Ability to use webjar with spring without specifying version info in HTML/jsp file [SPR-12323]

[spring-projects-issues]

Titi Wangsa opened SPR-12323 and commented

In Play Framework,
we could use this

<link rel='stylesheet' href='@routes.WebJarAssets.at(WebJarAssets.locate("css/bootstrap.min.css"))'>

we already specified the version information in the sbt file.

In Spring
We need the version information in;

<link rel='stylesheet' href='/webjars/bootstrap/3.1.0/css/bootstrap.min.css'>

and
also in the pom.xml file

Expected behaviour:
we only specify

<link rel='stylesheet' href='/webjars/bootstrap.min.css'>

Perhaps we can specify the ResourceLoader here:

<mvc:resources mapping="/webjars/**" resourceLoader="pathMatchingResourcePatternResolver" location="/webjars/"/>

---

Reference URL: http://www.webjars.org/documentation

Referenced from: commits 57e0c78, 9e5a33c, e72b821

1 votes, 8 watchers

[spring-projects-issues]

Rossen Stoyanchev commented

This looks like a good candidate for a ResourceResolver (see reference update in 4.1).

Brian Clozel perhaps that's something we can add as well. A resolver to simplify access to webjars resources, perhaps triggered by prefix?

[spring-projects-issues]

Ruben Suarez Alvarez commented

As a workaround, you can use webjars-taglig-0.2.jar and, in your jsp, something like these:

<%@ taglib uri="http://www.webjars.org/tags" prefix="wj" %>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
...
        <wj:locate path="bootstrap.min.css" var="bootstrap_css"/>
        <link rel="stylesheet" href="<spring:url value='/webjars${bootstrap_css}' />" />
...

[spring-projects-issues]

Brian Clozel commented

This issue is now solved.
A new WebJarsResourceResolver has been implemented and searches for resources
located in WebJar locations. This ResourceResolver is automatically
registered if the "org.webjars:webjars-locator" dependency is present - this dependency is required and can be added like this:

<dependency>
    <groupId>org.webjars</groupId>
    <artifactId>webjars-locator</artifactId>
    <version>0.22</version>
</dependency>

compile 'org.webjars:webjars-locator:0.22'

Note that version 0.20+ is strongly advised, as previous versions don't support fat jars.