发表新帖
发表新帖

Jackson - ignore Map superclass when serializing

前端 未结
关注
3 1706
你的背包
你的背包 2020-12-18 08:27

I have a few model classes that extend LinkedHashMap: they define getters and setters which wrap the Map\'s get and put methods. I am tryi

3条回答
  • 臣服心动
    臣服心动 (楼主)
    2020-12-18 08:49

    You can implement your own org.codehaus.jackson.map.DeserializerProvider which extends Jackson's org.codehaus.jackson.map.deser.StdDeserializerProvider and overwrite method _createDeserializer:

    import org.codehaus.jackson.map.SerializerProvider;
import org.codehaus.jackson.map.deser.StdDeserializerProvider;
import org.codehaus.jackson.map.DeserializationConfig;
...

class MyDeserializerProvider extends StdDeserializerProvider {

    @Override
    protected JsonDeserializer _createDeserializer(DeserializationConfig config, JavaType type, BeanProperty property) throws JsonMappingException {
        if (type.isMapLikeType()) {       // (1)
            return this._factory.createBeanDeserializer(config, this, type, property);
        } else {
            return super._createDeserializer(config, type, property);
        }
    }
}



    (1) use if-condition that meets your needs
    


    The custom deserializer is registered directly at the ObjectMapper:
    


    ObjectMapper om = new ObjectMapper();
om.setDeserializerProvider(new MyDeserializerProvider());

    


    I tested this with Jackson 1.9.11.
    
    
    
             
    
                                                        
    
            
            
    
              
                
                0
              
                   
                
               讨论(0)
              
                                                  
              
              
    
                          
             
       
          
              
    
                                       
    

    

                
    
                         
          
                              			
        
        
        
    
          
    
            
            
    
              
              
    
            
    


                                 
              
    
            
    
                          
    

        
         
    
                
                
    
                  
                
    
                
    
                   看不清?
                
    
              
    
                                  
    
                    
   
                 
             
              
    提交回复
    
            
    
          
    
        
    
      
       
      
    
    
    
          
 
     
 
    
        
    热议问题