package com.genersoft.iot.vmp.utils;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.net.Socket;
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import java.util.Base64;
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import com.genersoft.iot.vmp.gb28181.bean.BaiduPoint;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class GpsUtil {
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private static Logger logger = LoggerFactory.getLogger(GpsUtil.class);
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public static BaiduPoint Wgs84ToBd09(String xx, String yy) {
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try {
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Socket s = new Socket("api.map.baidu.com", 80);
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BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream(), "UTF-8"));
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OutputStream out = s.getOutputStream();
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StringBuffer sb = new StringBuffer("GET /ag/coord/convert?from=0&to=4");
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sb.append("&x=" + xx + "&y=" + yy);
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sb.append("&callback=BMap.Convertor.cbk_3976 HTTP/1.1\r\n");
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sb.append("User-Agent: Java/1.6.0_20\r\n");
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sb.append("Host: api.map.baidu.com:80\r\n");
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sb.append("Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2\r\n");
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sb.append("Connection: Close\r\n");
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sb.append("\r\n");
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out.write(sb.toString().getBytes());
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String json = "";
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String tmp = "";
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while ((tmp = br.readLine()) != null) {
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// logger.info(tmp);
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json += tmp;
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}
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s.close();
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int start = json.indexOf("cbk_3976");
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int end = json.lastIndexOf("}");
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if (start != -1 && end != -1 && json.contains("\"x\":\"")) {
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json = json.substring(start, end);
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String[] point = json.split(",");
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String x = point[1].split(":")[1].replace("\"", "");
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String y = point[2].split(":")[1].replace("\"", "");
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BaiduPoint bdPoint= new BaiduPoint();
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bdPoint.setBdLng(new String(decode(x)));
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bdPoint.setBdLat(new String(decode(y)));
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return bdPoint;
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//return (new String(decode(x)) + "," + new String(decode(y)));
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} else {
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logger.info("gps坐标无效！！");
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}
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out.close();
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br.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* BASE64解码
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* @param str
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* @return string
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*/
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public static byte[] decode(String str) {
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byte[] bt = null;
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final Base64.Decoder decoder = Base64.getDecoder();
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bt = decoder.decode(str); // .decodeBuffer(str);
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return bt;
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}
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}
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