Google app engine Grails,AppEngine,jpa-初学者在使用Grails生成所有
我正试图通过以下几个教程,通过Google App Engine和JPA了解grails:Google app engine Grails,AppEngine,jpa-初学者在使用Grails生成所有,google-app-engine,grails,jpa,Google App Engine,Grails,Jpa,我正试图通过以下几个教程,通过Google App Engine和JPA了解grails: 我有Grails1.3.0RC2和AppEngineSDK1.3.3,我使用的是Windows7。我尝试的步骤是: grails创建应用程序appname cd-appname grails安装插件appengine。当被问及jdo/jpa时,我会回答jpa。它似乎是自动安装gorm jpa插件的,尽管教程都建议手动安装gorm jpa grails安装插件gormjpa(以防万一) grail
grails创建应用程序appname
cd-appname
grails安装插件appengine
。当被问及jdo/jpa时,我会回答jpa。它似乎是自动安装gorm jpa插件的,尽管教程都建议手动安装gorm jpagrails安装插件gormjpa
(以防万一)grails创建域类测试。Person
grails app/domain/test/Person.groovy以添加名称和地址字段:
package test
import javax.persistence.*;
// import com.google.appengine.api.datastore.Key;
@Entity
class Person implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
Long id
@Basic
String name
@Basic
String address
static constraints = {
id visible:false
}
}
grails生成所有test.Person
C:\Users\John\Workspaces\STS\appname>grails generate-all test.Person
Welcome to Grails 1.3.0.RC2 - http://grails.org/
Licensed under Apache Standard License 2.0
Grails home is set to: C:\Users\John\Downloads\grails-1.3.0.RC2\grails-1.3.0.RC2
Base Directory: C:\Users\John\Workspaces\STS\appname
Resolving dependencies...
Dependencies resolved in 493ms.
Running script C:\Users\John\Downloads\grails-1.3.0.RC2\grails-1.3.0.RC2\scripts\GenerateAll.groovy
Environment set to development
[copy] Copied 4 empty directories to 2 empty directories under C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources
[copy] Copied 4 empty directories to 2 empty directories under C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources
[copy] Copied 1 empty directory to 1 empty directory under C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources
[mkdir] Created dir: C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\classes
[groovyc] Compiling 12 source files to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\classes
Note: C:\Users\John\.grails\1.3.0.RC2\projects\appname\plugins\gorm-jpa-0.7.1\src\java\org\grails\jpa\domain\JpaGrailsDomainClass.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
[groovyc] Compiling 8 source files to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\classes
[mkdir] Created dir: C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources\grails-app\i18n
[native2ascii] Converting 13 files from C:\Users\John\Workspaces\STS\appname\grails-app\i18n to C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources\grails-app\i18n
[mkdir] Created dir: C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources\plugins\gorm-jpa-0.7.1\grails-app\i18n
[mkdir] Created dir: C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources\plugins\app-engine-0.8.10\grails-app\i18n
[native2ascii] Converting 1 file from C:\Users\John\.grails\1.3.0.RC2\projects\appname\plugins\gorm-jpa-0.7.1\grails-app\i18n to C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources\plugins\gorm
-jpa-0.7.1\grails-app\i18n
[native2ascii] Converting 1 file from C:\Users\John\.grails\1.3.0.RC2\projects\appname\plugins\app-engine-0.8.10\grails-app\i18n to C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources\plugins\a
pp-engine-0.8.10\grails-app\i18n
[copy] Copying 1 file to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\classes
[copy] Copying 2 files to C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources
[copy] Copied 2 empty directories to 2 empty directories under C:\Users\John\.grails\1.3.0.RC2\projects\appname\resources
[copy] Copying 1 file to C:\Users\John\.grails\1.3.0.RC2\projects\appname
[mkdir] Created dir: C:\Users\John\Workspaces\STS\appname\web-app\plugins\app-engine-0.8.10
[copy] Copying 1 file to C:\Users\John\Workspaces\STS\appname\web-app\plugins\app-engine-0.8.10
[copy] Copying 1 file to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF
[mkdir] Created dir: C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\lib
[copy] Copying 64 files to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\lib
Configuring persistence for AppEngine
[mkdir] Created dir: C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\classes\META-INF
[copy] Copying 1 file to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\classes\META-INF
[mkdir] Created dir: C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\plugins\app-engine-0.8.10
[copy] Copying 2 files to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\plugins\app-engine-0.8.10
[mkdir] Created dir: C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\plugins\gorm-jpa-0.7.1
[copy] Copying 2 files to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\plugins\gorm-jpa-0.7.1
Packaging AppEngine jar files
Enhancing JDO classes
[enhance] DataNucleus Enhancer (version 1.1.4) : Enhancement of classes
[enhance] DataNucleus Enhancer completed with success for 1 classes. Timings : input=589 ms, enhance=200 ms, total=789 ms. Consult the log for full details
[groovyc] Compiling 1 source file to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF\classes
[copy] Copying 1 file to C:\Users\John\.grails\1.3.0.RC2\projects\appname
[copy] Copying 1 file to C:\Users\John\Workspaces\STS\appname\web-app\WEB-INF
Configuring persistence for AppEngine
Packaging AppEngine jar files
Enhancing JDO classes
[enhance] DataNucleus Enhancer (version 1.1.4) : Enhancement of classes
[enhance] DataNucleus Enhancer completed with success for 1 classes. Timings : input=585 ms, enhance=28 ms, total=613 ms. Consult the log for full details
Generating views for domain class test.Person ...
java.lang.reflect.InvocationTargetException
at SimpleTemplateScript1.run(SimpleTemplateScript1.groovy:43)
at _GrailsGenerate_groovy.generateForDomainClass(_GrailsGenerate_groovy:85)
at _GrailsGenerate_groovy$_run_closure1.doCall(_GrailsGenerate_groovy:50)
at GenerateAll$_run_closure1.doCall(GenerateAll.groovy:42)
at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy)
at gant.Gant.withBuildListeners(Gant.groovy:427)
at gant.Gant.this$2$withBuildListeners(Gant.groovy)
at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$2$dispatch(Gant.groovy)
at gant.Gant.invokeMethod(Gant.groovy)
at gant.Gant.executeTargets(Gant.groovy:590)
at gant.Gant.executeTargets(Gant.groovy:589)
Caused by: java.lang.NoClassDefFoundError: org/hibernate/MappingException
... 15 more
Caused by: java.lang.ClassNotFoundException: org.hibernate.MappingException
at org.codehaus.groovy.tools.RootLoader.findClass(RootLoader.java:156)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at org.codehaus.groovy.tools.RootLoader.loadClass(RootLoader.java:128)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
... 15 more
Error running generate-all: null
我做错了什么
我应该查阅的详细信息的日志文件在哪里?似乎使用标准脚手架将可见性设置为false会导致错误。我不得不从这个区块中删除中间线,它成功了:
static constraints = {
id visible:false
}
我想这是“约定优于配置”的代价之一:隐藏的依赖关系。也可能是我还在学习