HttpRequestProxy

/************************************************************************
日  期：		
作  者:		
版  本：      
描  述:	    
历  史：      
************************************************************************/
package jetsennet.net;

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.StringWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;

/**
 * http请求
 * @author lixiaomin
 *
 */
public class HttpRequestProxy
{

	/**
	 * 获取http内容
	 * @param requestUrl
	 * @return
	 * @throws Exception
	 */
	public static String get(String requestUrl) throws Exception
	{
		return get(requestUrl,"utf-8");
	}
	
	public static String get(String requestUrl,String charset) throws Exception
	{
		URL url = new URL(requestUrl);
		HttpURLConnection connection = (HttpURLConnection) url.openConnection();
		StringWriter sw = new StringWriter();
		
		try
		{
			InputStream inStream = connection.getInputStream();
			InputStreamReader inr = new InputStreamReader(inStream, java.nio.charset.Charset.forName(charset));
			char[] buf = new char[8096];
			int size = 0;
			
			try{
				while ((size = inr.read(buf)) != -1)
					sw.write(buf, 0, size);
			}
			finally
			{
				sw.close();
				inr.close();
				inStream.close();
			}
		}		
		finally
		{
			connection.disconnect();
		}
		return sw.toString();
	}	
	
	/**
	 * 以POST方式发送内容并获取数据
	 * @param requestUrl
	 * @param content
	 * @return
	 * @throws Exception
	 */
	public static String send(String requestUrl,String content)throws Exception
	{
		return send(requestUrl,content,null,"utf-8");
	}
	
	public static String send(String requestUrl,String content,
			HashMap<String,String> requestProperties,String charset)throws Exception
	{
		URL url = new URL(requestUrl);
		HttpURLConnection connection = (HttpURLConnection) url.openConnection();
		connection.setDoOutput(true);
		connection.setDoInput(true);
		connection.setRequestMethod("POST");
		
		if(requestProperties!=null)
		{
			for(String key:requestProperties.keySet())
			{
				String keyValue = requestProperties.get(key);
				connection.setRequestProperty(key,keyValue);
				
				if("ConnectTimeOut".equalsIgnoreCase(key))
				{
					connection.setConnectTimeout(Integer.parseInt(keyValue));
				}
				else if("ReadTimeOut".equalsIgnoreCase(key))
				{
					connection.setReadTimeout(Integer.parseInt(keyValue));
				}
			}
		}

		OutputStream outStream = connection.getOutputStream();
		OutputStreamWriter osw = new OutputStreamWriter(outStream, java.nio.charset.Charset.forName(charset));		
		String response = null;
		
		try {
			try {
				osw.write(content);
			}
			finally {
				osw.close();
				outStream.close();
			}

			InputStream inStream = null;
			InputStreamReader inStreamReader = null;
			
			try {
				inStream = connection.getInputStream();
			}
			catch (Exception exception) {
				inStream = connection.getErrorStream();
			}
			
			inStreamReader = new InputStreamReader(inStream, java.nio.charset.Charset.forName(charset));
			StringWriter sw = new StringWriter();
			char[] buf = new char[8096];
			int size = 0;
			
			try
			{
				while ((size = inStreamReader.read(buf)) != -1)
					sw.write(buf, 0, size);
	
				response = sw.toString();
			}
			finally
			{
				sw.close();
				inStreamReader.close();
				inStream.close();
			}
		}
		finally {
			connection.disconnect();
		}
		
		return response;
	}
}