//發(fā)送post請(qǐng)求

public staticString sendPost(String url, String param) {

PrintWriter out= null;

BufferedReader in= null;

String result= "";try{

URL realUrl= newURL(url);//打開和URL之間的連接

URLConnection conn =realUrl.openConnection();//設(shè)置通用的請(qǐng)求屬性

conn.setRequestProperty("accept", "*/*");

conn.setRequestProperty("connection", "Keep-Alive");

conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");//發(fā)送POST請(qǐng)求必須設(shè)置如下兩行

conn.setDoOutput(true);

conn.setDoInput(true);//獲取URLConnection對(duì)象對(duì)應(yīng)的輸出流

out = newPrintWriter(conn.getOutputStream());//發(fā)送請(qǐng)求參數(shù)

out.print(param);//flush輸出流的緩沖

out.flush();//定義BufferedReader輸入流來(lái)讀取URL的響應(yīng)

in = newBufferedReader(newInputStreamReader(conn.getInputStream()));

String line;while ((line = in.readLine()) != null) {

result+=line;

}

}catch(Exception e) {

System.out.println("[POST請(qǐng)求]向地址：" + url + " 發(fā)送數(shù)據(jù)：" + param + " 發(fā)生錯(cuò)誤!");

}finally {//使用finally塊來(lái)關(guān)閉輸出流、輸入流

try{if (out != null) {

out.close();

}if (in != null) {

in.close();

}

}catch(IOException ex) {

System.out.println("關(guān)閉流異常");

}

}returnresult;

}//發(fā)送GET請(qǐng)求

public staticString sendGet(String url) {

String result= "";

BufferedReader in= null;try{

String urlName=url;

URL realUrl= newURL(urlName);

URLConnection conn= realUrl.openConnection();//打開和URL之間的連接

conn.setRequestProperty("accept", "*/*");//設(shè)置通用的請(qǐng)求屬性

conn.setRequestProperty("connection", "Keep-Alive");

conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");

conn.setConnectTimeout(4000);

conn.connect();//建立實(shí)際的連接

in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));//定義BufferedReader輸入流來(lái)讀取URL的響應(yīng)

String line;while ((line = in.readLine()) != null) {

result+=line;

}

}catch(Exception e) {

System.out.println("發(fā)送GET請(qǐng)求出現(xiàn)異常！" +e);

}finally {//使用finally塊來(lái)關(guān)閉輸入流

try{if (in != null) {

in.close();

}

}catch(IOException ex) {

System.out.println("關(guān)閉流異常");

}

}returnresult;

}

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