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package com.github.jackpanz.spring.util;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Map;

/**
 * Created by Administrator on 2016/4/14.
 */
public class HttpUtil {

    private static Logger logger = LoggerFactory.getLogger(HttpUtil.class);

    private static int connectTimeout = 10000;
    private static int readTimeout = 10000;

    private static Map requestPropertys = new HashMap() {
        {
            this.put("Content-type", "application/x-java-serialized-object;charset=utf-8");
        }
    };

    public static String doGet(String urlStr) {
        return http("get", urlStr, null, null, connectTimeout, readTimeout);
    }

    public static String doGet(String urlStr, int connectTimeout, int readTimeout) {
        return http("get", urlStr, null, null, connectTimeout, readTimeout);
    }

    public static String doPost(String urlStr, String parameters) {
        return http("post", urlStr, parameters, null, connectTimeout, readTimeout);
    }

    public static String doPost(String urlStr, String parameters, Map requestPropertys) {
        return http("post", urlStr, parameters, null, connectTimeout, readTimeout);
    }

    public static String doPost(String urlStr, String parameters, Map requestPropertys, int connectTimeout, int readTimeout) {
        return http("post", urlStr, parameters, requestPropertys, connectTimeout, readTimeout);
    }

    public static String http(String method, String urlStr, String parameters) {
        return http(method, urlStr, parameters, null, connectTimeout, readTimeout);
    }

    public static String http(String method, String urlStr, String parameters, Map parmaRequestProperty, int connectTimeout, int readTimeout) {

        Map mRequestPropertys = new HashMap();
        mRequestPropertys.putAll(requestPropertys);
        if (parmaRequestProperty != null) {
            mRequestPropertys.putAll(parmaRequestProperty);
        }

        InputStream inStrm = null;
        StringBuffer sb = new StringBuffer();
        OutputStreamWriter outputStreamWriter = null;

        try {
            URL url = new URL(urlStr);
            URLConnection rulConnection = url.openConnection();
            HttpURLConnection httpUrlConnection = (HttpURLConnection) rulConnection;
            for (Map.Entry entry : mRequestPropertys.entrySet()) {
                httpUrlConnection.setRequestProperty(entry.getKey(), entry.getValue());
            }
            httpUrlConnection.setRequestMethod(method.toUpperCase());
            httpUrlConnection.setDoOutput(true);
            httpUrlConnection.setDoInput(true);

            // 設置主機連接超時
            httpUrlConnection.setConnectTimeout(connectTimeout);
            // 設置從主機讀取數據超時
            httpUrlConnection.setReadTimeout(readTimeout);

            httpUrlConnection.connect();

            if (parameters != null) {
                outputStreamWriter = new OutputStreamWriter(httpUrlConnection.getOutputStream(), "utf-8");
                outputStreamWriter.write(parameters);
                outputStreamWriter.flush();
                outputStreamWriter.close();
            }

            inStrm = rulConnection.getInputStream();
            byte[] b = new byte[40960];
            for (int n; (n = inStrm.read(b)) != -1; ) {
                sb.append(new String(b, 0, n, "utf-8"));
            }

        } catch (IOException e) {
            logger.error(e.getMessage());
            return null;
        } finally {
            IOUtils.closeQuietly(outputStreamWriter);
            IOUtils.closeQuietly(inStrm);
        }

        return sb.toString();
    }


}