Eclipse 命令"；“圣杯运行战争”；抛出错误java.lang.NullPointerException
我正在使用EclipseST3.2.0。这就是我目前所做的：Eclipse 命令"；“圣杯运行战争”；抛出错误java.lang.NullPointerException,eclipse,tomcat,grails,Eclipse,Tomcat,Grails,我正在使用EclipseST3.2.0。这就是我目前所做的： grailsrunapp命令有效 圣杯战争司令部工作 我单独运行Tomcat，并通过Tomcat部署生成的war。我还粘贴了错误（在STS错误报告之后） 我必须使用Maven，所以我执行了命令“grails create pom”， 我添加了“pom true”，如下所述： 我尝试了Maven（添加行“pom-true”）和Now（注释行“pom-true”） 我删除了文件夹：“C:\Users\ch.grails\ivy ca
- 我尝试了Maven（添加行“pom-true”）和Now（注释行“pom-true”）
| Environment set to development.....
| Packaging Grails application....
| Compiling 22 source files.....
| Error 2013-05-16 18:50:20,674 [main] ERROR plugins.DefaultGrailsPlugin - This class is not an ArtefactHandler:org.grails.plugin.resources.artefacts.ResourceMapperArtefactHandler
| Error 2013-05-16 18:50:20,678 [main] ERROR plugins.DefaultGrailsPlugin - This class is not an ArtefactHandler:org.grails.plugin.resources.artefacts.ResourcesArtefactHandler
| Error 2013-05-16 18:50:20,718 [main] ERROR plugins.DefaultGrailsPlugin - This class is not an ArtefactHandler:grails.plugin.cache.CacheConfigArtefactHandler
| Compiling 3 GSP files for package [alojamiento]..
| Compiling 4 GSP files for package [databaseMigration]..
| Building WAR file.....
| Done creating WAR target\Alojamiento-0.1.war
| Error java.lang.NullPointerException
| Error at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
| Error at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
| Error at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
| Error at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
| Error at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:77)
| Error at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:102)
(...)
| Error at org.codehaus.groovy.grails.cli.GrailsScriptRunner.executeWithGantInstance(GrailsScriptRunner.java:768)
| Error at org.codehaus.groovy.grails.cli.GrailsScriptRunner.executeScriptFile(GrailsScriptRunner.java:566)
| Error at org.codehaus.groovy.grails.cli.GrailsScriptRunner.executeScriptWithCaching(GrailsScriptRunner.java:465)
| Error at org.codehaus.groovy.grails.cli.GrailsScriptRunner.executeScriptWithCaching(GrailsScriptRunner.java:416)
| Error at org.grails.ide.api.impl.GrailsConnectorImpl.executeCommand(GrailsConnectorImpl.java:144)
| Error at org.grails.ide.eclipse.longrunning.process.GrailsProcess.run(GrailsProcess.java:126)
| Error at org.grails.ide.eclipse.longrunning.process.GrailsProcess.main(GrailsProcess.java:89)
| Error at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| Error at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
| Error at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
| Error at java.lang.reflect.Method.invoke(Method.java:601)
| Error at org.codehaus.groovy.grails.cli.support.GrailsStarter.rootLoader(GrailsStarter.java:234)
| Error at org.codehaus.groovy.grails.cli.support.GrailsStarter.main(GrailsStarter.java:262)
| Error Caused by: java.lang.NullPointerException
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.createGroovyObjectGetPropertySite(AbstractCallSite.java:254)
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.acceptGroovyObjectGetProperty(AbstractCallSite.java:239)
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:231)
| Error at org.grails.plugins.tomcat.TomcatServer.<init>(TomcatServer.groovy:58)
| Error at org.grails.plugins.tomcat.IsolatedWarTomcatServer.<init>(IsolatedWarTomcatServer.groovy:35)
| Error at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
| Error at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
| Error at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
| Error at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
| Error at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:77)
| Error at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:102)
| Error at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:57)
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:182)
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:194)
| Error at org.grails.plugins.tomcat.TomcatServerFactory.createForWAR(TomcatServerFactory.groovy:88)
| Error at org.codehaus.groovy.grails.project.container.GrailsProjectRunner.runWarInternal(GrailsProjectRunner.groovy:151)
| Error at org.codehaus.groovy.grails.project.container.GrailsProjectRunner.runWar(GrailsProjectRunner.groovy:96)
| Error at org.codehaus.groovy.grails.project.container.GrailsProjectRunner$runWar.call(Unknown Source)
| Error at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
(...)
| Error at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
| Error at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1082)
| Error at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1106)
| Error at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:906)
| Error at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1027)
| Error at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1106)
| Error at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:66)
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
| Error at org.codehaus.gant.GantBinding$_initializeGantBinding_closure5_closure16.doCall(GantBinding.groovy:185)
| Error at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| Error at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
| Error at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
| Error at java.lang.reflect.Method.invoke(Method.java:601)
| Error at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSite.invoke(PogoMetaMethodSite.java:231)
| Error at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:52)
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
| Error at org.codehaus.gant.GantBinding$_initializeGantBinding_closure5_closure16.doCall(GantBinding.groovy)
| Error at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| Error at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
| Error at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
| Error at java.lang.reflect.Method.invoke(Method.java:601)
| Error at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:272)
| Error at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.call(PogoMetaMethodSite.java:64)
| Error at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
| Error at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)
| Error at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)
| Error ... 76 more
may 16, 2013 6:57:17 PM org.apache.catalina.startup.HostConfig deployWAR
INFO: Despliegue del archivo D:\Software\IW-apache-tomcat-7.0.37\webapps\Alojami
ento-0.1.war de la aplicaci¾n web
may 16, 2013 6:57:34 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://www.springframework.org/tags is already defined
2013-05-16 18:57:50,613 [localhost-startStop-1] ERROR context.GrailsContextLoade
r - Error initializing the application: Error creating bean with name 'transact
ionManagerPostProcessor': Initialization of bean failed; nested exception is org
.springframework.beans.factory.BeanCreationException: Error creating bean with n
ame 'transactionManager': Cannot resolve reference to bean 'sessionFactory' whil
e setting bean property 'sessionFactory'; nested exception is org.springframewor
k.beans.factory.BeanCreationException: Error creating bean with name 'sessionFac
tory': Cannot resolve reference to bean 'lobHandlerDetector' while setting bean
property 'lobHandler'; nested exception is org.springframework.beans.factory.Bea
nCreationException: Error creating bean with name 'lobHandlerDetector': Invocati
on of init method failed; nested exception is org.springframework.jdbc.support.M
etaDataAccessException: Error while extracting DatabaseMetaData; nested exceptio
n is org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of cl
ass 'com.mysql.jdbc.Driver' for connect URL 'jdbc:h2:prodDb;MVCC=TRUE'
org.springframework.beans.factory.BeanCreationException: Error creating bean wit
h name 'transactionManagerPostProcessor': Initialization of bean failed; nested
exception is org.springframework.beans.factory.BeanCreationException: Error crea
ting bean with name 'transactionManager': Cannot resolve reference to bean 'sess
ionFactory' while setting bean property 'sessionFactory'; nested exception is or
g.springframework.beans.factory.BeanCreationException: Error creating bean with
name 'sessionFactory': Cannot resolve reference to bean 'lobHandlerDetector' whi
le setting bean property 'lobHandler'; nested exception is org.springframework.b
eans.factory.BeanCreationException: Error creating bean with name 'lobHandlerDet
ector': Invocation of init method failed; nested exception is org.springframewor
k.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData;
nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create J
DBC driver of class 'com.mysql.jdbc.Driver' for connect URL 'jdbc:h2:prodDb;MVCC
=TRUE'
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creati
ng bean with name 'transactionManager': Cannot resolve reference to bean 'sessio
nFactory' while setting bean property 'sessionFactory'; nested exception is org.
springframework.beans.factory.BeanCreationException: Error creating bean with na
me 'sessionFactory': Cannot resolve reference to bean 'lobHandlerDetector' while
setting bean property 'lobHandler'; nested exception is org.springframework.bea
ns.factory.BeanCreationException: Error creating bean with name 'lobHandlerDetec
tor': Invocation of init method failed; nested exception is org.springframework.
jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; n
ested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create JDB
C driver of class 'com.mysql.jdbc.Driver' for connect URL 'jdbc:h2:prodDb;MVCC=T
RUE'
(...)
INFO: Server startup in 39571 ms
INFO: Despliegue del archivo D:\Software\IW-apache-tomcat-7.0.37\webapps\Alojami
ento-0.1.war de la aplicaci¾n web
may 16, 2013 10:09:12 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://www.springframework.org/tags is already defined
2013-05-16 22:09:20,376 [localhost-startStop-1] ERROR plugins.DefaultGrailsPlugi
n - This class is not an ArtefactHandler:org.grails.plugin.resources.artefacts.
ResourceMapperArtefactHandler
2013-05-16 22:09:20,381 [localhost-startStop-1] ERROR plugins.DefaultGrailsPlugi
n - This class is not an ArtefactHandler:org.grails.plugin.resources.artefacts.
ResourcesArtefactHandler
2013-05-16 22:09:20,429 [localhost-startStop-1] ERROR plugins.DefaultGrailsPlugi
n - This class is not an ArtefactHandler:grails.plugin.cache.CacheConfigArtefac
tHandler
2013-05-16 22:09:27,435 [localhost-startStop-1] ERROR context.GrailsContextLoade
r - Error initializing the application: HttpServletRequest
java.lang.NoClassDefFoundError: HttpServletRequest
at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
at java.lang.Class.getDeclaredMethods(Class.java:1810)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:47
1)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassNotFoundException: HttpServletRequest
... 8 more
2013-05-16 22:09:27,439 [localhost-startStop-1] ERROR context.GrailsContextLoade
r - Error initializing Grails: HttpServletRequest
java.lang.NoClassDefFoundError: HttpServletRequest
at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
at java.lang.Class.getDeclaredMethods(Class.java:1810)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:47
1)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassNotFoundException: HttpServletRequest
... 8 more
may 16, 2013 10:09:27 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
may 16, 2013 10:09:27 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Fall¾ en arranque del Contexto [/Alojamiento-0.1] debido a errores previ
os
| Tests FAILED - view reports in D:\ch\eclipse_workspaces\IW-grails\Alojamiento\target\test-reports
| Error java.lang.NullPointerException
| Error at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
| Error at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
| Error at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
| Error at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
发生第二个错误是因为未正确定义数据源： 提取数据库元数据时出错； 嵌套异常为org.apache.commons.dbcp.SQLNestedException:无法创建 用于连接URL“jdbc:h2:prodDb”的类“com.mysql.jdbc.driver”的DBC驱动程序；MVCC =正确' 您正在使用带有MySQL驱动程序（com.MySQL.jdbc.driver）的
h2如果您调整
DataSource.groovy，部署的实例应该可以工作。您是对的。我修复了它，并在最后添加了新的错误更新了问题：（上一个错误发生的原因是我在开发环境中配置了mysql，但是命令“grails-war”使用了生产环境。解决方案：我应该使用“grails-dev-war”而不是“grails-war”。它现在在Tomcat中部署，但是命令“grails run war”仍然失败，并报告了相同的错误。它在以下情况下在Tomcat中工作：1）创建一个空的mysql数据库（grails生成表，但您必须使用提供的相同名称创建一个数据库）。2）确保BuildConfig.groovy依赖项“mysql:mysql connector java:5.1.25”在war中（我注释了这行+dev war+注释掉了这行。运行测试后同样失败。我更新了问题：UPDATE 2d）运行测试后同样失败！您使用的是Grails和JDK的Witch版本吗？Grails 2.2.2.jdk1.7.021您可以尝试使用1.6 JDK吗？同样的错误，所以我返回到默认版本（在我的项目临近时）：J2SE-1.5（jdk1.7.0_21）