Json 验证对象列表

嗨，我正在尝试验证一个包含一系列对象的对象。根实例来自JSON客户机文件

我创造了这样的东西

@Validateable
class Book {
    String title
    List authors
    static hasMany = [authors : Authors]

    static constraints = {
        authors(nullable:false,validator: { recipients ->
            recipients.every { it.validate() }
        } )     
    }
}

@Validateable
class Author {
    String name
    Integer property

        static constraints = {
        name(nullable:false)    
        property((nullable:false, blank: false))    
    }
}

我正试图通过以下方式在控制器中验证它：

class BookController {

def manageBook(Book book){
    if (book.validate()) {
        //Do my stuff
    }else{
        // return error
    }
}
}

但它根本不起作用，我在控制台中看到这个错误：

| Error 2012-05-25 11:26:34,014 [http-bio-8080-exec-1] ERROR errors.GrailsExceptionResolver  - MissingMethodException occurred when processing request: [POST] /BookApp/rest/bookApp/manageBook
No signature of method: org.codehaus.groovy.grails.web.json.JSONObject.validate() is applicable for argument types: () values: []
Possible solutions: wait(), values(). Stacktrace follows:
Message: No signature of method: org.codehaus.groovy.grails.web.json.JSONObject.validate() is applicable for argument types: () values: []
Possible solutions: wait(), values()
   Line | Method
->>  17 | doCall  in dataskaterserver.DeviceSeenWifiData$__clinit__closure1_closure2_closure3
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   886 | runTask in java.util.concurrent.ThreadPoolExecutor$Worker
|   908 | run . . in     ''
^   680 | run     in java.lang.Thread

---

有人能帮我吗？

我找到了解决方案，它在文档中

注册可验证类 如果一个类没有标记为Validateable，那么框架仍然可以使它成为可验证的。执行此操作所需的步骤是在类中定义static constraints属性（如上所述），然后通过在Config.groovy@中为grails.validatable.classes属性赋值来告知框架类：

grails.validateable.classes = [com.mycompany.myapp.User, com.mycompany.dto.Account]

---

您是否为此url映射配置了

parseRequest:true

？是的，我已经定义了parseRequest:true。我在url映射中看到了这一点：“/rest/$controller/manageBook”（parseRequest:true）{action=[POST:“manageBook”]}