微信，作为三方接口的处理逻辑。以下是个人项目处理的逻辑，欢迎大家吐槽！
这边展示项目部分代码
/**
* 微信 登录与注册
* @param request 请求
* @param code 要解析的code，或 已解析的 openid
* @param nickName 昵称
* @return
*/
public Map<String,Object> wxLogin(HttpServletRequest request,String code,String nickName){
Map<String,Object> map=new HashMap<>();
//判断是否存在请求头
String key=CookieUtil.getKeyFromTokenCookie(request);
User user=null;
if (key ==""){ //请求头无值
JsCodeDto jsCodeDto= WeChatUtil.getCode(code);//解析 code
ThrowException.illegal(jsCodeDto.getOpenid()==null,"code解析失败");
//判断openid是否存在(是否注册过)
Third third = thirdMapper.queryThirdByOpenId(jsCodeDto.getOpenid());
if (third==null){
//不存在，做注册注册操作
user=new User();
user.setOrg(0);
user.setIsValid(0);
//时间处理
Date date=new Date();
Calendar rightNow = Calendar.getInstance();
rightNow.setTime(date);
rightNow.add(Calendar.DAY_OF_YEAR,30);//日期加30天
Date addDate=rightNow.getTime();
//写入时间
user.setExpireDate(addDate);
user.setCreateDate(date);
user.setUpdateDate(date);
ThrowException.illegal(userMapper.insertSelective(user)<1,"添加用户表失败！");
//写入third
third=new Third();
third.setUserId(user.getId());
third.setNickname(nickName);
third.setOpenid(jsCodeDto.getOpenid());
third.setSessionKey(jsCodeDto.getSession_key());
int row= thirdMapper.insertSelective(third);
if (row<1){
userMapper.deleteByPrimaryKey(user.getId());
new ParamsException("添加三方表失败");
}
map.put("uuid",setRedis(user,nickName));//写入redis
map.put("openid",jsCodeDto.getOpenid());
}else{
//存在，做查询操作
user=userMapper.selectByPrimaryKey(third.getUserId());
map.put("uuid",setRedis(user,nickName));
map.put("openid",third.getOpenid());
}
}else{//有请求头，表明之前注册过
Long expire=redisUtil.getExpire(key);//判断是发存在redis
if (expire<=0){//时间已经过期
Third third = thirdMapper.queryThirdByOpenId(code);//code就是openid
user=userMapper.selectByPrimaryKey(third.getUserId());
map.put("uuid",setRedis(user,nickName));
map.put("openid",code);
}else{//存在
map.put("uuid",key);
map.put("openid",code);
}
}
return map;
}
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