java 后台 post請求 攜帶參數 遠程操作 調用接口

package com.huayu.tizong.matchteam.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

/**
 * 請求接口數據
 * 
 * @author Administrator
 * 
 */
public class httpPostUrl {
	
	/**
	 * 
	 * @param url
	 * @param param  參數 k=v
	 * @return
	 */
	public static String sendPost(String url, String param) {
		PrintWriter out = null;
		BufferedReader in = null;
		String result = "";
		try {
			URL realUrl = new URL(url);
			// 打開和URL之間的連接
			URLConnection conn = realUrl.openConnection();
			// 設置通用的請求屬性
			conn.setRequestProperty("accept", "*/*");
			conn.setRequestProperty("connection", "Keep-Alive");
			conn.setRequestProperty("user-agent",
					"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
			conn.setRequestProperty("Charsert", "UTF-8");
			// 發送POST請求必須設置如下兩行
			conn.setDoOutput(true);
			conn.setDoInput(true);
			// 獲取URLConnection對象對應的輸出流
			out = new PrintWriter(conn.getOutputStream());
			// 發送請求參數
			out.print(param);
			// flush輸出流的緩沖
			out.flush();
			// 定義BufferedReader輸入流來讀取URL的響應
			in = new BufferedReader(
					new InputStreamReader(conn.getInputStream(),"utf-8"));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
		} catch (Exception e) {
			System.out.println("發送 POST 請求出現異常！" + e);
			e.printStackTrace();
		}
		// 使用finally塊來關閉輸出流、輸入流
		finally {
			try {
				if (out != null) {
					out.close();
				}
				if (in != null) {
					in.close();
				}
			} catch (IOException ex) {
				ex.printStackTrace();
			}
		}
		return result;
	}

	/**
	 * 數據流post請求
	 * 
	 * @param urlStr
	 * @param xmlInfo
	 */
	public static String doPost(String urlStr, String strInfo) {
		String reStr = "";
		try {
			URL url = new URL(urlStr);
			URLConnection con = url.openConnection();
			con.setDoOutput(true);
			con.setRequestProperty("Pragma:", "no-cache");
			con.setRequestProperty("Cache-Control", "no-cache");
			con.setRequestProperty("Content-Type", "text/xml");
			OutputStreamWriter out = new OutputStreamWriter(
					con.getOutputStream());
			out.write(new String(strInfo.getBytes("utf-8")));
			out.flush();
			out.close();
			BufferedReader br = new BufferedReader(new InputStreamReader(
					con.getInputStream(), "utf-8"));
			String line = "";
			for (line = br.readLine(); line != null; line = br.readLine()) {
				reStr += line;
			}
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return reStr;
	}
}