JSONObject.write (<a writer>) vs. aWriter.write(jSONObj.toString())

Question

It seems like there're 2 ways to write the content of a JSON object to a writer. I can either do

myWriter.write(myJSONObj.toString()); 

Or

myJSONObj.write(myWriter); 

Is there any reason why anyone would choose one way over the other?

Answer 1

According to the source code :

public String toString() { 
    try { 
     return this.toString(0); 
    } catch (Exception e) { 
     return null; 
    } 
} 

public String toString(int indentFactor) throws JSONException { 
    StringWriter w = new StringWriter(); 
    synchronized (w.getBuffer()) { 
     return this.write(w, indentFactor, 0).toString(); 
    } 
} 

public Writer write(Writer writer) throws JSONException { 
    return this.write(writer, 0, 0); 
} 

그래서 기본적으로, 첫 번째 방법 :..

myWriter.write(myJSONObj.toString()); 

1. 는이 StringWriter
2. 가 write(Writer writer, int indentFactor, int indent)에 작가를 전달 작성
3. json으로 콘텐츠를 GET 작가에게 씁니다.
4. 작가는 StringWriter#toString()을 통해 변환됩니다.
5. 마지막 문자열은 myWriter에 기록됩니다.

두 번째 방법 :

myJSONObj.write(myWriter); 

1. 는 write(Writer writer, int indentFactor, int indent)에 작가를 전달합니다.
2. JSON 콘텐츠가 작성자에게 쓰여집니다.