java處理HTTP請求

標籤：inpu   http請求   write   get   service   nts   buffer   返回   readline   

 1 import com.diyfintech.wx.service.HttpService; 2 import org.springframework.stereotype.Service; 3  4 import java.io.BufferedReader; 5 import java.io.InputStream; 6 import java.io.InputStreamReader; 7 import java.io.OutputStream; 8 import java.net.HttpURLConnection; 9 import java.net.URL;10 @Service11 public class HttpServiceImpl implements HttpService {12 13   //處理http請求  requestUrl為請求地址  requestMethod請求方式，值為"GET"或"POST"14   public String httpRequest(String requestUrl,String requestMethod,String outputStr){15     16     StringBuffer buffer=null;17     try{18       URL url=new URL(requestUrl);19       HttpURLConnection conn=(HttpURLConnection)url.openConnection();20       conn.setDoOutput(true);21       conn.setDoInput(true);22       conn.setRequestMethod(requestMethod);23       conn.connect();24       //往伺服器端寫內容 也就是發起http請求需要帶的參數25       if(null!=outputStr){26         OutputStream os=conn.getOutputStream();27         os.write(outputStr.getBytes("utf-8"));28         os.close();29       }30       //讀取伺服器端返回的內容31       InputStream is=conn.getInputStream();32       InputStreamReader isr=new InputStreamReader(is,"utf-8");33       BufferedReader br=new BufferedReader(isr);34       buffer=new StringBuffer();35       String line=null;36       while((line=br.readLine())!=null){37         buffer.append(line);38       }39     }catch(Exception e){40       e.printStackTrace();41     }42     return buffer.toString();43   }44 45 }

 

java處理HTTP請求