package com.yuanchu.tms.utils;
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import com.auth0.jwt.JWT;
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import com.auth0.jwt.JWTVerifier;
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import com.auth0.jwt.algorithms.Algorithm;
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import com.auth0.jwt.interfaces.DecodedJWT;
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import org.springframework.stereotype.Component;
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import java.util.Calendar;
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import java.util.HashMap;
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import java.util.Map;
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@Component
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public class Jwt {
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private final String SECRET = "value";
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public String createJwt(String name,int id, int time) {
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HashMap<String, Object> headers = new HashMap<>();
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Calendar expires = Calendar.getInstance();
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expires.add(Calendar.MINUTE, time);
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String jwtToken = JWT.create()
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// 第一部分Header
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.withHeader(headers)
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// 第二部分Payload
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.withClaim("name", name)
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.withClaim("id", id)
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.withExpiresAt(expires.getTime())
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// 第三部分Signature
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.sign(Algorithm.HMAC256(SECRET));
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return jwtToken;
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}
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public Map<String, String> readJWT(String token) {
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Map<String, String> map = new HashMap<>();
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map.put("state", "0");
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map.put("info", "正常");
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map.put("data", null);
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// 创建一个验证的对象
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JWTVerifier jwtVerifier = JWT.require(Algorithm.HMAC256(SECRET)).build();
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DecodedJWT verify;
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try {
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verify = jwtVerifier.verify(token);
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Map<String, String> maps = new HashMap<>();
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maps.put("id",verify.getClaim("id").toString());
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maps.put("name",verify.getClaim("name").toString());
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map.put("data", JackSonUtil.marshal(maps));
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} catch (Exception e) {
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String info = ("" + e).contains("expired") ? "已过期" : "无效签名";
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String state = ("" + e).contains("expired") ? "1" : "2";
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map.put("state", state);
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map.put("info", info);
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}
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return map;
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}
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}
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