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来源:http://www.open-open.com/code/view/1460548768480
- [Java]代码
- 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 java.net.HttpURLConnection;
- import java.net.URL;
- import java.net.URLEncoder;
- import java.util.HashMap;
- import java.util.Map;
-
- import net.sf.json.JSONObject;
-
- /**
- *全国车辆违章调用示例代码 - 聚合数据
- *在线接口文档:http://www.juhe.cn/docs/36
- **/
-
- 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) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";
-
- //配置您申请的KEY
- public static final String APPKEY ="*************************";
-
- //1.获取支持城市参数接口
- public static void getRequest1(){
- String result =null;
- String url ="http://v.juhe.cn/wz/citys";//请求接口地址
- Map params = new HashMap();//请求参数
- params.put("province","");//默认全部,省份简写,如:ZJ、JS
- params.put("dtype","");//返回数据格式:json或xml或jsonp,默认json
- params.put("format","");//格式选择1或2,默认1
- params.put("callback","");//返回格式选择jsonp时,必须传递
- params.put("key",APPKEY);//你申请的key
-
- try {
- 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.请求违章查询接口
- public static void getRequest2(){
- String result =null;
- String url ="http://v.juhe.cn/wz/query";//请求接口地址
- Map params = new HashMap();//请求参数
- params.put("dtype","");//返回数据格式:json或xml或jsonp,默认json
- params.put("callback","");//返回格式选择jsonp时,必须传递
- params.put("key",APPKEY);//你申请的key
- params.put("city","");//城市代码 *
- params.put("hphm","");//号牌号码 完整7位 ,需要utf8 urlencode*
- params.put("hpzl","");//号牌类型,默认02
- params.put("engineno","");//发动机号 (根据城市接口中的参数填写)
- params.put("classno","");//车架号 (根据城市接口中的参数填写)
-
- try {
- 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.接口剩余请求次数查询
- public static void getRequest3(){
- String result =null;
- String url ="http://v.juhe.cn/wz/status";//请求接口地址
- Map params = new HashMap();//请求参数
- params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
- params.put("dtype","");//返回数据的格式,xml或json,默认json
-
- try {
- 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) throws 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.getOutputStream());
- out.writeBytes(urlencode(params));
- } catch (Exception e) {
- // TODO: handle exception
- }
- }
- InputStream is = conn.getInputStream();
- reader = new BufferedReader(new InputStreamReader(is, DEF_CHATSET));
- 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.encode(i.getValue()+"","UTF-8")).append("&");
- } catch (UnsupportedEncodingException e) {
- e.printStackTrace();
- }
- }
- return sb.toString();
- }
- }
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