我和泽西岛一起尝试Atmosphere能够向用户广播消息.但是,根据对Jersey端点的请求,日志中会出现以下内容并导致servletexception.
SEVERE: The following errors and warnings have been detected with resource and/or provider classes: SEVERE: Missing dependency for method public void org.apache.cxf.jaxrs.provider.JSONProvider.setMessageContext(org.apache.cxf.jaxrs.ext.MessageContext) at parameter at index 7 SEVERE: Missing dependency for field: private org.apache.cxf.jaxrs.ext.MessageContext org.apache.cxf.jaxrs.provider.RequestdispatcherProvider.mc SEVERE: Missing dependency for method public void org.apache.cxf.jaxrs.provider.JAXBElementProvider.setMessageContext(org.apache.cxf.jaxrs.ext.MessageContext) at parameter at index 1 SEVERE: Missing dependency for field: private org.apache.cxf.jaxrs.ext.MessageContext org.apache.cxf.jaxrs.provider.MultipartProvider.mc SEVERE: Missing dependency for method public void org.apache.cxf.jaxrs.provider.JAXBElementProvider.setMessageContext(org.apache.cxf.jaxrs.ext.MessageContext) at parameter at index 13 SEVERE: Missing dependency for field: private org.apache.cxf.jaxrs.ext.MessageContext org.apache.cxf.jaxrs.provider.FormEncodingProvider.mc
stacktrace的一部分:
SEVERE: Allocate exception for servlet AtmosphereServlet javax.servlet.servletexception at org.atmosphere.cpr.AtmosphereServlet.init(AtmosphereServlet.java:540) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173) at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:809)
我正在使用Maven并添加了以下依赖项:
<dependency> <groupId>org.atmosphere</groupId> <artifactId>atmosphere-jersey</artifactId> <version>0.6.3</version> </dependency>
我错过了什么?谢谢!
解决方法
问题显然是应用程序中存在两种JAX-RS实现.这可以通过使Jersey仅扫描包含Rest类的包来解决,因此不知道其他JAX-RS实现.
<servlet> <description>AtmosphereServlet</description> <servlet-name>AtmosphereServlet</servlet-name> <servlet-class>org.atmosphere.cpr.AtmosphereServlet</servlet-class> ... <init-param> <param-name>com.sun.jersey.config.property.packages</ param-name> <param-value>mypackage.with.the.rest.classes</param-value> </init-param> </servlet>
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