package org.ruoyi.system.util;
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import cn.hutool.http.HttpUtil;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import org.ruoyi.common.core.service.ConfigService;
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import org.ruoyi.system.domain.model.WeixinQrCode;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Component;
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import java.net.URI;
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import java.time.LocalDateTime;
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/**
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* @author https://www.wdbyte.com
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*/
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@Slf4j
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@Component
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@RequiredArgsConstructor
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public class WeixinApiUtil {
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private final ConfigService configService;
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private static String QR_CODE_URL_PREFIX = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=";
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private static String ACCESS_TOKEN = null;
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private static LocalDateTime ACCESS_TOKEN_EXPIRE_TIME = null;
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/**
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* 二维码 Ticket 过期时间
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*/
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private static int QR_CODE_TICKET_TIMEOUT = 10 * 60;
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/**
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* 获取 access token
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*
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* @return
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*/
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public synchronized String getAccessToken() {
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if (ACCESS_TOKEN != null && ACCESS_TOKEN_EXPIRE_TIME.isAfter(LocalDateTime.now())) {
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return ACCESS_TOKEN;
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}
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String api = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + getKey("appid") + "&secret="
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+ getKey("secret");
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String result = HttpUtil.get(api);
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JSONObject jsonObject = JSON.parseObject(result);
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ACCESS_TOKEN = jsonObject.getString("access_token");
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ACCESS_TOKEN_EXPIRE_TIME = LocalDateTime.now().plusSeconds(jsonObject.getLong("expires_in") - 10);
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return ACCESS_TOKEN;
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}
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/**
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* 获取二维码 Ticket
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*
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* https://developers.weixin.qq.com/doc/offiaccount/Account_Management/Generating_a_Parametric_QR_Code.html
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*
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* @return
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*/
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public WeixinQrCode getQrCode() {
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String api = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=" + getAccessToken();
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String jsonBody = String.format("{\n"
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+ " \"expire_seconds\": %d,\n"
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+ " \"action_name\": \"QR_STR_SCENE\",\n"
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+ " \"action_info\": {\n"
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+ " \"scene\": {\n"
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+ " \"scene_str\": \"%s\"\n"
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+ " }\n"
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+ " }\n"
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+ "}", QR_CODE_TICKET_TIMEOUT, KeyUtils.uuid32());
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String result = HttpUtil.post(api, jsonBody);
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log.info("get qr code params:{}", jsonBody);
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log.info("get qr code result:{}", result);
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WeixinQrCode weixinQrCode = JSON.parseObject(result, WeixinQrCode.class);
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weixinQrCode.setQrCodeUrl(QR_CODE_URL_PREFIX + URI.create(weixinQrCode.getTicket()).toASCIIString());
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return weixinQrCode;
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}
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public String getKey(String key) {
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return configService.getConfigValue("weixin", key);
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}
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}
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