如何通过jackson JsonGenerator内联对象？

Question

考虑例如：

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(); 
    } 
} 

目标是JSON流期间object添加所有领域。与该代码我：

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

如何告诉jackson不要再写从对象{}？

修订

的exprected结果（如data +从Java对象中的所有键）：

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

Answer 1

只是不叫writeEndObject()你叫writeBinary后，它应该看起来像：

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();