The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar

ゝ一世哀愁。 2022-07-12 07:49 115阅读 0赞

The absolute uri: [http://java.sun.com/jsp/jstl/core][http_java.sun.com_jsp_jstl_core] cannot be resolved in either web.xml or the jar  
出现了这个错误的时候我就奇怪了，后来检查才知道是WEB-INF /lib下面没有我们添加的jstl的jar 包。  
最终查到问题是 jstl.jar 包在ide项目中有，但在tomcat发布的应用WEB-INF/lib下没有，这是工具发布项目的问题，复制一个jar包过去问题就解决了。

还有一种方式那就是直接到如需要的两个jar包到WEB-INF/lib下面，然后在web.xml文件中配置一下需要的包的路径。代码如下：

<?xml version="1.0" encoding="UTF-8"?>
    <web-app 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">
        <jsp-config>
        <taglib>
        <taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
        <taglib-location>/WEB-INF/fmt.tld</taglib-location>
        </taglib>
        <taglib>
        <taglib-uri>http://java.sun.com/jstl/fmt-rt</taglib-uri>
        <taglib-location>/WEB-INF/fmt-rt.tld</taglib-location>
        </taglib>
        <taglib>
        <taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
        <taglib-location>/WEB-INF/c.tld</taglib-location>
        </taglib>
        <taglib>
        <taglib-uri>http://java.sun.com/jstl/core-rt</taglib-uri>
        <taglib-location>/WEB-INF/c-rt.tld</taglib-location>
        </taglib>
        <taglib>
        <taglib-uri>http://java.sun.com/jstl/sql</taglib-uri>
        <taglib-location>/WEB-INF/sql.tld</taglib-location>
        </taglib>
        <taglib>
        <taglib-uri>http://java.sun.com/jstl/sql-rt</taglib-uri>
        <taglib-location>/WEB-INF/sql-rt.tld</taglib-location>
        </taglib>
        <taglib>
        <taglib-uri>http://java.sun.com/jstl/x</taglib-uri>
        <taglib-location>/WEB-INF/x.tld</taglib-location>
        </taglib>
        <taglib>
        <taglib-uri>http://java.sun.com/jstl/x-rt</taglib-uri>
        <taglib-location>/WEB-INF/x-rt.tld</taglib-location>
        </taglib>
        </jsp-config>
    
    </web-app>

[http_java.sun.com_jsp_jstl_core]: http://java.sun.com/jsp/jstl/core

The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar

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