import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
/**

	 * @author xuza

	 * @param params 参数

	 * @param url 字符串

	 * @return

	 */

	public static String sendChar(String params,String url){

		String sTotalString = "";

        try {

			URL newUrl = null;

			HttpURLConnection httpConn = null;

			OutputStream output = null;

			OutputStreamWriter outr = null;

			newUrl = new URL(url);

			httpConn = (HttpURLConnection) newUrl.openConnection();

			HttpURLConnection.setFollowRedirects(true);

			httpConn.setDoOutput(true);

			httpConn.setRequestMethod("POST");

			httpConn.setRequestProperty("Content-Type", "text/xml");

			httpConn.connect();

			output = httpConn.getOutputStream();

			outr = new OutputStreamWriter(output);

			// 写入请求参数

			outr.write(params.toString().toCharArray(), 0, params .toString().length());

			outr.flush();

			outr.close();

//        System.out.println("send ok");

			int code = httpConn.getResponseCode();

//        System.out.println("code " + code);

//        System.out.println(httpConn.getResponseMessage());

			//读取响应内容

			String sCurrentLine = "";

			if (code == 200)

			{

			    java.io.InputStream is = httpConn.getInputStream();

			    BufferedReader reader = new BufferedReader(

			            new InputStreamReader(is));

			    while ((sCurrentLine = reader.readLine()) != null)

			        if (sCurrentLine.length() > 0)

			            sTotalString = sTotalString + sCurrentLine.trim();

			} else

			{

			    sTotalString = "远程服务器连接失败,错误代码:" + code;

			}

			System.out.println("response:" + sTotalString);

		} catch (MalformedURLException e) {

			e.printStackTrace();

		} catch (ProtocolException e) {

			e.printStackTrace();

		} catch (IOException e) {

			e.printStackTrace();

		}

        return sTotalString;

	}