Java 将InputStream转换成JSONObject和BufferedReader的方法及示例代码

1､通过InputStream得到BufferedReader

BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));

或者

Reader reader = new InputStreamReader(inputStream);
BufferedReader br = new BufferedReader(reader);

或者

InputStream inputStream;
InputStreamReader r = new InputStreamReader(inputStream);
BufferedReader br = new BufferedReader(r);

2､通过InputStream得到JSONObject

JSONObject jsonObject = new JSONObject(new JSONTokener(inputStream));

或者

JsonElement element = new JsonParser().parse(new InputStreamReader(inputStream));
JSONObject jsonObject = new JSONObject(element.getAsJsonObject().toString());

或者

BufferedReader bR = new BufferedReader(  new InputStreamReader(inputStream));
String line = "";
StringBuilder responseStrBuilder = new StringBuilder();
while((line =  bR.readLine()) != null){
    responseStrBuilder.append(line);
}
inputStream.close();
JSONObject result= new JSONObject(responseStrBuilder.toString());     

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