2

我正在官方 grails 文档的帮助下将grails 版本从 2.1.1 升级到 2.3.0。

老实说，我一步一步地遵循了这些步骤。我还成功地将我的一个 grails 项目升级到了 2.3.0 个月。不幸的是，这次失败了。以下错误对我打击很大。

| Error 2013-11-09 17:26:26,933 [localhost-startStop-1] ERROR context.ContextLoader  - Context initialization failed
Message: Error creating bean with name 'grailsApplication' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.codehaus.groovy.grails.exceptions.GrailsConfigurationException: Class not found loading Grails application: eccount.MainController
    Line | Method
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1110 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    603 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread

Caused by GrailsConfigurationException: Class not found loading Grails application: eccount.MainController
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1110 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    603 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread

Caused by ClassNotFoundException: eccount.MainController
->>  366 | run       in java.net.URLClassLoader$1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    355 | run       in     ''
|    354 | findClass in java.net.URLClassLoader
|    423 | loadClass in java.lang.ClassLoader
|    334 | innerRun  in java.util.concurrent.FutureTask$Sync
|    166 | run       in java.util.concurrent.FutureTask
|   1110 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    603 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread
| Error 2013-11-09 17:26:27,032 [localhost-startStop-1] ERROR context.GrailsContextLoader  - Error initializing the application: Error creating bean with name 'grailsApplication' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.codehaus.groovy.grails.exceptions.GrailsConfigurationException: Class not found loading Grails application: eccount.MainController
Message: Error creating bean with name 'grailsApplication' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.codehaus.groovy.grails.exceptions.GrailsConfigurationException: Class not found loading Grails application: eccount.MainController
    Line | Method
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1110 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    603 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread

Caused by GrailsConfigurationException: Class not found loading Grails application: eccount.MainController
->>  334 | innerRun  in java.util.concurrent.FutureTask$Sync
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    166 | run       in java.util.concurrent.FutureTask
|   1110 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    603 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread

Caused by ClassNotFoundException: eccount.MainController
->>  366 | run       in java.net.URLClassLoader$1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    355 | run       in     ''
|    354 | findClass in java.net.URLClassLoader
|    423 | loadClass in java.lang.ClassLoader
|    334 | innerRun  in java.util.concurrent.FutureTask$Sync
|    166 | run       in java.util.concurrent.FutureTask
|   1110 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    603 | run       in java.util.concurrent.ThreadPoolExecutor$Worker
^    722 | run . . . in java.lang.Thread

插件部分BuildConfig.groovy

  plugins {

        runtime ":hibernate:$slurp.app.hibernate.version"
        build   ":tomcat:$slurp.app.tomcat.version"
        compile ':scaffolding:1.0.0'
    }

我applicationContext.xml的如下，我认为不正确。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="grailsApplication" class="org.codehaus.groovy.grails.commons.GrailsApplicationFactoryBean">
        <description>Grails application factory bean</description>
        <property name="grailsDescriptor" value="/WEB-INF/grails.xml" />
        <property name="grailsResourceLoader" ref="grailsResourceLoader" />
    </bean>

    <bean id="pluginManager" class="org.codehaus.groovy.grails.plugins.GrailsPluginManagerFactoryBean">
        <description>A bean that manages Grails plugins</description>
        <property name="grailsDescriptor" value="/WEB-INF/grails.xml" />
        <property name="application" ref="grailsApplication" />
    </bean>

    <bean id="grailsConfigurator" class="org.codehaus.groovy.grails.commons.spring.GrailsRuntimeConfigurator">
        <constructor-arg>
            <ref bean="grailsApplication" />
        </constructor-arg>
        <property name="pluginManager" ref="pluginManager" />
    </bean>

    <bean id="grailsResourceLoader" class="org.codehaus.groovy.grails.commons.GrailsResourceLoaderFactoryBean" />

    <bean id="characterEncodingFilter" class="org.springframework.web.filter.CharacterEncodingFilter">
        <property name="encoding">
            <value>utf-8</value>
        </property>
    </bean>

    <bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean" />
</beans>

我经历了Hit and Trials（H＆T）但未能成功。

1) 

$ grails clean
$ grails run-app

2) 

$ rm -r ~/.grails/2.3.0/projects/gccount
$ grails clean
$ grails run-app

3)

3.1) 替换grails.project.dependency.resolver="maven"为 grails.project.dependency.resolver="ivy". 还尝试再次回到 Maven。

3.2)

$ grails clean
$ grails run-app

4) 

$ rm -r target/
$ grails clean
$ grails run-app
4

2 回答 2

4

仔细看MainController，如下图

package cashless

class MainController {

    def index() { }
}

它在早期版本中运行良好，可能是因为它的 contextPath( app.name="cashless") 与我在升级期间cashless更改的包相同。gccount虽然它没有eccount.MainController直接导入任何地方。

只是更新包解决了这个问题。

package eccount

class MainController {

    def index() { }
}
于 2013-11-09T13:01:13.657 回答
0

我也发现了同样的异常当我在我的域类中删除了一些包目录时 -> 找不到类加载 Grails 应用程序

异常的原因是在某些文件中导入了错误的包。

于 2015-02-06T06:53:38.417 回答