java javax.el.ELException：未找到提供程序 com.sun.el.ExpressionFactoryImpl
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/39976835/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
提示：将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间：2020-11-03 04:49:48 来源:igfitidea点击:
javax.el.ELException: Provider com.sun.el.ExpressionFactoryImpl not found
提问by Viktor V.
Despite a lot of problem solutions I have stuck on the problem with ELException:
尽管有很多问题解决方案，但我仍然坚持解决以下问题ELException：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tilesConfigurer' defined in ServletContext resource [/WEB-INF/tiles-context.xml]: Invocation of init method failed; nested exception is javax.el.ELException: Provider com.sun.el.ExpressionFactoryImpl not found
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactorygetObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4853)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:940)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1816)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.el.ELException: Provider com.sun.el.ExpressionFactoryImpl not found
at javax.el.FactoryFinder.newInstance(FactoryFinder.java:101)
at javax.el.FactoryFinder.find(FactoryFinder.java:197)
at javax.el.ExpressionFactory.newInstance(ExpressionFactory.java:197)
at javax.el.ExpressionFactory.newInstance(ExpressionFactory.java:168)
at org.apache.jasper.runtime.JspApplicationContextImpl.<init>(JspApplicationContextImpl.java:46)
at org.apache.jasper.runtime.JspApplicationContextImpl.getInstance(JspApplicationContextImpl.java:76)
at org.apache.jasper.runtime.JspFactoryImpl.getJspApplicationContext(JspFactoryImpl.java:217)
at org.springframework.web.servlet.view.tiles3.TilesConfigurer$TilesElActivator.createEvaluator(TilesConfigurer.java:407)
at org.springframework.web.servlet.view.tiles3.TilesConfigurer$SpringTilesContainerFactory.createAttributeEvaluatorFactory(TilesConfigurer.java:374)
at org.apache.tiles.factory.BasicTilesContainerFactory.createContainer(BasicTilesContainerFactory.java:88)
at org.springframework.web.servlet.view.tiles3.TilesConfigurer$SpringTilesContainerFactory.createContainer(TilesConfigurer.java:296)
at org.apache.tiles.startup.AbstractTilesInitializer.createContainer(AbstractTilesInitializer.java:114)
at org.apache.tiles.startup.AbstractTilesInitializer.initialize(AbstractTilesInitializer.java:64)
at org.springframework.web.servlet.view.tiles3.TilesConfigurer.afterPropertiesSet(TilesConfigurer.java:270)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
... 25 more
Caused by: java.lang.ClassNotFoundException: com.sun.el.ExpressionFactoryImpl
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1333)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)
at javax.el.FactoryFinder.newInstance(FactoryFinder.java:87)
... 40 more
I'm sure that it isn't due to any user impact in web application code since another server with the same application is running well and both app's code is identical. Both servers` environments looks identical as well.
我确信这不是由于 Web 应用程序代码中的任何用户影响，因为具有相同应用程序的另一台服务器运行良好，并且两个应用程序的代码是相同的。两台服务器的环境看起来也一样。
I'm using Apache Tomcat/8.0.37and oracle-java8-jdk-amd64.
我正在使用Apache Tomcat/8.0.37和oracle-java8-jdk-amd64。
Below is the list of WEB-INF\libused libraries:
以下是WEB-INF\lib使用的库列表：
activation-1.1.jar hibernate-c3p0-4.2.7.Final.jar lucene-analyzers-3.6.2.jar slf4j-simple-1.7.7.jar tiles-autotag-core-runtime-1.1.0.jar
amqp-client-3.3.4.jar hibernate-commons-annotations-4.0.2.Final.jar lucene-core-3.6.2.jar snakeyaml-1.11.jar tiles-compat-3.0.3.jar
antlr-2.7.7.jar hibernate-core-4.2.7.Final.jar lucene-facet-3.6.2.jar solr-analysis-extras-3.6.2.jar tiles-core-3.0.3.jar
aopalliance-1.0.jar hibernate-entitymanager-4.2.7.Final.jar lucene-grouping-3.6.2.jar solr-core-3.6.2.jar tiles-el-3.0.3.jar
asm-4.2.jar hibernate-jpa-2.0-api-1.0.1.Final.jar lucene-highlighter-3.6.2.jar solr-solrj-3.6.2.jar tiles-extras-3.0.3.jar
avro-1.7.5.jar hibernate-search-4.4.0.Final.jar lucene-kuromoji-3.6.2.jar spring-amqp-1.3.5.RELEASE.jar tiles-freemarker-3.0.3.jar
c3p0-0.9.1.1.jar hibernate-search-analyzers-4.4.0.Final.jar lucene-memory-3.6.2.jar spring-aop-4.0.3.RELEASE.jar tiles-jsp-3.0.3.jar
c3p0-0.9.2.1.jar hibernate-search-engine-4.4.0.Final.jar lucene-misc-3.6.2.jar spring-beans-4.0.3.RELEASE.jar tiles-mvel-3.0.3.jar
cas-client-core-3.1.12.jar hibernate-search-orm-4.4.0.Final.jar lucene-phonetic-3.6.2.jar spring-context-4.0.3.RELEASE.jar tiles-ognl-3.0.3.jar
cassandra-driver-core-2.1.2.jar hibernate-validator-5.1.0.Final.jar lucene-smartcn-3.6.2.jar spring-context-support-4.0.3.RELEASE.jar tiles-request-api-1.0.3.jar
cassandra-driver-dse-2.1.2.jar httpclient-4.3.3.jar lucene-spatial-3.6.2.jar spring-core-4.0.3.RELEASE.jar tiles-request-freemarker-1.0.3.jar
cglib-3.1.jar httpcore-4.3.2.jar lucene-spellchecker-3.6.2.jar spring-cql-1.1.0.RELEASE.jar tiles-request-jsp-1.0.3.jar
classmate-1.0.0.jar Hymanson-core-asl-1.9.2.jar lucene-stempel-3.6.2.jar spring-data-cassandra-1.1.0.RELEASE.jar tiles-request-mustache-1.0.3.jar
commons-beanutils-1.9.2.jar Hymanson-mapper-asl-1.9.12.jar lz4-1.2.0.jar spring-data-commons-1.9.0.RELEASE.jar tiles-request-servlet-1.0.3.jar
commons-codec-1.6.jar javaee-api-7.0.jar mail-1.4.7.jar spring-expression-4.0.3.RELEASE.jar tiles-request-servlet-wildcard-1.0.3.jar
commons-collections-3.2.1.jar javassist-3.18.1-GA.jar mchange-commons-java-0.2.3.4.jar spring-jdbc-4.0.3.RELEASE.jar tiles-request-velocity-1.0.3.jar
commons-compress-1.4.1.jar javassist-3.7.ga.jar metrics-core-3.0.2.jar spring-jms-4.0.3.RELEASE.jar tiles-servlet-3.0.3.jar
commons-dbcp-1.4.jar javax.mail-1.5.0.jar mvel2-2.0.11.jar spring-orm-4.0.3.RELEASE.jar tiles-template-3.0.3.jar
commons-digester-2.0.jar jawr-3.3.3.jar netty-3.9.0.Final.jar spring-rabbit-1.3.5.RELEASE.jar tiles-velocity-3.0.3.jar
commons-io-2.4.jar jboss-logging-3.1.3.GA.jar ognl-2.7.3.jar spring-retry-1.1.0.RELEASE.jar validation-api-1.1.0.Final.jar
commons-lang-2.6.jar jboss-transaction-api_1.1_spec-1.0.1.Final.jar oro-2.0.8.jar spring-security-cas-3.1.4.RELEASE.jar velocity-1.6.2.jar
commons-lang3-3.3.2.jar jcl-over-slf4j-1.7.12.jar paranamer-2.3.jar spring-security-config-3.1.4.RELEASE.jar velocity-tools-2.0.jar
commons-logging-1.1.3.jar jna-4.0.0.jar poi-3.10-FINAL.jar spring-security-core-3.1.4.RELEASE.jar waffle-jna-1.7.jar
commons-pool-1.5.4.jar jna-platform-4.1.0.jar poi-ooxml-3.10-FINAL.jar spring-security-web-3.1.4.RELEASE.jar
compiler-0.8.4.jar jstl-1.2.jar poi-ooxml-schemas-3.10-FINAL.jar spring-tx-4.0.3.RELEASE.jar xmlbeans-2.3.0.jar
dom4j-1.6.1.jar liquibase-core-3.1.1.jar postgresql-9.4-1200-jdbc41.jar spring-web-4.0.3.RELEASE.jar
ehcache-2.8.3.jar log4j-over-slf4j-1.7.7.jar quartz-2.2.1.jar spring-webmvc-4.0.3.RELEASE.jar
freemarker-2.3.20.jar logback-classic-1.1.3.jar stax-api-1.0.1.jar
guava-16.0.jar logback-core-1.1.3.jar slf4j-api-1.7.5.jar tiles-api-3.0.3.jar
Below is the list of /usr/share/javalibraries which are used by Tomcat8:
以下是/usr/share/javaTomcat8 使用的库列表：
commons-dbcp-1.4.jar jsp-api-2.3.jar tomcat8-catalina.jar tomcat8-i18n-fr-8.0.37.jar tomcat8-jni.jar tomcat8-util-scan-8.0.37.jar
commons-dbcp.jar libintl.jar tomcat8-catalina-storeconfig-8.0.37.jar tomcat8-i18n-fr.jar tomcat8-jsp-api-8.0.37.jar tomcat8-util-scan.jar
commons-pool-1.6.jar tomcat8-annotations-api-8.0.37.jar tomcat8-catalina-storeconfig.jar tomcat8-i18n-ja-8.0.37.jar tomcat8-jsp-api.jar tomcat8-websocket-8.0.37.jar
commons-pool.jar tomcat8-annotations-api.jar tomcat8-coyote-8.0.37.jar tomcat8-i18n-ja.jar tomcat8-juli-8.0.37.jar tomcat8-websocket-api-8.0.37.jar
ecj.jar tomcat8-api-8.0.37.jar tomcat8-coyote.jar tomcat8-jasper-8.0.37.jar tomcat8-juli.jar tomcat8-websocket-api.jar
eclipse-ecj-3.11.0.jar tomcat8-api.jar tomcat8-dbcp-8.0.37.jar tomcat8-jasper-el-8.0.37.jar tomcat8-servlet-api-8.0.37.jar tomcat8-websocket.jar
eclipse-ecj.jar tomcat8-catalina-8.0.37.jar tomcat8-dbcp.jar tomcat8-jasper-el.jar tomcat8-servlet-api.jar
el-api-3.0.jar tomcat8-catalina-ant-8.0.37.jar tomcat8-el-api-8.0.37.jar tomcat8-jasper.jar tomcat8-tribes-8.0.37.jar
el-impl-2.2.jar tomcat8-catalina-ant.jar tomcat8-el-api.jar tomcat8-jdbc-8.0.37.jar tomcat8-tribes.jar
java_defaults.mk tomcat8-catalina-ha-8.0.37.jar tomcat8-i18n-es-8.0.37.jar tomcat8-jdbc.jar tomcat8-util-8.0.37.jar
javaee-api-7.0.jar tomcat8-catalina-ha.jar tomcat8-i18n-es.jar tomcat8-jni-8.0.37.jar tomcat8-util.jar
I`ve add el-api, el-impl and jsp-api to /usr/share/java due to errors that these libraries couldn't be found in /usr/share/java.
由于在 /usr/share/java 中找不到这些库的错误，我已将 el-api、el-impl 和 jsp-api 添加到 /usr/share/java。
POM:
聚甲醛：
<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>org.company.test</groupId>
<artifactId>app</artifactId>
<version>0.1.0-SNAPSHOT</version>
<packaging>war</packaging>
<url>http://maven.apache.org</url>
<prerequisites>
<maven>3.0.0</maven>
</prerequisites>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<springframework.version>4.0.3.RELEASE</springframework.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-servlet-api</artifactId>
<version>8.0.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>3.0.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.3.3</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.2.7.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.2.7.Final</version>
</dependency>
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-extras</artifactId>
<version>3.0.3</version>
<exclusions>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
<exclusion>
<artifactId>guava</artifactId>
<groupId>com.google.guava</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<dependency>
<groupId>net.jawr</groupId>
<artifactId>jawr</artifactId>
<version>3.3.3</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-cas</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${springframework.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.10-FINAL</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
<version>8.0.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.3.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.10-FINAL</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>16.0</version>
</dependency>
<dependency>
<groupId>org.cassandraunit</groupId>
<artifactId>cassandra-unit-spring</artifactId>
<version>2.0.2.1</version>
<scope>test</scope>
<exclusions>
<exclusion>
<artifactId>slf4j-log4j12</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.cassandra</groupId>
<artifactId>cassandra-all</artifactId>
<version>2.1.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.4-1200-jdbc41</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>${project.basedir}/src/main/resources</directory>
<filtering>true</filtering>
</resource>
<resource>
<directory>${project.basedir}/documentation/package/resources</directory>
</resource>
</resources>
<testResources>
<testResource>
<directory>${project.basedir}/src/main/webapp/WEB-INF</directory>
</testResource>
<testResource>
<directory>${project.basedir}/src/test/resources</directory>
</testResource>
<testResource>
<directory>${project.basedir}/documentation/conf</directory>
</testResource>
</testResources>
<testOutputDirectory>target/test-classes</testOutputDirectory>
<testSourceDirectory>${project.basedir}/src/test/java</testSourceDirectory>
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>2.5</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.7</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5</version>
</plugin>
<plugin>
<artifactId>maven-site-plugin</artifactId>
<version>3.3</version>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>prod-resources</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${project.build.outputDirectory}</outputDirectory>
<overwrite>true</overwrite>
<resources>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>**/*.jks</exclude>
<exclude>**/*.xlsx</exclude>
</excludes>
<filtering>true</filtering>
</resource>
<resource>
<directory>documentation/package/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<filters>
<filter>${project.basedir}/src/main/resources/application.properties</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.16</version>
<configuration>
<argLine>-Duser.timezone=UTC -Duser.language=en -Duser.region=US</argLine>
<threadCount>1</threadCount>
<includes>
<include>**/*Tests.java</include>
</includes>
<excludes>
<exclude>**/*IntegrationalTests.java</exclude>
</excludes>
<systemPropertyVariables>
<user.timezone>Etc/UTC</user.timezone>
</systemPropertyVariables>
<!-- <forkCount>3</forkCount> <reuseForks>true</reuseForks> -->
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.4</version>
<configuration>
<webResources>
<resource>
<directory>src/main/jsp</directory>
<targetPath>WEB-INF/jsp</targetPath>
</resource>
<resource>
<directory>src/main/tags</directory>
<targetPath>WEB-INF/tags</targetPath>
</resource>
</webResources>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>cobertura-maven-plugin</artifactId>
<version>2.6</version>
<dependencies>
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm</artifactId>
<version>5.0.3</version>
</dependency>
</dependencies>
<configuration>
<formats>
<format>html</format>
<format>xml</format>
</formats>
<check/>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${springframework.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<reporting>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>cobertura-maven-plugin</artifactId>
<version>2.6</version>
<configuration>
<formats>
<format>html</format>
<format>xml</format>
</formats>
<check/>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-report-plugin</artifactId>
<version>2.16</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.16</version>
</plugin>
</plugins>
</reporting>
</project>
However, I still have problem with finding com.sun.el.ExpressionFactoryImpl
但是，我仍然无法找到 com.sun.el.ExpressionFactoryImpl
回答by peikuo
remove
消除
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>3.0.0</version>
<scope>provided</scope>
</dependency>
For this jar have javax.el.ExpressionFactory
对于这个罐子有 javax.el.ExpressionFactory
and tomcat8-el-api.jarhave the same one.
并tomcat8-el-api.jar有相同的。
This will cause conflict
这会引起冲突
回答by Ali Akbarpour
remove this
删除这个
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>3.0.0</version>
<scope>provided</scope>
</dependency>
and try with
并尝试
<dependency>
<groupId>org.glassfish.web</groupId>
<artifactId>el-impl</artifactId>
<version>2.2</version>
</dependency>
回答by Whome
Same problem I had one legacy installation on Tomcat7+JDK1.8 box where a new webapp was deployed. It was meant to be run on Tomcat9+JDK10 but this box was an exception.
同样的问题我在 Tomcat7+JDK1.8 机器上有一个遗留安装，其中部署了一个新的 webapp。它本来是要在 Tomcat9+JDK10 上运行的，但这个盒子是个例外。
java.lang.NoClassDefFoundError: javax/el/ELManager
org.apache.jasper.JasperException: javax.el.ELException: Provider com.sun.el.ExpressionFactoryImpl not found
I could not update T7+JDK1.8 so instead made this brute-force change.
我无法更新 T7+JDK1.8，因此进行了这种蛮力更改。
rename: tomcat/lib/el-api.jar to el-api.jar_original2.x
add: tomcat/lib/el-api.jar version 3.x
add: tomcat/lib/el-impl-2.2.1-b05.jar version 2.2.x
https://mvnrepository.com/artifact/javax.el/javax.el-api/3.0.1-b06
https://mvnrepository.com/artifact/org.glassfish.web/el-impl/2.2.1-b05
https://mvnrepository.com/artifact/javax.el/javax.el-api/3.0.1-b06
https://mvnrepository.com/artifact/org.glassfish.web/el-impl/2.2.1-b05
回答by UsamaAmjad
I tried all the already answered solutions but none of them work for me on Spring Boot 2.1.3embeddedtomcat. Below dependencies worked for me
我尝试了所有已经回答的解决方案，但在Spring Boot 2.1.3嵌入式tomcat. 以下依赖项对我有用
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.el</artifactId>
</dependency>
