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基于JAVA的违章查询助手数据调用代码实例

2016-12-20 13:17| 发布者: zhangjf| 查看: 469| 评论: 0

摘要: 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.UnsupportedEncodingExcepti ...
[Java]代码
  1. import java.io.BufferedReader;
  2. import java.io.DataOutputStream;
  3. import java.io.IOException;
  4. import java.io.InputStream;
  5. import java.io.InputStreamReader;
  6. import java.io.UnsupportedEncodingException;
  7. import java.net.HttpURLConnection;
  8. import java.net.URL;
  9. import java.net.URLEncoder;
  10. import java.util.HashMap;
  11. import java.util.Map;
  13. import net.sf.json.JSONObject;
  15. /**
  16. *全国车辆违章调用示例代码 － 聚合数据
  17. *在线接口文档：http://www.juhe.cn/docs/36
  18. **/
  20. public class JuheDemo {
  21. public static final String DEF_CHATSET = "UTF-8";
  22. public static final int DEF_CONN_TIMEOUT = 30000;
  23. public static final int DEF_READ_TIMEOUT = 30000;
  24. 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";
  26. //配置您申请的KEY
  27. public static final String APPKEY ="*************************";
  29. //1.获取支持城市参数接口
  30. public static void getRequest1(){
  31. String result =null;
  32. String url ="http://v.juhe.cn/wz/citys";//请求接口地址
  33. Map params = new HashMap();//请求参数
  34. params.put("province","");//默认全部，省份简写，如：ZJ、JS
  35. params.put("dtype","");//返回数据格式：json或xml或jsonp,默认json
  36. params.put("format","");//格式选择1或2，默认1
  37. params.put("callback","");//返回格式选择jsonp时，必须传递
  38. params.put("key",APPKEY);//你申请的key
  40. try {
  41. result =net(url, params, "GET");
  42. JSONObject object = JSONObject.fromObject(result);
  43. if(object.getInt("error_code")==0){
  44. System.out.println(object.get("result"));
  45. }else{
  46. System.out.println(object.get("error_code")+":"+object.get("reason"));
  47. }
  48. } catch (Exception e) {
  49. e.printStackTrace();
  50. }
  51. }
  53. //2.请求违章查询接口
  54. public static void getRequest2(){
  55. String result =null;
  56. String url ="http://v.juhe.cn/wz/query";//请求接口地址
  57. Map params = new HashMap();//请求参数
  58. params.put("dtype","");//返回数据格式：json或xml或jsonp,默认json
  59. params.put("callback","");//返回格式选择jsonp时，必须传递
  60. params.put("key",APPKEY);//你申请的key
  61. params.put("city","");//城市代码 *
  62. params.put("hphm","");//号牌号码 完整7位 ,需要utf8 urlencode*
  63. params.put("hpzl","");//号牌类型，默认02
  64. params.put("engineno","");//发动机号 (根据城市接口中的参数填写)
  65. params.put("classno","");//车架号 (根据城市接口中的参数填写)
  67. try {
  68. result =net(url, params, "GET");
  69. JSONObject object = JSONObject.fromObject(result);
  70. if(object.getInt("error_code")==0){
  71. System.out.println(object.get("result"));
  72. }else{
  73. System.out.println(object.get("error_code")+":"+object.get("reason"));
  74. }
  75. } catch (Exception e) {
  76. e.printStackTrace();
  77. }
  78. }
  80. //3.接口剩余请求次数查询
  81. public static void getRequest3(){
  82. String result =null;
  83. String url ="http://v.juhe.cn/wz/status";//请求接口地址
  84. Map params = new HashMap();//请求参数
  85. params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
  86. params.put("dtype","");//返回数据的格式,xml或json，默认json
  88. try {
  89. result =net(url, params, "GET");
  90. JSONObject object = JSONObject.fromObject(result);
  91. if(object.getInt("error_code")==0){
  92. System.out.println(object.get("result"));
  93. }else{
  94. System.out.println(object.get("error_code")+":"+object.get("reason"));
  95. }
  96. } catch (Exception e) {
  97. e.printStackTrace();
  98. }
  99. }
  103. public static void main(String[] args) {
  105. }
  107. /**
  108. *
  109. * @param strUrl 请求地址
  110. * @param params 请求参数
  111. * @param method 请求方法
  112. * @return 网络请求字符串
  113. * @throws Exception
  114. */
  115. public static String net(String strUrl, Map params,String method) throws Exception {
  116. HttpURLConnection conn = null;
  117. BufferedReader reader = null;
  118. String rs = null;
  119. try {
  120. StringBuffer sb = new StringBuffer();
  121. if(method==null || method.equals("GET")){
  122. strUrl = strUrl+"?"+urlencode(params);
  123. }
  124. URL url = new URL(strUrl);
  125. conn = (HttpURLConnection) url.openConnection();
  126. if(method==null || method.equals("GET")){
  127. conn.setRequestMethod("GET");
  128. }else{
  129. conn.setRequestMethod("POST");
  130. conn.setDoOutput(true);
  131. }
  132. conn.setRequestProperty("User-agent", userAgent);
  133. conn.setUseCaches(false);
  134. conn.setConnectTimeout(DEF_CONN_TIMEOUT);
  135. conn.setReadTimeout(DEF_READ_TIMEOUT);
  136. conn.setInstanceFollowRedirects(false);
  137. conn.connect();
  138. if (params!= null && method.equals("POST")) {
  139. try {
  140. DataOutputStream out = new DataOutputStream(conn.getOutputStream());
  141. out.writeBytes(urlencode(params));
  142. } catch (Exception e) {
  143. // TODO: handle exception
  144. }
  145. }
  146. InputStream is = conn.getInputStream();
  147. reader = new BufferedReader(new InputStreamReader(is, DEF_CHATSET));
  148. String strRead = null;
  149. while ((strRead = reader.readLine()) != null) {
  150. sb.append(strRead);
  151. }
  152. rs = sb.toString();
  153. } catch (IOException e) {
  154. e.printStackTrace();
  155. } finally {
  156. if (reader != null) {
  157. reader.close();
  158. }
  159. if (conn != null) {
  160. conn.disconnect();
  161. }
  162. }
  163. return rs;
  164. }
  166. //将map型转为请求参数型
  167. public static String urlencode(Map<String,Object>data) {
  168. StringBuilder sb = new StringBuilder();
  169. for (Map.Entry i : data.entrySet()) {
  170. try {
  171. sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue()+"","UTF-8")).append("&");
  172. } catch (UnsupportedEncodingException e) {
  173. e.printStackTrace();
  174. }
  175. }
  176. return sb.toString();
  177. }
  178. }
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