Question

如何用java获取google地图经纬度，地址信息

Answer 1

第一步 、申请一个GOOGLE地图的KEY
1、根据地址获取经纬度
[java] view plain copy print?
public static void getGoogleLatLng() {  
        CloseableHttpClient httpclient = HttpClients.createDefault();  
        try {    
            // 创建httpget.      
            HttpGet httpget = new HttpGet("
上海市&sensor=false&key=");    
            logger.debug("executing request " + httpget.getURI());    
            // 执行get请求.      
            CloseableHttpResponse response = httpclient.execute(httpget);    
             
            try {    
                // 获取响应实体      
                HttpEntity entity = response.getEntity();    
                logger.debug("--------------------------------------");    
                // 打印响应状态      
                System.out.println(response.getStatusLine());    
                if (entity != null) {    
                    // 打印响应内容      
                    String str = EntityUtils.toString(entity);  
                    JSONObject o = (JSONObject) JSON.parse(str);  
                    JSONArray o2 = (JSONArray) o.get("results");  
                    JSONObject o3 =  (JSONObject) o2.get(0);  
                    JSONObject o4 = (JSONObject) o3.get("geometry");  
                    JSONObject o5 = (JSONObject)o4.get("location");  
                      
                    logger.debug("lat====>>>"+o5.get("lat")+";lng=====>>>"+o5.get("lng"));  
                }    
                logger.debug("------------------------------------");    
            } finally {    
                response.close();    
            }    
        } catch (ClientProtocolException e) {    
            e.printStackTrace();    
            logger.debug(e.getMessage());  
        } catch (ParseException e) {    
            e.printStackTrace();    
            logger.debug(e.getMessage());  
        } catch (IOException e) {    
            e.printStackTrace();    
            logger.debug(e.getMessage());  
        } finally {    
            // 关闭连接,释放资源      
            try {    
                httpclient.close();    
            } catch (IOException e) {    
                e.printStackTrace();    
                logger.debug(e.getMessage());  
            }    
        }  
    }  


第二步、根据经纬度获取地址信息

[java] view plain copy print?
public static String getGoogleAddres(BigDecimal lat, BigDecimal lng) {  
        String addr = "";  
        if(null == lat || null == lng){  
            return addr;  
        }  
        CloseableHttpClient httpclient = HttpClients.createDefault();  
        try {              
              
            // 创建httpget.   
            HttpGet httpget = new HttpGet(MessageFormat.format("
{0},{1}&sensor=false&&language=zh-CN&key=", lat, lng));    
            logger.debug("executing request " + httpget.getURI());    
            // 执行get请求.  
            CloseableHttpResponse response = httpclient.execute(httpget);    
             
            try {    
                // 获取响应实体      
                HttpEntity entity = response.getEntity();    
                logger.debug("--------------------------------------");    
                // 打印响应状态      
                System.out.println(response.getStatusLine());    
                if (entity != null) {    
                    // 打印响应内容      
                    String str = EntityUtils.toString(entity);  
                    JSONObject o = (JSONObject) JSON.parse(str);  
                    JSONArray o1 = (JSONArray)o.get("results");  
                      
                    JSONObject o2 = (JSONObject)o1.get(0);  
                    if(null != o2){  
                        addr = String.valueOf(o2.get("formatted_address"));  
                        logger.debug("详细地址====>>>"+addr);  
                        JSONArray o3 = (JSONArray)o2.get("addressComponent");  
                        logger.debug("地址明细====>>>"+JSONArray.toJSONString(o3));  
                    }  
                }  
            } finally {  
                response.close();    
            }    
        } catch (ClientProtocolException e) {    
            e.printStackTrace();    
            logger.debug(e.getMessage());  
        } catch (ParseException e) {    
            e.printStackTrace();    
            logger.debug(e.getMessage());  
        } catch (IOException e) {    
            e.printStackTrace();    
            logger.debug(e.getMessage());  
        } finally {    
            // 关闭连接,释放资源      
            try {    
                httpclient.close();    
            } catch (IOException e) {    
                e.printStackTrace();    
                logger.debug(e.getMessage());  
            }    
        }  
        return addr;  
    }

来自戴子的博客专栏，希望可以给你带来帮助