如何註冊Grails中自定義的JSON編組

我想註冊一個自定義的JSON編組這樣如何註冊Grails中自定義的JSON編組

JSON.createNamedConfig("dynamic",{ 
      def m = new CustomJSONSerializer() 
      JSON.registerObjectMarshaller(Idf, 1, { instance, converter -> m.marshalObject(instance, converter) }) 
      }) 

and then using it like this 

    JSON.use("dynamic"){ 
      render inventionList as JSON 
      }

，但我不知道如果使用我的自定義序列是因爲我從來沒有調試控制去我自定義序列的marshalObject功能

我的自定義序列如下：

import grails.converters.deep.JSON 
import java.beans.PropertyDescriptor 
import java.lang.reflect.Field 
import java.lang.reflect.Method 
import org.codehaus.groovy.grails.web.converters.exceptions.ConverterException 
import org.codehaus.groovy.grails.web.converters.marshaller.json.GroovyBeanMarshaller 
import org.codehaus.groovy.grails.web.json.JSONWriter 

class CustomJSONSerializer extends GroovyBeanMarshaller{ 
    public boolean supports(Object object) { 
     return object instanceof GroovyObject; 
    } 

    public void marshalObject(Object o, JSON json) throws ConverterException { 
     JSONWriter writer = json.getWriter(); 
     println 'properties '+BeanUtils.getPropertyDescriptors(o.getClass()) 
     for(PropertyDescriptor property:BeanUtils.getProperyDescriptors(o.getClass())){ 
       println 'property '+property.getName() 
      } 
     try { 
      writer.object(); 
      for (PropertyDescriptor property : BeanUtils.getPropertyDescriptors(o.getClass())) { 
       String name = property.getName(); 
       Method readMethod = property.getReadMethod(); 
       if (readMethod != null && !(name.equals("metaClass")) && readMethod.getName()!='getSpringSecurityService') { 
        Object value = readMethod.invoke(o, (Object[]) null); 
        writer.key(name); 
        json.convertAnother(value); 
       } 
      } 
      for (Field field : o.getClass().getDeclaredFields()) { 
       int modifiers = field.getModifiers(); 
       if (Modifier.isPublic(modifiers) && !(Modifier.isStatic(modifiers) || Modifier.isTransient(modifiers))) { 
        writer.key(field.getName()); 
        json.convertAnother(field.get(o)); 
       } 
      } 
      writer.endObject(); 
     } 
     catch (ConverterException ce) { 
      throw ce; 
     } 
     catch (Exception e) { 
      throw new ConverterException("Error converting Bean with class " + o.getClass().getName(), e); 
     } 
    } 


}

是否有可能調試的S erializer？如果沒有，那我該如何從序列化中排除一個屬性？有一些屬性在序列化期間拋出異常。

來源

2012-04-17 vijay tyagi

我解決它通過導入一些丟失的文件一樣的BeanUtils和修改 – 2012-04-17 10:50:48

這是我在引導初始化關閉自定義JSON編組做：

def init = {servletContext -> 
    grailsApplication.domainClasses.each {domainClass -> 
     domainClass.metaClass.part = {m -> 
      def map = [:] 
      if (m.'include') { 
       m.'include'.each { 
        map[it] = delegate."${it}" 
       } 
      } else if (m.'except') { 
       m.'except'.addAll excludedProps 
       def props = domainClass.persistentProperties.findAll { 
        !(it.name in m.'except') 
       } 
       props.each { 
        map['id'] = delegate.id 
        map[it.name] = delegate."${it.name}" 
       } 
      } 
      return map 
     } 



    } 
    JSON.registerObjectMarshaller(Date) { 
     return it?.format("dd.MM.yyyy") 
    } 
    JSON.registerObjectMarshaller(User) { 
     def returnArray = [:] 
     returnArray['username'] = it.username 
     returnArray['userRealName'] = it.userRealName 
     returnArray['email'] = it.email 
     return returnArray 
    } 
    JSON.registerObjectMarshaller(Role) { 
     def returnArray = [:] 
     returnArray['authority'] = it.authority 
     return returnArray 
    } 
    JSON.registerObjectMarshaller(Person) { 
     return it.part(except: ['fieldX', 'fieldY']) 
    }}

你看，我有自定義marshallers的日期，使用，人，角色類

來源

2012-04-19 11:49:01