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Java JSTL不工作

java maven spring-mvc

Java JSTL不工作,java,maven,spring-mvc,jstl,Java,Maven,Spring Mvc,Jstl,我创建了一个带有一行JSTL的示例页面，它没有显示任何内容。我在JBoss7.1服务器上运行它。我使用Eclipse管理所有项目 web.xml <?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-inst

我创建了一个带有一行JSTL的示例页面，它没有显示任何内容。我在JBoss7.1服务器上运行它。我使用Eclipse管理所有项目

web.xml

<?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">
</web-app>
WebMvcConfig.java

@EnableWebMvc
@EnableScheduling
@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter {
    @Bean
    public ViewResolver getViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setViewClass(JstlView.class);
        resolver.setPrefix("WEB-INF/jsp/");
        resolver.setSuffix(".jsp");
        return resolver;
    }
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/assets/**").addResourceLocations("classpath:/META-INF/resources/webjars/").setCachePeriod(31556926);
        registry.addResourceHandler("/css/**").addResourceLocations("/css/").setCachePeriod(31556926);
        registry.addResourceHandler("/images/**").addResourceLocations("/images/").setCachePeriod(31556926);
        registry.addResourceHandler("/js/**").addResourceLocations("/js/").setCachePeriod(31556926);
    }

    //Set default servlet handler, this is the same as <mvc:default-servlet-handler/>
    /*@Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }*/
}

@EnableWebMvc
@使能调度
@配置
公共类WebMvcConfig扩展了WebMVCConfigureAdapter{
@豆子
公共ViewResolver getViewResolver（）{
InternalResourceViewResolver解析器=新的InternalResourceViewResolver（）；
setViewClass（JstlView.class）；
setPrefix（“WEB-INF/jsp/”）；
resolver.setSuffix（“.jsp”）；
返回解析器；
}
@凌驾
public void addResourceHandlers（ResourceHandlerRegistry注册表）{
registry.addResourceHandler（“/assets/**”）.addResourceLocations（“classpath:/META-INF/resources/webjars/”）.setCachePeriod（31556926）；
registry.addResourceHandler（“/css/**”）.addResourceLocations（“/css/”）.setCachePeriod（31556926）；
registry.addResourceHandler（“/images/**”）.addResourceLocations（“/images/”）.setCachePeriod（31556926）；
registry.addResourceHandler（“/js/**”）.addResourceLocations（“/js/”）.setCachePeriod（31556926）；
}
//设置默认servlet处理程序，这与
/*@凌驾
公共无效配置DefaultServletHandling（DefaultServletHandlerConfigurer-configurer）{
configurer.enable（）；
}*/
}
hello.jsp

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html><body>
<c:out value="${header['user-agent']}" default="unknown"/>
</body></html>
pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.myproject</groupId>
    <artifactId>myproject</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>My Project</name>
    <properties>
        <gwtVersion>2.5.1</gwtVersion>
        <springVersion>3.2.6.RELEASE</springVersion>
        <hibernateVersion>4.2.8.Final</hibernateVersion>
        <!-- GWT needs at least java 1.5 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    </properties>
    <repositories>
        <repository>
            <id>springsource-repo</id>
            <name>SpringSource Repository</name>
            <url>http://repo.springsource.org/release</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!-- Dynamic Web Module 3.0 with JSTL -->
        <!--<dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.0.1</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>javax.servlet.jsp.jstl-api</artifactId>
            <version>1.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>javax.servlet.jsp.jstl</artifactId>
            <version>1.2.1</version>
        </dependency>-->
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>1.4.7</version>
        </dependency>
        <dependency>
            <groupId>javax.activation</groupId>
            <artifactId>activation</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.2.4</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernateVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <!--<dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>-->
        <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>
            <scope>runtime</scope>
        </dependency>
    </dependencies>
    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <!--<version>3.1</version> -->
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <!--<version>2.4</version> -->
                <configuration>
                    <warSourceDirectory>WebContent</warSourceDirectory>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
            <!--<plugin>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>9.0.6.v20130930</version>
                <configuration>
                    <httpConnector>
                        <port>8080</port>
                        <host>localhost</host>
                    </httpConnector>
                    <scanIntervalSeconds>10</scanIntervalSeconds>
                </configuration>
            </plugin>-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.16</version>
                <dependencies>
                    <dependency>
                        <groupId>org.apache.maven.surefire</groupId>
                        <artifactId>surefire-junit47</artifactId>
                        <version>2.16</version>
                    </dependency>
                </dependencies>
            </plugin>
            <!--<plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
            </plugin>-->
            <plugin>
                <artifactId>maven-eclipse-plugin</artifactId>
                <version>2.9</version>
                <configuration>
                    <downloadJavadocs>true</downloadJavadocs>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>


4.0.0
com.myproject
我的项目
1.0-快照
战争
我的项目
2.5.1
3.2.6.1发布
4.2.8.最终版本
UTF-8
UTF-8
springsource回购
SpringSource存储库
http://repo.springsource.org/release
log4j
log4j
1.2.17
javax.mail
邮件
1.4.7
javax.activation
激活
1.1.1
com.google.code.gson
格森
2.2.4
编译
log4j
log4j
1.2.17
org.hibernate
冬眠核心
${hibernateEversion}
org.springframework
春季aop
${springVersion}
org.springframework
spring上下文
${springVersion}
org.springframework
spring上下文支持
${springVersion}
org.springframework
弹簧芯
${springVersion}
org.springframework
SpringWebMVC
${springVersion}
朱尼特
朱尼特
4.11
测试
javax.servlet
jstl
1.2
塔格利布
标准
1.1.2
运行时
src
maven编译器插件
1.7
1.7
maven战争插件
网络内容
假的
org.apache.maven.plugins
maven surefire插件
2.16
org.apache.maven.surefire
surefire-junit47
2.16
maven eclipse插件
2.9
真的
我通过使用Servlet 2.5而不是Servlet 3.x解决了我的问题，你的问题是？为什么JSTL不工作？不工作是什么意思？请不要说“它没有显示任何内容”。可能有很多原因，都是未知的，因为这与你发布的代码无关。如果您的WAR没有部署，您将得到HTTP 404响应，而不是200响应。检查日志并查看它是否正确部署。去掉HTML中的JSTL和硬代码“HelloWorld”。如果这不起作用，你就知道这不是JSTL。你看到的是未知的还是什么都没有？ 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.myproject</groupId>
    <artifactId>myproject</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>My Project</name>
    <properties>
        <gwtVersion>2.5.1</gwtVersion>
        <springVersion>3.2.6.RELEASE</springVersion>
        <hibernateVersion>4.2.8.Final</hibernateVersion>
        <!-- GWT needs at least java 1.5 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    </properties>
    <repositories>
        <repository>
            <id>springsource-repo</id>
            <name>SpringSource Repository</name>
            <url>http://repo.springsource.org/release</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!-- Dynamic Web Module 3.0 with JSTL -->
        <!--<dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.0.1</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>javax.servlet.jsp.jstl-api</artifactId>
            <version>1.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>javax.servlet.jsp.jstl</artifactId>
            <version>1.2.1</version>
        </dependency>-->
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>1.4.7</version>
        </dependency>
        <dependency>
            <groupId>javax.activation</groupId>
            <artifactId>activation</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.2.4</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernateVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${springVersion}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <!--<dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>-->
        <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>
            <scope>runtime</scope>
        </dependency>
    </dependencies>
    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <!--<version>3.1</version> -->
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <!--<version>2.4</version> -->
                <configuration>
                    <warSourceDirectory>WebContent</warSourceDirectory>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
            <!--<plugin>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>9.0.6.v20130930</version>
                <configuration>
                    <httpConnector>
                        <port>8080</port>
                        <host>localhost</host>
                    </httpConnector>
                    <scanIntervalSeconds>10</scanIntervalSeconds>
                </configuration>
            </plugin>-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.16</version>
                <dependencies>
                    <dependency>
                        <groupId>org.apache.maven.surefire</groupId>
                        <artifactId>surefire-junit47</artifactId>
                        <version>2.16</version>
                    </dependency>
                </dependencies>
            </plugin>
            <!--<plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
            </plugin>-->
            <plugin>
                <artifactId>maven-eclipse-plugin</artifactId>
                <version>2.9</version>
                <configuration>
                    <downloadJavadocs>true</downloadJavadocs>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>