如何通過jackson JsonGenerator內聯對象？

Question

考慮例如：

import com.fasterxml.jackson.core.JsonFactory; 
import com.fasterxml.jackson.core.JsonGenerator; 

import java.io.File; 
import java.io.FileInputStream; 

public class Exmaple { 
    public static void main (String[] args) throws Exception { 

     Object object = new Object() { 
      private String id = "someId"; 
     }; 

     final JsonGenerator generator = new JsonFactory().createGenerator(System.out); 
     generator.writeStartObject(); 
     generator.writeFieldName("data"); 
     generator.writeBinary(new FileInputStream(new File("D:\\!Temp\\elasticsearch\\pdf.pdf")), -1); 
     generator.writeEndObject(); 
     generator.writeObject(object); 
     generator.close(); 
    } 
} 

目標是JSON流期間object添加所有領域。與該代碼我：

{ 
    "data": "JVBERi0xLjMKJ=" 
} { 
    "id": "someId", 
} 

如何告訴jackson不要再寫從對象{}？

修訂

的exprected結果（如data +從Java對象中的所有鍵）：

{ 
    "data": "JVBERi0xLjMKJ=", 
    "id": "someId", 
} 

Answer 1

只是不叫writeEndObject()你叫writeBinary後，它應該看起來像：

final JsonGenerator generator = new JsonFactory().createGenerator(System.out); 
     generator.writeStartObject(); 
     generator.writeFieldName("data"); 
     generator.writeBinary(new FileInputStream(new File("D:\\!Temp\\elasticsearch\\pdf.pdf")), -1); 
     generator.writeObject(object); 
     generator.writeEndObject(); 
     generator.close();