org.glassfish.jersey.servlet.ServletContainer ClassNotFoundException [英] org.glassfish.jersey.servlet.ServletContainer ClassNotFoundException

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问题描述

我一直在用 org.glassfish.jersey.servlet.ServletContainer 得到一个ClassNotFoundException异常，但是当我试图启动/重新启动Tomcat服务器时，它特别在昨晚开始（v7）和Eclipse Juno。



不知道发生了什么事。奇怪的是，它刚刚开始发生在昨天晚上，当它在这之前工作完美。



以下是堆栈跟踪：

  2014年2月25日上午11:11:19 org.apache.catalina.core.ApplicationContext log 
 INFO：标记servlet com.att.ucomm.admin.UCommAdminFunctions as unavailable 
 2014年2月25日上午11:11:19 org.apache.catalina.core.StandardContext loadOnStartup 
 SEVERE：Servlet / UCommAdminFunctions抛出load（）异常
 java.lang.ClassNotFoundException： org.glassfish.jersey.servlet.ServletContainer 
 at org.apache.catalina.loader.WebappClassLoader.loadClass（WebappClassLoader.java:1671）
 at org.apache.catalina.loader.WebappClassLoader.loadClass（WebappClassLoader .java：1516）
 at org.apache.catalina.core.DefaultInstanceManager.loadClass（DefaultInstanceManager.java:415）
 at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged（DefaultInstanceManager.java:397 ）在org.apache.catalina.core上
。 DefaultInstanceManager.newInstance（DefaultInstanceManager.java:118）
 at org.apache.catalina.core.StandardWrapper.loadServlet（StandardWrapper.java:1048）
 at org.apache.catalina.core.StandardWrapper.load（ StandardWrapper.java:996）
 at org.apache.catalina.core.StandardContext.loadOnStartup（StandardContext.java:4762）
 at org.apache.catalina.core.StandardContext.startInternal（StandardContext.java： 5045）
 at org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:140）
 at org.apache.catalina.core.StandardContext.reload（StandardContext.java:3670）
 at org.apache.catalina.loader.WebappLoader.backgroundProcess（WebappLoader.java:424）
 at org.apache.catalina.core.ContainerBase.backgroundProcess（ContainerBase.java:1207）
 at org .apache.catalina.core.ContainerBase $ ContainerBackgroundProcessor.processChildren（ContainerBase.java:1393）
 at org.apache.catalina.core.ContainerBase $ ContainerBackgroundProcessor.processChildren（ContainerBase.java:1403）
 at org.apache.catalina.core.ContainerBase $ ContainerBackgroundProcessor.processChildren（ContainerBase.java:1403）
 at org.apache.catalina.core.ContainerBase $ ContainerBackgroundProcessor.run（ContainerBase.java:1382）
 at java.lang.Thread.run（Unknown Source）
 
 2014年2月25日上午11点11分19秒org.apache.catalina.core.StandardContext重新加载$ ​​b $ b INFO：用名称重新装入上下文[ / UCommAdminFunctions]已完成
 2014年2月25日上午11:13:33 org.apache.catalina.core.StandardWrapperValve调用
 INFO：Servlet com.att.ucomm.admin.UCommAdminFunctions当前不可用

这是我的web.xml 

 <？xml version =1.0encoding =UTF-8？> 
< web-app version =2.5
 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/的JavaEE /网络app_2_5.xsd> 
 
< servlet> 
< servlet-name> com.att.ucomm.admin.UCommAdminFunctions< / servlet-name> 
< servlet-class> org.glassfish.jersey.servlet.ServletContainer< / servlet-class> 
 
 <！ - 如果需要，注册JAX-RS应用程序。 - > 
< init-param> 
< param-name> com.att.ucomm.admin.UCommAdminFunctions< / param-name> 
< param-value> my.package.MyApplication< / param-value> 
< / init-param> 
 
 <！ - 注册my.package下的资源和提供者。 - > 
< init-param> 
< param-name> jersey.config.server.provider.packages< / param-name> 
< param-value> com.att.ucomm.admin< / param-value> 
< / init-param> 
 
<！ - 注册我的自定义提供程序（如果它位于my.package中，则不需要）AND LoggingFilter。 - > 
< init-param> 
< param-name> jersey.config.server.provider.classnames< / param-name> 
< param-value> com.att.ucomm.admin.SecurityRequestFilter; org.glassfish.jersey.filter.LoggingFilter< / param-value> 
< / init-param> 
 
 <！ - 启用跟踪支持。 - > 
< init-param> 
< param-name> jersey.config.server.tracing< / param-name> 
< param-value> ALL< / param-value> 
< / init-param> 
 
<加载启动> 1< /加载启动> 
< / servlet> 
 
< servlet-mapping> 
< servlet-name> com.att.ucomm.admin.UCommAdminFunctions< / servlet-name> 
< url-pattern> / rest / *< / url-pattern> 
< / servlet-mapping> 
< 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> 
< / web-app>

我确保jersey的jar文件仍然存在于WEB-INF / lib中：



解决方案

问题： 

  java.lang.ClassNotFoundException：org.glassfish.jersey.servlet.ServletContainer

表示您尝试使用 Jersey 2.x servlet，但是您正在提供 Jersey 1.x 库。



对于 Jersey 1.x ，您必须这样做： 



 < servlet> 
< servlet-name> Jersey REST服务< / 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> sample.hello.resources< / param-value> 
< / init-param> 
<加载启动> 1< /加载启动> 
< / servlet> 
< servlet-mapping> 
< servlet-name> Jersey REST服务< / servlet-name> 
< url-pattern> / rest / *< / url-pattern> 
< / servlet-mapping>

有关更多信息，请查看 Jersey 1.x文档。



如果您不想使用 Jersey 2.x ，那么您必须提供 Jersey 2.x 库。在基于maven的项目中，您可以使用以下代码： 

 < dependency> 
< groupId> org.glassfish.jersey.containers< / groupId> 
< artifactId> jersey-container-servlet< / artifactId> 
< version> 2.xx< / version> 
< /依赖关系> 
 <！ - 如果您在服务器端使用Jersey客户端特定功能 - > 
< dependency> 
< groupId> org.glassfish.jersey.core< / groupId> 
< artifactId>球衣客户端< / artifactId> 
< version> 2.xx< / version> 
< /依赖关系>

对于 Jersey 2.x ，您无需设置任何内容你的 web.xml ，提供一个类似于这个的类就足够了： 

  import javax.ws.rs.ApplicationPath; 
 import javax.ws.rs.core.Application; 
 
 @ApplicationPath（rest）
 public class ApplicationConfig extends Application {
 
}

有关更多信息，请查看泽西岛文档。

另请参阅： $ b


I have been getting a ClassNotFoundException with org.glassfish.jersey.servlet.ServletContainer but it peculiarly started last night when I tried to start/re-start my Tomcat server (v7) with Eclipse Juno.

Not sure what is going on. What's bizarre is that it just started happening last night while it was working perfectly well before that.

Here is the stacktrace:

Feb 25, 2014 11:11:19 AM org.apache.catalina.core.ApplicationContext log
INFO: Marking servlet com.att.ucomm.admin.UCommAdminFunctions as unavailable
Feb 25, 2014 11:11:19 AM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /UCommAdminFunctions threw load() exception
java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1671)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118    )
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1048)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:996)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4762)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5045)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3670)
at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:424)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1207)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1393)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1403)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1403)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1382)
at java.lang.Thread.run(Unknown Source)

Feb 25, 2014 11:11:19 AM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/UCommAdminFunctions] is completed
Feb 25, 2014 11:13:33 AM org.apache.catalina.core.StandardWrapperValve invoke
INFO: Servlet com.att.ucomm.admin.UCommAdminFunctions is currently unavailable

Here is my web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
    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">

<servlet>
    <servlet-name>com.att.ucomm.admin.UCommAdminFunctions</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>

    <!-- Register JAX-RS Application, if needed. -->
    <init-param>
        <param-name>com.att.ucomm.admin.UCommAdminFunctions</param-name>
        <param-value>my.package.MyApplication</param-value>
    </init-param>

    <!-- Register resources and providers under my.package. -->
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>com.att.ucomm.admin</param-value>
    </init-param>

    <!-- Register my custom provider (not needed if it's in my.package) AND LoggingFilter. -->
    <init-param>
        <param-name>jersey.config.server.provider.classnames</param-name>
        <param-value>com.att.ucomm.admin.SecurityRequestFilter;org.glassfish.jersey.filter.LoggingFilter</param-value>
    </init-param>

    <!-- Enable Tracing support. -->
    <init-param>
        <param-name>jersey.config.server.tracing</param-name>
        <param-value>ALL</param-value>
    </init-param>

    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>com.att.ucomm.admin.UCommAdminFunctions</servlet-name>
    <url-pattern>/rest/*</url-pattern>
</servlet-mapping>
<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>
</web-app>

I made sure that the jar files for jersey were still there in WEB-INF/lib:

解决方案

The problem:

java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer

indicates that you try to use the Jersey 2.x servlet, but you are supplying the Jersey 1.x libs.

For Jersey 1.x you have to do it like this:

<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>sample.hello.resources</param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
  <servlet-name>Jersey REST Service</servlet-name>
  <url-pattern>/rest/*</url-pattern>
</servlet-mapping>

For more information check the Jersey 1.x documentation.

If you instead want to use Jersey 2.x then you'll have to supply the Jersey 2.x libs. In a maven based project you can use the following:

<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
    <artifactId>jersey-container-servlet</artifactId>
    <version>2.xx</version>
</dependency>
<!-- if you are using Jersey client specific features without the server side -->
<dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-client</artifactId>
    <version>2.xx</version>
</dependency>

For Jersey 2.x you don't need to setup anything in your web.xml, it is sufficient to supply a class similar to this:

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;

@ApplicationPath("rest")
public class ApplicationConfig extends Application {

}

For more information, check the Jersey documentation.

See also:

这篇关于org.glassfish.jersey.servlet.ServletContainer ClassNotFoundException的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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