Java環(huán)境中高德地圖Api怎么用

這篇文章將為大家詳細(xì)講解有關(guān)Java環(huán)境中高德地圖Api怎么用，小編覺(jué)得挺實(shí)用的，因此分享給大家做個(gè)參考，希望大家閱讀完這篇文章后可以有所收獲。

Java高德地圖Api的使用

使用高德經(jīng)緯度獲取地址信息

一些準(zhǔn)備用到的常量

/**
     * 高德地圖請(qǐng)求秘鑰
     */
    private static final String KEY = "密鑰,可以去高德地圖免費(fèi)申請(qǐng)";
    /**
     * 返回值類型
     */
    private static final String OUTPUT = "JSON";
    /**
     * 根據(jù)地名獲取高德經(jīng)緯度Api
     */
    private static final String GET_LNG_LAT_URL = "http://restapi.amap.com/v3/geocode/geo";
    /**
     * 根據(jù)高德經(jīng)緯度獲取地名Api
     */
    private static final String GET_ADDRESS_URL = http://restapi.amap.com/v3/geocode/regeo;

HttpClientUtils

import com.google.common.base.Function;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.Lists;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NoHttpResponseException;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.*;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpRequestRetryHandler;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.config.ConnectionConfig;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.config.SocketConfig;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HttpContext;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLHandshakeException;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.net.UnknownHostException;
import java.nio.charset.CodingErrorAction;
import java.util.List;
import java.util.Map;
/**
 * HttpClient工具類
 */
public class HttpClientUtils {
    /**
     * 連接池最大連接數(shù)
     */
    private static final int MAX_TOTAL_CONNECTIONS = 4000;
    /**
     * 設(shè)置每個(gè)路由上的默認(rèn)連接個(gè)數(shù)
     */
    private static final int DEFAULT_MAX_PER_ROUTE = 200;
    /**
     * 請(qǐng)求的請(qǐng)求超時(shí)時(shí)間 單位：毫秒
     */
    private static final int REQUEST_CONNECTION_TIMEOUT = 8 * 1000;
    /**
     * 請(qǐng)求的等待數(shù)據(jù)超時(shí)時(shí)間 單位：毫秒
     */
    private static final int REQUEST_SOCKET_TIMEOUT = 8 * 1000;
    /**
     * 請(qǐng)求的連接超時(shí)時(shí)間 單位：毫秒
     */
    private static final int REQUEST_CONNECTION_REQUEST_TIMEOUT = 5 * 1000;
    /**
     * 連接閑置多久后需要重新檢測(cè) 單位：毫秒
     */
    private static final int VALIDATE_AFTER_IN_ACTIVITY = 2 * 1000;
    /**
     * 關(guān)閉Socket時(shí)，要么發(fā)送完所有數(shù)據(jù)，要么等待多少秒后，就關(guān)閉連接，此時(shí)socket.close()是阻塞的　單位秒
     */
    private static final int SOCKET_CONFIG_SO_LINGER = 60;
    /**
     * 接收數(shù)據(jù)的等待超時(shí)時(shí)間,即讀超時(shí)時(shí)間，單位ms
     */
    private static final int SOCKET_CONFIG_SO_TIMEOUT = 5 * 1000;
    /**
     * 重試次數(shù)
     */
    private static int RETRY_COUNT = 5;
    /**
     * 聲明為 static volatile,會(huì)迫使線程每次讀取時(shí)作為一個(gè)全局變量讀取
     */
    private static volatile CloseableHttpClient httpClient = null;
    /**
     * @param uri
     * @return String
     * @description get請(qǐng)求方式
     * @author: long.he01
     */
    public static String doGet(String uri) {
        String responseBody;
        HttpGet httpGet = new HttpGet(uri);
        try {
            httpGet.setConfig(getRequestConfig());
            responseBody = executeRequest(httpGet);
        } catch (IOException e) {
            throw new RuntimeException("httpclient doGet方法異常 ", e);
        } finally {
            httpGet.releaseConnection();
        }
        return responseBody;
    }
    /**
     * @param uri
     * @param params
     * @return string
     * @description 帶map參數(shù)get請(qǐng)求, 此方法會(huì)將map參數(shù)拼接到連接地址上。
     */
    public static String doGet(String uri, Map<String, String> params) {
        return doGet(getGetUrlFromParams(uri, params));
    }
    /**
     * @param uri
     * @param params
     * @return String
     * @description 根據(jù)map參數(shù)拼接完整的url地址
     */
    private static String getGetUrlFromParams(String uri, Map<String, String> params) {
        List<BasicNameValuePair> resultList = FluentIterable.from(params.entrySet()).transform(
                new Function<Map.Entry<String, String>, BasicNameValuePair>() {
                    @Override
                    public BasicNameValuePair apply(Map.Entry<String, String> innerEntry) {
                        return new BasicNameValuePair(innerEntry.getKey(), innerEntry.getValue());
                    }
                }).toList();
        String paramSectionOfUrl = URLEncodedUtils.format(resultList, Consts.UTF_8);
        StringBuffer resultUrl = new StringBuffer(uri);
        if (StringUtils.isEmpty(uri)) {
            return uri;
        } else {
            if (!StringUtils.isEmpty(paramSectionOfUrl)) {
                if (uri.endsWith("?")) {
                    resultUrl.append(paramSectionOfUrl);
                } else {
                    resultUrl.append("?").append(paramSectionOfUrl);
                }
            }
            return resultUrl.toString();
        }
    }
    /**
     * @param uri
     * @param params
     * @return String
     * @description 帶map參數(shù)的post請(qǐng)求方法
     */
    public static String doPost(String uri, Map<String, String> params) {
        String responseBody;
        HttpPost httpPost = new HttpPost(uri);
        try {
            List<NameValuePair> nvps = Lists.newArrayList();
            for (Map.Entry<String, String> entry : params.entrySet()) {
                String key = entry.getKey();
                String value = entry.getValue();
                nvps.add(new BasicNameValuePair(key, value));
            }
            httpPost.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8));
            httpPost.setConfig(getRequestConfig());
            responseBody = executeRequest(httpPost);
        } catch (Exception e) {
            throw new RuntimeException("httpclient doPost方法異常 ", e);
        } finally {
            httpPost.releaseConnection();
        }
        return responseBody;
    }
    /**
     * @param uri
     * @param param
     * @param contentType 根據(jù)具體請(qǐng)求情況指定,比如json可以是 ContentType.APPLICATION_JSON
     * @return String
     * @description 帶單string參數(shù)執(zhí)行post方法
     */
    public static String doPost(String uri, String param, ContentType contentType) {
        String responseBody;
        HttpPost httpPost = new HttpPost(uri);
        try {
            StringEntity reqEntity = new StringEntity(param, contentType);
            httpPost.setEntity(reqEntity);
            httpPost.setConfig(getRequestConfig());
            responseBody = executeRequest(httpPost);
        } catch (IOException e) {
            throw new RuntimeException("httpclient doPost方法異常 ", e);
        } finally {
            httpPost.releaseConnection();
        }
        return responseBody;
    }
    /**
     * @return RequestConfig
     * @description: 獲得請(qǐng)求配置信息
     */
    private static RequestConfig getRequestConfig() {
        RequestConfig defaultRequestConfig = RequestConfig.custom()
                //.setCookieSpec(CookieSpecs.DEFAULT)
                .setExpectContinueEnabled(true)
                //.setTargetPreferredAuthSchemes(Arrays.asList(AuthSchemes.NTLM, AuthSchemes.DIGEST))
                //.setProxyPreferredAuthSchemes(Arrays.asList(AuthSchemes.BASIC))
                .build();
        return RequestConfig.copy(defaultRequestConfig)
                .setSocketTimeout(REQUEST_CONNECTION_TIMEOUT)
                .setConnectTimeout(REQUEST_SOCKET_TIMEOUT)
                .setConnectionRequestTimeout(REQUEST_CONNECTION_REQUEST_TIMEOUT)
                .build();
    }
    /**
     * @param method
     * @return String
     * @throws IOException
     * @description 通用執(zhí)行請(qǐng)求方法
     */
    private static String executeRequest(HttpUriRequest method) throws IOException {
        ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
            @Override
            public String handleResponse(final HttpResponse response) throws IOException {
                int status = response.getStatusLine().getStatusCode();
                String result;
                if (status >= HttpStatus.SC_OK && status < HttpStatus.SC_MULTIPLE_CHOICES) {
                    HttpEntity entity = response.getEntity();
                    result = entity != null ? EntityUtils.toString(entity) : null;
                    EntityUtils.consume(entity);
                    return result;
                } else {
                    throw new ClientProtocolException("Unexpected response status: " + status);
                }
            }
        };
        String result = getHttpClientInstance().execute(method, responseHandler);
        return result;
    }
    /**
     * @return CloseableHttpClient
     * @description 單例獲取httpclient實(shí)例
     */
    private static CloseableHttpClient getHttpClientInstance() {
        if (httpClient == null) {
            synchronized (CloseableHttpClient.class) {
                if (httpClient == null) {
                    httpClient = HttpClients.custom().setConnectionManager(initConfig()).setRetryHandler(getRetryHandler()).build();
                }
            }
        }
        return httpClient;
    }
    /**
     * @return HttpRequestRetryHandler
     * @description :獲取重試handler
     */
    private static HttpRequestRetryHandler getRetryHandler() {
        // 請(qǐng)求重試處理
        return new HttpRequestRetryHandler() {
            @Override
            public boolean retryRequest(IOException exception,
                                        int executionCount, HttpContext context) {
                if (executionCount >= RETRY_COUNT) {
                    // 假設(shè)已經(jīng)重試了5次，就放棄
                    return false;
                }
                if (exception instanceof NoHttpResponseException) {
                    // 假設(shè)server丟掉了連接。那么就重試
                    return true;
                }
                if (exception instanceof SSLHandshakeException) {
                    // 不要重試SSL握手異常
                    return false;
                }
                if (exception instanceof InterruptedIOException) {
                    // 超時(shí)
                    return false;
                }
                if (exception instanceof UnknownHostException) {
                    // 目標(biāo)server不可達(dá)
                    return false;
                }
                if (exception instanceof ConnectTimeoutException) {
                    // 連接被拒絕
                    return false;
                }
                if (exception instanceof SSLException) {
                    // SSL握手異常
                    return false;
                }
                HttpRequest request = HttpClientContext.adapt(context).getRequest();
                // 假設(shè)請(qǐng)求是冪等的，就再次嘗試
                return !(request instanceof HttpEntityEnclosingRequest);
            }
        };
    }
    /**
     * @return PoolingHttpClientConnectionManager
     * @description 初始化連接池等配置信息
     */
    private static PoolingHttpClientConnectionManager initConfig() {
        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.INSTANCE)
                .register("https", new SSLConnectionSocketFactory(SSLContexts.createSystemDefault()))
                .build();
        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        /**
         * 以下參數(shù)設(shè)置含義分別為:
         * 1 是否立即發(fā)送數(shù)據(jù)，設(shè)置為true會(huì)關(guān)閉Socket緩沖，默認(rèn)為false
         * 2 是否可以在一個(gè)進(jìn)程關(guān)閉Socket后，即使它還沒(méi)有釋放端口，其它進(jìn)程還可以立即重用端口
         * 3 接收數(shù)據(jù)的等待超時(shí)時(shí)間，單位ms
         * 4 關(guān)閉Socket時(shí)，要么發(fā)送完所有數(shù)據(jù)，要么等待多少秒后，就關(guān)閉連接，此時(shí)socket.close()是阻塞的
         * 5 開(kāi)啟監(jiān)視TCP連接是否有效
         * 其中setTcpNoDelay(true)設(shè)置是否啟用Nagle算法，設(shè)置true后禁用Nagle算法，默認(rèn)為false（即默認(rèn)啟用Nagle算法）。
         * Nagle算法試圖通過(guò)減少分片的數(shù)量來(lái)節(jié)省帶寬。當(dāng)應(yīng)用程序希望降低網(wǎng)絡(luò)延遲并提高性能時(shí)，
         * 它們可以關(guān)閉Nagle算法，這樣數(shù)據(jù)將會(huì)更早地發(fā) 送，但是增加了網(wǎng)絡(luò)消耗。 單位為：毫秒
         */
        SocketConfig socketConfig = SocketConfig.custom()
                .setTcpNoDelay(true)
                .setSoReuseAddress(true)
                .setSoTimeout(SOCKET_CONFIG_SO_TIMEOUT)
                //.setSoLinger(SOCKET_CONFIG_SO_LINGER)
                //.setSoKeepAlive(true)
                .build();
        connManager.setDefaultSocketConfig(socketConfig);
        connManager.setValidateAfterInactivity(VALIDATE_AFTER_IN_ACTIVITY);
        ConnectionConfig connectionConfig = ConnectionConfig.custom()
                .setMalformedInputAction(CodingErrorAction.IGNORE)
                .setUnmappableInputAction(CodingErrorAction.IGNORE)
                .setCharset(Consts.UTF_8)
                .build();
        connManager.setDefaultConnectionConfig(connectionConfig);
        connManager.setDefaultMaxPerRoute(DEFAULT_MAX_PER_ROUTE);
        connManager.setMaxTotal(MAX_TOTAL_CONNECTIONS);
        return connManager;
    }
}

GaoDeMapUtils

import java.io.IOException;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
public class GaoDeMapUtils {
    /**
     * 高德地圖請(qǐng)求秘鑰
     */
    private static final String KEY = "密鑰,可以去高德地圖免費(fèi)申請(qǐng)";
    /**
     * 返回值類型
     */
    private static final String OUTPUT = "JSON";
    /**
     * 根據(jù)地名獲取高德經(jīng)緯度
     */
    private static final String GET_LNG_LAT_URL = "http://restapi.amap.com/v3/geocode/geo";
    /**
     * 根據(jù)高德經(jīng)緯度獲取地名
     */
    private static final String GET_ADDRESS_URL = "http://restapi.amap.com/v3/geocode/regeo";
    /**
     * 根據(jù)高德經(jīng)緯度獲取地址信息
     *
     * @param gdLon 高德地圖經(jīng)度
     * @param gdLat 高德地圖緯度
     * @return
     */
    public static String getAddressByLonLat(double gdLon, double gdLat) {
        String location = gdLon + "," + gdLat;
        Map<String, String> params = new HashMap<>();
        params.put("location", location);
        // Map<String, String> result = new HashMap<>();
        try {
            // 拼裝url
            String url = jointUrl(params, OUTPUT, KEY, GET_ADDRESS_URL);
            // 調(diào)用高德SDK
            return HttpClientUtils.doPost(url, params);
            // 解析Json字符串,獲取城市名稱
            // JSONObject jsonObject = JSON.parseObject(jsonResult);
            // String regeocode = jsonObject.getString("regeocode");
            // JSONObject regeocodeObj = JSON.parseObject(regeocode);
            // String address = regeocodeObj.getString("formatted_address");
            // 組裝結(jié)果
            // result.put(location, address);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
    /**
     * 根據(jù)地址信息獲取高德經(jīng)緯度
     *
     * @param address 地址信息
     * @return
     */
    public static String getLonLarByAddress(String address) {
        Map<String, String> params = new HashMap<>();
        params.put("address", address);
        // Map<String, String> result = new HashMap<>();
        try {
            // 拼裝url
            String url = jointUrl(params, OUTPUT, KEY, GET_LNG_LAT_URL);
            // 調(diào)用高德地圖SDK
            return HttpClientUtils.doPost(url, params);
            // 解析JSON字符串,取到高德經(jīng)緯度
            // JSONObject jsonObject = JSON.parseObject(jsonResult);
            // JSONArray geocodes = jsonObject.getJSONArray("geocodes");
            // String geocode = JSON.toJSONString(geocodes.get(0));
            // JSONObject geocodeObj = JSON.parseObject(geocode);
            // String lonAndLat = geocodeObj.getString("location");
            // 組裝結(jié)果
            // result.put(address, lonAndLat);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
    /**
     * 拼接請(qǐng)求字符串
     *
     * @param params
     * @param output
     * @param key
     * @param url
     * @return
     * @throws IOException
     */
    private static String jointUrl(Map<String, String> params, String output, String key, String url) throws IOException {
        StringBuilder baseUrl = new StringBuilder();
        baseUrl.append(url);
        int index = 0;
        Set<Map.Entry<String, String>> entrys = params.entrySet();
        for (Map.Entry<String, String> param : entrys) {
            // 判斷是否是第一個(gè)參數(shù)
            if (index == 0) {
                baseUrl.append("?");
            } else {
                baseUrl.append("&");
            }
            baseUrl.append(param.getKey()).append("=").append(URLEncoder.encode(param.getValue(), "utf-8"));
            index++;
        }
        baseUrl.append("&output=").append(output).append("&key=").append(key);
        return baseUrl.toString();
    }
}

返回結(jié)果

// 這是根據(jù)高德經(jīng)緯度獲取的返回報(bào)文
{"status":"1","info":"OK","infocode":"10000","regeocode":{"formatted_address":"北京市東城區(qū)東華門(mén)街道天安門(mén)","addressComponent":{"country":"中國(guó)","province":"北京市","city":[],"citycode":"010","district":"東城區(qū)","adcode":"110101","township":"東華門(mén)街道","towncode":"110101001000","neighborhood":{"name":[],"type":[]},"building":{"name":"天安門(mén)","type":"風(fēng)景名勝;風(fēng)景名勝相關(guān);旅游景點(diǎn)"},"streetNumber":{"street":"廣場(chǎng)東側(cè)路","number":"44號(hào)","location":"116.39795,39.9097239","direction":"北","distance":"113.709"},"businessAreas":[{"location":"116.3998109423077,39.90717459615385","name":"天安門(mén)","id":"110101"},{"location":"116.39981058278138,39.92383706953642","name":"景山","id":"110101"},{"location":"116.4118112683418,39.91461494422115","name":"王府井","id":"110101"}]}}}
// 這是根據(jù)地址名稱獲取的返回報(bào)文
{"status":"1","info":"OK","infocode":"10000","count":"1","geocodes":[{"formatted_address":"北京市東城區(qū)天安門(mén)","province":"北京市","citycode":"010","city":"北京市","district":"東城區(qū)","township":[],"neighborhood":{"name":[],"type":[]},"building":{"name":[],"type":[]},"adcode":"110101","street":[],"number":[],"location":"116.397573,39.908743","level":"興趣點(diǎn)"}]}

Java調(diào)用高德Api獲取經(jīng)緯度

1.第一步使用高德api需要先注冊(cè)高德賬號(hào)申請(qǐng)Key

高德開(kāi)放平臺(tái):https://lbs.amap.com/

2.第二步詳細(xì)閱讀高德api開(kāi)發(fā)指南

指南地址:https://lbs.amap.com/api/webservice/guide/api/georegeo/#geo

3.編寫(xiě)業(yè)務(wù)代碼

首先這里需要判斷成功把值返回失敗默認(rèn)賦值

其次筆者是使用的map形式返回值大家也可以嘗試其他方法返回得到的值

對(duì)于最終得到的值因?yàn)槭橇恍?shù)這里是用的雙精度型存儲(chǔ)然后轉(zhuǎn)換為數(shù)據(jù)庫(kù)存儲(chǔ)值的類型按自己數(shù)據(jù)庫(kù)的類型為準(zhǔn)

4.編寫(xiě)用作調(diào)用經(jīng)緯度的類

將調(diào)用得到的json格式的數(shù)據(jù)進(jìn)行處理得到所需要的經(jīng)緯度的值封裝入定義好的map參數(shù)中

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