Question

有谁熟悉以下错误？我正在使用带有Grails 2.4.4的hibernate 4 +

这是整个错误日志：

|Loading Grails 2.4.4
|Configuring classpath
.
|Environment set to development
.................................
|Packaging Grails application
...........
|Compiling 1 source files
.........................
|Running Grails application
Error |
2015-03-19 16:54:11,496 [localhost-startStop-1] ERROR context.GrailsContextLoaderListener  - Error initializing the application: Error creating bean with name 'transactionManagerPostProcessor': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.MappingException: Association references unmapped class: java.util.Set
Message: Error creating bean with name 'transactionManagerPostProcessor': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.MappingException: Association references unmapped class: java.util.Set
    Line | Method
->>  266 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.MappingException: Association references unmapped class: java.util.Set
->>  266 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.MappingException: Association references unmapped class: java.util.Set
->>  266 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by MappingException: Association references unmapped class: java.util.Set
->>  266 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Error |
Forked Grails VM exited with error

Answer 1

问题：

我的某个域类包含一个大写字母，它不应该是（＆＃39;漏洞利用＆＃39;而不是＆＃39;漏洞利用＆＃39;）。

解决方案：

旧代码：

package core

class Scenario {
    String name

    static belongsTo = [ Exploit ]

    static hasMany = [ Exploits : Exploit ]

    static constraints = {
        name nullable: false , maxSize: 32
    }
}

新代码：

package core

class Scenario {
    String name

    static belongsTo = [ Exploit ]

    static hasMany = [ exploits : Exploit ]

    static constraints = {
        name nullable: false , maxSize: 32
    }
}

它有效!!

Answer 2

如果在嵌入对象中使用像hasMany这样的集合，也会出现此错误。

复合元素可能不包含嵌套集合。

“复合元素”与@Embeddable对象相同。因此，@ Embeddable对象集合不可能保存集合。必须将它们提升为@Entity对象。

参考this link

Answer 3

将我的项目从Grails 2.3.11升级到2.5.4后，我遇到了同样的问题。事实证明，必须更新弹簧安全性生成的类User，Role和UserRole。他们有过时的getter和setter，现在被解释为bean属性。

Answer 4

我遇到了类似的异常，但命名是正确的。

问题是两个数据源使用 - 用于读取和写入副本。

问题的修复是添加以下内容：

static mapping = {
    datasource 'ALL'
}

grails：org.hibernate.MappingException：关联引用未映射的类：java.util.Set

4 个答案: