld.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!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=ISO-8859-1"> <title>Insert title here</title> </head> <body> <h1>Hello World!</h1> </body> </html>
2、新建index.jsp，路径：WEB-INF/index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!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=ISO-8859-1"> <title>Insert title here</title> </head> <body> <a href="mvc">hello world</a> </body> </html>
3、完成
四、运行
