JwtUtil.java
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package com.xly.erp.common.security;
import com.xly.erp.common.config.StubSecurityProperties;
import com.xly.erp.common.exception.BizException;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.JwtException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.time.Duration;
import java.util.Date;
@Component
public class JwtUtil {
private static final Duration TTL = Duration.ofHours(8);
private final SecretKey key;
public JwtUtil(String secret) {
this.key = new SecretKeySpec(secret.getBytes(StandardCharsets.UTF_8), "HmacSHA256");
}
@Autowired
public JwtUtil(StubSecurityProperties props) {
this(props.getJwtSecret());
}
public String sign(String userNo) {
Date now = new Date();
return Jwts.builder()
.subject(userNo)
.issuedAt(now)
.expiration(new Date(now.getTime() + TTL.toMillis()))
.signWith(key)
.compact();
}
public String parse(String token) {
try {
return Jwts.parser()
.verifyWith(key)
.build()
.parseSignedClaims(token)
.getPayload()
.getSubject();
} catch (JwtException | IllegalArgumentException e) {
throw new BizException(20001, "未认证或 token 已失效");
}
}
}