java中怎么实现动态口令登录，相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。
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1.实现一个ItsClient 客户端用来实例化调用验证功能
public class ItsClient {private static final String routing = "/v1.0/sectoken/otp_validation";// ! HTTPS消息验证地址private String httpsVerifyUrl = "";// ! otp ipAddrprivate String ipAddr = "";// ! otp portprivate String port = "";// ! otp appIDprivate String appID = "";// ! otp appKeyprivate String appKey = "";// ! 错误码private int errorCode = 0;// ! 错误消息private String errorMessage = "";TreeMap errorCodeTable = new TreeMap() {{put(200, "请求成功");put(400, "输入不合法,比如请求数据不是json");put(401, "AppID不合法");put(402, "指纹不合法");put(410, "非法用户，验证otp时,传入的uid有误,找不到用户");put(411, "错误的otp");put(412, "一个周期内动态口令只能使用一次");put(413, "已达一个周期内最大尝试次数");put(500, "ITS服务器内部错误");put(601, "参数错误");put(602, "sha1签名失败");put(603, "操作json失败");put(604, "url访问错误:");put(605, "较验返回指纹失败");}};public ItsClient() {this.ipAddr = ItsConf.GetIpAddr();this.port = ItsConf.GetPort();this.appID = ItsConf.GetOtpAppID();this.appKey = ItsConf.GetOtpAppKey();httpsVerifyUrl = "https://" + this.ipAddr + ':' + this.port + routing;}//获取错误信息public String GetErrorMessage() {return this.errorMessage;} //获取错误码public int GetErrorCode() {return this.errorCode;}public void SetError(int errorCode, String extMessage) {this.errorCode = errorCode;this.errorMessage = this.errorCodeTable.get(this.errorCode).toString() + extMessage;}public static String SHA1(String decript) throws NoSuchAlgorithmException {String ret = "";MessageDigest sha1 = MessageDigest.getInstance("SHA1");byte[] sha1bytes = sha1.digest(decript.getBytes());if (sha1bytes != null) {ret = new BASE64Encoder().encode(sha1bytes);}return ret;}public String EncodeJson(TreeMap map) {JSONObject jmap = new JSONObject(map);return jmap.toString();}public TreeMap DecodeJson(String jsonStr) throws ParseException {JSONObject jsonObject = new JSONObject(jsonStr);TreeMap retMap = new TreeMap();Iterator iter = jsonObject.keys();String key = null;Object value = null;while (iter.hasNext()) {key = iter.next();value = jsonObject.get(key);retMap.put(key, value);}return retMap;}public String BuildQueryStr(TreeMap params) {String queryStr = "";Iterator itr = params.keySet().iterator();while (itr.hasNext()) {String key = itr.next();queryStr += (key + "=" + params.get(key).toString() + "&");}return queryStr.substring(0, queryStr.length() - 1);}public boolean IsEmptyOrNull(String param) {return param == null || param.length() <= 0;}/** * @brief 验证otp * @param uid ITS主账号UID或已配置的从账号 * @param otp 需要验证的动态口令 * @return bool true: 成功, false: 失败 */@SuppressWarnings("serial")public boolean AuthOtp(final String uid, final String otp) {if (IsEmptyOrNull(this.ipAddr) || IsEmptyOrNull(this.port) || IsEmptyOrNull(this.appID)|| IsEmptyOrNull(this.appKey) || IsEmptyOrNull(uid) || IsEmptyOrNull(otp)) {SetError(601, "");return false;}TreeMap params = new TreeMap() {{put("app_id", appID);put("app_key", appKey);put("uid", uid);put("otp", otp);}};String qureyStr = this.BuildQueryStr(params);String fingerprint = "";try {fingerprint = SHA1(qureyStr);} catch (Exception ex) {ex.printStackTrace();SetError(602, ex.getMessage());return false;}params.remove("app_key");params.put("fingerprint", fingerprint);String postStr = "";try {postStr = EncodeJson(params);} catch (Exception ex) {ex.printStackTrace();SetError(603, "json encode" + ex.getMessage());return false;}HttpsClient conn = null;String res = "";try {conn = new HttpsClient();res = conn.post(this.httpsVerifyUrl, postStr); // 访问接口调取返回结果} catch (Exception ex) {ex.printStackTrace();SetError(604, ex.getMessage());return false;}TreeMap ret = null;try {ret = DecodeJson(res);} catch (Exception ex) {ex.printStackTrace();SetError(603, "json decode " + ex.getMessage());return false;}int retCode = (Integer) ret.get("status");if (200 != retCode) {SetError(retCode, "");return false;}return true;}}
2.实现一个HttpsClient 请求工具
public class HttpsClient { final static HostnameVerifier doNotVerifier = new HostnameVerifier() { public boolean verify(String hostname, SSLSession session) { return true; } }; /** * @brief 发送请求 * @param httpsUrl 请求的地址 * @param postStr 请求的数据 * @throws Exception */ public String post(String httpsUrl, String postStr) throws Exception { HttpsURLConnection conn = null; StringBuffer recvBuff = new StringBuffer(); String resData = ""; try { conn = (HttpsURLConnection) (new URL(httpsUrl)).openConnection(); conn.setHostnameVerifier(doNotVerifier); conn.setDoInput(true); conn.setDoOutput(true); conn.setRequestMethod("POST"); conn.setRequestProperty("Content-Type", " application/json"); conn.setRequestProperty("Content-Length", String.valueOf(postStr.getBytes("utf-8").length)); conn.setUseCaches(false); //设置为utf-8可以解决服务器接收时读取的数据中文乱码问题 conn.getOutputStream().write(postStr.getBytes("utf-8")); conn.getOutputStream().flush(); conn.getOutputStream().close(); BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream())); String line; while ((line = in.readLine()) != null) { recvBuff.append(line); } resData = recvBuff.toString(); return resData; } catch (MalformedURLException ex) { throw ex; } catch (IOException ex) { throw ex; } catch (Exception ex) { throw ex; } }}
3.实现Its一个配置用来配置Its服务器信息接口访问地址
public class ItsConf {// ITS服务器地址 1.1.1.1 或 xxx.xxx.com的形式private static String ipAddr = "";// ITS服务器端口private static String port = "";// OTP服务的AppIDprivate static String otpAppID = "";// OTP服务的AppKeyprivate static String otpAppKey = "";public static String GetIpAddr() {return ipAddr;}public static String GetPort() {return port;}public static String GetOtpAppID() {return otpAppID;}public static String GetOtpAppKey() {return otpAppKey;}}
4.接下来就是LoginContorller 完成口令认证
//username 用户名//code动态口令密码ItsClient itsClient = new ItsClient();if(itsClient.AuthOtp(username, code)){//认证成功,跳转页面}
看完上述内容，你们掌握java中怎么实现动态口令登录的方法了吗？如果还想学到更多技能或想了解更多相关内容，欢迎关注创新互联行业资讯频道，感谢各位的阅读！
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