(java功能篇)百度获取地址经纬度

拼搏现实的明天。 2023-10-10 10:37 6阅读 0赞

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][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"));  
\}

[http_api.map.baidu.com_geocoder_address]: http://api.map.baidu.com/geocoder?address