package com.mzl.flower.service.system;
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import cn.binarywang.wx.miniapp.api.WxMaService;
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import cn.binarywang.wx.miniapp.api.WxMaUserService;
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import cn.binarywang.wx.miniapp.bean.WxMaJscode2SessionResult;
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import cn.binarywang.wx.miniapp.config.WxMaConfig;
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import com.mzl.flower.base.cache.StringCacheClient;
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import com.mzl.flower.config.WxMiniappProperties;
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import com.mzl.flower.config.exception.ValidationException;
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import com.mzl.flower.constant.Constants;
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import com.mzl.flower.service.BaseService;
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import lombok.extern.slf4j.Slf4j;
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import me.chanjar.weixin.common.error.WxErrorException;
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import me.chanjar.weixin.mp.config.WxMpConfigStorage;
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import org.apache.commons.httpclient.HttpClient;
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import org.apache.commons.httpclient.methods.GetMethod;
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import org.apache.commons.httpclient.params.HttpClientParams;
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import org.apache.commons.lang3.StringUtils;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.io.File;
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import java.io.IOException;
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import java.util.Map;
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@Service
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@Transactional
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@Slf4j
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public class WeChatService extends BaseService {
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@Autowired
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private StringCacheClient cacheClient;
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@Autowired
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private WxMaService maService;
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@Autowired
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private WxMpConfigStorage wxMpConfigStorage;
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@Autowired
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private WxMiniappProperties wxMiniappProperties;
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/**
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* 小程序获取会话信息-花店端
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* @param code
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* @return
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* @throws WxErrorException
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*/
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public WxMaJscode2SessionResult getWxMaSessionInfo(String code) throws WxErrorException {
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WxMaJscode2SessionResult result = maService.jsCode2SessionInfo(code);
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return result;
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}
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public void getWxMaUserPhone(String code) throws WxErrorException {
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WxMaUserService us = maService.getUserService();
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WxMaJscode2SessionResult session = us.getSessionInfo(code);
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//sessionKey, encryptedData, iv
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us.getPhoneNoInfo(session.getSessionKey(), "", "");
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}
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/**
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* 小程序获取openid
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* @param code
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* @return
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* @throws IOException
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*/
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public Map<String, Object> getWechatOpenId(String code,String userType) throws IOException {
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if (StringUtils.isEmpty(code)) {
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throw new ValidationException("微信code为空");
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}
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String appId = null;
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String secret = null;
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if(Constants.USER_TYPE.customer.name().equals(userType)){
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WxMiniappProperties.Miniapp customer = wxMiniappProperties.getCustomer();
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appId = customer.getAppid();
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secret = customer.getSecret();
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}else if(Constants.USER_TYPE.partner.name().equals(userType)){
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WxMiniappProperties.Miniapp customer = wxMiniappProperties.getPartner();
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appId = customer.getAppid();
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secret = customer.getSecret();
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}else if(Constants.USER_TYPE.supplier.name().equals(userType)){
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WxMiniappProperties.Miniapp customer = wxMiniappProperties.getSupplier();
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appId = customer.getAppid();
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secret = customer.getSecret();
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}else{
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throw new ValidationException("用户类型不支持");
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}
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String param = "?grant_type=authorization_code&appid=" + appId + "&secret=" + secret + "&js_code=" + code;
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String url = "https://api.weixin.qq.com/sns/jscode2session" + param;
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HttpClient http = new HttpClient();
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http.getParams().setParameter(HttpClientParams.ALLOW_CIRCULAR_REDIRECTS, true);
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GetMethod get = new GetMethod(url);
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http.executeMethod(get);
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String json = get.getResponseBodyAsString();
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Map<String, Object> map = parseObject(json, Map.class);
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Object errcode = map.get("errcode");
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if(errcode != null){
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String errmsg = (String)map.get("errmsg");
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throw new ValidationException(errmsg);
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}
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return map;
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}
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/**
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* 获取公众号accessToken
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* @return
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*/
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public String getGZHAccessToken(){
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String appId = wxMpConfigStorage.getAppId();
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String secret = wxMpConfigStorage.getSecret();
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return getAccessToken(appId, secret);
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}
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public String getAccessToken(String appId, String secret){
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if(StringUtils.isEmpty(appId) || StringUtils.isEmpty(secret)){
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return null;
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}
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String key = "WX_" + appId;
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String token = cacheClient.get(key);
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if(StringUtils.isEmpty(token)){
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Map<String, Object> map = getAccessTokenFromWeiXin(appId, secret);
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token = (String) map.get("access_token");
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Integer expiresIn = (Integer) map.get("expires_in");
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cacheClient.set(key, token, expiresIn - 100);
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}
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return token;
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}
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private Map<String, Object> getAccessTokenFromWeiXin(String appId, String secret){
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String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appId + "&secret=" + secret;
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try{
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HttpClient http = new HttpClient();
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GetMethod get = new GetMethod(url);
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http.executeMethod(get);
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String json = get.getResponseBodyAsString();
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Map<String, Object> map = parseObject(json, Map.class);
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Object errcode = map.get("errcode");
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if(errcode != null){
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String errmsg = (String)map.get("errmsg");
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log.error(errcode + ":" + errmsg);
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throw new ValidationException(errmsg);
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}
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return map;
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}catch (IOException e){
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log.error(e.getMessage(), e);
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throw new ValidationException(e.getMessage());
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}
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}
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}
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