1. In Eclipse, create a name for the chapter11 Web project, add JAR package running Spring MVC procedures required in the lib directory of the project, and published to the classpath.
(Tomcat-juli.jar is found in the bin folder under the tomcat)
Spring project added four core JAR package, commons-logging of JAR JAR and two web-related (libs directory can be found in the Spring unpacked folder), these two web-related JAR package is the Spring MVC framework required JAR package.
2. in web.xml configure the front of the controller DispatcherServlet Spring MVC.
<?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"
xmlns:web="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath: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>
</web-app>3. src directory, create a com.itheima.controller package, and creates a package in FirstController controller class, the class need to implement the Controller interface, edited as shown below.
package com.itheima.controller;
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 FirstController implements Controller {//实现Controller接口
@Override
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) {
ModelAndView mav = new ModelAndView();//创建ModelAndView对象
mav.addObject("msg","This is the first Spring MVC programme!");//添加返回信息
mav.setViewName("/WEB-INF/jsp/first.jsp");//设置逻辑视图名
return mav;
}
}
4. src directory, create a profile springmvc-config.xml, and configure the controller information in the file.
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns = "http://www.springframework.org/schema/beans"
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-4.3.xsd">
<bean name = "/firstController" class = "com.itheima.controller.FirstController"/>
<!-- 处理器映射器，将处理器Handle的name作为url进行查找 -->
<bean class = "org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
<!-- 处理器适配器，配置对处理器中handleRequest()方法的调用-->
<bean class = "org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>
<bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver"/>
</beans>5. In the WEB-INF directory, jsp create a folder, and create a page file in the folder first.jsp, msg obtain information using an EL expression in this page, as shown below.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Good</title>
</head>
<body>
${msg}
</body>
</html>
Run Process Display:
6. chapter11 publish a project to Tomcat, and start the Tomcat server. Access browser address http: // localhost: 8080 / chapter11 / firstController, which show the following effects:
Can be seen from the figure, the browser has shown the character string information model objects. This explains the first Spring MVC program successful.
