我正在尝试按照本教程创建简单的REST Web服务,但是我将其部署在tomcat上并抛出异常:
FAIL - Application at context path /restful could not be started FAIL - Encountered exception org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/restful]]
我看了看周围的解决方案,发现这个问题他们让我觉得这是一个servlet的映射问题但是我不知道如何解决它!
这是我的日志文件:
18/12/2012 9:57:16 AM org.apache.catalina.startup.HostConfig deployWAR SEVERE: Error deploying web application archive /opt/tomcat7/webapps/restful.war java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/restful]] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:904) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1655) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619)
这是我的web.xml文件:
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" version="3.0" 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_3_0.xsd"> <servlet> <servlet-name>RestfulContainer</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>com.mcnz.ws</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>RestfulContainer</servlet-name> <url-pattern>/resources/*</url-pattern> </servlet-mapping> </web-app>
冒着给您太多信息的危险,这是我的文件夹结构的ls:
.: WEB-INF ./WEB-INF: classes lib web.xml ./WEB-INF/classes: com ./WEB-INF/classes/com: mcnz ./WEB-INF/classes/com/mcnz: ws ./WEB-INF/classes/com/mcnz/ws: HelloWorldResource.class HelloWorldResource.java ./WEB-INF/lib: asm-3.1.jar jackson-core-asl-1.9.2.jar jackson-jaxrs-1.9.2.jar jackson-mapper-asl-1.9.2.jar jackson-xc-1.9.2.jar jersey-client-1.16.jar jersey-core-1.16.jar jersey-json-1.16.jar jersey-server-1.16.jar jettison-1.1.jar jsr311-api-1.1.1.jar
如上面的注释所示,问题出在应用程序web.xml引用了servlet定义中的java类。通过确保应用程序实际包含该类来解决此问题。找到缺少的jar文件,并将其放在WEB-INF / lib目录中。