我使用的是JDK 1.7,Apache Tomcat 7.0.23,我在WEB_INF lib文件夹中放置了JSTL核心库(1.2)和STANDARD jar,它没有给我任何警告,但是当我尝试运行代码时
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!-- Create Bean Instance-->
<jsp:useBean id="listdomain" class="bean.PopulateMultiDomain" scope="session"></jsp:useBean>
<jsp:setProperty property="*" name="listdomain"/>
<c:forEach var="item" items="${listdomain.status}">
<option>
<c:out value="${item}" />
</option>
</c:forEach>
它给了我以下错误:
org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:56)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:410)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:117)
org.apache.jasper.compiler.TagLibraryInfoImpl.generateTLDLocation(TagLibraryInfoImpl.java:311)
org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:152)
org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:410)
org.apache.jasper.compiler.Parser.parseDirective(Parser.java:475)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1425)
org.apache.jasper.compiler.Parser.parse(Parser.java:138)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:242)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:102)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
有谁能告诉我我犯的是什么错误？
我在日志中收到一些警告,如下所示:
java.io.FileNotFoundException: C:\Users\user\.m2\repository\com\lowagie\itext\2.0.8\bcmail-jdk14-138.jar (O sistema não pode encontrar o arquivo especificado)
at java.util.zip.ZipFile.open(Native Method) ~[na:1.8.0_121]
at java.util.zip.ZipFile.<init>(ZipFile.java:219) ~[na:1.8.0_121]
at java.util.zip.ZipFile.<init>(ZipFile.java:149) ~[na:1.8.0_121]
at java.util.jar.JarFile.<init>(JarFile.java:166) ~[na:1.8.0_121]
at java.util.jar.JarFile.<init>(JarFile.java:130) ~[na:1.8.0_121]
at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:48) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:338) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:288) ~[tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:104) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:101) [tomcat-embed-jasper-8.5.6.jar:8.5.6]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5178) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403) [tomcat-embed-core-8.5.6.jar:8.5.6]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) [tomcat-embed-core-8.5.6.jar:8.5.6]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]
在一个独立的tomcat中,我可以创建一个context.xml:
<Context>
...
<JarScanner scanManifest="false"/>
... …这是我的第一个 spring-boot 项目，我在使用 tomcat 时遇到了问题。服务器不想启动。项目中没有使用玻璃鱼，这个消息我越发惊讶。该项目是在 Maven 中创建的。我已经坐了好几个小时了，但我找不到问题所在。任何人都可以帮助我吗？
2019-12-11 16:21:30.775 WARN 10436 --- [ main] o.a.tomcat.util.scan.StandardJarScanner : Failed to scan [file:/C:/Users/maxwell/.m2/repository/org/glassfish/hk2/hk2/2.6.1/hk2-utils.jar] from classloader hierarchy
java.io.IOException: java.lang.reflect.InvocationTargetException
at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:236) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
这是我的 pom.xml 文件：
2019-12-11 16:21:30.775 WARN 10436 --- [ main] o.a.tomcat.util.scan.StandardJarScanner : Failed to scan [file:/C:/Users/maxwell/.m2/repository/org/glassfish/hk2/hk2/2.6.1/hk2-utils.jar] from classloader hierarchy
java.io.IOException: java.lang.reflect.InvocationTargetException
at org.apache.tomcat.util.compat.Jre9Compat.jarFileNewInstance(Jre9Compat.java:236) ~[tomcat-embed-core-9.0.29.jar:9.0.29]