me.chanjar.weixin.mp.api.impl.WxMpCardServiceImpl Maven / Gradle / Ivy
package me.chanjar.weixin.mp.api.impl;
import java.util.Arrays;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonPrimitive;
import com.google.gson.reflect.TypeToken;
import me.chanjar.weixin.common.bean.WxCardApiSignature;
import me.chanjar.weixin.common.bean.result.WxError;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.common.util.RandomUtils;
import me.chanjar.weixin.common.util.crypto.SHA1;
import me.chanjar.weixin.common.util.http.SimpleGetRequestExecutor;
import me.chanjar.weixin.mp.api.WxMpCardService;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpCardResult;
import me.chanjar.weixin.mp.util.json.WxMpGsonBuilder;
/**
* Created by Binary Wang on 2016/7/27.
*/
public class WxMpCardServiceImpl implements WxMpCardService {
private final Logger log = LoggerFactory.getLogger(WxMpCardServiceImpl.class);
/**
* 全局的是否正在刷新卡券api_ticket的锁
*/
private final Object globalCardApiTicketRefreshLock = new Object();
private WxMpService wxMpService;
public WxMpCardServiceImpl(WxMpService wxMpService) {
this.wxMpService = wxMpService;
}
/**
* 获得卡券api_ticket，不强制刷新卡券api_ticket
*
* @return 卡券api_ticket
* @see #getCardApiTicket(boolean)
*/
@Override
public String getCardApiTicket() throws WxErrorException {
return getCardApiTicket(false);
}
/**
*
* 获得卡券api_ticket
* 获得时会检查卡券apiToken是否过期，如果过期了，那么就刷新一下，否则就什么都不干
*
* 详情请见：http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html#.E9.99.84.E5.BD
* .954-.E5.8D.A1.E5.88.B8.E6.89.A9.E5.B1.95.E5.AD.97.E6.AE.B5.E5.8F.8A.E7.AD.BE.E5.90.8D.E7.94
* .9F.E6.88.90.E7.AE.97.E6.B3.95
*
*
* @param forceRefresh 强制刷新
* @return 卡券api_ticket
*/
@Override
public String getCardApiTicket(boolean forceRefresh) throws WxErrorException {
if (forceRefresh) {
this.wxMpService.getWxMpConfigStorage().expireCardApiTicket();
}
if (this.wxMpService.getWxMpConfigStorage().isCardApiTicketExpired()) {
synchronized (this.globalCardApiTicketRefreshLock) {
if (this.wxMpService.getWxMpConfigStorage().isCardApiTicketExpired()) {
String url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=wx_card";
String responseContent = this.wxMpService.execute(new SimpleGetRequestExecutor(), url, null);
JsonElement tmpJsonElement = new JsonParser().parse(responseContent);
JsonObject tmpJsonObject = tmpJsonElement.getAsJsonObject();
String cardApiTicket = tmpJsonObject.get("ticket").getAsString();
int expiresInSeconds = tmpJsonObject.get("expires_in").getAsInt();
this.wxMpService.getWxMpConfigStorage().updateCardApiTicket(cardApiTicket, expiresInSeconds);
}
}
}
return this.wxMpService.getWxMpConfigStorage().getCardApiTicket();
}
/**
*
* 创建调用卡券api时所需要的签名
*
* 详情请见：http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html#.E9.99.84.E5.BD
* .954-.E5.8D.A1.E5.88.B8.E6.89.A9.E5.B1.95.E5.AD.97.E6.AE.B5.E5.8F.8A.E7.AD.BE.E5.90.8D.E7.94
* .9F.E6.88.90.E7.AE.97.E6.B3.95
*
*
* @param optionalSignParam 参与签名的参数数组。
* 可以为下列字段：app_id, card_id, card_type, code, openid, location_id
* 注意：当做wx.chooseCard调用时，必须传入app_id参与签名，否则会造成签名失败导致拉取卡券列表为空
* @return 卡券Api签名对象
*/
@Override
public WxCardApiSignature createCardApiSignature(String... optionalSignParam) throws
WxErrorException {
long timestamp = System.currentTimeMillis() / 1000;
String nonceStr = RandomUtils.getRandomStr();
String cardApiTicket = getCardApiTicket(false);
String[] signParam = Arrays.copyOf(optionalSignParam, optionalSignParam.length + 3);
signParam[optionalSignParam.length] = String.valueOf(timestamp);
signParam[optionalSignParam.length + 1] = nonceStr;
signParam[optionalSignParam.length + 2] = cardApiTicket;
String signature = SHA1.gen(signParam);
WxCardApiSignature cardApiSignature = new WxCardApiSignature();
cardApiSignature.setTimestamp(timestamp);
cardApiSignature.setNonceStr(nonceStr);
cardApiSignature.setSignature(signature);
return cardApiSignature;
}
/**
* 卡券Code解码
*
* @param encryptCode 加密Code，通过JSSDK的chooseCard接口获得
* @return 解密后的Code
*/
@Override
public String decryptCardCode(String encryptCode) throws WxErrorException {
String url = "https://api.weixin.qq.com/card/code/decrypt";
JsonObject param = new JsonObject();
param.addProperty("encrypt_code", encryptCode);
String responseContent = this.wxMpService.post(url, param.toString());
JsonElement tmpJsonElement = new JsonParser().parse(responseContent);
JsonObject tmpJsonObject = tmpJsonElement.getAsJsonObject();
JsonPrimitive jsonPrimitive = tmpJsonObject.getAsJsonPrimitive("code");
return jsonPrimitive.getAsString();
}
/**
* 卡券Code查询
*
* @param cardId 卡券ID代表一类卡券
* @param code 单张卡券的唯一标准
* @param checkConsume 是否校验code核销状态，填入true和false时的code异常状态返回数据不同
* @return WxMpCardResult对象
*/
@Override
public WxMpCardResult queryCardCode(String cardId, String code, boolean checkConsume) throws WxErrorException {
String url = "https://api.weixin.qq.com/card/code/get";
JsonObject param = new JsonObject();
param.addProperty("card_id", cardId);
param.addProperty("code", code);
param.addProperty("check_consume", checkConsume);
String responseContent = this.wxMpService.post(url, param.toString());
JsonElement tmpJsonElement = new JsonParser().parse(responseContent);
return WxMpGsonBuilder.INSTANCE.create().fromJson(tmpJsonElement,
new TypeToken() {
}.getType());
}
/**
* 卡券Code核销。核销失败会抛出异常
*
* @param code 单张卡券的唯一标准
* @return 调用返回的JSON字符串。
*
可用 com.google.gson.JsonParser#parse 等方法直接取JSON串中的errcode等信息。
*/
@Override
public String consumeCardCode(String code) throws WxErrorException {
return consumeCardCode(code, null);
}
/**
* 卡券Code核销。核销失败会抛出异常
*
* @param code 单张卡券的唯一标准
* @param cardId 当自定义Code卡券时需要传入card_id
* @return 调用返回的JSON字符串。
*
可用 com.google.gson.JsonParser#parse 等方法直接取JSON串中的errcode等信息。
*/
@Override
public String consumeCardCode(String code, String cardId) throws WxErrorException {
String url = "https://api.weixin.qq.com/card/code/consume";
JsonObject param = new JsonObject();
param.addProperty("code", code);
if (cardId != null && !"".equals(cardId)) {
param.addProperty("card_id", cardId);
}
return this.wxMpService.post(url, param.toString());
}
/**
* 卡券Mark接口。
* 开发者在帮助消费者核销卡券之前，必须帮助先将此code（卡券串码）与一个openid绑定（即mark住），
* 才能进一步调用核销接口，否则报错。
*
* @param code 卡券的code码
* @param cardId 卡券的ID
* @param openId 用券用户的openid
* @param isMark 是否要mark（占用）这个code，填写true或者false，表示占用或解除占用
*/
@Override
public void markCardCode(String code, String cardId, String openId, boolean isMark) throws
WxErrorException {
String url = "https://api.weixin.qq.com/card/code/mark";
JsonObject param = new JsonObject();
param.addProperty("code", code);
param.addProperty("card_id", cardId);
param.addProperty("openid", openId);
param.addProperty("is_mark", isMark);
String responseContent = this.wxMpService.post(url, param.toString());
JsonElement tmpJsonElement = new JsonParser().parse(responseContent);
WxMpCardResult cardResult = WxMpGsonBuilder.INSTANCE.create().fromJson(tmpJsonElement,
new TypeToken() { }.getType());
if (!cardResult.getErrorCode().equals("0")) {
this.log.warn("朋友的券mark失败：{}", cardResult.getErrorMsg());
}
}
@Override
public String getCardDetail(String cardId) throws WxErrorException {
String url = "https://api.weixin.qq.com/card/get";
JsonObject param = new JsonObject();
param.addProperty("card_id", cardId);
String responseContent = this.wxMpService.post(url, param.toString());
// 判断返回值
JsonObject json = (new JsonParser()).parse(responseContent).getAsJsonObject();
String errcode = json.get("errcode").getAsString();
if (!"0".equals(errcode)) {
String errmsg = json.get("errmsg").getAsString();
WxError error = new WxError();
error.setErrorCode(Integer.valueOf(errcode));
error.setErrorMsg(errmsg);
throw new WxErrorException(error);
}
return responseContent;
}
}
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