在 JSP 中使用 ${pageContext.response.locale} 时，使用 jakarta 而不是 javax 会出现错误 javax.servlet.jsp 无法解析为类型

Question

最近我开始将 Spring Framework MVC 项目迁移到 Tomcat 10 和 Jakarta，在执行此操作时，我遇到了 1 个奇怪的错误。 在我的 JSP 文件中，我通常有以下代码：

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>

    <c:set var="localeCode" value="${pageContext.response.locale}" />
    

Eclipse（Spring Tool Suite）在这个文件上给我错误“javax.servlet.jsp 无法解析为类型”。

我尝试了所有我能想到的方法，但现在不知道如何继续。当我从 JSP 中删除“${pageContext.response.locale}”部分时，错误消失了。

有什么想法可能是这种情况吗？

在我的 MAVEN pom 文件中，我有以下内容：

<dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>6.0.6</version>
        </dependency>
<dependency>
                <groupId>jakarta.servlet</groupId>
                <artifactId>jakarta.servlet-api</artifactId>
                <version>6.0.0</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>jakarta.servlet.jsp</groupId>
                <artifactId>jakarta.servlet.jsp-api</artifactId>
                <version>3.1.0</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>jakarta.servlet.jsp.jstl</groupId>
                <artifactId>jakarta.servlet.jsp.jstl-api</artifactId>
                <version>3.0.0</version>
            </dependency>
            <dependency>
                <groupId>jakarta.el</groupId>
                <artifactId>jakarta.el-api</artifactId>
                <version>5.0.1</version>
            </dependency>
            <dependency>
                 <groupId>jakarta.validation</groupId>
                 <artifactId>jakarta.validation-api</artifactId>
                 <version>3.0.2</version>
             </dependency>
            <dependency>
                <groupId>org.glassfish.web</groupId>
                <artifactId>jakarta.servlet.jsp.jstl</artifactId>
                <version>2.0.0</version>
            </dependency> 

Answer 1

添加 pom 更新后错误标记消失了：

<dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>jakarta.servlet.jsp.jstl</artifactId>
            <version>3.0.1</version> <!-- Use the appropriate version -->
        </dependency>

最终的 pom 看起来像这样：

<properties>
        <spring.version>5.3.28</spring.version>
        <security.version>5.5.0</security.version>
        <jackson.version>1.9.12</jackson.version>       
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-core</artifactId>
            <version>${security.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-asm</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>${security.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-asm</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>${security.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-asm</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        
        <dependency>
            <groupId>jakarta.platform</groupId>
            <artifactId>jakarta.jakartaee-api</artifactId>
            <version>9.1.0</version> <!-- Jakarta EE 9 version -->
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>jakarta.servlet</groupId>
            <artifactId>jakarta.servlet-api</artifactId>
            <version>5.0.0</version> <!-- Use the appropriate version -->
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>jakarta.servlet.jsp</groupId>
            <artifactId>jakarta.servlet.jsp-api</artifactId>
            <version>3.0.0</version> <!-- Use the appropriate version -->
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>jakarta.servlet.jsp.jstl</artifactId>
            <version>3.0.1</version> <!-- Use the appropriate version -->
        </dependency>
        
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.30</version>
        </dependency>

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>5.6.5.Final</version> 
        </dependency>
        
        <dependency>
            <groupId>jakarta.persistence</groupId>
            <artifactId>jakarta.persistence-api</artifactId>
            <version>3.0.0</version> 
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>jakarta.transaction</groupId>
            <artifactId>jakarta.transaction-api</artifactId>
            <version>2.0.0</version> 
        </dependency>

        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>${jackson.version}</version>
        </dependency>