序列图

流程图

源码

SignUtils

package com.hnu.sign;import java.io.UnsupportedEncodingException;
import java.util.Arrays;
import java.util.Map;
import java.util.Set;
/*** @description:* @author: yuanhx* @create: 2020/12/23*/
public class SignUtils {/*** @Description: 生成sign* @Param:  * @params : map集合参数* @param @appSecret appSecret* @return: 返回sign* @Author: yuanhx* @date: 2020/12/23*/public static String generateSign(Map<String, Object> params, String appSecret) throws UnsupportedEncodingException {Set<String> keysSet = params.keySet();Object[] keys = keysSet.toArray();Arrays.sort(keys);StringBuilder temp = new StringBuilder();boolean first = true;for (Object key : keys) {Object value = params.get(key);String valueString = "";if (null != value && "" != value) {valueString = key + String.valueOf(value);}temp.append(valueString);}temp.append(appSecret);
//        StringBuilder temp2 = new StringBuilder();
//        temp2.append(appSecret);
//        temp2.append(temp);return MD5Util.md5Encrypt32Upper(temp.toString()).toUpperCase();//        MessageDigest md = MessageDigest.getInstance("SHA-1");
//        return byte2hex(md.digest(sb.toString().getBytes("UTF-8")));}private static String byte2hex(byte[] bytes) {StringBuilder sign = new StringBuilder();for (int i = 0; i < bytes.length; i++) {String hex = Integer.toHexString(bytes[i] & 0xFF);if (hex.length() == 1) {sign.append("0");}sign.append(hex.toUpperCase());}return sign.toString();}/*** @Description: map转string结果* @Params:  * @param null :* @return:* @Author: yuanhx* @date: 2020/12/23*/public static String mapToString(Map<String, Object> params){Set<String> keysSet = params.keySet();// 参数按照ANSII排序Object[] keys = keysSet.toArray();Arrays.sort(keys);StringBuilder temp = new StringBuilder();boolean first = true;for (Object key : keys) {if (first) {first = false;} else {temp.append("&");}temp.append(key).append("=");Object value = params.get(key);String valueString = "";if (null != value) {valueString = String.valueOf(value);}temp.append(valueString);}return temp.toString();}
}

MD5Util

package com.hnu.sign;import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;/*** 1.MD5加密字符串（32位大写）* 2.MD5加密字符串（32位小写）* <p>* MD5在线加密：https://md5jiami.51240.com/* 3.将二进制字节数组转换为十六进制字符串* 4.Unicode中文编码转换成字符串*/
public class MD5Util {/*** MD5加密字符串（32位大写）** @param string 需要进行MD5加密的字符串* @return 加密后的字符串（大写）*/public static String md5Encrypt32Upper(String string) {byte[] hash;try {//创建一个MD5算法对象，并获得MD5字节数组,16*8=128位hash = MessageDigest.getInstance("MD5").digest(string.getBytes("UTF-8"));} catch (NoSuchAlgorithmException e) {throw new RuntimeException("Huh, MD5 should be supported?", e);} catch (UnsupportedEncodingException e) {throw new RuntimeException("Huh, UTF-8 should be supported?", e);}//转换为十六进制字符串StringBuilder hex = new StringBuilder(hash.length * 2);for (byte b : hash) {if ((b & 0xFF) < 0x10) hex.append("0");hex.append(Integer.toHexString(b & 0xFF));}return hex.toString().toUpperCase();}/*** MD5加密字符串（32位小写）** @param string 需要进行MD5加密的字符串* @return 加密后的字符串（小写）*/public static String md5Encrypt32Lower(String string) {byte[] hash;try {//创建一个MD5算法对象，并获得MD5字节数组,16*8=128位hash = MessageDigest.getInstance("MD5").digest(string.getBytes("UTF-8"));} catch (NoSuchAlgorithmException e) {throw new RuntimeException("Huh, MD5 should be supported?", e);} catch (UnsupportedEncodingException e) {throw new RuntimeException("Huh, UTF-8 should be supported?", e);}//转换为十六进制字符串StringBuilder hex = new StringBuilder(hash.length * 2);for (byte b : hash) {if ((b & 0xFF) < 0x10) hex.append("0");hex.append(Integer.toHexString(b & 0xFF));}return hex.toString().toLowerCase();}/*** 将二进制字节数组转换为十六进制字符串** @param bytes 二进制字节数组* @return 十六进制字符串*/public static String bytesToHex(byte[] bytes) {StringBuffer hexStr = new StringBuffer();int num;for (int i = 0; i < bytes.length; i++) {num = bytes[i];if (num < 0) {num += 256;}if (num < 16) {hexStr.append("0");}hexStr.append(Integer.toHexString(num));}return hexStr.toString().toUpperCase();}/*** Unicode中文编码转换成字符串*/public static String unicodeToString(String str) {Pattern pattern = Pattern.compile("(\\\\u(\\p{XDigit}{4}))");Matcher matcher = pattern.matcher(str);char ch;while (matcher.find()) {ch = (char) Integer.parseInt(matcher.group(2), 16);str = str.replace(matcher.group(1), ch + "");}return str;}
}

HttpUtil

package com.hnu.sign;/*** @description:* @author: yuanhx* @create: 2020/12/23*/
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;/*** http 工具类*/
public class HttpUtil {public static String post(String requestUrl, String accessToken, String params)throws Exception {String contentType = "application/x-www-form-urlencoded";return HttpUtil.post(requestUrl, accessToken, contentType, params);}public static String post(String requestUrl, String accessToken, String contentType, String params)throws Exception {String encoding = "UTF-8";if (requestUrl.contains("nlp")) {encoding = "GBK";}return HttpUtil.post(requestUrl, accessToken, contentType, params, encoding);}public static String post(String requestUrl, String accessToken, String contentType, String params, String encoding)throws Exception {String url = requestUrl + "?access_token=" + accessToken;return HttpUtil.postGeneralUrl(url, contentType, params, encoding);}public static String postGeneralUrl(String generalUrl, String contentType, String params, String encoding)throws Exception {URL url = new URL(generalUrl);// 打开和URL之间的连接HttpURLConnection connection = (HttpURLConnection) url.openConnection();connection.setRequestMethod("POST");// 设置通用的请求属性connection.setRequestProperty("Content-Type", contentType);connection.setRequestProperty("Connection", "Keep-Alive");connection.setUseCaches(false);connection.setDoOutput(true);connection.setDoInput(true);// 得到请求的输出流对象DataOutputStream out = new DataOutputStream(connection.getOutputStream());out.write(params.getBytes(encoding));out.flush();out.close();// 建立实际的连接connection.connect();// 获取所有响应头字段Map<String, List<String>> headers = connection.getHeaderFields();// 遍历所有的响应头字段for (String key : headers.keySet()) {System.err.println(key + "--->" + headers.get(key));}// 定义 BufferedReader输入流来读取URL的响应BufferedReader in = null;in = new BufferedReader(new InputStreamReader(connection.getInputStream(), encoding));String result = "";String getLine;while ((getLine = in.readLine()) != null) {result += getLine;}in.close();System.err.println("result:" + result);return result;}
}

Demo

package com.hnu.sign;import java.util.HashMap;
import java.util.Map;/*** @description:* @author: yuanhx* @create: 2020/12/23*/
public class Demo {/** appKey **/static String appKey = "123456";/** appSecret**/static String appSecret = "youreAppSecret";static String nonce = "1211111";static String url = "http://XXX.api.XXX.cn/API/XXX?username=abc&password=bbc&product=XXXX";public static void main(String[] args) throws Exception {Map<String, Object> paramMap = new HashMap();long timestamp =System.currentTimeMillis();/*验签必须3数*/paramMap.put("timestamp",timestamp);paramMap.put("nonce", nonce);paramMap.put("appKey", appKey);paramMap.put("url", "http://XXX.api.XXX.cn/API/XXX");paramMap.put("username", "abc");paramMap.put("password", "bbc");paramMap.put("version", "1.2.0");paramMap.put("method", "");// body体数据对象paramMap.put("params", "{\"assignNo\":\"TEST018\"}");String sign = SignUtils.generateSign(paramMap,appSecret);System.out.println("sign:"+sign);
//        Map map = new HashMap();
//        map.put("timestamp",timestamp);
//        map.put("sign",sign);
//        String params = SignUtils.mapToString(map);
//        String result = HttpUtil.postGeneralUrl(url,"application/x-www-form-urlencoded;charset=UTF-8",
//                params, "UTF-8");
//        System.out.println(result);}
}

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sign签名验签方案及代码

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