Restful webservices with jersey and tomcat error: 404
Restful webservices with jersey and tomcat error: 404
我正在使用 Eclipse 创建动态 Web 项目。
我正在使用 tomcat 7，我已经包含了球衣的罐子，这是罐子：
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 我的项目跟踪是这样的：
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.1.8\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.0\DLLShared\;C:\Programmi\ZipGenius 6\;c:\Programmi\Microsoft SQL Server\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出在 xml...它有什么问题？？？
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 class 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。
这是你的问题：
Caused by: java.lang.UnsupportedClassVersionError: org/glassfish/jersey/servlet/init/JerseyServletContainerInitializer : Unsupported major.minor version 51.0 (unable to load class org.glassfish.jersey.servlet.init.JerseyServletContainerInitializer)
您需要 higher version JDK。
问题的关键在于日志中的这一行：
Caused by: java.lang.UnsupportedClassVersionError: org/glassfish/jersey/servlet/init/JerseyServletContainerInitializer : Unsupported major.minor version 51.0 (unable to load class org.glassfish.jersey.servlet.init.JerseyServletContainerInitializer)
这意味着 JVM 无法读取已编译的 class 文件，因为它是为比您当前 运行.
版本更新的虚拟机版本编译的
正如您在 Wikipedia, version 51.0 means the class is compiled for Java 7 or up. And indeed, as you can see in the Jersey docs 上看到的那样，从 Jersey 2.6 开始，Java 7 是必需的。
您的日志记录还显示当前使用的 Java 版本：
INFO: JVM Version: 1.6.0_45-b06
这确实太老了。 运行 Java 7 或更高应该可以解决您的问题。
直到 Jersey 2.6 你可以 运行 它与 Java 6(JDK 1.6 ).
版本 2.6 + 之后你需要 (JDK 1.7) Java 7.
供参考：
这是我的项目。它是功能齐全的项目，请参阅下文。
我正在使用 Jersey 2.6，因为我的生产服务器有 Java 6，所以我不得不将它从 Jersey 2.17 降低到 2.6。
我像这样调用我的示例网络服务器
localhost:8080/OrderStatusWebService/rest/test/hello-world
在我的浏览器中
web.xml
<?xml version="1.0" encoding="UTF-8" ?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<display-name>Order Status REST WebService</display-name>
<servlet>
<servlet-name>jersey-serlvet</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer
</servlet-class>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>com.xxx.orderstatus.config.OrderStatusConfig</param-value>
</init-param>
<init-param>
<param-name>jersey.config.server.provider.scanning.recursive</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey-serlvet</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
这是一个示例 Web 服务 class
package com.xxx.orderstatus.webservice;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
@Path("/test")
public class TestWebService
{
@GET
@Path("/hello-world")
public Response checkAuth(@QueryParam("userId") String userId) {
return Response.status(200).entity("Hello").build();
}
}
因为我的是一个 Maven 项目，所以这是我的 POM.xml。 请注意 属性 <finalName>OrderStatusWebService</finalName>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.xxx.orderstatus</groupId>
<artifactId>OrderStatusWebService</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>OrderStatusWebService Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<jdk.version>1.6</jdk.version>
<jstl.version>1.2</jstl.version>
<jcl-over-slf4j.version>1.7.5</jcl-over-slf4j.version>
</properties>
<repositories>
<repository>
<id>codelds</id>
<url>https://code.lds.org/nexus/content/groups/main-repo</url>
</repository>
<repository>
<id>maven2-repository.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
<layout>default</layout>
</repository>
<repository>
<id>snapshot-repository.java.net</id>
<name>Java.net Snapshot Repository for Maven</name>
<url>https://maven.java.net/content/repositories/snapshots/</url>
<layout>default</layout>
</repository>
</repositories>
<dependencies>
<!-- My Dependencies START -->
<!-- Jersey -->
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<!-- if your container implements Servlet API older than 3.0, use "jersey-container-servlet-core" -->
<artifactId>jersey-container-servlet</artifactId>
<version>2.6</version>
</dependency>
<!-- JSTL -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- JDBC -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3</version>
</dependency>
<!-- GSON -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.4</version>
</dependency>
<!-- These jars dont' come by default with the latest Jerser Server Container
Jars -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<!-- Apache Commons Codec -->
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<!-- SLF4j and Log4j Libs -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.12</version>
</dependency>
<!-- Apache Commons IO -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<!-- Multipart Dependencies -->
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-multipart</artifactId>
<version>2.6</version>
</dependency>
<!-- Commons DBCP 1.4 Starts -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<!-- My Dependencies ENDS -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>OrderStatusWebService</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
首先你不应该将下面的库包含到你的类路径中，因为它们
tomcat 库中可用。
javax.servlet-api-3.0.1.jar
此外，请检查 jersey-container-servlet-core.jar，jersey-container-servlet.jar 库在您的情况下确实是必需的，否则最好为您删除那些 jar 的 lib 文件夹项目。
我正在使用 Eclipse 创建动态 Web 项目。 我正在使用 tomcat 7，我已经包含了球衣的罐子，这是罐子：
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 我的项目跟踪是这样的：
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.1.8\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.0\DLLShared\;C:\Programmi\ZipGenius 6\;c:\Programmi\Microsoft SQL Server\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出在 xml...它有什么问题？？？
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 class 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。
这是你的问题：
Caused by: java.lang.UnsupportedClassVersionError: org/glassfish/jersey/servlet/init/JerseyServletContainerInitializer : Unsupported major.minor version 51.0 (unable to load class org.glassfish.jersey.servlet.init.JerseyServletContainerInitializer)
您需要 higher version JDK。
问题的关键在于日志中的这一行：
Caused by: java.lang.UnsupportedClassVersionError: org/glassfish/jersey/servlet/init/JerseyServletContainerInitializer : Unsupported major.minor version 51.0 (unable to load class org.glassfish.jersey.servlet.init.JerseyServletContainerInitializer)
这意味着 JVM 无法读取已编译的 class 文件，因为它是为比您当前 运行.
版本更新的虚拟机版本编译的正如您在 Wikipedia, version 51.0 means the class is compiled for Java 7 or up. And indeed, as you can see in the Jersey docs 上看到的那样，从 Jersey 2.6 开始，Java 7 是必需的。
您的日志记录还显示当前使用的 Java 版本：
INFO: JVM Version: 1.6.0_45-b06
这确实太老了。 运行 Java 7 或更高应该可以解决您的问题。
直到 Jersey 2.6 你可以 运行 它与 Java 6(JDK 1.6 ).
版本 2.6 + 之后你需要 (JDK 1.7) Java 7.
供参考： 这是我的项目。它是功能齐全的项目，请参阅下文。 我正在使用 Jersey 2.6，因为我的生产服务器有 Java 6，所以我不得不将它从 Jersey 2.17 降低到 2.6。
我像这样调用我的示例网络服务器
localhost:8080/OrderStatusWebService/rest/test/hello-world
在我的浏览器中
web.xml
<?xml version="1.0" encoding="UTF-8" ?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<display-name>Order Status REST WebService</display-name>
<servlet>
<servlet-name>jersey-serlvet</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer
</servlet-class>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>com.xxx.orderstatus.config.OrderStatusConfig</param-value>
</init-param>
<init-param>
<param-name>jersey.config.server.provider.scanning.recursive</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey-serlvet</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
这是一个示例 Web 服务 class
package com.xxx.orderstatus.webservice;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
@Path("/test")
public class TestWebService
{
@GET
@Path("/hello-world")
public Response checkAuth(@QueryParam("userId") String userId) {
return Response.status(200).entity("Hello").build();
}
}
因为我的是一个 Maven 项目，所以这是我的 POM.xml。 请注意 属性 <finalName>OrderStatusWebService</finalName>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.xxx.orderstatus</groupId>
<artifactId>OrderStatusWebService</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>OrderStatusWebService Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<jdk.version>1.6</jdk.version>
<jstl.version>1.2</jstl.version>
<jcl-over-slf4j.version>1.7.5</jcl-over-slf4j.version>
</properties>
<repositories>
<repository>
<id>codelds</id>
<url>https://code.lds.org/nexus/content/groups/main-repo</url>
</repository>
<repository>
<id>maven2-repository.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
<layout>default</layout>
</repository>
<repository>
<id>snapshot-repository.java.net</id>
<name>Java.net Snapshot Repository for Maven</name>
<url>https://maven.java.net/content/repositories/snapshots/</url>
<layout>default</layout>
</repository>
</repositories>
<dependencies>
<!-- My Dependencies START -->
<!-- Jersey -->
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<!-- if your container implements Servlet API older than 3.0, use "jersey-container-servlet-core" -->
<artifactId>jersey-container-servlet</artifactId>
<version>2.6</version>
</dependency>
<!-- JSTL -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- JDBC -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3</version>
</dependency>
<!-- GSON -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.4</version>
</dependency>
<!-- These jars dont' come by default with the latest Jerser Server Container
Jars -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<!-- Apache Commons Codec -->
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<!-- SLF4j and Log4j Libs -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.12</version>
</dependency>
<!-- Apache Commons IO -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<!-- Multipart Dependencies -->
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-multipart</artifactId>
<version>2.6</version>
</dependency>
<!-- Commons DBCP 1.4 Starts -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<!-- My Dependencies ENDS -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>OrderStatusWebService</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
首先你不应该将下面的库包含到你的类路径中，因为它们 tomcat 库中可用。 javax.servlet-api-3.0.1.jar
此外，请检查 jersey-container-servlet-core.jar，jersey-container-servlet.jar 库在您的情况下确实是必需的，否则最好为您删除那些 jar 的 lib 文件夹项目。