5.SpringMVC静态文件的访问
我们在进行springMVC开发时,必定会在jsp页面引入js文件、img文件和css文件。大多数人会将这些分类存放在WebRoot文件下新建的文件夹下面。同时,会在web.xml文件中配置拦截所有请求即配置<url-pattern> / </url-pattern>。这样就造成了页面无法访问到js、img和css文件夹中的文件了。
在SpringMVC中可以利用 <mvc:resources location="/img/" mapping="/img/**"/>来访问。从而解决了上述问题。
引入jar包
1.web.xml配置
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<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <!--基础配置有springMVC配置的servlet路径--> <servlet-name>SpringMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--如果需要加载其他地方的多个springMVC配置文件--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:config/SpringMVC-servlet.xml</param-value> <!--classpath*代表在src下寻找config文件夹再在其中寻找以-servlet.xml文件结尾的文件--> </init-param> <!--配置加载顺序的--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <url-pattern>/</url-pattern><!-- 拦截所有请求 --> </servlet-mapping> </web-app>
2.spring-servlet.xml配置
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<?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:p="http://www.springframework.org/schema/p" 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-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"> <!-- 常规单class多方法bean --> <bean name="/test1/multi" class="controller.MultiController"> <property name="methodNameResolver"> <ref bean="paramMethodResolver" /> </property> </bean> <!-- 常规单class多方法bean,静态资源访问 --> <bean name="/test1/static" class="controller.StaticController"> <property name="methodNameResolver"> <ref bean="paramMethodResolver" /> </property> </bean> <!-- 常规单class单方法bean --> <bean name="/test1/hello" class="controller.HelloSpringMVCController"></bean> <!-- 静态资源访问 --> <mvc:resources location="/img/" mapping="/img/**" /> <mvc:resources location="/js/" mapping="/js/**" /> <!--以上两句就是设置spring的拦截器不对img文件夹与js文件夹的文件进行拦截--> <!-- 参数名称解析 --> <bean id="paramMethodResolver" class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver"> <property name="paramName" value="action"></property> </bean> <!-- 视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"></property> <!-- 前缀 --> <property name="suffix" value=".jsp"></property> <!-- 后缀 --> </bean> </beans>
3.StaticController之间转换器,控制器
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package 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) {
System.out.println("----img----");
return new ModelAndView("/staticFile");
}
public ModelAndView jQuey(HttpServletRequest request,
HttpServletResponse response) {
System.out.println("----jquery----");
return new ModelAndView("/JQuery");
}
}
4.jQuery.jsp和
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<%@ 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>实现一个controller写多个方法</title> </head> <body> <h>图片访问</h> <div> <img alt="图片" src="../img/3.png"> </div> </body> </html>
结果截图
反馈的视图
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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <script type="text/javascript" src="../js/jquery-1.10.2.min.js"> $(document).ready(function(){ alert(11); }); </script> </head> <body> jQuery请求<br> </body> </html>
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