http://blog.csdn.net/anyoneking/archive/2010/01/11/5177927.aspxHttpURLConnection为javaAPI提供的一种Rest访问的方式。其支持对Post,Delete,Get,Put等方式的访问。以下为对于HttpURLConnection对Post等方式访问的一段代码。viewplaincopytoclipboardprint?1.packagecom.sw.study.urlConnection;2.3.importjava.io.BufferedReader;4.importjava.io.InputStreamReader;5.importjava.io.OutputStream;6.importjava.net.HttpURLConnection;7.importjava.net.URL;8.importjava.net.URLConnection;9.importjava.util.HashMap;10.importjava.util.Map;11.12.publicclassURLConnectionUtil{13.14.privatestaticfinalStringSERVLET_POST="POST";15.privatestaticfinalStringSERVLET_GET="GET";16.privatestaticfinalStringSERVLET_DELETE="DELETE";17.privatestaticfinalStringSERVLET_PUT="PUT";18.19.privatestaticStringprepareParam(Map<String,Object>paramMap){20.StringBuffersb=newStringBuffer();21.if(paramMap.isEmpty()){22.return"";23.}else{24.for(Stringkey:paramMap.keySet()){25.Stringvalue=(String)paramMap.get(key);26.if(sb.length()<1){27.sb.append(key).append("=").append(value);28.}else{29.sb.append("&").append(key).append("=").append(value);30.}31.}32.returnsb.toString();33.}34.}35.36.publicstaticvoiddoPost(StringurlStr,Map<String,Object>paramMap)throwsException{37.URLurl=newURL(urlStr);38.HttpURLConnectionconn=(HttpURLConnection)url.openConnection();39.conn.setRequestMethod(SERVLET_POST);40.StringparamStr=prepareParam(paramMap);41.conn.setDoInput(true);42.conn.setDoOutput(true);43.OutputStreamos=conn.getOutputStream();44.os.write(paramStr.toString().getBytes("utf-8"));45.os.close();46.47.BufferedReaderbr=newBufferedReader(newInputStreamReader(conn.getInputStream()));48.Stringline;49.Stringresult="";50.while((line=br.readLine())!=null){51.result+="\n"+line;52.}53.System.out.println(result);54.br.close();55.56.}57.58.publicstaticvoiddoGet(StringurlStr,Map<String,Object>paramMap)throwsException{59.StringparamStr=prepareParam(paramMap);60.if(paramStr==null||paramStr.trim().length()<1){61.62.}else{63.urlStr+="?"+paramStr;64.}65.System.out.println(urlStr);66.URLurl=newURL(urlStr);67.HttpURLConnectionconn=(HttpURLConnection)url.openConnection();68.conn.setRequestMethod(SERVLET_PUT);69.conn.setRequestProperty("Content-Type","text/html;charset=UTF-8");70.71.conn.connect();72.BufferedReaderbr=newBufferedReader(newInputStreamReader(conn.getInputStream()));73.Stringline;74.Stringresult="";75.while((line=br.readLine())!=null){76.result+="\n"+line;77.}78.System.out.println(result);79.br.close();80.}81.82.publicstaticvoiddoPut(StringurlStr,Map<String,Object>paramMap)throwsException{83.URLurl=newURL(urlStr);84.HttpURLConnectionconn=(HttpURLConnection)url.openConnection();85.conn.setRequestMethod(SERVLET_PUT);86.StringparamStr=prepareParam(paramMap);87.conn.setDoInput(true);88.conn.setDoOutput(true);89.OutputStreamos=conn.getOutputStream();90.os.write(paramStr.toString().getBytes("utf-8"));91.os.close();92.93.BufferedReaderbr=newBufferedReader(newInputStreamReader(conn.getInputStream()));94.Stringline;95.Stringresult="";96.while((line=br.readLine())!=null){97.result+="\n"+line;98.}99.System.out.println(result);100.br.close();101.102.}103.104.publicstaticvoiddoDelete(StringurlStr,Map<String,Object>paramMap)throwsException{105.StringparamStr=prepareParam(paramMap);106.if(paramStr==null||paramStr.trim().length()<1){107.108.}else{109.urlStr+="?"+paramStr;1...