jeecg验证码在centos报错

diygwcom2026-04-23 10:37
复制代码 
jakarta.servlet.ServletException: Handler dispatch failed: java.lang.InternalError: java.lang.reflect.InvocationTargetException
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1104)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
        at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
        at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.springframework.web.servlet.resource.ResourceUrlEncodingFilter.doFilter(ResourceUrlEncodingFilter.java:66)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at com.alibaba.druid.support.jakarta.WebStatFilter.doFilter(WebStatFilter.java:113)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.springframework.boot.actuate.web.exchanges.servlet.HttpExchangesFilter.doFilterInternal(HttpExchangesFilter.java:88)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:65)
        at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:109)
        at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:138)
        at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:156)
        at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:70)
        at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:109)
        at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:138)
        at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:156)
        at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:70)
        at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:463)
        at org.apache.shiro.web.servlet.AbstractShiroFilter.lambda$doFilterInternal$0(AbstractShiroFilter.java:378)
        at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:91)
        at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:84)
        at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:389)
        at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:376)
        at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:156)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.springframework.web.filter.ServerHttpObservationFilter.doFilterInternal(ServerHttpObservationFilter.java:110)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:116)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:398)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:903)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1769)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
        at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1189)
        at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:658)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
        at java.base/java.lang.Thread.run(Thread.java:840)
Caused by: java.lang.InternalError: java.lang.reflect.InvocationTargetException
        at java.desktop/sun.font.FontManagerFactory$1.run(FontManagerFactory.java:87)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:318)
        at java.desktop/sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:75)

这个错误非常典型，它不是代码bug，而是服务器Linux系统缺少字体库导致的。

从堆栈信息可以看出，应用在生成验证码图片时，Java的图形库 (java.awt) 无法初始化字体系统，从而抛出了 Fontconfig head is null 的异常。

问题根源

你使用的Jeecg-Boot项目中的 RandImageUtil 工具类，依赖Java的AWT库来生成验证码图片。在Linux系统（尤其是精简的服务器或Docker容器）中，默认没有安装图形界面和相关的字体配置组件。当Java尝试调用系统字体时，找不到必要的 fontconfig 配置，因此报错。

解决方案

在你的应用服务器 （如果是Docker容器，则需要在Dockerfile中执行）上，根据你的操作系统类型，安装 fontconfig 和必要的字体包，并刷新字体缓存。

1. 对于 CentOS / RedHat / Rocky Linux 系统

使用 yum 包管理器安装 fontconfig 和 dejavu 等标准字体库。

复制代码 
# 安装 fontconfig 和标准字体
sudo yum install -y fontconfig dejavu-sans-fonts

# 刷新字体缓存
sudo fc-cache -fv
对于 Ubuntu / Debian 系统

使用 apt 包管理器进行安装。

复制代码 
# 更新包列表并安装 fontconfig 和自由字体
sudo apt update
sudo apt install -y fontconfig fonts-liberation

# 刷新字体缓存
sudo fc-cache -fv
3. 验证修复

执行以下命令检查字体是否安装成功。如果能看到一长串字体列表输出，说明环境已准备就绪。

fc-list

4. 重启应用

完成安装后，必须重启你的Java应用（重启Spring Boot服务），新配置才会生效。

相关推荐
2023自学中15 小时前
imx6ull开发板 移植 ffmpeg 4.2.11 + x264 视频编码库
linux·ffmpeg·音视频·嵌入式·开发板
阿洛学长15 小时前
VMware安装虚拟机教程（超详细）
java·linux·开发语言
YOU OU15 小时前
Linux基本使用和程序部署
linux·运维·服务器
AI行业学习15 小时前
PuTTY 工具下载部署、基础配置及 SSH 远程服务器连接完整操作指南Windows 平台 【2026.6.1】
运维·windows·ssh
jiayong2315 小时前
CI/CD深度解析01-核心概念与原理
运维·git·ci/cd
fred_kang15 小时前
如何找到 Linux 服务器上某个 URL 路径对应的实际部署位置
linux·运维·服务器
用户23678298016816 小时前
Linux iptables 深度解析：从规则匹配到 NAT 转发实战
linux
CairBin16 小时前
SideSail——Ubuntu 26.04(GNOME 50)侧边栏插件，支持设备信息剪贴板和米家设备简单控制
linux·ubuntu
howard200516 小时前
3.4 Linux目录操作
linux·目录操作
Volunteer Technology17 小时前
Flink的DataStream分区操作
大数据·linux·flink
热门推荐
01GitHub 镜像站点022026 年 AI 编程工具终极横评：Cursor vs Claude Code vs Copilot vs Windsurf03Codex 下载安装指南：Windows 和 macOS 官方版下载04Codex 桌面端更新后 Chrome 插件和 Computer Use 不可用，怎么排查和修复05【AI】2026 年具身智能模型和世界模型总结06【踩坑记录 | 第一篇】微软商店无法使用时，如何手动安装 OpenAI Codex？附`.msix`文件系统错误解决方法07CC-Switch 下载、安装与使用配置指南【2026.5.29】08裂开！ChatGPT 居然开始要手机号验证，附详细解决方法09Codex 接入 DeepSeek API 完整配置文档10CC-Switch & Claude 基于 Linux 服务器安装使用指南