引入jstl标签库报错The absolute uri: http://java.sun.com/jstl/core cannot be resolved in either web.xml

- 日理万妓 2024-04-18 13:01 20阅读 0赞

# 一、错误信息：org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application #

# 二、解决方法 #

#### 1.检查是否导入jstl包（jar包请到官网下载），没有就导入 ####

<dependency>
    	    <groupId>javax.servlet</groupId>
    	    <artifactId>jstl</artifactId>
    	    <version>1.2</version>
    	</dependency>

#### 2.有可能maven下载jar包时网络不好，在项目名处鼠标右键，选择maven,再选择update project,再选中你的项目然后重新下载 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoT0xn_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoT0xn_size_16_color_FFFFFF_t_70 1]

#### 3.上面两种方法无法解决的话，你可以查看tomcat>conf>catalina.propertie，将`tomcat.util.scan.StandardJarScanFilter.jarsToSkip=*.jar`改成`tomcat.util.scan.StandardJarScanFilter.jarsToScan=\`，然后重新new一个server ####

（前段时间因为tomcat启动很缓慢，所以将`tomcat.util.scan.StandardJarScanFilter.jarsToScan=\`改成`tomcat.util.scan.StandardJarScanFilter.jarsToSkip=*.jar`；启动速度是变快了许多，但是直到引入jstl标签库一直报错：`org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application`，网上各种方法都没解决，偶然改回来就可以了）

#### 4.如果还是解决不了，建议重新下载一个tomcat,下载地址[http://tomcat.apache.org/][http_tomcat.apache.org] ####

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoT0xn_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/26c1de499e4145aba6ad9915a254e3c2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NoT0xn_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/efa612e965924380a71e811e9c89a242.png
[http_tomcat.apache.org]: http://tomcat.apache.org/

引入jstl标签库报错The absolute uri: http://java.sun.com/jstl/core cannot be resolved in either web.xml

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