我正在使用Jersey和Maven在Java中构建REST API。我使用Tomcat 9作为服务器。一切正常,直到我今天尝试安装 RestAssured, Hamcrest 和 JUnit 。突然我的所有端点都抛出了500个内部服务器错误。500错误的根本原因是java.lang.NoClassDefFoundError: org/glassfish/jersey/internal/inject/Binder.
java.lang.NoClassDefFoundError: org/glassfish/jersey/internal/inject/Binder.
这2个小时我做了什么:
org/glassfish/jersey/internal/inject/Binder
这个问题使我感到沮丧。知道为什么会发生此错误吗?提前致谢!
这是服务器日志的摘录:
严重:为servlet球衣Web应用程序分配异常java.lang.ClassNotFoundException:org.glassfish.jersey.internal.inject.Binder 在org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1275)在org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1109)在org.glassfish.jersey.servlet.ServletContainer.init (ServletContainer.java:178)在org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:370)在org.apache.catalina.core处的javax.servlet.GenericServlet.init(GenericServlet.java:158)。 org.org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)的org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:779)的StandardWrapper.initServlet(StandardWrapper.java:1183)位于org.apache.catalina.core.StandardContextValve的.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:133)。在org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)处调用(StandardContextValve.java:96)在org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)处org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)上的.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)在org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java) :87),位于org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:498),位于org.apache.coyote.AbstractProcessorLight,位于org.apache.catalina.connector.CoyoteAdapter.java:341。 org.apache.coyote.AbstractProtocol $ ConnectionHandler.process(AbstractProtocol.java :)上的process(AbstractProcessorLight.java:66):796)在org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1368)在org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)在java.util java.util.concurrent.ThreadPoolExecutor $ Worker.run(未知源)的org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run(TaskThread.java:61)处的.concurrent.ThreadPoolExecutor.runWorker(未知源) java.lang.Thread.run(未知源)java.lang.Thread.run上的TaskThread $ WrappingRunnable.run(TaskThread.java:61)(未知源)java.lang.Thread.run上的TaskThread $ WrappingRunnable.run(TaskThread.java:61)(未知源)
以下是我的pom.xml文件:(带有RestAssured,Hamcrest和JUnit)
pom.xml
<dependencies> <dependency> <groupId>org.glassfish.jersey.containers</groupId> <artifactId>jersey-container-servlet-core</artifactId> <!-- use the following artifactId if you don't need servlet 2.x compatibility --> <!-- artifactId>jersey-container-servlet</artifactId --> </dependency> <dependency> <groupId>org.glassfish.jersey.media</groupId> <artifactId>jersey-media-moxy</artifactId> </dependency> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> <version>2.8.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.6</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <dependency> <groupId>org.hamcrest</groupId> <artifactId>hamcrest-all</artifactId> <version>1.3</version> <scope>test</scope> </dependency> <dependency> <groupId>com.jayway.restassured</groupId> <artifactId>rest-assured</artifactId> <version>2.9.0</version> <scope>test</scope> </dependency> </dependencies>
以下是我的web.xml文件:
<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>Jersey Web Application</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.accelbyte.vincent.emailist.resources</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Jersey Web Application</servlet-name> <url-pattern>/webapi/*</url-pattern> </servlet-mapping>
下面是我的项目结构:
电子邮件列表项目结构
核心Jersey和Jersey导入Binder该类的扩展库之一之间很可能存在版本不匹配的情况。确保所有与Jersey相关的模块都有明确的版本(并且彼此匹配)。甚至更好的是,通过导入jersey- bom来修复您的版本。例如:
Jersey
Binder
<dependencyManagement> <dependencies> <dependency> <groupId>org.glassfish.jersey</groupId> <artifactId>jersey-bom</artifactId> <version>2.26-b03</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement>
之后,您的主要<dependencies>部分可能会省略版本。
<dependencies>