Http URLConnection Http URLConnection http Urlconnection null URL

利用Http. URLConnection來抓資料 利用 Http. URLConnection http. Urlconnection = null; URL url = new URL(要抓取的網頁位置); http. Urlconnection = (Http. URLConnection)url. open. Connection(); http. Urlconnection. set. Request. Method("GET"); http. Urlconnection. set. Do. Input(true); http. Urlconnection. set. Do. Output(true); http. Urlconnection. connect();

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