目录
1.pom.xml
2.index.jsp
3.web.xml
4. springmvc-config.xml
5. MyController
<%
String basePath = request.getScheme() + "://" + //获取协议
request.getServerName() + ":" + request.getServerPort() + //服务器名字和端口
request.getContextPath() + "/"; //返回站点的跟路劲
%>
<?xml version="1.0" encoding="UTF-8"?> <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>edu.tjdz</groupId> <artifactId>ch06-path</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!--servlet依赖--> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <!--springmvc依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.2.5.RELEASE</version> </dependency> </dependencies> <build> </build> </project>
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <% String basePath = request.getScheme() + "://" + //获取协议 request.getServerName() + ":" + request.getServerPort() + //服务器名字和端口 request.getContextPath() + "/"; //返回站点的跟路劲 %> <html> <head> <title>Title</title> <base href="<%=basePath%>"> </head> <body> <h5>解决jsp页面中的路径问题,用"/"还是不用</h5> <p><a href="user/some.do">发起some.do请求</a></p> </body> </html>
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <!--声明,注册springmvc的核心对象DispatcherServlet 需要在tomcat服务器启动后,创建DispatcherServlet实例。 为什么要创建DispatcherServlet对象的实例呢? 因为DispatcherServlet在他创建过程中,会同时创建springmvc容器对象, 读取springmvc的配置文件,把这个配置文件中的对象都创建好,当用户发起请求 时就可以直接使用对象了。 servlet的初始化会执行init()方法。DispatcherServlet在init()中{ //创建容器,读取配置文件 WebApplicationContext ctx = new ClassPathXmlApplicationContext("springmvc.xml"); //把容器对象放到ServletContext中 getServletContext().setAttribute(key,ctx); } 启动tomcat报错,读取这个文件 /WEB-INF/springmvc-servlet.xml(/WEB-INF/myweb-servlet.xml) springmvc创建容器对象时,读取的配置文件默认是 /WEB-INF/<servlet-name>-servlet.xml --> <servlet> <servlet-name>myweb</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--自定义springmvc读取的配置文件的位置--> <init-param> <!--springmvc的配置文件的位置的属性--> <param-name>contextConfigLocation</param-name> <!--指定自定义文件的位置--> <param-value>classpath:springmvc.xml</param-value> </init-param> <!--在tomcat启动后,创建Servlet对象 load-on-startup:表示tomcat启动后创建对象顺序。它的值是整数,数值越小, tomcat创建的对象时间越早。大于等于0的整数 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>myweb</servlet-name> <!-- 使用框架的时候,url-pattern可以使用两种值 1.使用扩展名方式,语法 *.xxxx ,xxxx是自定义文件的扩展名。常用的方式有 *.do,*.action,*.mvc等等 http://locatlhost:8080/myweb/some.do http://locatlhost:8080/myweb/other.do 2.使用斜杠 "/" --> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
<?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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"> <!--声明组件扫描器--> <context:component-scan base-package="edu.tjdz.controller"/> <!--声明springmvc框架中的视图解析器,帮助开发人员设置视图文件的路径--> <!--<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!–前缀 : 视图文件的路径–> <property name="prefix" value="/WEB-INF/view/"/> <!–后缀 : 视图文件的扩展名–> <property name="suffix" value=".jsp"/> </bean>--> </beans>
package edu.tjdz.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.servlet.ModelAndView; @Controller @RequestMapping public class MyController { @RequestMapping(value = "/user/some.do",method=RequestMethod.GET) public ModelAndView doSome(){ ModelAndView mv = new ModelAndView(); mv.addObject("msg","欢迎使用springmvc做web开发"); mv.addObject("fun","执行的是doSome()方法"); mv.setViewName("/index.jsp"); return mv; } }