🏆本文收录于《全栈Bug调优(实战版)》专栏，主要记录项目实战过程中所遇到的Bug或因后果及提供真实有效的解决方案，希望能够助你一臂之力，帮你早日登顶实现财富自由🚀；同时，欢迎大家关注&&收藏&&订阅！持续更新中，up！up！up！！

问题描述

io.jsonwebtoken.security.Keys，启动时，出现了问题，网页接口的登录有问题，验证码可以正常接受，但是就是登录不上去，有问题：java.lang.ClassNotFoundException: io.jsonwebtoken.security.Keys

这个是common模块的xml文件

<code><?xml version="1.0" encoding="UTF-8"?>code>

<project xmlns="http://maven.apache.org/POM/4.0.0"code>

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"code>

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">code>

<modelVersion>4.0.0</modelVersion>

<parent>

<groupId>com.atguigu</groupId>

<artifactId>lease</artifactId>

<version>1.0-SNAPSHOT</version>

</parent>

<artifactId>common</artifactId>

<properties>

<maven.compiler.source>17</maven.compiler.source>

<maven.compiler.target>17</maven.compiler.target>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

</properties>

<dependencies>

<!--mybatis-plus-->

<dependency>

<groupId>com.baomidou</groupId>

<artifactId>mybatis-plus-boot-starter</artifactId>

</dependency>

<!--mysql驱动-->

<dependency>

<groupId>com.mysql</groupId>

<artifactId>mysql-connector-j</artifactId>

</dependency>

<dependency>

<groupId>org.projectlombok</groupId>

<artifactId>lombok</artifactId>

</dependency>

<dependency>

<groupId>io.minio</groupId>

<artifactId>minio</artifactId>

</dependency>

<!--spring-web-->

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-web</artifactId>

</dependency>

<dependency>

<groupId>commons-codec</groupId>

<artifactId>commons-codec</artifactId>

</dependency>

<dependency>

<groupId>com.github.whvcse</groupId>

<artifactId>easy-captcha</artifactId>

</dependency>

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-data-redis</artifactId>

</dependency>

<dependency>

<groupId>io.jsonwebtoken</groupId>

<artifactId>jjwt-api</artifactId>

<version>0.11.5</version>

</dependency>

<dependency>

<groupId>io.jsonwebtoken</groupId>

<artifactId>jjwt-impl</artifactId>

<version>0.11.5</version>

<scope>runtime</scope>

</dependency>

<dependency>

<groupId>io.jsonwebtoken</groupId>

<artifactId>jjwt-jackson</artifactId>

<scope>runtime</scope>

<version>0.11.5</version>

</dependency>

<dependency>

<groupId>com.aliyun</groupId>

<artifactId>dysmsapi20170525</artifactId>

</dependency>

</dependencies>

</project>

这是common模块下的一个相关类JwtUtil.Java

<code>package com.atguigu.lease.common.utils;

import io.jsonwebtoken.Jwts;

import io.jsonwebtoken.security.Keys;

import io.jsonwebtoken.SignatureAlgorithm;

import javax.crypto.SecretKey;

import java.util.Date;

public class JwtUtil {

private static long tokenExpiration = 60 * 60 * 1000L;

private static SecretKey tokenSignKey = Keys.hmacShaKeyFor("M0PKKI6pYGVWWfDZw90a0lTpGYX1d4AQ".getBytes());

public static String createToken(Long userId, String username) {

String token = Jwts.builder().

setExpiration(new Date(System.currentTimeMillis() + tokenExpiration)).

setSubject("LOGIN_USER").

claim("userId", userId).

claim("username", username).

signWith(tokenSignKey,SignatureAlgorithm.HS256).

compact();

return token;

}

}

解决方案