基于JAVA的違章查詢助手?jǐn)?shù)據(jù)調(diào)用代碼實例
2018-07-20 來源：open-open
[Java]代碼
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;
/**
*全國車輛違章調(diào)用示例代碼 － 聚合數(shù)據(jù)
*在線接口文檔：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";
//配置您申請的KEY
public static final String APPKEY ="*************************";
//1.獲取支持城市參數(shù)接口
public static void getRequest1(){
String result =null;
String url ="http://v.juhe.cn/wz/citys";//請求接口地址
Map params = new HashMap();//請求參數(shù)
params.put("province","");//默認(rèn)全部，省份簡寫，如：ZJ、JS
params.put("dtype","");//返回數(shù)據(jù)格式：json或xml或jsonp,默認(rèn)json
params.put("format","");//格式選擇1或2，默認(rèn)1
params.put("callback","");//返回格式選擇jsonp時，必須傳遞
params.put("key",APPKEY);//你申請的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.請求違章查詢接口
public static void getRequest2(){
String result =null;
String url ="http://v.juhe.cn/wz/query";//請求接口地址
Map params = new HashMap();//請求參數(shù)
params.put("dtype","");//返回數(shù)據(jù)格式：json或xml或jsonp,默認(rèn)json
params.put("callback","");//返回格式選擇jsonp時，必須傳遞
params.put("key",APPKEY);//你申請的key
params.put("city","");//城市代碼 *
params.put("hphm","");//號牌號碼 完整7位 ,需要utf8 urlencode*
params.put("hpzl","");//號牌類型，默認(rèn)02
params.put("engineno","");//發(fā)動機號 (根據(jù)城市接口中的參數(shù)填寫)
params.put("classno","");//車架號 (根據(jù)城市接口中的參數(shù)填寫)
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.接口剩余請求次數(shù)查詢
public static void getRequest3(){
String result =null;
String url ="http://v.juhe.cn/wz/status";//請求接口地址
Map params = new HashMap();//請求參數(shù)
params.put("key",APPKEY);//應(yīng)用APPKEY(應(yīng)用詳細(xì)頁查詢)
params.put("dtype","");//返回數(shù)據(jù)的格式,xml或json，默認(rèn)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 請求地址
* @param params 請求參數(shù)
* @param method 請求方法
* @return 網(wǎng)絡(luò)請求字符串
* @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;
}
//將map型轉(zhuǎn)為請求參數(shù)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();
}
}
標(biāo)簽： 代碼 網(wǎng)絡(luò)
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