Springboot 生成JWT

         
        
            io.jsonwebtoken
            jjwt
            0.9.1
        

package com.party.util;

import com.alibaba.fastjson.util.IOUtils;
import io.jsonwebtoken.JwtBuilder;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.core.io.ClassPathResource;

import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Date;
import java.util.Map;
import java.util.UUID;



public class JwtUtils {

    private static final Long EXPIRE= (long) 24 * 60 * 60 * 1000;

    private static final String JWT_ID= UUID.randomUUID().toString();

    //私钥
    private static final String KEY=getSecretKey();

    
    public static String createJWT(Map body){
        JwtBuilder jwtBuilder= Jwts.builder()
                .setId(JWT_ID)//JWT的唯一身份标识
                .signWith(SignatureAlgorithm.HS256,KEY)
                .setClaims(body)//放置body数据
                .setIssuedAt(new Date())//签发时间
                .setExpiration(new Date(System.currentTimeMillis()+EXPIRE));//过期时间
        return jwtBuilder.compact();
    }

    
    public static Map parseJwt(String jwt) throws Exception{
        return Jwts.parser().setSigningKey(KEY).parseClaimsJws(jwt).getBody();
    }

    private static String getSecretKey(){
        ClassPathResource classPathResource=new ClassPathResource("app_private_key.pem");
        try {
            InputStreamReader inputStreamReader = new InputStreamReader(classPathResource.getInputStream());
            return IOUtils.readAll(inputStreamReader);

        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

}

调用createJWT生成JWT，调用parseJWT解析jwt。