java - 带有 Jersey 和 tomcat 错误 : 404 的 Restful Web 服务

Question

我正在使用 Eclipse 创建动态 Web 项目。我正在使用 tomcat 7，我已经包含了来自 jersey 的 jar ，这是 jar :

aopalliance-repackaged-2.4.0-b31.jar
asm-debug-all-5.0.4.jar
hk2-api-2.4.0-b31.jar
hk2-locator-2.4.0-b31.jar
hk2-utils-2.4.0-b31.jar
javassist-3.18.1-GA.jar
javax.annotation-api-1.2.jar
javax.inject-2.4.0-b31.jar
javax.servlet-api-3.0.1.jar
javax.ws.rs-api-2.0.1.jar
jaxb-api-2.2.7.jar
jersey-client.jar
jersey-common.jar
jersey-container-servlet-core.jar
jersey-container-servlet.jar
jersey-guava-2.21.jar
jersey-media-jaxb.jar
jersey-server.jar
org.osgi.core-4.2.0.jar
osgi-resource-locator-1.0.1.jar
persistence-api-1.0.jar
validation-api-1.1.0.Final.jar

我的 xml 是:

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>RESTful Jersey Hello World</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>

  <servlet>
    <servlet-name>Restful</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>com.lorenzo.rest</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Restful</servlet-name>
    <url-pattern>/rest/*</url-pattern>
  </servlet-mapping>
</web-app>

当运行我的项目时，轨迹是这样的:

set 21, 2015 12:30:52 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
AVVERTENZA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:Restful' did not find a matching property.
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Server version:        Apache Tomcat/7.0.64
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Server built:          Aug 19 2015 17:18:06 UTC
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Server number:         7.0.64.0
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: OS Name:               Windows XP
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: OS Version:            5.1
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Architecture:          x86
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Java Home:             C:\Programmi\Java\jdk1.8.0_60\jre
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: JVM Version:           1.8.0_60-b27
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: JVM Vendor:            Oracle Corporation
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: CATALINA_BASE:         C:\Documents and Settings\gcappella\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: CATALINA_HOME:         C:\Programmi\Apache Software Foundation\Tomcat 7.0
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Dcatalina.base=C:\Documents and Settings\gcappella\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Dcatalina.home=C:\Programmi\Apache Software Foundation\Tomcat 7.0
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Dwtp.deploy=C:\Documents and Settings\gcappella\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2\wtpwebapps
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Djava.endorsed.dirs=C:\Programmi\Apache Software Foundation\Tomcat 7.0\endorsed
set 21, 2015 12:30:52 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAZIONI: Command line argument: -Dfile.encoding=Cp1252
set 21, 2015 12:30:52 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFORMAZIONI: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Programmi\Java\jdk1.8.0_60\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Programmi/Java/jdk1.8.0_60/bin/../jre/bin/client;C:/Programmi/Java/jdk1.8.0_60/bin/../jre/bin;C:/Programmi/Java/jdk1.8.0_60/bin/../jre/lib/i386;C:\Programmi\Java\jdk1.8.0_60\bin;C:\oracle\ora92\bin;C:\Programmi\Oracle\jre\1.1.8\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Programmi\NTRU Cryptosystems\NTRU TCG Software Stack\bin\;C:\Programmi\Wave Systems Corp\Gemalto\Access Client\v5\;C:\Programmi\Gemplus\GemSafe Libraries\BIN;C:\Programmi\File comuni\Roxio Shared\DLLShared\;C:\Programmi\File comuni\Roxio Shared\9.0\DLLShared\;C:\Programmi\ZipGenius 6\;c:\Programmi\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\Serena\Dimensions 14.1\CM\prog;C:\Programmi\Microsoft\Web Platform Installer\;C:\Programmi\Git\cmd;C:\Programmi\Git\mingw32\bin;C:\Programmi\Git\usr\bin;ANT_HOME%\bin;C:\Programmi\nodejs\;C:\Documents and Settings\gcappella\Dati applicazioni\npm;C:\eclipse;;.
set 21, 2015 12:30:52 PM org.apache.coyote.AbstractProtocol init
INFORMAZIONI: Initializing ProtocolHandler ["http-bio-8080"]
set 21, 2015 12:30:52 PM org.apache.coyote.AbstractProtocol init
INFORMAZIONI: Initializing ProtocolHandler ["ajp-bio-8009"]
set 21, 2015 12:30:52 PM org.apache.catalina.startup.Catalina load
INFORMAZIONI: Initialization processed in 835 ms
set 21, 2015 12:30:52 PM org.apache.catalina.core.StandardService startInternal
INFORMAZIONI: Starting service Catalina
set 21, 2015 12:30:52 PM org.apache.catalina.core.StandardEngine startInternal
INFORMAZIONI: Starting Servlet Engine: Apache Tomcat/7.0.64
set 21, 2015 12:30:53 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFORMAZIONI: validateJarFile(C:\Documents and Settings\gcappella\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2\wtpwebapps\Restful\WEB-INF\lib\javax.servlet-api-3.0.1.jar) - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending class: javax/servlet/Servlet.class
set 21, 2015 12:30:54 PM org.apache.catalina.startup.TldConfig execute
INFORMAZIONI: 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.
set 21, 2015 12:30:55 PM org.apache.coyote.AbstractProtocol start
INFORMAZIONI: Starting ProtocolHandler ["http-bio-8080"]
set 21, 2015 12:30:55 PM org.apache.coyote.AbstractProtocol start
INFORMAZIONI: Starting ProtocolHandler ["ajp-bio-8009"]
set 21, 2015 12:30:55 PM org.apache.catalina.startup.Catalina start
INFORMAZIONI: Server startup in 3587 ms

所以现在我认为我的问题一定在 xml 中...它有什么问题？？？

Answer 1

这应该通过更新您的 Java 版本来解决。

根本原因是 Unsupported major.minor version 51.0。这意味着类 org/glassfish/jersey/servlet/init/JerseyServletContainerInitializer 符合 Java 7。因此使用 Java 7 或更高版本将解决您的问题。