Jersey Restful 例外 1答案

【问题标题】：Jersey Restful exception 1Jersey Restful 例外 1
【发布时间】：2017-08-11 08:01:31
【问题描述】：

（Tomcat 7.0）

本地测试网址 - http://localhost:8080/test/algebra/sum?a=1&b=2

得到了：

HTTP Status 500 - Resource configuration class edu.algebra could not be loaded.

type Exception report

message Resource configuration class edu.algebra could not be loaded.

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Resource configuration class edu.algebra could not be loaded.
    org.glassfish.jersey.servlet.WebComponent.createResourceConfig(WebComponent.java:466)
    org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:302)
    org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:168)
    org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:358)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:748)
root cause

**java.lang.ClassNotFoundException: edu.algebra**
    org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
    org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
    java.lang.Class.forName0(Native Method)
    java.lang.Class.forName(Class.java:264)
    org.glassfish.jersey.internal.util.ReflectionHelper$7.run(ReflectionHelper.java:407)
    org.glassfish.jersey.internal.util.ReflectionHelper$7.run(ReflectionHelper.java:397)
    java.security.AccessController.doPrivileged(Native Method)
    org.glassfish.jersey.servlet.WebComponent.createResourceConfig(WebComponent.java:454)
    org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:302)
    org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:168)
    org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:358)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:748)

注意 Apache Tomcat/7.0.56 日志中提供了根本原因的完整堆栈跟踪。

为什么？

【问题讨论】：

标签： java rest tomcat jersey classnotfound

【解决方案1】：

您的文件夹结构不正确。 Java 代码应该在 src 文件夹中，而不是类中。找到一百万个教程“Tomcat 上的 Hello World Web 应用程序”并关注它。例如。 - http://www.srccodes.com/p/article/2/JSP-Hello-World-Program-using-Eclipse-IDE-and-Tomcat-web-server

【讨论】：