常见问题 1:JSTL版本冲突
Error:
The absolute uri: http://Java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
reason:
JSTL版本与servlet版本不兼容
Solution:
servlet容器不同版本下,选择对应的jstl版本即可。
具体如下:
Servlet各个版本使用jstl
Servlet 2.4
web.xml中的scheme定义
<?xml version="1.0" encoding="UTF-8"?>
<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">
maven中的依赖
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
Servlet 2.5
web.xml中的scheme定义
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
maven中的依赖
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
Servlet 3.0
web.xml中的scheme定义
<web-app
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
maven中的依赖(来自于http://www.murraywilliams.com/2011/11/running-jstl-1-2-on-tomcat-7-using-maven/)
```
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.glassfish.web</groupId>
<artifactId>jstl-impl</artifactId>
<version>1.2</version>
<exclusions>
<exclusion>
<artifactId>servlet-api</artifactId>
<groupId>javax.servlet</groupId>
</exclusion>
<exclusion>
<artifactId>jsp-api</artifactId>
<groupId>javax.servlet.jsp</groupId>
</exclusion>
<exclusion>
<artifactId>jstl-api</artifactId>
<groupId>javax.servlet.jsp.jstl</groupId>
</exclusion>
</exclusions>
</dependency>