springboot jwt实现加密解密

import cn.hutool.core.codec.Base64;
import com.minglu.venus.common.constants.CommonConstant;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.JwtBuilder;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;

import javax.crypto.spec.SecretKeySpec;
import java.security.Key;
import java.util.Calendar;
import java.util.Date;

public class TokenBuilder {

private static Date getExpire(){<br />        Calendar calendar = Calendar._getInstance_();<br />        calendar.setTime(new Date());<br />        calendar.add(Calendar._HOUR_OF_DAY_,2);<br />        return calendar.getTime();<br />    }
_/**_<br />_     * 生成jwt_<br />_     * _**_@param _**_appKey_<br />_     * _**_@param _**_appSecret_<br />_     * _**_@param _**_companyId_<br />_     * _**_@return_**<br />**_     _**_*/_<br />_    _public static String getToken(String appKey,String appSecret,Integer companyId,String companyName){<br />        _/**签名算法*/_<br />_        _SignatureAlgorithm signatureAlgorithm = SignatureAlgorithm._HS256_;<br />        _/**密钥*/_<br />_        _byte[] keySecretBytes = Base64._decode_(CommonConstant._SECRET_);<br />        Key keys = new SecretKeySpec(keySecretBytes,signatureAlgorithm.getJcaName());<br />        JwtBuilder builder = Jwts._builder_()<br />                .claim(CommonConstant._COMPANY_ID_,String._valueOf_(companyId))<br />                .claim(CommonConstant._COMPANY_NAME_,companyName)<br />                .claim(CommonConstant._APP_KEY_,appKey)<br />                .claim(CommonConstant._APP_SECRET_,appSecret)<br />                .setIssuedAt(new Date())<br />                .setExpiration(_getExpire_())<br />                .signWith(signatureAlgorithm,keys);<br />        return builder.compact();<br />    }
_/**_<br />_     * 解析jwt获取信息_<br />_     * _**_@param _**_token_<br />_     * _**_@return_**<br />**_     _**_*/_<br />_    _public static TokenCompanyInfo parseToken(String token){<br />        Claims claims = Jwts._parser_()<br />                .setSigningKey(Base64._decode_(CommonConstant._SECRET_))<br />                .parseClaimsJws(token).getBody();<br />        TokenCompanyInfo info = new TokenCompanyInfo()<br />                .setCompanyName((String) claims.get(CommonConstant._COMPANY_NAME_))<br />                .setCompanyId(Long._valueOf_((String)claims.get(CommonConstant._COMPANY_ID_)));<br />        return info;<br />    }
_/**_<br />_     * 获取公司id_<br />_     * _**_@param _**_token_<br />_     * _**_@return_**<br />**_     _**_*/_<br />_    _public static Long getCompanyId(String token){<br />        return _parseToken_(token).getCompanyId();<br />    }
_/**_<br />_     * 获取公司名称_<br />_     * _**_@param _**_token_<br />_     * _**_@return_**<br />**_     _**_*/_<br />_    _public static String getCompanyName(String token){<br />        return _parseToken_(token).getCompanyName();<br />    }