Jersey : The ResourceConfig instance does not contain any root resource classes

最新推荐文章于 2022-08-02 10:22:56 发布

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最新推荐文章于 2022-08-02 10:22:56 发布

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分类专栏： jersey--restful ws 文章标签： rest

本文链接：https://blog.youkuaiyun.com/ly279481968/article/details/84690406

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本文介绍了解决在使用Jersey RESTful Web服务时遇到的TheResourceConfiginstancedoesnotcontainanyrootresourceclasses异常的方法。主要原因是配置文件中缺少必要的包声明或者声明的包内未包含任何Jersey服务。

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com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not contain any root resource classes.
	at com.sun.jersey.server.impl.application.RootResourceUriRules.
<init>(RootResourceUriRules.java:99)
	at com.sun.jersey.server.impl.application.WebApplicationImpl.
_initiate(WebApplicationImpl.java:1331)
	at com.sun.jersey.server.impl.application.WebApplicationImpl.access$700
(WebApplicationImpl.java:168)
	at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f
(WebApplicationImpl.java:774)
	at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f
(WebApplicationImpl.java:770)
	at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
	at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate
(WebApplicationImpl.java:770)
	at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate
(WebApplicationImpl.java:765)
	at com.sun.jersey.spi.container.servlet.ServletContainer.initiate
(ServletContainer.java:489)
	at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.
initiate(ServletContainer.java:319)
	at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
	at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:210)
	at com.sun.jersey.spi.container.servlet.ServletContainer.
init(ServletContainer.java:374)
	at com.sun.jersey.spi.container.servlet.ServletContainer.
init(ServletContainer.java:557)
	at javax.servlet.GenericServlet.init(GenericServlet.java:212)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4149)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4458)
	at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3190)
	at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:404)
	at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1309)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.
processChildren(ContainerBase.java:1601)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.
processChildren(ContainerBase.java:1610)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.
processChildren(ContainerBase.java:1610)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.
run(ContainerBase.java:1590)
	at java.lang.Thread.run(Unknown Source)

When you are working with Jersey REST web services, you would encounter the following exception. This is occurred either of two reasons.
[b]1.com.sun.jersey.config.property.packages doesn’t exist in your web.xml.
2.com.sun.jersey.config.property.packages included a package path, but that is not included any jersey services.
If you check the above two reasons and resolve it, the below exception will be resolved.
3.or rename package and start then change back again[/b]