package com.hx.util;

import net.sf.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;

/**
 * 腾讯地图工具
 * @author mgchen
 *
 */
public class TengXunMapUtil {

	/**key*/
	public static final String KEY_SHOP = "NDTBZ-XH6WX-TOB4C-TZFHG-2ORS3-UCBFA";
	/**签名校验*/
	public static final String SIGN = "qI6ZmfLk0IYt7PPWThwqXMjnNjjPzSaW";

	public static final String URL_LOCATION = "http://apis.map.qq.com/ws/geocoder/v1/?address={1}&key={2}";
	public static final String URL_CITY = "http://apis.map.qq.com/ws/geocoder/v1/?location={1}&key={2}";
	
	/**地址转换为经纬度*/
	public static String[] getLocation(String address, String key)
	{
		try{
			String str = sendGet("https://apis.map.qq.com/ws/geocoder/v1/", "address=" + URLEncoder.encode(address, "utf-8") + "&key=" + key);
			JSONObject obj = JSONObject.fromObject(str);
			int status = obj.optInt("status", -1);
			if(status == 0)
			{
				JSONObject rObj = obj.optJSONObject("result");
				if(rObj != null)
				{
					JSONObject lObj = rObj.optJSONObject("location");
					if(lObj != null)
					{
						Double lng = lObj.optDouble("lng", 0.0);
						Double lat = lObj.optDouble("lat", 0.0);
						if(lng != 0.0 && lat != 0.0)
						{
							return new String[]{lng.toString(), lat.toString()};
						}
						
					}
				}
			}
		}catch(Exception e)
		{
			e.printStackTrace();
		}
		
		return null;
	}

	/**地址转换为经纬度（签名校验）*/
	public static String[] getLocation(String address, String key,String sign) {
		try{
			sign =  MD5Util.MD5Encode("/ws/geocoder/v1?address=" + address + "&key=" + key+sign,null);
			String str = sendGet("https://apis.map.qq.com/ws/geocoder/v1", "address=" + address + "&key=" + key+"&sig="+sign);
			JSONObject obj = JSONObject.fromObject(str);
			int status = obj.optInt("status", -1);
			if(status == 0)
			{
				JSONObject rObj = obj.optJSONObject("result");
				if(rObj != null)
				{
					JSONObject lObj = rObj.optJSONObject("location");
					if(lObj != null)
					{
						Double lng = lObj.optDouble("lng", 0.0);
						Double lat = lObj.optDouble("lat", 0.0);
						if(lng != 0.0 && lat != 0.0)
						{
							return new String[]{lng.toString(), lat.toString()};
						}

					}
				}
			}
		}catch(Exception e) {
			e.printStackTrace();
		}

		return null;
	}
	
	/**
     * 向指定URL发送GET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结果
     */
    public static String sendGet(String url, String param) {
        String result = "";
        BufferedReader in = null;
        try {
            String urlNameString = url + "?" + param;
            System.out.println("urlNameString:"+urlNameString);
            URL realUrl = new URL(urlNameString);
            // 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", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36");
            // 建立实际的连接
            connection.connect();
            
//            // 获取所有响应头字段
//            Map<String, List<String>> map = connection.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(
                    connection.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 (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }
    
    public static void main(String[] args)
    {
    	System.out.println(sendGet("http://apis.map.qq.com/ws/geocoder/v1/", "address=" +"北京市海淀区彩和坊路海淀西大街74号" + "&key=" + "11"));
    }

    /**获取省/市*/
    public static String[] getAddress(String lat, String lng, String key)
    {
    	try{
	    	String str = sendGet("http://apis.map.qq.com/ws/geocoder/v1/", "location=" + lat + "," + lng + "&key=" + key);
			JSONObject obj = JSONObject.fromObject(str);
			if(obj != null && obj.optInt("status", -1) == 0)
			{
				obj = obj.optJSONObject("result");
				if(obj != null)
				{
					obj = obj.optJSONObject("address_component");
					if(obj != null)
					{
						String nation = obj.optString("nation");
						String province = obj.optString("province");
						String city = obj.optString("city");
						String area = obj.optString("district");
						String detail = obj.optString("street") + obj.optString("street_number");
						String[] addr = new String[]{
								new String(nation.getBytes(), "utf-8"),
								new String(province.getBytes(), "utf-8"), 
								new String(city.getBytes(), "utf-8"),
								new String(area.getBytes(), "utf-8"),
								new String(detail.getBytes(), "utf-8")
								};
						
						return addr;
					}
					
					return null;
				}
			}
    	}catch(Exception e)
    	{
    		e.printStackTrace();
    	}
    	return null;
    }
}