IntelliJ+Maven+Spring+Tomcat項目搭建（MAC）

本文轉載自查看原文 2018-06-03 20:02 2963 spring/ IntelliJ/ 工具類/ tomcat/ servlet/ Spring框架及其應用/ dispatcher/ springmvc/ MAC

1、新建項目

打開idea，通過File->new->project,會彈出如下的信息：

　　接下來點擊下一步，創建項目，點擊“下一步”：

　　選擇默認的Maven以及setting文件，點擊“下一步”：

　　輸入項目名稱以及項目存放位置，點擊“完成”：

　　至此，我們創建項目的步驟就完成了。這時會進入idea，可能需要一定的時間，這個是由於要下載一些包，所以大家耐心的等待。　　

　　當maven 加載完畢會有提示，我們的項目會生成相應的包，如圖：

2、配置maven

　　打開pom.xml, 輸入版本以及配置信息信息。

　　配置dependencies，引入以來的Spring和Spring MVC的包：

　　這里可能需要一定的時間，當下載這些包后，可以在下圖的位置看到相應的jar：

　　詳細配置信息附上代碼：

<?xml version="1.0" encoding="UTF-8"?>

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.houjing</groupId>
  <artifactId>springmvc</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>springmvc Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>

    <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>4.0.1</version>
      <scope>provided</scope>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>5.0.6.RELEASE</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.0.6.RELEASE</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>5.0.6.RELEASE</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/taglibs/standard -->
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>

  </dependencies>

  <build>
    <finalName>springmvc</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.0.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.7.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.20.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

View Code

3、配置web.xml

　　配置攔截請求，其中包括DispatcherServlet以及CharacterEncodeingFilter，請注意servelet-name和filter-name必須一致：

　　附加代碼：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

  <display-name>springmvc</display-name>

  <servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>

  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

</web-app>

View Code

4、配置DispatcherServlet

　　根據web.xml的servlet-name添加mvc-dispatcher-servlet.xml，在WEB-INF，新建mvc-dispatcher-servlet.xml文件。

　　他的前綴dispatcher對應上邊web.xml中配置的servlet（名稱可修改），節選web.xml如下：

<servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

　　輸入名字mvc-dispatcher-servlet：

　　修改mvc-dispatcher-servlet.xml，添加注解掃描和靜態文件的檢查。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 啟動注解驅動的Spring MVC功能，注冊請求url和注解POJO類方法的映射-->
    <mvc:annotation-driven />
    <!-- 啟動包掃描功能，以便注冊帶有@Controller、@Service、@repository、@Component等注解的類成為spring的bean -->
    <context:component-scan base-package="com.houjing.springmvc*" />

    <!-- 靜態資源(js、image等)的訪問 -->
    <mvc:default-servlet-handler/>

    <!-- 開啟注解 -->
    <mvc:annotation-driven/>

    <!--ViewResolver 視圖解析器，在請求時模型視圖名稱添加前后綴-->
    <!--用於支持Servlet、JSP視圖解析-->
    <!--static resource-->
    <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>

5、建立源碼包java

　　MVC框架有model、view、controller三部分組成。model一般為一些基本的Java Bean，view用於進行相應的頁面顯示，controller用於處理網站的請求。

　　在項目的src目錄創建一個包用於存放controller。

　　輸入java：

　　然后新建Controller目錄，並且新建Controller：DemoController.java：

　　代碼如下，會自動跳轉到hello.jsp：

package com.houjing.springmvc.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class DemoController {

    @RequestMapping(value = "/", method = RequestMethod.GET)
    public String printHello(ModelMap model) {
        System.out.println("Welcome to the DemoController!");
        model.addAttribute("msg", "Spring MVC Hello World");
        model.addAttribute("name", "success!");
        return "hello";
    }
}

　　構建hello.jsp：

　　代碼如下：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>${msg}</title>
</head>
<body>
<h1>${msg}</h1>
<span>${name}</span>
</body>
</html>

　　到此基本目錄以及配置構建完成。

5、配置tomcat

　　添加tomcat服務器：

　　進入界面后，點擊左上角的“+”，滑動到底部的tomcat server，選擇local。

　　修改名字，配置tomcat的路徑，如下圖，由於我這里之前配置有tomcat8了，所以大家可以按照自己的時間情況添加。

　　配置好后，還需要對我們的程序壓縮包添加tomcat里面：

6、運行程序

　　點擊綠色的按鈕，啟動tomcat：

　　可以在控制台看到：

/Volumes/work/apache-tomcat-9.0.8/bin/catalina.sh run
[2018-06-03 07:42:20,786] Artifact springmvc:war: Waiting for server connection to start artifact deployment...
NOTE: Picked up JDK_JAVA_OPTIONS:  --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
03-Jun-2018 19:42:22.658 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/9.0.8
03-Jun-2018 19:42:22.666 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Apr 27 2018 19:32:00 UTC
03-Jun-2018 19:42:22.667 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         9.0.8.0
03-Jun-2018 19:42:22.667 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Mac OS X
03-Jun-2018 19:42:22.668 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            10.13.4
03-Jun-2018 19:42:22.668 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          x86_64
03-Jun-2018 19:42:22.668 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /Library/Java/JavaVirtualMachines/jdk-10.0.1.jdk/Contents/Home
03-Jun-2018 19:42:22.668 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           10.0.1+10
03-Jun-2018 19:42:22.670 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            "Oracle Corporation"
03-Jun-2018 19:42:22.670 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /Users/houjing/Library/Caches/IntelliJIdea2018.1/tomcat/Unnamed_springmvc
03-Jun-2018 19:42:22.670 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /Volumes/work/apache-tomcat-9.0.8
03-Jun-2018 19:42:22.672 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.lang=ALL-UNNAMED
03-Jun-2018 19:42:22.672 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.io=ALL-UNNAMED
03-Jun-2018 19:42:22.673 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
03-Jun-2018 19:42:22.673 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/Users/houjing/Library/Caches/IntelliJIdea2018.1/tomcat/Unnamed_springmvc/conf/logging.properties
03-Jun-2018 19:42:22.673 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
03-Jun-2018 19:42:22.673 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote=
03-Jun-2018 19:42:22.673 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.port=1099
03-Jun-2018 19:42:22.673 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.ssl=false
03-Jun-2018 19:42:22.674 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.authenticate=false
03-Jun-2018 19:42:22.674 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.rmi.server.hostname=127.0.0.1
03-Jun-2018 19:42:22.674 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
03-Jun-2018 19:42:22.674 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
03-Jun-2018 19:42:22.675 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dorg.apache.catalina.security.SecurityListener.UMASK=0027
03-Jun-2018 19:42:22.675 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
03-Jun-2018 19:42:22.675 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/Users/houjing/Library/Caches/IntelliJIdea2018.1/tomcat/Unnamed_springmvc
03-Jun-2018 19:42:22.675 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/Volumes/work/apache-tomcat-9.0.8
03-Jun-2018 19:42:22.675 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/Volumes/work/apache-tomcat-9.0.8/temp
03-Jun-2018 19:42:22.675 信息 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/houjing/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
03-Jun-2018 19:42:22.742 信息 [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
03-Jun-2018 19:42:22.758 信息 [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
03-Jun-2018 19:42:22.768 信息 [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
03-Jun-2018 19:42:22.769 信息 [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
03-Jun-2018 19:42:22.769 信息 [main] org.apache.catalina.startup.Catalina.load Initialization processed in 862 ms
03-Jun-2018 19:42:22.915 信息 [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
03-Jun-2018 19:42:22.916 信息 [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/9.0.8
03-Jun-2018 19:42:22.937 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
03-Jun-2018 19:42:22.991 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
03-Jun-2018 19:42:22.994 信息 [main] org.apache.catalina.startup.Catalina.start Server startup in 224 ms
Connected to server
[2018-06-03 07:42:23,443] Artifact springmvc:war: Artifact is being deployed, please wait... 03-Jun-2018 19:42:24.782 信息 [RMI TCP Connection(2)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
03-Jun-2018 19:42:24.986 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.web.servlet.FrameworkServlet.initServletBean FrameworkServlet 'mvc-dispatcher': initialization started
03-Jun-2018 19:42:25.015 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.context.support.AbstractApplicationContext.prepareRefresh Refreshing WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Sun Jun 03 19:42:25 CST 2018]; root of context hierarchy
03-Jun-2018 19:42:25.067 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]
03-Jun-2018 19:42:25.380 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.beans.factory.support.DefaultListableBeanFactory.registerBeanDefinition Overriding bean definition for bean 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping' with a different definition: replacing [Root bean: class [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Root bean: class [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null]
03-Jun-2018 19:42:25.380 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.beans.factory.support.DefaultListableBeanFactory.registerBeanDefinition Overriding bean definition for bean 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter' with a different definition: replacing [Root bean: class [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Root bean: class [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null]
03-Jun-2018 19:42:25.380 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.beans.factory.support.DefaultListableBeanFactory.registerBeanDefinition Overriding bean definition for bean 'mvcUriComponentsContributor' with a different definition: replacing [Root bean: class [org.springframework.web.servlet.config.AnnotationDrivenBeanDefinitionParser$CompositeUriComponentsContributorFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Root bean: class [org.springframework.web.servlet.config.AnnotationDrivenBeanDefinitionParser$CompositeUriComponentsContributorFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null]
03-Jun-2018 19:42:25.793 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$MappingRegistry.register Mapped "{[/],methods=[GET]}" onto public java.lang.String com.houjing.springmvc.controller.DemoController.printHello(org.springframework.ui.ModelMap)
03-Jun-2018 19:42:25.877 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.initControllerAdviceCache Looking for @ControllerAdvice: WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Sun Jun 03 19:42:25 CST 2018]; root of context hierarchy
03-Jun-2018 19:42:25.934 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.initControllerAdviceCache Looking for @ControllerAdvice: WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Sun Jun 03 19:42:25 CST 2018]; root of context hierarchy
03-Jun-2018 19:42:26.000 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler Mapped URL path [/**] onto handler 'org.springframework.web.servlet.resource.DefaultServletHttpRequestHandler#0'
03-Jun-2018 19:42:26.095 信息 [RMI TCP Connection(2)-127.0.0.1] org.springframework.web.servlet.FrameworkServlet.initServletBean FrameworkServlet 'mvc-dispatcher': initialization completed in 1109 ms
[2018-06-03 07:42:26,113] Artifact springmvc:war: Artifact is deployed successfully
[2018-06-03 07:42:26,113] Artifact springmvc:war: Deploy took 2,670 milliseconds
Welcome to the DemoController!
Welcome to the DemoController!

　　接下來會自動跳轉到瀏覽器界面。

7、問題一：NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config

　　現象：

　　使用spring mvc進行開發，使用tomcat容器，通過url映射尋找view的時候，會報錯NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config，如果隨便去找個jstl包過來放入web-inf/lib會報錯，正確的maven引入地址為：

<!-- https://mvnrepository.com/artifact/taglibs/standard -->
<dependency>
  <groupId>taglibs</groupId>
  <artifactId>standard</artifactId>
  <version>1.1.2</version>
</dependency>

<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
</dependency>

　　重啟tomcat服務器即可。

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