package com.stylefeng.guns.modular.system.util;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.stereotype.Component;
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import org.springframework.web.client.RestTemplate;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 微信工具类
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*/
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@Component
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public class WeChatUtil {
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@Value("${wx.appletsAppid}")
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private String wxAppletsAppid;
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@Value("${wx.appletsAppSecret}")
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private String wxAppletsAppSecret;
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@Autowired
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private RestTemplate restTemplate;
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/**
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* 小程序使用jscode获取openid
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* @param jscode
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* @return
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*/
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public Map<String, String> code2Session(String jscode){
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String url = "https://api.weixin.qq.com/sns/jscode2session?appid=" + wxAppletsAppid + "&secret=" + wxAppletsAppSecret
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+ "&js_code=" + jscode + "&grant_type=authorization_code";
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String forObject = restTemplate.getForObject(url, String.class);
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JSONObject jsonObject = JSON.parseObject(forObject);
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int errcode = jsonObject.getIntValue("errcode");
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Map<String, String> map = new HashMap<>();
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if(errcode == 0){//成功
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map.put("openid", jsonObject.getString("openid"));
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map.put("sessionKey", jsonObject.getString("session_key"));
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map.put("unionid", jsonObject.getString("unionid"));
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return map;
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}
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if(errcode == -1){//系统繁忙，此时请开发者稍候再试
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map.put("msg", jsonObject.getString("errmsg"));
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return map;
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}
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if(errcode == 40029){//code 无效
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map.put("msg", jsonObject.getString("errmsg"));
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return map;
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}
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if(errcode == 45011){//频率限制，每个用户每分钟100次
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map.put("msg", jsonObject.getString("errmsg"));
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return map;
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}
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return null;
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}
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}
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