java怎么通過url獲得json數據并解析出來？
一個在url的json?數據，java?怎么讀取這個json數據并解析出相關的元素
qq_D_212
2018-04-27
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2018-05-03
private?static?String?readAll(Reader?rd)?throws?IOException?{ ????StringBuilder?sb?=?new?StringBuilder();???? ????int?cp;???? ????while?((cp?=?rd.read())?!=?-1)?{?????? ????????sb.append((char)?cp);???? ????}???? ????return?sb.toString();?? } InputStream?is?=?new?URL(輸入url地址).openStream(); BufferedReader?rd?=?new?BufferedReader(new?InputStreamReader(is,?Charset.forName("UTF-8"))); String?jsonText?=?readAll(rd);?????? JSONObject?json?=?new?JSONObject(jsonText);