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JwtUtil.java
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JwtUtil.java
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package util;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.JwtBuilder;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.boot.context.properties.ConfigurationProperties;
import java.util.Date;
/**
* Created by Administrator on 2018/4/11.
*/
@ConfigurationProperties("jwt.config")
public class JwtUtil {
private String key ;
private long ttl ;//一个小时
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public long getTtl() {
return ttl;
}
public void setTtl(long ttl) {
this.ttl = ttl;
}
/**
* 生成JWT
*
* @param id
* @param subject
* @return
*/
public String createJWT(String id, String subject, String roles) {
long nowMillis = System.currentTimeMillis();
Date now = new Date(nowMillis);
JwtBuilder builder = Jwts.builder()
.setId(id)
.setSubject(subject)
.setIssuedAt(now)
.signWith(SignatureAlgorithm.HS256, key)
.claim("roles", roles);
if (ttl > 0) {
builder.setExpiration( new Date( nowMillis + ttl));
}
return builder.compact();
}
/**
* 解析JWT
* @param jwtStr
* @return
*/
public Claims parseJWT(String jwtStr){
return Jwts.parser()
.setSigningKey(key)
.parseClaimsJws(jwtStr)
.getBody();
}
}