grails运行应用程序可以运行，但不能运行war(war部署失败)

Question

我在尝试执行grails run-war时看到以下错误消息。它与grails run-app配合良好。后来我意识到它不仅仅和圣杯有关。即使我创建了war并将其部署在tomcat上，我也会看到同样的错误消息。但不确定如何调试更多。看起来与tomcat默认jar有某种冲突。

Grails version: 2.5.2
Tomcat Version: `build ":tomcat:7.0.55.3"`
|Done creating WAR target/ROOT.war
|Running Grails application
    A child container failed during start
    java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/sms]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:816)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/sms]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    ... 6 more
    Caused by: java.lang.NullPointerException
    at org.springframework.boot.cli.app.SpringApplicationWebApplicationInitializer.getSources(SpringApplicationWebApplicationInitializer.java:62)
    at org.springframework.boot.cli.app.SpringApplicationWebApplicationInitializer.onStartup(SpringApplicationWebApplicationInitializer.java:48)
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5479)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 6 more
    A child container failed during start
    java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:739)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341)
    at org.grails.plugins.tomcat.fork.TomcatWarRunner.doStart(TomcatWarRunner.groovy:114)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:210)
    at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:59)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:52)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:154)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:182)
    at org.grails.plugins.tomcat.TomcatServer.start(TomcatServer.groovy:141)
    at grails.web.container.EmbeddableServer$start.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
    at org.grails.plugins.tomcat.fork.ForkedTomcatServer.runInternal(ForkedTomcatServer.groovy:86)
    at org.grails.plugins.tomcat.fork.ForkedTomcatServer.run(ForkedTomcatServer.groovy:66)
    at org.grails.plugins.tomcat.fork.ForkedTomcatServer$run.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
    at org.grails.plugins.tomcat.fork.ForkedTomcatServer.main(ForkedTomcatServer.groovy:60)
    Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:816)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 6 more
    | Error Error loading Tomcat: Failed to start component [StandardServer[-1]] (Use --stacktrace to see the full trace)
    Error |
    Forked Grails VM exited with error

Answer 1

最终实现了导致此问题的spring-boot-cli-1.3.1.RELEASE.jar jar。我认为下载是以下依赖项的一部分。

<dependency>
   <groupId>org.grails</groupId>
   <artifactId>gorm-hibernate4-spring-boot</artifactId>
   <version>5.0.8.RELEASE</version>
</dependency>

将上面的内容更改为下面的内容解决了问题。

<dependency>
   <groupId>org.grails</groupId>
   <artifactId>gorm-hibernate4-spring-boot</artifactId>
   <version>5.0.8.RELEASE</version>
   <scope>provided</scope>
</dependency>

我认为这个jar与tomcat引导过程冲突。有关更多信息，请遵循以下线程。

启动java.util.courrent.ExecutionException 时，子容器失败

java.lang.ClassNotFoundException：HttpServlet请求

Answer 2

如果在Tomcat中初始化war时，由于grails-shell依赖关系与spring-boot-cli冲突，Grails 5及更高版本遇到此错误，则可以通过对build.gradle进行以下更改来解决此问题：

1.使用rootSpec.exclude:

bootWar {
    rootSpec.exclude("**/spring-boot-cli-*.jar")
}

2.类路径筛选：

bootWar {
    classpath = classpath.filter { !it.name.startsWith("spring-boot-cli") }
}

3.使用具有flag属性的configurations exclude：

首先，将deploy属性（-Pdeploy）设置为构建命令中的标志。然后，使用以下代码块来排除有问题的依赖项：

if (hasProperty('deploy')) {
    configurations.configureEach {
        exclude group: "org.grails", module: "grails-shell"
    }
}

这些更改应该有助于解决依赖冲突，并使您的应用程序能够顺利使用Grails 5及以上版本。请确保将这些更改应用于build.gradle文件并重新生成项目以查看效果。