百度获取地址经纬度

来源：互联网发布：cacti 监控windows 编辑：程序博客网时间：2024/05/14 09:19

package com.mohe.map;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;

public class LatitudeUtils {

public static final String KEY_1 = "百度Key";

/**
* 返回输入地址的经纬度坐标 key lng(经度),lat(纬度)
*/
public static Map<String, String> getGeocoderLatitude(String address) {
  BufferedReader in = null;
  try {
   // 将地址转换成utf-8的16进制
   address = URLEncoder.encode(address, "UTF-8");

   // 如果有代理，要设置代理，没代理可注释
   // System.setProperty("http.proxyHost","192.168.1.188");
   // System.setProperty("http.proxyPort","3128");

URL tirc = new URL("http://api.map.baidu.com/geocoder?address="
+ address + "&output=json&key=" + KEY_1);

   in = new BufferedReader(new InputStreamReader(tirc.openStream(),
     "UTF-8"));
   String res;
   StringBuilder sb = new StringBuilder("");
   while ((res = in.readLine()) != null) {
    sb.append(res.trim());
   }
   String str = sb.toString();
   Map<String, String> map = null;
   if (!str.isEmpty()) {
    int lngStart = str.indexOf("lng\":");
    int lngEnd = str.indexOf(",\"lat");
    int latEnd = str.indexOf("},\"precise");
    if (lngStart > 0 && lngEnd > 0 && latEnd > 0) {
     String lng = str.substring(lngStart + 5, lngEnd);
     String lat = str.substring(lngEnd + 7, latEnd);
     map = new HashMap<String, String>();
     map.put("lng", lng);
     map.put("lat", lat);
     return map;
    }
   }
  } catch (Exception e) {
   e.printStackTrace();
  } finally {
   try {
    in.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
  }
  return null;
}

public static void main(String args[]) {
  Map<String, String> json = LatitudeUtils
    .getGeocoderLatitude("查询地址");
  System.out.println("lng : " + json.get("lng"));
  System.out.println("lat : " + json.get("lat"));
}

}