SpringMVC(一)
目录
1 搭建MVC HelloWorld
步骤 1 添加JAR,或者配置maven
2 配置WEB.XML文件 (配置servlet的位置及文件名)
3 配置servlet文件 (配置viewResolver和colltroller类)
4 写colltroller文件 (处理请求和返回页面及参数)
5 前端页面
6 测试
1 MAVEN配置
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>TestMaven</groupId> <artifactId>TestMaven</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>TestMaven</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.4</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>3.0.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>3.0.5.RELEASE</version> </dependency> <dependency> <groupId>org.apache.geronimo.specs</groupId> <artifactId>geronimo-servlet_2.5_spec</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>org.apache.openejb</groupId> <artifactId>javaee-api</artifactId> <version>5.0-1</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.faces</groupId> <artifactId>jsf-api</artifactId> <version>1.2_04</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.faces</groupId> <artifactId>jsf-impl</artifactId> <version>1.2_04</version> <scope>provided</scope> </dependency> </dependencies> </project>
2 web.xml配置
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <context-param> //如果不设置则,默认在WEB-INF目录下,设置初始化的beans配置文件的目录 <param-name>contextConfigLocation</param-name> <param-value>classpath*:/beans.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>springMVC</servlet-name> //这里设置将要读取的servlet的配置文件名 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> //如果不设置,则默认在WEB-INF目录下 <param-name>contextConfigLocation</param-name> <param-value>classpath*:/springMVC-servlet.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
3 springMVC-servlet.XML 这个相当于STRUTS2的STRUST2.XML
<?xml version="1.0" encoding="UTF-8"?> <!-- Bean头部 --> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:util="http://www.springframework.org/schema/util" 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 http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd"> <!-- 激活@Controller模式 --> <mvc:annotation-driven /> <!-- 对包中的所有类进行扫描,以完成Bean创建和自动依赖注入的功能 需要更改 --> <context:component-scan base-package="com.sunfan.action" /> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix">//这里设置前缀路径 <value></value> </property> <property name="suffix">//这里设置后缀,如.JSP <value></value> </property> </bean> </beans>
4 beans.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <beans>//暂时无需要启动的bean,不做配置 </beans>
5 Colltroller配置,这个相当于STRUTS2的ACTION
package com.sunfan.action; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.Controller; @org.springframework.stereotype.Controller public class GreetingController implements Controller{ @RequestMapping("greeting")//相当于ACTION的NAME ,供前端访问 public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception { String name = request.getParameter("username"); return new ModelAndView("/js/index.jsp","name",name);//返回页面+返回的参数KEY,VALUE值 } }
6 js/目录下的login.jsp和index.jsp
注意 由于login.jsp是在/JS/*层的,他要访问的ACTION是/*层的。所以写绝对路径比较方便
login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% //获取绝对路径 String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; pageContext.setAttribute("basePath",basePath); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>My JSP ‘login.jsp‘ starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> <div> <form action="${pageScope.basePath}greeting" method="get">//ACTION指向绝对路径的地址 <input type="text" name="username"> <input type="submit" value="SUBMIT"> </form> </div> </html>
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>孙帆的小屋</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> ${name} </body> </html>
7测试一下
1 访问 http://localhost:8080/sunfan/js/login.jsp
2 输入名字
3 测试通过
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