application.properties
jwt.expire_time=3600000
jwt.secret=MDk4ZjZiY2Q0NjIxZDM3M2NhZGU0ZTgzMjY34DFDSSSd =
JwtUtil
package com.osp.ucenter.jwt; import java.util.Date;
import java.util.HashMap;
import java.util.Map; import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration; import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm; /**
* jwt工具类
*
* @author zhangmingcheng
*/
@Configuration
public class JwtUtil { private static long EXPIRATION_TIME; // 1 hour private static String SECRET;// 秘钥 @Value("${jwt.expire_time}")
public void setEXPIRATION_TIME(long eXPIRATION_TIME) {
EXPIRATION_TIME = eXPIRATION_TIME;
} @Value("${jwt.secret}")
public void setSECRET(String sECRET) {
SECRET = sECRET;
} /**
* 生成jwtToken
*
* @param username
* @return
*/
public static String generateToken(String username) {
HashMap<String, Object> map = new HashMap<>();
// you can put any data in the map
map.put("username", username);
String jwt = Jwts.builder().setClaims(map).setExpiration(new Date(System.currentTimeMillis() + EXPIRATION_TIME))
.signWith(SignatureAlgorithm.HS512, SECRET).compact();
return jwt;
} /**
* 校验jwtToken
*
* @param token
* @return
*/
public static String validateToken(String token) {
if (token != null) {
Map<String, Object> body = Jwts.parser().setSigningKey(SECRET).parseClaimsJws(token).getBody();
String username = (String) (body.get("username"));
if (username == null || username.isEmpty()) {
throw new TokenValidationException("Wrong token without username");
} else {
return username;
}
} else {
throw new TokenValidationException("Missing token");
}
} public static long getEXPIRATION_TIME(){
return JwtUtil.EXPIRATION_TIME;
} static class TokenValidationException extends RuntimeException {
/**
*
*/
private static final long serialVersionUID = -7946690694369283250L; public TokenValidationException(String msg) {
super(msg);
}
}
}
服务端登录验证成功生成jwtToken
String accessToken = JwtUtil.generateToken(ucUser.getUserName());
客户端发送请求，过滤器拦截请求验证jwtToken
JwtUtil.validateToken(osptoken);