package cn.exrick.xboot.your.util;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

public class HttpUtil {

	public static String get(String url) {
		BufferedReader in = null;
		try {
			URL realUrl = new URL(url);
			// 打开和URL之间的连接
			URLConnection connection = realUrl.openConnection();
			// 设置通用的请求属性
			connection.setRequestProperty("accept", "*/*");
			connection.setRequestProperty("connection", "Keep-Alive");
			connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
			connection.setConnectTimeout(5000);
			connection.setReadTimeout(5000);
			// 建立实际的连接
			connection.connect();
			// 定义 BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
			StringBuffer sb = new StringBuffer();
			String line;
			while ((line = in.readLine()) != null) {
				sb.append(line);
			}
			return sb.toString();
		} catch (Exception e) {
		}
		// 使用finally块来关闭输入流
		finally {
			try {
				if (in != null) {
					in.close();
				}
			} catch (Exception e2) {
				e2.printStackTrace();
			}
		}
		return null;
	}

	public static String jsonPost2(String params,String strURL) {
		try {
			URL url = new URL(strURL);// 创建连接
			HttpURLConnection connection = (HttpURLConnection) url.openConnection();
			connection.setDoOutput(true);
			connection.setDoInput(true);
			connection.setUseCaches(false);
			connection.setInstanceFollowRedirects(true);
			connection.setRequestMethod("POST"); // 设置请求方式
			connection.setRequestProperty("Accept", "application/json"); // 设置接收数据的格式
			connection.setRequestProperty("Content-Type", "application/json"); // 设置发送数据的格式
			connection.connect();
			OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "UTF-8"); // utf-8编码
			out.append(params);
			out.flush();
			out.close();

			int code = connection.getResponseCode();
			InputStream is = null;
			if (code == 200) {
				is = connection.getInputStream();
			} else {
				is = connection.getErrorStream();
			}
			BufferedReader bReader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
			String line, resultStr = "";
			while (null != (line = bReader.readLine())) {
				resultStr += line;
			}
			bReader.close();
			return resultStr;
		} catch (IOException e) {
			return "error";
		}
	}

	public static String jsonPost3(StringBuffer params,String strURL) {
		try {
			URL url = new URL(strURL);// 创建连接
			HttpURLConnection connection = (HttpURLConnection) url.openConnection();
			connection.setDoOutput(true);
			connection.setDoInput(true);
			connection.setUseCaches(false);
			connection.setInstanceFollowRedirects(true);
			connection.setRequestMethod("POST"); // 设置请求方式
			connection.setRequestProperty("Accept", "application/json"); // 设置接收数据的格式
			connection.setRequestProperty("Content-Type", "application/json"); // 设置发送数据的格式
			connection.connect();
			OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "UTF-8"); // utf-8编码
			out.append(params);
			out.flush();
			out.close();

			int code = connection.getResponseCode();
			InputStream is = null;
			if (code == 200) {
				is = connection.getInputStream();
			} else {
				is = connection.getErrorStream();
			}

			BufferedReader bReader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
			String line, resultStr = "";
			while (null != (line = bReader.readLine())) {
				resultStr += line;
			}
			//System.out.println(resultStr);
			bReader.close();
			return resultStr;
		} catch (IOException e) {
			return "error";
		}
	}

}