2024.05.04

package com.example.demo22.utils;

import com.auth0.jwt.JWT;
import com.auth0.jwt.algorithms.Algorithm;

import java.util.Date;
import java.util.Map;

public class JwtUtils {
    private static final String KEY = "123456";
    //接收业务逻辑，生成token并返回
    public static String genToken(Map<String,Object> claims){
        return JWT.create()
                .withClaim("claims",claims)//添加载荷
                .withExpiresAt(new Date(System.currentTimeMillis()+1000*60*60))//添加过期时间
                .sign(Algorithm.HMAC256(KEY));//指定算法，配制密钥

    }
    //接受token，验证token，并返回业务服务器
    public static Map<String,Object> parseToken(String token){
        return JWT.require(Algorithm.HMAC256(KEY))
                .build()
                .verify(token)
                .getClaim("claims")
                .asMap();
    }
}

package com.example.demo22.utils;

//ThreadLocal 工具类
public class ThreadLocalUtil {
    //提供ThreadLocal对象
    private static final ThreadLocal THREAD_LOCAL = new ThreadLocal();
    //根据键获取数据
    public static <T> T get(){
        return (T) THREAD_LOCAL.get();
    }
    //存储键值对
    public static void set(Object value){
        THREAD_LOCAL.set(value);}
    //清除ThreadLocal 防止内存泄露
    public static void remove(){THREAD_LOCAL.remove();}
}