package?test;

import?java.io.BufferedReader;
import?java.io.IOException;
import?java.io.InputStreamReader;
import?java.io.OutputStreamWriter;
import?java.net.HttpURLConnection;
import?java.net.URL;
import?java.net.URLConnection;
//發(fā)起post請(qǐng)求，并且獲取服務(wù)器返回
public?class?HttpUtil?{
	private?final?static?int?CONNECT_TIMEOUT?=?5000;//
	private?final?static?String?DEFAULT_ENCODING=“UTF-8“;
	
	public?static?String?postData（String?urlStrString?data）?{
		return?postData（urlStr?datanull）;
	}
	public?static?String?postData（String?urlStrString?dataString?contentType）?{
		BufferedReader?reader?=?null;
		try?{
			URL?url?=?new?URL（urlStr）;
//			URLConnection?coon?=url.openConnection（）;
			HttpURLConnection?coon?=?（HttpURLConnection）?url.openConnection（）;
			coon.setRequestMethod（“POST“）;
			coon.setDoOutput（true）;//為true后可使用.getOutputStrean
			coon.setConnectTimeout（CONNECT_TIMEOUT）;//設(shè)置連接主機(jī)超時(shí)（ms）
			coon.setReadTimeout（CONNECT_TIMEOUT）;//設(shè)置從主機(jī)讀取數(shù)據(jù)超時(shí)（ms）
			if（contentType!=null）?{
				coon.setRequestProperty（“content_type“?contentType）;
			}
			OutputStreamWriter?writer?=?new?OutputStreamWriter（coon.getOutputStream（）DEFAULT_ENCODING）;//將寫入的字符編碼成字節(jié)后寫入一個(gè)字節(jié)流
			if（data==null）?{
				data=““;
			}
			writer.write（data）;
			writer.flush（）;
			writer.close（）;
			reader?=?new?BufferedReader（new?InputStreamReader（coon.getInputStream（）?DEFAULT_ENCODING））;//緩沖字符輸入流
			StringBuilder?sb?=?new?StringBuilder（）;
			String?line?=?null;
			while（（line?=?reader.readLine（））!=null）?{
				sb.append（line）;
				sb.append（“\r\n“）;
			}
			return?sb.toString（）;
		}catch?（IOException?e）?{??
????????????//logger.error（“Error?connecting?to?“?+?urlStr?+?“:?“?+?e.getMessage（））;?
			e.printStackTrace（）;
????????}?finally?{??
????????????try?{??
????????????????if?（reader?!=?null）??
????????????????????reader.close（）;??
????????????}?catch?（IOException?e）?{??
????????????}??
????????}??
????????return?null;??
	}
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????1039??2018-10-08?09:31??getSignKey.txt

?????文件???????2098??2018-08-29?09:00??HttpUtil.java

-----------?---------??----------?-----??----

?????????????????3137????????????????????2