JAVA空气质量报告调用代码实例

JAVA空气质量报告调用代码实例代码描述：基于JA V A的空气质量接口调用代码实例数据来源：聚合数据import java.io.BufferedReader;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import .HttpURLConnection;import .URL;import .URLEncoder;import java.util.HashMap;import java.util.Map;import net.sf.json.JSONObject;/***空气质量调用示例代码－聚合数据*在线接口文档：/docs/33**/public class JuheDemo {public static final String DEF_CHATSET = "UTF-8";public static final int DEF_CONN_TIMEOUT = 30000;public static final int DEF_READ_TIMEOUT = 30000;public static String userAgent = "Mozilla/5.0 (Windows NT 6.1) Appl eWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";//配置您申请的KEYpublic static final String APPKEY ="*************************";//1.城市空气质量public static void getRequest1(){String result =null;String url =":8080/environment/air/cityair";/ /请求接口地址Map params = new HashMap();//请求参数params.put("city","");//城市名称的中文名称或拼音，如：上海或 s hanghaiparams.put("key",APPKEY);//APP Keytry{result =net(url, params, "GET");JSONObject object = JSONObject.fromObject(result);if(object.getInt("error_code")==0){System.out.println(object.get("result"));}else{System.out.println(object.get("error_code")+":"+object. get("reason"));}} catch(Exception e) {e.printStackTrace();}}//2.城市空气PM2.5指数public static void getRequest2(){String result =null;String url =":8080/environment/air/pm";//请求接口地址Map params = new HashMap();//请求参数params.put("city","");//城市名称的中文名称或拼音，如：上海或 s hanghaiparams.put("key",APPKEY);//APP Keytry{result =net(url, params, "GET");JSONObject object = JSONObject.fromObject(result);if(object.getInt("error_code")==0){System.out.println(object.get("result"));}else{System.out.println(object.get("error_code")+":"+object. get("reason"));}} catch(Exception e) {e.printStackTrace();}}//3.城市空气质量-城市列表public static void getRequest3(){String result =null;//请求接口地址Map params = new HashMap();//请求参数params.put("key",APPKEY);//APP Keytry{result =net(url, params, "GET");JSONObject object = JSONObject.fromObject(result);if(object.getInt("error_code")==0){System.out.println(object.get("result"));}else{System.out.println(object.get("error_code")+":"+object. get("reason"));}} catch(Exception e) {e.printStackTrace();}}//4.城市空气PM2.5指数-城市列表public static void getRequest4(){String result =null;String url =":8080/environment/air/pmCities"; //请求接口地址Map params = new HashMap();//请求参数params.put("key",APPKEY);//APP Keytry{result =net(url, params, "GET");JSONObject object = JSONObject.fromObject(result);if(object.getInt("error_code")==0){System.out.println(object.get("result"));}else{System.out.println(object.get("error_code")+":"+object. get("reason"));}} catch(Exception e) {e.printStackTrace();}}//5.城市辐射指数public static void getRequest5(){String result =null;求接口地址Map params = new HashMap();//请求参数params.put("city","");//城市名称的中文拼音，查询城市为“上海”，则输入：上海params.put("num","");//查询页码数，不写默认为第一页。

params.put("key",APPKEY);//APP Keytry{result =net(url, params, "GET");JSONObject object = JSONObject.fromObject(result);if(object.getInt("error_code")==0){System.out.println(object.get("result"));}else{System.out.println(object.get("error_code")+":"+object. get("reason"));}} catch(Exception e) {e.printStackTrace();}}public static void main(String[] args) {}/**** @param strUrl 请求地址* @param params 请求参数* @param method 请求方法* @return 网络请求字符串* @throws Exception*/public static String net(String strUrl, Map params,String method) th rows Exception {HttpURLConnection conn = null;BufferedReader reader = null;String rs = null;try{StringBuffer sb = new StringBuffer();if(method==null|| method.equals("GET")){strUrl = strUrl+"?"+urlencode(params);}URL url = new URL(strUrl);conn = (HttpURLConnection) url.openConnection();if(method==null|| method.equals("GET")){conn.setRequestMethod("GET");}else{conn.setRequestMethod("POST");conn.setDoOutput(true);}conn.setRequestProperty("User-agent", userAgent);conn.setUseCaches(false);conn.setConnectTimeout(DEF_CONN_TIMEOUT);conn.setReadTimeout(DEF_READ_TIMEOUT);conn.setInstanceFollowRedirects(false);conn.connect();if(params!= null&& method.equals("POST")) {try{DataOutputStream out = new DataOutputStream(conn.get OutputStream());out.writeBytes(urlencode(params));} catch(Exception e) {// TODO: handle exception}}InputStream is = conn.getInputStream();reader = new BufferedReader(new InputStreamReader(is, DEF_CH ATSET));String strRead = null;while((strRead = reader.readLine()) != null) {sb.append(strRead);}rs = sb.toString();} catch(IOException e) {e.printStackTrace();} finally{if(reader != null) {reader.close();}if(conn != null) {conn.disconnect();}}return rs;}//将map型转为请求参数型public static String urlencode(Map<String,Object>data) {StringBuilder sb = new StringBuilder();for(Map.Entry i : data.entrySet()) {try{sb.append(i.getKey()).append("=").append(URLEncoder.enc ode(i.getValue()+"","UTF-8")).append("&");} catch(UnsupportedEncodingException e) {e.printStackTrace();}}return sb.toString();}}。