Http 带token的请求

package com.zto.guaranteedoor.utils;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.http.client.HttpClient;


/**
 * 和HTTP相关的操作
 *
 * @author
 *
 */
public class HttpToken {
    /**
     *
     * @Title: doPost
     * @Description: post请求
     * @param reqUrl
     * @param parameters
     * @return String
     */
    public static String doPost(String reqUrl, Map parameters, String token) {
        HttpURLConnection urlConn = null;
        try {
            urlConn = _sendPost(reqUrl, parameters, token);
            String responseContent = _getContent(urlConn);
            return responseContent.trim();
        } finally {
            if (urlConn != null) {
                urlConn.disconnect();
            }
        }
    }
    private static HttpURLConnection _sendPost(String reqUrl, Map parameters, String token) {
        HttpURLConnection urlConn = null;
        try {
            StringBuffer params = new StringBuffer();
            if (parameters != null) {
                for (Iterator iter = parameters.keySet().iterator(); iter.hasNext();) {
                    String name = iter.next();
                    String value = parameters.get(name);
                    params.append(name + "=");
                    params.append(URLEncoder.encode(value, "UTF-8"));
                    if (iter.hasNext())
                        params.append("&");
                }
            }

            URL url = new URL(reqUrl);
            urlConn = (HttpURLConnection) url.openConnection();

            if(!"".equals(token) && token !=null) {
                urlConn.addRequestProperty("token", token);
            }

            urlConn.setRequestMethod("POST");
            urlConn.setConnectTimeout(5000);// （单位：毫秒）jdk
            urlConn.setReadTimeout(5000);// （单位：毫秒）jdk 1.5换成这个,读操作超时
            urlConn.setDoOutput(true);
            byte[] b = params.toString().getBytes();
            urlConn.getOutputStream().write(b, 0, b.length);
            urlConn.getOutputStream().flush();
            urlConn.getOutputStream().close();
        } catch (Exception e) {
            throw new RuntimeException(e.getMessage(), e);
        }
        return urlConn;
    }
    private static String _getContent(HttpURLConnection urlConn) {
        try {
            String responseContent = null;
            InputStream in = urlConn.getInputStream();
            BufferedReader rd = new BufferedReader(new InputStreamReader(in, "UTF-8"));
            String tempLine = rd.readLine();
            StringBuffer tempStr = new StringBuffer();
            String crlf = System.getProperty("line.separator");
            while (tempLine != null) {
                tempStr.append(tempLine);
                tempStr.append(crlf);
                tempLine = rd.readLine();
            }
            responseContent = tempStr.toString();
            rd.close();
            in.close();
            return responseContent;
        } catch (Exception e) {
            throw new RuntimeException(e.getMessage(), e);
        }
    }

}