java根据经纬度获取地址
2024-06-13 14:22:31
本篇文章使用的是百度地图API
需求分析：
1.根据某一经纬度获取真实位置
2.根据某一位置获取经纬度
先创建HttpClientUtils工具类
package com.shengbangtec.utils;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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.InterruptedIOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.UnknownHostException;
import java.nio.charset.CodingErrorAction;
import java.util.List;
import java.util.Map;public class HttpClientUtils {/*** 连接池最大连接数*/private static final int MAX_TOTAL_CONNECTIONS = 4000;/*** 设置每个路由上的默认连接个数*/private static final int DEFAULT_MAX_PER_ROUTE = 200;/*** 请求的请求超时时间 单位：毫秒*/private static final int REQUEST_CONNECTION_TIMEOUT = 8 * 1000;/*** 请求的等待数据超时时间 单位：毫秒*/private static final int REQUEST_SOCKET_TIMEOUT = 8 * 1000;/*** 请求的连接超时时间 单位：毫秒*/private static final int REQUEST_CONNECTION_REQUEST_TIMEOUT = 5 * 1000;/*** 连接闲置多久后需要重新检测 单位：毫秒*/private static final int VALIDATE_AFTER_IN_ACTIVITY = 2 * 1000;/*** 关闭Socket时，要么发送完所有数据，要么等待多少秒后，就关闭连接，此时socket.close()是阻塞的 单位秒*/private static final int SOCKET_CONFIG_SO_LINGER = 60;/*** 接收数据的等待超时时间,即读超时时间，单位ms*/private static final int SOCKET_CONFIG_SO_TIMEOUT = 5 * 1000;/*** 重试次数*/private static int RETRY_COUNT = 5;/*** 声明为 static volatile,会迫使线程每次读取时作为一个全局变量读取*/private static volatile CloseableHttpClient httpClient = null;/*** @param uri* @return String* @description get请求方式* @author: long.he01*/public static String doGet(String uri) {StringBuilder result = new StringBuilder();try {String res = "";URL url = new URL(uri);HttpURLConnection conn = (HttpURLConnection) url.openConnection();BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));String line;while ((line = in.readLine()) != null) {res += line+"\n";}in.close();return res;}catch (Exception e) {e.printStackTrace();return null;}}/*** @param uri* @param params* @return string* @description 带map参数get请求, 此方法会将map参数拼接到连接地址上。*/public static String doGet(String uri, Map<String, String> params) {return doGet(getGetUrlFromParams(uri, params));}/*** @param uri* @param params* @return String* @description 根据map参数拼接完整的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>() {@Overridepublic 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 带map参数的post请求方法*/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方法异常 ", e);} finally {httpPost.releaseConnection();}return responseBody;}/*** @param uri* @param param* @param contentType 根据具体请求情况指定,比如json可以是 ContentType.APPLICATION_JSON* @return String* @description 带单string参数执行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方法异常 ", e);} finally {httpPost.releaseConnection();}return responseBody;}/*** @return RequestConfig* @description: 获得请求配置信息*/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 通用执行请求方法*/private static String executeRequest(HttpUriRequest method) throws IOException {ResponseHandler<String> responseHandler = new ResponseHandler<String>() {@Overridepublic 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 单例获取httpclient实例*/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 :获取重试handler*/private static HttpRequestRetryHandler getRetryHandler() {// 请求重试处理return new HttpRequestRetryHandler() {@Overridepublic boolean retryRequest(IOException exception,int executionCount, HttpContext context) {if (executionCount >= RETRY_COUNT) {// 假设已经重试了5次，就放弃return false;}if (exception instanceof NoHttpResponseException) {// 假设server丢掉了连接。那么就重试return true;}if (exception instanceof SSLHandshakeException) {// 不要重试SSL握手异常return false;}if (exception instanceof InterruptedIOException) {// 超时return false;}if (exception instanceof UnknownHostException) {// 目标server不可达return false;}if (exception instanceof ConnectTimeoutException) {// 连接被拒绝return false;}if (exception instanceof SSLException) {// SSL握手异常return false;}HttpRequest request = HttpClientContext.adapt(context).getRequest();// 假设请求是幂等的，就再次尝试return !(request instanceof HttpEntityEnclosingRequest);}};}/*** @return PoolingHttpClientConnectionManager* @description 初始化连接池等配置信息*/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);/*** 以下参数设置含义分别为:* 1 是否立即发送数据，设置为true会关闭Socket缓冲，默认为false* 2 是否可以在一个进程关闭Socket后，即使它还没有释放端口，其它进程还可以立即重用端口* 3 接收数据的等待超时时间，单位ms* 4 关闭Socket时，要么发送完所有数据，要么等待多少秒后，就关闭连接，此时socket.close()是阻塞的* 5 开启监视TCP连接是否有效* 其中setTcpNoDelay(true)设置是否启用Nagle算法，设置true后禁用Nagle算法，默认为false（即默认启用Nagle算法）。* Nagle算法试图通过减少分片的数量来节省带宽。当应用程序希望降低网络延迟并提高性能时，* 它们可以关闭Nagle算法，这样数据将会更早地发 送，但是增加了网络消耗。 单位为：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;}}然后创建MapUtil工具类，根据经纬度获取详细地址
package com.shengbangtec.utils;import com.alibaba.fastjson.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;public class MapUtil {/*** 百度地图请求秘钥*/private static final String KEY = "*********";/*** 返回值类型*/private static final String OUTPUT = "json";/*** 根据地名获取经纬度*/private static final String GET_LNG_LAT_URL = "http://api.map.baidu.com/geocoder/v2/";/*** 根据经纬度获取地名*/private static final String GET_ADDRESS_URL = "http://api.map.baidu.com/geocoder/v2/";/*** 根据经纬度获得省市区信息* @param lon 纬度* @param lat 经度* @param coordtype 经纬度坐标系* @return*/public static Map<String, String> getCityByLonLat(double lon, double lat, String coordtype) {String location = lat + "," + lon;Map<String, String> params = new HashMap<>();params.put("location", location);params.put("coordtype", coordtype);Map<String, String> area = new HashMap<>();try {//拼装urlString url = joinUrl(params, OUTPUT, KEY, GET_ADDRESS_URL);JSONObject object = JSONObject.parseObject(HttpClientUtils.doGet(url));if(object != null && object.getString("result") != null){JSONObject result = JSONObject.parseObject(object.getString("result"));if(result != null && result.getString("addressComponent") != null){JSONObject addressComponent = JSONObject.parseObject(result.getString("addressComponent"));String formattedAddress = result.getString("formatted_address");String sematicDescription = result.getString("sematic_description");area.put("province", addressComponent.getString("province"));area.put("city", addressComponent.getString("city"));area.put("district", addressComponent.getString("district"));area.put("formattedAddress", formattedAddress);area.put("sematicDescription", sematicDescription);}}if(object != null && object.getString("status") != null && object.getString("status").equals("302")){area.put("status", "302");return area;}return area;}catch (Exception e) {e.printStackTrace();}return null;}public static JSONObject getCity(String address) {Map<String, String> params = new HashMap<>();params.put("address", address);try {//拼装urlString url = joinUrl(params, OUTPUT, KEY, GET_ADDRESS_URL);return JSONObject.parseObject(JSONObject.parseObject(HttpClientUtils.doGet(url)).getString("result"));}catch (Exception e) {e.printStackTrace();}return null;}/*** 拼接url字符串* @param params* @param output* @param key* @param url* @return* @throws IOException*/private static String joinUrl(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) {// 判断是否是第一个参数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("&ak=").append(key);return baseUrl.toString();}}java根据经纬度获取地址相关推荐
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