Cannot resolve taglib with uri http://java.sun.com/jsp/jstl/cor

有时候我们WEB开发<%@ taglib prefix=“c” uri=“http://java.sun.com/jsp/jstl/core” %>标签库会爆红，报这样的错误：

“Cannot resolve taglib with uri http://java.sun.com/jsp/jstl/cor”

原因是缺少了jstl和staddard两个依赖：

<!-- 引入jstl.jar和standard.jar -->
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
</dependency>
<dependency>
    <groupId>taglibs</groupId>
    <artifactId>standard</artifactId>
    <version>1.1.2</version>
</dependency>