访问Spring MVC app的JSP页面中的资源 [英] Accessing resources in JSP page of Spring MVC app
问题描述
我对Spring很新，我在Spring mvc应用程序中访问我的资源时遇到问题。我试过Google并使用堆栈溢出来找到答案（这些都没有帮助我可能的解决方案1 ，或可能的解决方案，可能的解决方案3 ，弹簧框架）但我发现没有任何一个解决了我的问题或提高了我对问题（可能只是因为我不太明白提到的解决方案）。
I am fairly new to spring and I am having issues with accessing my resources in my Spring mvc app. I have tried Google and using stack overflow to find an answer (none of these helped me possible solution 1 , or possible solution, possible solution 3, spring framework ) but I have found none that have either solved my problem or improved my understanding of the problem (it may be simply because I didn't quite understand the mentioned solutions).
我设法将我的css文件嵌入到网页中，但使用的代码是：
I have managed to embedded my css file into a webpage but using the code:
<%@include file="css/style.css" %>
但由于显而易见的原因，我无法使用这种方式访问它。我也尝试在我的web.xml文件中使用以下内容但它没有任何效果，我承认我并不真正理解这种情况下的映射，因此这可能是一个问题
but I cannot access it using a URL this way for obvious reasons. I have also tried using the following in my web.xml file but it has no effect, I admit I don't really understand the mapping in this case so that may be an issue
<mvc:annotation-driven />
<mvc:resources mapping="/images/**" location="/images/" />
<mvc:resources mapping="/css/**" location="/css/" />
我也尝试过单独使用以下各项：
I have also tried using each of the following separately:
<img src="<%=request.getContextPath()%>/images/logo.jpg"/>
<img src="<%=request.getContextPath()%>/src/main/resources/images/logo.jpg"/>
这是我的项目布局：
这是我的web.xml ：
This is my web.xml:
<web-app id="WebApp_ID" 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">
<display-name>MyProject Application</display-name>
<servlet>
<servlet-name>myServlet</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>myServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
这是我的myServlet-servlet.xml：
This is my myServlet-servlet.xml:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
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-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- -->
<mvc:annotation-driven />
<mvc:resources mapping="/images/**" location="/images/" />
<mvc:resources mapping="/css/**" location="/css/" />
<bean name="/index.html"
class="com.myproject.controller.AdminController" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
以防万一这是我的pom.xml：
and just in case here is my pom.xml:
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myproject</groupId>
<artifactId>myProject</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>myProject Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<springVersion>3.0.4.RELEASE</springVersion>
</properties>
<dependencies>
<!-- JUnit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- ORACLE JDBC driver, need install yourself -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.6.3.Final</version>
</dependency>
<!-- Spring framework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${springVersion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springVersion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springVersion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springVersion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${springVersion}</version>
</dependency>
<!-- for compile only, your container should have this -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Commons-logging & log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.12</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>
<build>
<finalName>admin_UI</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<webappDirectory>/sample/servlet/container/deploy/directory</webappDirectory>
</configuration>
</plugin>
</plugins>
</build>
</project>
如果我可以从内部访问图像和css文件夹以及这些文件夹中的内容，我会很高兴webapp / WEB-INF / pages就像我可以访问我的jsp页面一样（即通过URL），但理想情况下我想了解我应该如何正确地做到这一点，即我应该映射到哪个文件夹（src\main\资源或src\main\webapp\WEB-INF \ some_resource_folder）以及我应该如何映射它。
I would be happy if I can get access the images and css folders and the contents those folders from within the webapp/WEB-INF/pages the same way I can access my jsp pages (ie via URL), but Ideally I would like to understand how I should do this correctly i.e. what folder I should be mapping (src\main\resources or src\main\webapp\WEB-INF\some_resource_folder) and how I should map it.
如果需要更多信息，我会很高兴提供。
If any more information is require I would be happy to supply.
推荐答案
您应该将所有静态Web内容（如图像，css和javascript）放在webcontent（root）下的资源目录中目录）目录。
You should place all of your static web content such as images, css and javascript in a resources directory under the webcontent (root directory) directory.
然后在 myServlet-servlet.xml 中将目录指定为资源目录。这将告诉调度员不要处理静态资源请求。
Then in myServlet-servlet.xml specify the directory as a resources directory. This will tell the dispatcher not to process requests for static resources.
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<mvc:resources mapping="/resources/**" location="/resources/" />
在jsp文件中，您应该使用依赖于上下文路径的根相对URL访问这些资源由JSP EL解决。
In your jsp files you should then access these resources using a root relative url that relies upon the context path resolved by JSP EL.
<link href="${pageContext.servletContext.contextPath}/resources/My_CSS.css" rel="stylesheet"/>
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