package com.stylefeng.guns.modular.system.controller.util;
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import org.apache.commons.codec.digest.DigestUtils;
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import org.apache.commons.lang.RandomStringUtils;
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import org.apache.commons.lang.StringUtils;
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import org.apache.commons.lang.time.DateFormatUtils;
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import javax.servlet.http.HttpServletRequest;
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import java.io.UnsupportedEncodingException;
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import java.util.*;
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/**
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* @program: publicpaydemo
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* @description: 工具类
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* @author: Mr.YS
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* @CreatDate: 2019/5/17/017 13:24
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*/
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public class Util {
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/**
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* 获取到订单号
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*
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* @param msgSrcId 消息来源编号 1017
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* @return 商户订单号 {来源编号(4位)}{时间(yyyyMMddmmHHssSSS)(17位)}{7位随机数}
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*/
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public static String getMerOrderId(String msgSrcId) {
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return msgSrcId + DateFormatUtils.format(new Date(), "yyyyMMddHHmmssSSS") + RandomStringUtils.randomNumeric(7);
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}
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/**
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* 获取商户订单号
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* @return
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*/
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public static String getMerchantOrderId() {
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return DateFormatUtils.format(new Date(), "yyyyMMddHHmmssSSS") + RandomStringUtils.randomNumeric(7);
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}
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/**
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* 获取到退货订单号refundOrderId
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*
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* @param msgSrcId 消息来源编号 1017
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* @return 商户订单号 {来源编号(4位)}{时间(yyyyMMddmmHHssSSS)(17位)}{7位随机数}
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*/
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public static String getRefundOrderId(String msgSrcId) {
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return msgSrcId + DateFormatUtils.format(new Date(), "yyyyMMddHHmmssSSS") + RandomStringUtils.randomNumeric(7);
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}
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// 获取HttpServletRequest里面的参数
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public static Map<String, String> getRequestParams(HttpServletRequest request) {
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Map<String, String[]> params = request.getParameterMap();
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Map<String, String> params2 = new HashMap<>();
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for (String key : params.keySet()) {
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String[] values = params.get(key);
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if (values.length > 0) {
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params2.put(key, request.getParameter(key));
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}
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}
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return params2;
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}
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public static String makeSign(String md5Key, Map<String, String> params) {
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String preStr = buildSignString(params); // 把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
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String text = preStr + md5Key;
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System.out.println("待签名字符串："+text);
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return DigestUtils.md5Hex(getContentBytes(text)).toUpperCase();
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//return DigestUtils.sha256Hex(getContentBytes(text)).toLowerCase();
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}
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// 构建签名字符串
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public static String buildSignString(Map<String, String> params) {
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// params.put("Zm","test_test");
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if (params == null || params.size() == 0) {
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return "";
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}
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List<String> keys = new ArrayList<>(params.size());
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for (String key : params.keySet()) {
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if ("sign".equals(key))
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continue;
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if (StringUtils.isEmpty(params.get(key)))
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continue;
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keys.add(key);
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}
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//System.out.println(listToString(keys));
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Collections.sort(keys);
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StringBuilder buf = new StringBuilder();
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for (int i = 0; i < keys.size(); i++) {
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String key = keys.get(i);
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String value = params.get(key);
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if (i == keys.size() - 1) {// 拼接时，不包括最后一个&字符
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buf.append(key + "=" + value);
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} else {
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buf.append(key + "=" + value + "&");
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}
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}
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return buf.toString();
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}
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// 根据编码类型获得签名内容byte[]
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public static byte[] getContentBytes(String content) {
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try {
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return content.getBytes("UTF-8");
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} catch (UnsupportedEncodingException e) {
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throw new RuntimeException("签名过程中出现错误");
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}
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}
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}
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