JWT令牌

引入maven依赖坐标

        <!--java-jwt坐标-->        <dependency><groupId>com.auth0</groupId><artifactId>java-jwt</artifactId><version>3.13.0</version></dependency>

        <!--单元测试坐标--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><version>3.1.2</version></dependency>

JwtTest

package com.lin.springboot01;import com.auth0.jwt.JWT;
import com.auth0.jwt.algorithms.Algorithm;
import org.junit.jupiter.api.Test;import java.util.Date;
import java.util.HashMap;
import java.util.Map;public class JwtTest {@Testpublic void testGen(){Map<String,Object> claims = new HashMap<>();claims.put("id",1);claims.put("username","张三");//生成jwt的代码String token = JWT.create().withClaim("user",claims)//添加载荷.withExpiresAt(new Date(System.currentTimeMillis()+1000*60/60*12))//添加过期时间.sign(Algorithm.HMAC256("lin2332"));//指定算法配置密钥System.out.println(token);}
}

密钥生成成功

校验密钥

package com.lin.springboot01;import com.auth0.jwt.JWT;
import com.auth0.jwt.JWTVerifier;
import com.auth0.jwt.algorithms.Algorithm;
import com.auth0.jwt.interfaces.Claim;
import com.auth0.jwt.interfaces.DecodedJWT;
import org.junit.jupiter.api.Test;import java.util.Date;
import java.util.HashMap;
import java.util.Map;public class JwtTest {@Testpublic void testGen(){Map<String,Object> claims = new HashMap<>();claims.put("id",1);claims.put("username","张三");//生成jwt的代码String token = JWT.create().withClaim("user",claims)//添加载荷.withExpiresAt(new Date(System.currentTimeMillis()+1000*60*60*12))//添加过期时间.sign(Algorithm.HMAC256("lin2332"));//指定算法配置密钥System.out.println(token);}@Testpublic void testParse(){//定义字符串，模拟用户传递过来的tokenString token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9" +".eyJleHAiOjE2OTk3MTA5NDcsInVzZXIiOnsiaWQiOjEsInVzZXJuYW1lIjoi5byg5LiJIn19" +".3CZM1OXRzVzRLCwfe5GrWIFcrJhy49XSjbQeIib-0SI";JWTVerifier jwtVerifier = JWT.require(Algorithm.HMAC256("lin2332")).build();DecodedJWT decodedJWT = jwtVerifier.verify(token);Map<String,Claim> claims = decodedJWT.getClaims();System.out.println(claims.get("user"));}
}

jwt解析结果：