JwtUtils.java
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package org.nafmii.common.utils;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.nafmii.common.vo.AppUser;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
public class JwtUtils {
public static final String TOKEN_HEADER = "Authorization";
public static final String TOKEN_PREFIX = "Bearer ";
public static final String SUBJECT = "congge";
public static final long EXPIRITION = 1000 * 24 * 60 * 60 * 7;
public static final String APPSECRET_KEY = "congge_secret";
private static final String ROLE_CLAIMS = "rol";
public static String generateJsonWebToken(AppUser user) {
if (user.getId() == null || user.getUserName() == null ) {
return null;
}
Map<String,Object> map = new HashMap<>();
map.put(ROLE_CLAIMS, "rol");
String token = Jwts
.builder()
.setSubject(SUBJECT)
.setClaims(map)
.claim("id", user.getId())
.claim("name", user.getUserName())
.setIssuedAt(new Date())
.setExpiration(new Date(System.currentTimeMillis() + EXPIRITION))
.signWith(SignatureAlgorithm.HS256, APPSECRET_KEY).compact();
return token;
}
/**
* 生成token
* @param username
* @param role
* @return
*/
public static String createToken(String username,String role) {
Map<String,Object> map = new HashMap<>();
map.put(ROLE_CLAIMS, role);
String token = Jwts
.builder()
.setSubject(username)
.setClaims(map)
.claim("username",username)
.setIssuedAt(new Date())
.setExpiration(new Date(System.currentTimeMillis() + EXPIRITION))
.signWith(SignatureAlgorithm.HS256, APPSECRET_KEY).compact();
return token;
}
public static Claims checkJWT(String token) {
try {
final Claims claims = Jwts.parser().setSigningKey(APPSECRET_KEY).parseClaimsJws(token).getBody();
return claims;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 获取用户名
* @param token
* @return
*/
public static String getUsername(String token){
Claims claims = Jwts.parser().setSigningKey(APPSECRET_KEY).parseClaimsJws(token).getBody();
return claims.get("username").toString();
}
/**
* 获取用户角色
* @param token
* @return
*/
public static String getUserRole(String token){
Claims claims = Jwts.parser().setSigningKey(APPSECRET_KEY).parseClaimsJws(token).getBody();
return claims.get("rol").toString();
}
/**
* 是否过期
* @param token
* @return
*/
public static boolean isExpiration(String token){
Claims claims = Jwts.parser().setSigningKey(APPSECRET_KEY).parseClaimsJws(token).getBody();
return claims.getExpiration().before(new Date());
}
public static void main(String[] args) {
String name = "acong";
String role = "rol";
String token = createToken(name,role);
System.out.println(token);
Claims claims = checkJWT(token);
System.out.println(claims.get("username"));
System.out.println(getUsername(token));
System.out.println(getUserRole(token));
System.out.println(isExpiration(token));
}
/**
* eyJhbGciOiJIUzI1NiJ9.
* eyJzdWIiOiJjb25nZ2UiLCJpZCI6IjExMDExIiwibmFtZSI6Im51b3dlaXNpa2kiLCJpbWciOiJ3d3cudW9rby5jb20vMS5wbmciLCJpYXQiOjE1NTQ5OTI1NzksImV4cCI6MTU1NTU5NzM3OX0.
* 6DJ9En-UBcTiMRldZeevJq3e1NxJgOWryUyim4_-tEE
*
* @param args
*/
/*public static void main(String[] args) {
Users user = new Users();
user.setId("11011");
user.setUserName("nuoweisiki");
user.setFaceImage("www.uoko.com/1.png");
String token = generateJsonWebToken(user);
System.out.println(token);
Claims claims = checkJWT(token);
if (claims != null) {
String id = claims.get("id").toString();
String name = claims.get("name").toString();
String img = claims.get("img").toString();
String rol = claims.get("rol").toString();
System.out.println("id:" + id);
System.out.println("name:" + name);
System.out.println("img:" + img);
System.out.println("rol:" + rol);
}
}*/
}