CODEWITHSUNDEEP
javajsptomcatservlets
gstackoverflow
gstackoverflow

Reputation: 37098

How does tomcat resolve resources?

I develop web application.

Spring+Hibernate on Tomcat servlet container.

Today on another PC I deploy application and see that css doesn't load.

in jsp I use relative paths for this(example)

<link href="/resources/css/ui-lightness/jquery-ui-1.10.0.custom.min.css" rel="stylesheet">

Respective request which browser sends:

http://localhost:8080/resources/css/ui-lightness/jquery-ui-1.10.0.custom.min.css

and this request returns 404 http error.

for another jsp:

<link href="/resources/css/bootstrap.min.css" rel="stylesheet">

browser sends:

http://localhost:8080/terminal-company/resources/css/bootstrap.min.css

Thus you can see that from first jsp project name doesn't add to the URL

Why? and how to fix it? request me detail which I should to add to relevant answer.

project structure:

enter image description here

spring related part of web.xml:

<servlet>
        <servlet-name>appServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
         <param-name>contextConfigLocation</param-name>
         <param-value>/WEB-INF/spring/webContext.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>appServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

Upvotes: 1

Views: 1177

Answers (3)

JB Nizet
JB Nizet

Reputation: 692023

If your goal is to be able to use absolute paths, without caring (and knowing) about the context path of the webapp (/terminal-company in your second example), then use the JSTL <c:url> tag to generate all your URLs:

<link href="<c:url value='/resources/css/bootstrap.min.css'/>" rel="stylesheet">

The second example will send a request to /resources/css/bootstrap.min.css, and not to /terminal-company/resources/css/bootstrap.min.css, unless there is a <base> tag in the generated HTML page.

EDIT: your original question didn't say you were using spring, and mapped / to the dispatcher servlet. Spring is thus in charge of service resources. The documentation explains how to configure it. But that doesn't change anything to the above answer: to be independant of the context path, use c:url.

Upvotes: 2

user
user

Reputation: 745

I have experienced the same behaviour running on localhost. Just add the default servlet which will then serve static resources like css, js, images and so on. The mapping must be placed before your "/" urlpattern because "/" will match "/js". 

<servlet>
    <servlet-name>default</servlet-name>
    <servlet-class>
        org.apache.catalina.servlets.DefaultServlet
    </servlet-class>
    <init-param>
        <param-name>debug</param-name>
        <param-value>0</param-value>
    </init-param>
    <init-param>
        <param-name>listings</param-name>
        <param-value>true</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>/css/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>/images/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>/js/*</url-pattern>
</servlet-mapping>

Upvotes: 0

Naveen Kulkarni
Naveen Kulkarni

Reputation: 233

you have forgot to add servlet mapping in web.xml for your css files.

<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.css</url-pattern>
</servlet-mapping>

This applies same for all your js, png.

This will work i guess cause i also had same issues.

Upvotes: 0

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