Java使用原始的HTTPURLConnect傳送post請求
阿新 • • 發佈:2018-11-21
主要介紹jdk中的httpURLConnect傳送post請求:
package dbzhang.test; import java.beans.Encoder; import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLEncoder; /** *@author:zdb *@time:2018年10月29日 *@Description: 使用jdk中的HttpURLConnection傳送post請求 * */ public class SendPostDemo { private static String urlPath = "http://localhost:8080/Test1/HelloWorld"; public static void main(String[] args) throws IOException { String param = "name="+URLEncoder.encode("張代兵", "UTF-8"); //建立連線 URL url=new URL(urlPath); HttpURLConnection httpConn=(HttpURLConnection)url.openConnection(); //設定引數 httpConn.setDoOutput(true); //需要輸出 httpConn.setDoInput(true); //需要輸入 httpConn.setUseCaches(false); //不允許快取 httpConn.setRequestMethod("POST"); //設定POST方式連線 //設定請求屬性 httpConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); httpConn.setRequestProperty("Connection", "Keep-Alive");// 維持長連線 httpConn.setRequestProperty("Charset", "UTF-8"); //連線,也可以不用明文connect,使用下面的httpConn.getOutputStream()會自動connect httpConn.connect(); //建立輸入流,向指向的URL傳入引數 DataOutputStream dos=new DataOutputStream(httpConn.getOutputStream()); dos.writeBytes(param); dos.flush(); dos.close(); //獲得響應狀態 int resultCode=httpConn.getResponseCode(); if(HttpURLConnection.HTTP_OK==resultCode){ StringBuffer sb=new StringBuffer(); String readLine=new String(); BufferedReader responseReader=new BufferedReader(new InputStreamReader(httpConn.getInputStream(),"UTF-8")); while((readLine=responseReader.readLine())!=null){ sb.append(readLine).append("\n"); } responseReader.close(); System.out.println(sb.toString()); } } }