SpringMVC_HelloWorld_01，springmvchelloworld
通過設定檔的方式實現一個簡單的HelloWorld。
一、建立項目1、建立動態web項目 2、命名工程springmvc-01 3、勾選"Generate web.xml deployment descriptor" 4、匯入jar包 5、建立springmvc設定檔 6、命名設定檔springmvc-servlet.xml，命名規則：<servlet-name>-servlet.xml 7、選擇命名空間 8、完成 二、設定檔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，根據BeanName找到對應的Controller --> <bean class="org.springframework.web.servlet.mvc.support.ControllerBeanNameHandlerMapping"></bean> <!-- 配置Controller，響應mvc請求 --> <bean name="/mvc" class="com.zhy.controllers.HelloWorldController"></bean> <!-- 配置視圖解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 配置首碼 --> <property name="prefix" value="/WEB-INF/views/"></property> <!-- 配置尾碼 --> <property name="suffix" value=".jsp"></property> </bean></beans>三、編寫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 { /* * 通過視圖解析器（ViewResolver）得到實際的物理視圖 * 視圖解析器的解析規則：prefix + viewname + suffix * 結合本執行個體，視圖解析器的解析出來的物理視圖為：/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、建立jsp頁面1、建立helloworld.jsp，路徑：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、建立index.jsp，路徑：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、運行
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