Question

我无法让我的tomcat服务器使用我的WAR文件。我正在使用jersey 1.14并且它在eclipse中通过tomcat 6正常运行。但是当我将战争上传到我的远程tomcat 6服务器时，当我尝试访问该站点时，我收到以下错误。

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet.init() for servlet Jersey REST Service threw exception
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
java.lang.Thread.run(Thread.java:679)
root cause

java.lang.UnsupportedClassVersionError: com/shafer/server/server : Unsupported major.minor version 51.0 (unable to load class com.shafer.server.server)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2822)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:264)
com.sun.jersey.core.reflection.ReflectionHelper.classForNameWithException(ReflectionHelper.java:238)
com.sun.jersey.spi.scanning.AnnotationScannerListener$AnnotatedClassVisitor.getClassForName(AnnotationScannerListener.java:222)
com.sun.jersey.spi.scanning.AnnotationScannerListener$AnnotatedClassVisitor.visitEnd(AnnotationScannerListener.java:186)
org.objectweb.asm.ClassReader.accept(Unknown Source)
org.objectweb.asm.ClassReader.accept(Unknown Source)
com.sun.jersey.spi.scanning.AnnotationScannerListener.onProcess(AnnotationScannerListener.java:136)
com.sun.jersey.core.spi.scanning.uri.FileSchemeScanner$1.f(FileSchemeScanner.java:86)
com.sun.jersey.core.util.Closing.f(Closing.java:71)
com.sun.jersey.core.spi.scanning.uri.FileSchemeScanner.scanDirectory(FileSchemeScanner.java:83)
com.sun.jersey.core.spi.scanning.uri.FileSchemeScanner.scan(FileSchemeScanner.java:71)
com.sun.jersey.core.spi.scanning.PackageNamesScanner.scan(PackageNamesScanner.java:225)
com.sun.jersey.core.spi.scanning.PackageNamesScanner.scan(PackageNamesScanner.java:141)
com.sun.jersey.api.core.ScanningResourceConfig.init(ScanningResourceConfig.java:80)
com.sun.jersey.api.core.PackagesResourceConfig.init(PackagesResourceConfig.java:104)
com.sun.jersey.api.core.PackagesResourceConfig.<init>(PackagesResourceConfig.java:78)
com.sun.jersey.api.core.PackagesResourceConfig.<init>(PackagesResourceConfig.java:89)
com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:700)
com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:678)
com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:203)
com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)
com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:557)
javax.servlet.GenericServlet.init(GenericServlet.java:212)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
java.lang.Thread.run(Thread.java:679)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.35 logs.`

这是我的web xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>shafer</display-name>
  <servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
  <param-name>com.sun.jersey.config.property.packages</param-name>  
  <param-value>com.shafer.server</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/</url-pattern>
 </servlet-mapping>
</web-app>

Answer 1

你的.war是在一个新的JDK下编译的，而不是远程tomcat上可用的JRE。在远程服务器上安装匹配的JRE，或使用正确版本的JDK重新编译项目。

Answer 2

这一行应该给你一个clou：

java.lang.UnsupportedClassVersionError: com/shafer/server/server :
Unsupported major.minor version 51.0
(unable to load class com.shafer.server.server)

什么是com.shafer.server.server？检查库的版本。

Answer 3

UnsupportedClassVersionError意味着该类是使用比您在运行时中使用的Java编译器更新的Java编译器编译的。

我不知道壁炉的版本号，但您应该使用JRE 6或更高版本来运行Tomcat。

tomcat WAR的Jersey错误

3 个答案: