package com.letousky.lottery.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

public class SendGetPost {
	
	public static String sendGet(String url , String param)
	{
		String result = "";
		BufferedReader in = null;
		try
		{
			String urlName = url + "?" + param;
			URL realUrl = new URL(urlName);
			//打开和URL之间的连接
			URLConnection conn = realUrl.openConnection();
			//设置通用的请求属性
			conn.setRequestProperty("accept", "*/*"); 
			conn.setRequestProperty("connection", "Keep-Alive"); 
			conn.setRequestProperty("user-agent", 
			"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
			//建立实际的连接
			conn.connect(); 
			//获取所有响应头字段
			Map<String,List<String>> map = conn.getHeaderFields();
			//遍历所有的响应头字段
			/*for (String key : map.keySet())
			{
			System.out.println(key + "--->" + map.get(key));
			}*/
			//定义BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
			String line;
			while ((line = in.readLine())!= null)
			{
				result += line;
			}
		}
		catch(Exception e)
		{
				System.out.println("发送GET请求出现异常！" + e);
				e.printStackTrace();
		}
	//使用finally块来关闭输入流
	finally
	{
		try
		{
			if (in != null)
			{
				in.close();
			}
		}catch (IOException ex)
		{
			ex.printStackTrace();
		}
	}
			return result;
}
	/**
	* 向指定URL发送POST方法的请求
	* @param url 发送请求的URL
	* @param param 请求参数，请求参数应该是name1=value1&name2=value2的形式。
	* @return URL所代表远程资源的响应
	*/
	public static String sendPost(String url,String param)
	{
	PrintWriter out = null;
	BufferedReader in = null;
	String result = "";
	try
	{
	URL realUrl = new URL(url);
	//打开和URL之间的连接
	URLConnection conn = realUrl.openConnection();
	//设置通用的请求属性
	conn.setRequestProperty("accept", "*/*"); 
	conn.setRequestProperty("connection", "Keep-Alive"); 
	conn.setRequestProperty("user-agent", 
	"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"); 
	//发送POST请求必须设置如下两行
	conn.setDoOutput(true);
	conn.setDoInput(true);
	//获取URLConnection对象对应的输出流
	out = new PrintWriter(conn.getOutputStream());
	//发送请求参数
	out.print(param);
	//flush输出流的缓冲
	out.flush();
	//定义BufferedReader输入流来读取URL的响应
	in = new BufferedReader(
	new InputStreamReader(conn.getInputStream()));
	String line;

	while ((line = in.readLine())!= null)
	{
		result += "\n" + line;
	}
	}
	catch(Exception e)
	{
	System.out.println("发送POST请求出现异常！" + e);
	e.printStackTrace();
	}
	//使用finally块来关闭输出流、输入流
	finally
	{
	try
	{
	if (out != null)
	{
	out.close();
	}
	if (in != null)
	{
	in.close();
	}
	}
	catch (IOException ex)
	{
	ex.printStackTrace();
	}
	}
	return result;
	}


}
