java调用天地图api获取地理信息

梦里梦外; 2024-03-02 04:29 10阅读 0赞

**目录**

1、注册账号登录

2、创建应用，获取key

3、查看接口示例

4、调用接口

4.1地理编码查询

4.2逆地理编码查询

--------------------

天地图网址：[天地图API][API]

#### 1、注册账号登录 ####

![a0096beca4a544f7847a423f7a29702a.png][]

#### 2、创建应用，获取key ####

![b0bd808823dc41eba94286865ffd35b6.png][]

#### 3、查看接口示例 ####

![36722236e9304741bf87c87486d3d75e.png][]

#### 4、调用接口 ####

##### 4.1地理编码查询 #####

public class TiandituAPICallExample2 {
        public static void main(String[] args) {
            // 创建 RestTemplate 实例
            RestTemplate restTemplate = new RestTemplate();
    
            try {
                // 构建 URL
                String baseUrl = "http://api.tianditu.gov.cn/geocoder";
                UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(baseUrl)
                        .queryParam("ds", "{\"keyWord\":\"北京市朝阳区酒仙桥路甲10号\"}")
                        .queryParam("tk", "你自己的key");
                String url = builder.toUriString();
    
                // 发送 GET 请求并获取响应
                ResponseEntity<String> response = restTemplate.getForEntity(url, String.class);
                String responseBody = response.getBody();
    
                // 打印响应结果
                System.out.println(responseBody);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

结果

![c102529aeb4a436a8cf78a12c117b730.png][]

封装获取地理坐标

public static Map<String,String> getCoordinate(String address) {
            // 创建 RestTemplate 实例
            RestTemplate restTemplate = new RestTemplate();
    
            try {
                // 构建 URL
                String baseUrl = "http://api.tianditu.gov.cn/geocoder";
                UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(baseUrl)
                        .queryParam("ds", "{\"keyWord\":\""+address+"\"}")
                        .queryParam("tk", "你自己的key");
                String url = builder.toUriString();
    
                // 发送 GET 请求并获取响应
                ResponseEntity<String> response = restTemplate.getForEntity(url, String.class);
                int statusCodeValue = response.getStatusCodeValue();
                if (statusCodeValue == 200) { // 表示成功
                    String responseBody = response.getBody();
                    // 创建 JsonReader 对象
                    JsonReader jsonReader = Json.createReader(new StringReader(responseBody));
    
                    // 解析 JSON 响应为 JsonObject
                    JsonObject jsonObject = jsonReader.readObject();
    
                    // 关闭 JsonReader
                    jsonReader.close();
                    // 访问解析后的值
                    JsonObject locationObj = jsonObject.getJsonObject("location");
                    //坐标点显示经度
                    double lon = locationObj.getJsonNumber("lon").numberValue().doubleValue();
                    //坐标点显示纬度
                    double lat = locationObj.getJsonNumber("lat").numberValue().doubleValue();
    
                    Map map = new HashMap();
                    map.put("lon",lon);
                    map.put("lat",lat);
                    return map;
                }
    
            } catch (Exception e) {
                e.printStackTrace();
            }
            return null;
        }

![b0ae285dcbb14391aa1ddad8608fa92d.png][]

##### 4.2逆地理编码查询 #####

通过坐标获取地理信息

public static String getAddress(Double lon, Double lat, String tk){
    
            String postStr = "{'lon':"+lon+",'lat':"+lat+",'ver':1}";
    
            String apiUrl = "http://api.tianditu.gov.cn/geocoder?postStr="+postStr+"&type=geocode&tk="+tk+"";
    
            StringBuilder response = null;
            try {
                // 创建 URL 对象
                URL url = new URL(apiUrl);
    
                // 打开连接
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    
                // 设置请求方法为 GET
                connection.setRequestMethod("GET");
    
                // 获取响应状态码
                int responseCode = connection.getResponseCode();
                System.out.println("Response code: " + responseCode);
    
                // 读取响应内容
                BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                response = new StringBuilder();
                String line;
                while ((line = reader.readLine()) != null) {
                    response.append(line);
                }
                reader.close();
    
                // 关闭连接
                connection.disconnect();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return response.toString();
        }

结果

![cc0a81ef4cf740b4be616567b96afe71.png][]

所需依赖

<dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-web</artifactId>
                <version>5.3.29</version>
            </dependency>
    
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>4.5.13</version>
            </dependency>
    
            <dependency>
                <groupId>javax.json</groupId>
                <artifactId>javax.json-api</artifactId>
                <version>1.1.4</version>
            </dependency>
            <dependency>
                <groupId>org.glassfish</groupId>
                <artifactId>javax.json</artifactId>
                <version>1.1.4</version>
            </dependency>

[API]: http://lbs.tianditu.gov.cn/home.html
[a0096beca4a544f7847a423f7a29702a.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/02/665654da15b342d08114773f6a0a5e35.png
[b0bd808823dc41eba94286865ffd35b6.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/02/e0554c7ea93145759c70a22eab045d47.png
[36722236e9304741bf87c87486d3d75e.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/02/e1406fd07b844006ad6346ee9ba47d7c.png
[c102529aeb4a436a8cf78a12c117b730.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/02/913255e7858f47ed8c80977bfc275f54.png
[b0ae285dcbb14391aa1ddad8608fa92d.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/02/0fac324ea6e14cfa957541e3408d0f7d.png
[cc0a81ef4cf740b4be616567b96afe71.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/02/b7ec35d1306d4b0e811feb562696d402.png