CODEWITHSUNDEEP
javajsonjackson
JAB
JAB

Reputation: 3616

Jackson Json generating a space after new line

Here goes my code

import java.io.File;
import java.io.IOException;

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

public class Test {

    public static void main(String[] args) throws IOException {
        JsonFactory jfactory = new JsonFactory();
        JsonGenerator jGenerator = jfactory.createJsonGenerator(new File("test.json"), JsonEncoding.UTF8);

        for(int i=0;i<4;i++){
            jGenerator.writeStartObject(); // {
            jGenerator.writeStringField("name" , "test");
            jGenerator.writeEndObject();   // }
            jGenerator.writeRaw('\n');     // creates new line
        }

        jGenerator.close();

        System.out.println("File Generated");
    }

}

After running this when i look into the generated file , it has a space just before each new record .. Is there a way to remove this space while generating the file itself??

Sample Output 

{"name":"test"}  
 {"name":"test"}  
 {"name":"test"}  
 {"name":"test"}

Upvotes: 2

Views: 6980

Answers (1)

Ilya
Ilya

Reputation: 29693

Use next PrettyPrinter 

   new MinimalPrettyPrinter("");

your code will looks like 

   JsonFactory jfactory = new JsonFactory();
   JsonGenerator jGenerator = jfactory.createJsonGenerator(new File("test.json"), JsonEncoding.UTF8);
   jGenerator.setPrettyPrinter(new MinimalPrettyPrinter("")); 
    for(int i=0;i<4;i++)
    {
       jGenerator.writeStartObject();
       jGenerator.writeStringField("name" , "test");
       jGenerator.writeEndObject();
       jGenerator.writeRaw('\n');
    }
    jGenerator.close();

Upvotes: 6

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