微信请求参数生成SHA1签名

package com.dhht.wechat.util;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;

import java.util.HashMap;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;

/**
 * @Author: sh
 * @Description: WechatUtil
 * @Date: 17:46 2019/10/15
 */
public class WechatUtil {

    final static String KEY_S = "SIGNKEY-";

    public static String getSignKey(String url){
        return KEY_S+url;
    }

    /**
     * 获取access_token
     *
     * @param appId
     * @param secret
     * @return
     */
    public static String getAccessToken(String appId, String secret) {
        String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appId + "&secret=" + secret;
        JSONObject jsonObject = SendMsgUtil.httpRequest(url, "GET", "{}");// 获取openid
        String access_token = jsonObject.getString("access_token");
        return access_token;
    }

    /**
     * 获取ticket
     *
     * @param accessToken
     * @return
     */
    public static String getJsapiTicket(String accessToken) {
        String url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + accessToken + "&type=jsapi";
        JSONObject jsonObject = SendMsgUtil.httpRequest(url, "GET", "{}");
        String ticket = jsonObject.getString("ticket");
        return ticket;
    }

    public static String geneJSSDKSign(String jsapiTicket, String url) {
        Map<String, String> configMap = new HashMap<>(8);
        String nonceStr = DateUtil.get32UUIDMilli();
        String timestamp = Long.toString(System.currentTimeMillis() / 1000);
        configMap.put("noncestr", nonceStr);
        configMap.put("jsapi_ticket", jsapiTicket);
        configMap.put("timestamp", timestamp);
        configMap.put("url", url);
        String sign = gengeSign(configMap);//SignUtils.createSign(configMap, "sha1", mechKey, null);
        configMap.put("signature",sign);
        configMap.remove("noncestr");
        configMap.put("nonceStr",nonceStr);
        Map result = new HashMap();
        result.put("code",1);
        result.put("message","OK");
        result.put("data",configMap);
        return JSON.toJSONString(result);
    }

    public static String gengeSign(Map<String, String> params) {
        SortedMap<String, String> sortedMap = new TreeMap<>(params);
        StringBuilder toSign = new StringBuilder();
        for (String key : sortedMap.keySet()) {
            String value = params.get(key);
            toSign.append(key).append("=").append(value).append("&");
        }
        String val = toSign.toString();
        val = val.substring(0,val.lastIndexOf("&"));
        System.out.println(val);
        String digest = SignatureUtil.sha1Encrypt(val);
        return digest;
    }

    public static void main(String[] args) {
        String time = Long.toString(System.currentTimeMillis() / 1000);
        System.out.println(time);
        System.out.println(geneJSSDKSign("sdfdsfds", "fdfdfd@@8"));
    }
}