阿里天气数据接口调用实现（Java和JS）

怼烎@ 2022-06-10 05:23 418阅读 0赞

# Java实现方式 #

主要代码：

package com.wheather;
    
    import java.util.HashMap;
    import java.util.Map;
    
    import org.apache.http.HttpResponse;
    import org.apache.http.util.EntityUtils;
    /** * 根据经度和纬度获取天气 * @author znph_张春玲 * */
    public class AliWheather { 
        public static void main(String[] args) {
            String host = "https://ali-weather.showapi.com";
            String path = "/gps-to-weather";
            String method = "GET";
            // appcode是你自己申请得到的
            String appcode = "acacbfc4fac247384439033848332996b28490cd77c8be";
            Map<String, String> headers = new HashMap<String, String>();
            headers.put("Authorization", "APPCODE " + appcode);
            Map<String, String> querys = new HashMap<String, String>();
            // 获取几天的数据
            querys.put("from", "5");
            // 经纬度
            querys.put("lat", "40.242266");
            querys.put("lng", "116.2278");
            // 
            querys.put("need3HourForcast", "0");
            querys.put("needAlarm", "0");
            querys.put("needHourData", "0");
            querys.put("needIndex", "0");
            querys.put("needMoreDay", "0");
    
            try {
                /** * 重要提示如下: HttpUtils请从 * https://github.com/aliyun/api-gateway-demo-sign-java/blob/master/src/main/java/com/aliyun/api/gateway/demo/util/HttpUtils.java * 下载 * * 相应的依赖请参照 * https://github.com/aliyun/api-gateway-demo-sign-java/blob/master/pom.xml */
                HttpResponse response = HttpUtils.doGet(host, path, method, headers, querys);
                System.out.println(response.toString());
                System.out.println("123456789");
                // 获取response的body
                System.out.println(EntityUtils.toString(response.getEntity()));
                System.out.println("end---");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
    }

调用的HttpUtils代码：

package com.wheather;
    import java.io.UnsupportedEncodingException;
    import java.net.URLEncoder;
    import java.security.KeyManagementException;
    import java.security.NoSuchAlgorithmException;
    import java.security.cert.X509Certificate;
    import java.util.ArrayList;
    import java.util.List;
    import java.util.Map;
    
    import javax.net.ssl.SSLContext;
    import javax.net.ssl.TrustManager;
    import javax.net.ssl.X509TrustManager;
    
    import org.apache.commons.lang3.StringUtils;
    import org.apache.http.HttpResponse;
    import org.apache.http.NameValuePair;
    import org.apache.http.client.HttpClient;
    import org.apache.http.client.entity.UrlEncodedFormEntity;
    import org.apache.http.client.methods.HttpDelete;
    import org.apache.http.client.methods.HttpGet;
    import org.apache.http.client.methods.HttpPost;
    import org.apache.http.client.methods.HttpPut;
    import org.apache.http.entity.ByteArrayEntity;
    import org.apache.http.entity.StringEntity;
    import org.apache.http.message.BasicNameValuePair;
    
    public class HttpUtils { 
    
        /** * get * * @param host * @param path * @param method * @param headers * @param querys * @return * @throws Exception */
        public static HttpResponse doGet(String host, String path, String method, 
                Map<String, String> headers, 
                Map<String, String> querys)
                throws Exception {      
            HttpClient httpClient = wrapClient(host);
    
            HttpGet request = new HttpGet(buildUrl(host, path, querys));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
    
            return httpClient.execute(request);
        }
    
        /** * post form * * @param host * @param path * @param method * @param headers * @param querys * @param bodys * @return * @throws Exception */
        public static HttpResponse doPost(String host, String path, String method, 
                Map<String, String> headers, 
                Map<String, String> querys, 
                Map<String, String> bodys)
                throws Exception {      
            HttpClient httpClient = wrapClient(host);
    
            HttpPost request = new HttpPost(buildUrl(host, path, querys));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
    
            if (bodys != null) {
                List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>();
    
                for (String key : bodys.keySet()) {
                    nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key)));
                }
                UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");
                formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
                request.setEntity(formEntity);
            }
    
            return httpClient.execute(request);
        }   
    
        /** * Post String * * @param host * @param path * @param method * @param headers * @param querys * @param body * @return * @throws Exception */
        public static HttpResponse doPost(String host, String path, String method, 
                Map<String, String> headers, 
                Map<String, String> querys, 
                String body)
                throws Exception {      
            HttpClient httpClient = wrapClient(host);
    
            HttpPost request = new HttpPost(buildUrl(host, path, querys));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
    
            if (StringUtils.isNotBlank(body)) {
                request.setEntity(new StringEntity(body, "utf-8"));
            }
    
            return httpClient.execute(request);
        }
    
        /** * Post stream * * @param host * @param path * @param method * @param headers * @param querys * @param body * @return * @throws Exception */
        public static HttpResponse doPost(String host, String path, String method, 
                Map<String, String> headers, 
                Map<String, String> querys, 
                byte[] body)
                throws Exception {      
            HttpClient httpClient = wrapClient(host);
    
            HttpPost request = new HttpPost(buildUrl(host, path, querys));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
    
            if (body != null) {
                request.setEntity(new ByteArrayEntity(body));
            }
    
            return httpClient.execute(request);
        }
    
        /** * Put String * @param host * @param path * @param method * @param headers * @param querys * @param body * @return * @throws Exception */
        public static HttpResponse doPut(String host, String path, String method, 
                Map<String, String> headers, 
                Map<String, String> querys, 
                String body)
                throws Exception {      
            HttpClient httpClient = wrapClient(host);
    
            HttpPut request = new HttpPut(buildUrl(host, path, querys));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
    
            if (StringUtils.isNotBlank(body)) {
                request.setEntity(new StringEntity(body, "utf-8"));
            }
    
            return httpClient.execute(request);
        }
    
        /** * Put stream * @param host * @param path * @param method * @param headers * @param querys * @param body * @return * @throws Exception */
        public static HttpResponse doPut(String host, String path, String method, 
                Map<String, String> headers, 
                Map<String, String> querys, 
                byte[] body)
                throws Exception {      
            HttpClient httpClient = wrapClient(host);
    
            HttpPut request = new HttpPut(buildUrl(host, path, querys));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
    
            if (body != null) {
                request.setEntity(new ByteArrayEntity(body));
            }
    
            return httpClient.execute(request);
        }
    
        /** * Delete * * @param host * @param path * @param method * @param headers * @param querys * @return * @throws Exception */
        public static HttpResponse doDelete(String host, String path, String method, 
                Map<String, String> headers, 
                Map<String, String> querys)
                throws Exception {      
            HttpClient httpClient = wrapClient(host);
    
            HttpDelete request = new HttpDelete(buildUrl(host, path, querys));
            for (Map.Entry<String, String> e : headers.entrySet()) {
                request.addHeader(e.getKey(), e.getValue());
            }
    
            return httpClient.execute(request);
        }
    
        private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException {
            StringBuilder sbUrl = new StringBuilder();
            sbUrl.append(host);
            if (!StringUtils.isBlank(path)) {
                sbUrl.append(path);
            }
            if (null != querys) {
                StringBuilder sbQuery = new StringBuilder();
                for (Map.Entry<String, String> query : querys.entrySet()) {
                    if (0 < sbQuery.length()) {
                        sbQuery.append("&");
                    }
                    if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {
                        sbQuery.append(query.getValue());
                    }
                    if (!StringUtils.isBlank(query.getKey())) {
                        sbQuery.append(query.getKey());
                        if (!StringUtils.isBlank(query.getValue())) {
                            sbQuery.append("=");
                            sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));
                        }                   
                    }
                }
                if (0 < sbQuery.length()) {
                    sbUrl.append("?").append(sbQuery);
                }
            }
    
            return sbUrl.toString();
        }
    
        private static HttpClient wrapClient(String host) {
            HttpClient httpClient = new DefaultHttpClient();
            if (host.startsWith("https://")) {
                sslClient(httpClient);
            }
    
            return httpClient;
        }
    
        private static void sslClient(HttpClient httpClient) {
            try {
                SSLContext ctx = SSLContext.getInstance("TLS");
                X509TrustManager tm = new X509TrustManager() {
                    public X509Certificate[] getAcceptedIssuers() {
                        return null;
                    }
                    public void checkClientTrusted(X509Certificate[] xcs, String str) {
    
                    }
                    public void checkServerTrusted(X509Certificate[] xcs, String str) {
    
                    }
                };
                ctx.init(null, new TrustManager[] { tm }, null);
                SSLSocketFactory ssf = new SSLSocketFactory(ctx);
                ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
                ClientConnectionManager ccm = httpClient.getConnectionManager();
                SchemeRegistry registry = ccm.getSchemeRegistry();
                registry.register(new Scheme("https", 443, ssf));
            } catch (KeyManagementException ex) {
                throw new RuntimeException(ex);
            } catch (NoSuchAlgorithmException ex) {
                throw new RuntimeException(ex);
            }
        }
    }

# 二 JS实现方式 #