最近在看SpringMVC的视频,做一下记录。
对于SpringMVC访问静态文件,
首先要配置web.xml文件
<?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/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>springMVC1</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- springMVC 入口 dispatcher --> <servlet> <servlet-name>springMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 加载配置文件路径 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:config/spring-servlet.xml</param-value> </init-param> <!-- 何时启动 大于0的值表示容器启动时初始化此servlet,正值越小优先级越高--> <load-on-startup>1</load-on-startup> </servlet> <!-- 拦截 --> <servlet-mapping> <servlet-name>springMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
其次,配置spring-servlet.xml文件
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" 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-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <!-- 路径对应调用的Controller --> <bean name="/test/helloworld" class="com.tgb.web.controller.HelloWorldController"/> <!-- 视图解析 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 静态资源访问(不拦截此目录下的东西的访问) --> <mvc:resources location="/img/" mapping="/img/**" /> <!-- 同一个Controller多方法的配置 --> <bean name="/test/multi" class="com.tgb.web.controller.MultiController"> <property name="methodNameResolver"> <ref bean="paramMethodResolver"/> </property> </bean> <bean id="paramMethodResolver" class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver"> <property name="paramName" value="action"></property> </bean> <bean name="/test/img" class="com.tgb.web.controller.StaticController"> <property name="methodNameResolver"> <ref bean="paramMethodResolver"/> </property> </bean> </beans>
java代码:
package com.tgb.web.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.multiaction.MultiActionController; public class StaticController extends MultiActionController{ public ModelAndView img(HttpServletRequest request,HttpServletResponse response){ return new ModelAndView("/staticFile"); } public ModelAndView add(HttpServletRequest request,HttpServletResponse response){ System.out.println("--------------add---------"); return new ModelAndView("/multi","method","add"); } public ModelAndView update(HttpServletRequest request,HttpServletResponse response){ System.out.println("--------------update---------"); return new ModelAndView("/multi","method","update"); } }
package com.tgb.web.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.multiaction.MultiActionController; public class MultiController extends MultiActionController{ public ModelAndView add(HttpServletRequest request,HttpServletResponse response){ System.out.println("--------------add---------"); return new ModelAndView("/multi","method","add"); } public ModelAndView update(HttpServletRequest request,HttpServletResponse response){ System.out.println("--------------update---------"); return new ModelAndView("/multi","method","update"); } }
package com.tgb.web.controller; import java.util.HashMap; import java.util.Map; 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{ public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception { // TODO Auto-generated method stub System.out.println("---------------is here-----------"); String result = "I‘m coming!!"; //return new ModelAndView("/welcome","result",result);//传递字符串参数 Map<String,Object> map = new HashMap<String,Object>(); map.put("1", "sdf"); map.put("2", "234324"); return new ModelAndView("/welcome","map",map);//传递map参数 } }
JSP页面代码
staticFile.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!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=UTF-8"> <title>Insert title here</title> </head> <body> <h> 图片</h> <br/> <div> <img alt="图片" src="../img/a.png"> </div> </body> </html>
multi.jsp界面
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!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=UTF-8"> <title>Insert title here</title> </head> <body> 多方法Controller <br/> 此次方法${method } </body> </html>
welcome.jsp界面
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!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=UTF-8"> <title>Insert title here</title> </head> <body> Spring MVC is coming to see you!! <br/> ${result } <br/> 取map值 <div> <c:forEach items="${map }" var="m"> ${m.key } -----> ${m.value } </c:forEach> </div> </body> </html>
---------------------------------------------------------------------------------------------------------------------------
细节注意点:
1、路径中action的作用和配置,即如何调用方法
2、静态文件放置的位置(注意img文件夹的位置和使用时的配置,不要放在WEB-INF文件夹下tomcat容器会给屏蔽掉)
此文件夹发布到tomcat后的位置
3、使用.do后缀拦截方式