一、问题描述
服务器升级jdk版本从8到jdk17，导致easyExcel在线上环境使用异常，出现下面报错
com.alibaba.excel.exception.ExcelGenerateException: java.lang.InternalError: java.lang.reflect.InvocationTargetException
操作系统：Ubuntu 22.04.5 LTSEasyExcel版本：3.3.1
完整报错日志信息
bash
2024-12-04T11:15:23.107+08:00 ERROR 52523 --- [io-9006-exec-11] c.g.controller.ReportCenterController : annual_leave_report_download
com.alibaba.excel.exception.ExcelGenerateException: java.lang.InternalError: java.lang.reflect.InvocationTargetException
at com.alibaba.excel.write.ExcelBuilderImpl.addContent(ExcelBuilderImpl.java:65) ~[easyexcel-core-3.3.1.jar!/:na]
at com.alibaba.excel.ExcelWriter.write(ExcelWriter.java:73) ~[easyexcel-core-3.3.1.jar!/:na]
at com.alibaba.excel.ExcelWriter.write(ExcelWriter.java:50) ~[easyexcel-core-3.3.1.jar!/:na]
at com.alibaba.excel.write.builder.ExcelWriterSheetBuilder.doWrite(ExcelWriterSheetBuilder.java:62) ~[easyexcel-core-3.3.1.jar!/:na]
at com.goal.controller.ReportCenterController.download(ReportCenterController.java:305) ~[!/:0.0.1-SNAPSHOT]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:255) ~[spring-web-6.1.11.jar!/:6.1.11]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:188) ~[spring-web-6.1.11.jar!/:6.1.11]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:926) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:831) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.1.11.jar!/:6.1.11]
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[tomcat-embed-websocket-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:109) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:138) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:156) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:65) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:109) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:138) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:156) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:70) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:109) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:138) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:156) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:70) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:463) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.AbstractShiroFilter.lambda$doFilterInternal$0(AbstractShiroFilter.java:378) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:91) ~[shiro-core-2.0.1.jar!/:2.0.1]
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:84) ~[shiro-core-2.0.1.jar!/:2.0.1]
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:389) ~[shiro-core-2.0.1.jar!/:2.0.1]
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:376) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:156) ~[shiro-web-2.0.1-jakarta.jar!/:2.0.1]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.1.11.jar!/:6.1.11]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.11.jar!/:6.1.11]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.1.11.jar!/:6.1.11]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.11.jar!/:6.1.11]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.1.11.jar!/:6.1.11]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.11.jar!/:6.1.11]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:389) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:904) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.26.jar!/:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) ~[tomcat-embed-core-10.1.26.jar!/:na]
at java.base/java.lang.Thread.run(Thread.java:840) ~[na:na]
Caused by: java.lang.InternalError: java.lang.reflect.InvocationTargetException
at java.desktop/sun.font.FontManagerFactory$1.run(FontManagerFactory.java:87) ~[na:na]
at java.base/java.security.AccessController.doPrivileged(AccessController.java:318) ~[na:na]
at java.desktop/sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:75) ~[na:na]
at java.desktop/java.awt.Font.getFont2D(Font.java:526) ~[na:na]
at java.desktop/java.awt.Font.canDisplayUpTo(Font.java:2282) ~[na:na]
at java.desktop/java.awt.font.TextLayout.singleFont(TextLayout.java:469) ~[na:na]
at java.desktop/java.awt.font.TextLayout.<init>(TextLayout.java:530) ~[na:na]
at org.apache.poi.ss.util.SheetUtil.getDefaultCharWidth(SheetUtil.java:273) ~[poi-4.1.2.jar!/:4.1.2]
at org.apache.poi.xssf.streaming.AutoSizeColumnTracker.<init>(AutoSizeColumnTracker.java:117) ~[poi-ooxml-4.1.2.jar!/:4.1.2]
at org.apache.poi.xssf.streaming.SXSSFSheet.<init>(SXSSFSheet.java:82) ~[poi-ooxml-4.1.2.jar!/:4.1.2]
at org.apache.poi.xssf.streaming.SXSSFWorkbook.createAndRegisterSXSSFSheet(SXSSFWorkbook.java:684) ~[poi-ooxml-4.1.2.jar!/:4.1.2]
at org.apache.poi.xssf.streaming.SXSSFWorkbook.createSheet(SXSSFWorkbook.java:705) ~[poi-ooxml-4.1.2.jar!/:4.1.2]
at org.apache.poi.xssf.streaming.SXSSFWorkbook.createSheet(SXSSFWorkbook.java:88) ~[poi-ooxml-4.1.2.jar!/:4.1.2]
at com.alibaba.excel.util.WorkBookUtil.createSheet(WorkBookUtil.java:86) ~[easyexcel-core-3.3.1.jar!/:na]
at com.alibaba.excel.context.WriteContextImpl.createSheet(WriteContextImpl.java:223) ~[easyexcel-core-3.3.1.jar!/:na]
at com.alibaba.excel.context.WriteContextImpl.initSheet(WriteContextImpl.java:203) ~[easyexcel-core-3.3.1.jar!/:na]
at com.alibaba.excel.context.WriteContextImpl.currentSheet(WriteContextImpl.java:135) ~[easyexcel-core-3.3.1.jar!/:na]
at com.alibaba.excel.write.ExcelBuilderImpl.addContent(ExcelBuilderImpl.java:54) ~[easyexcel-core-3.3.1.jar!/:na]
... 77 common frames omitted
Caused by: java.lang.reflect.InvocationTargetException: null
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:na]
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) ~[na:na]
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480) ~[na:na]
at java.desktop/sun.font.FontManagerFactory$1.run(FontManagerFactory.java:85) ~[na:na]
... 94 common frames omitted
Caused by: java.lang.RuntimeException: Fontconfig head is null, check your fonts or fonts configuration
at java.desktop/sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1271) ~[na:na]
at java.desktop/sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:224) ~[na:na]
at java.desktop/sun.awt.FontConfiguration.init(FontConfiguration.java:106) ~[na:na]
at java.desktop/sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:706) ~[na:na]
at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:358) ~[na:na]
at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:315) ~[na:na]
at java.base/java.security.AccessController.doPrivileged(AccessController.java:318) ~[na:na]
at java.desktop/sun.font.SunFontManager.<init>(SunFontManager.java:315) ~[na:na]
at java.desktop/sun.awt.FcFontManager.<init>(FcFontManager.java:35) ~[na:na]
at java.desktop/sun.awt.X11FontManager.<init>(X11FontManager.java:56) ~[na:na]
... 100 common frames omitted二、解决问题
报错信息锁定在反射内部错误，原因是服务器上没有easyexcel引用的字体
解决方案是安装字体dejavu-sans-fonts 和 fontconfig组件。
下面是不同环境解决方法：
在 Ubuntu 中
bash
# 安装 dejavu-sans-fonts
sudo apt install ttf-dejavu
# 安装 fontconfig
sudo apt install fontconfig在centos中
bash
yum install dejavu-sans-fonts fontconfig -y在dockerfile中
bash
RUN yum install dejavu-sans-fonts fontconfig -y通过命令 fc-list 可以查看安装的字体：
bash
root@ubuntu:/# fc-list
/usr/share/fonts/truetype/dejavu/DejaVuSerif-Bold.ttf: DejaVu Serif:style=Bold
/usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf: DejaVu Sans Mono:style=Book
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-Oblique.ttf: DejaVu Sans:style=Oblique
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-BoldOblique.ttf: DejaVu Sans:style=Bold Oblique
/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-Oblique.ttf: DejaVu Sans,DejaVu Sans Condensed:style=Condensed Oblique,Oblique
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerif-BoldItalic.ttf: DejaVu Serif:style=Bold Italic
/usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-BoldItalic.ttf: DejaVu Serif,DejaVu Serif Condensed:style=Condensed Bold Italic,Bold Italic
/usr/share/fonts/truetype/dejavu/DejaVuSans-ExtraLight.ttf: DejaVu Sans,DejaVu Sans Light:style=ExtraLight
/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf: DejaVu Sans:style=Book
/usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed.ttf: DejaVu Serif,DejaVu Serif Condensed:style=Condensed,Book
/usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-Italic.ttf: DejaVu Serif,DejaVu Serif Condensed:style=Condensed Italic,Italic
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerif.ttf: DejaVu Serif:style=Book
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerifCondensed.ttf: DejaVu Serif,DejaVu Serif Condensed:style=Condensed,Book
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerifCondensed-BoldItalic.ttf: DejaVu Serif,DejaVu Serif Condensed:style=Condensed Bold Italic,Bold Italic
/usr/share/fonts/truetype/dejavu/DejaVuSerif-BoldItalic.ttf: DejaVu Serif:style=Bold Italic
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf: DejaVu Sans:style=Book
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerifCondensed-Bold.ttf: DejaVu Serif,DejaVu Serif Condensed:style=Condensed Bold,Bold
/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Oblique.ttf: DejaVu Sans Mono:style=Oblique
/usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-Bold.ttf: DejaVu Serif,DejaVu Serif Condensed:style=Condensed Bold,Bold
/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf: DejaVu Sans:style=Bold
/usr/share/fonts/truetype/dejavu/DejaVuSansMono-BoldOblique.ttf: DejaVu Sans Mono:style=Bold Oblique
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-ExtraLight.ttf: DejaVu Sans,DejaVu Sans Light:style=ExtraLight
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansMono-Bold.ttf: DejaVu Sans Mono:style=Bold
/usr/share/fonts/truetype/dejavu/DejaVuMathTeXGyre.ttf: DejaVu Math TeX Gyre:style=Regular
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansMono-BoldOblique.ttf: DejaVu Sans Mono:style=Bold Oblique
/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-BoldOblique.ttf: DejaVu Sans,DejaVu Sans Condensed:style=Condensed Bold Oblique,Bold Oblique
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansCondensed-Oblique.ttf: DejaVu Sans,DejaVu Sans Condensed:style=Condensed Oblique,Oblique
/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed.ttf: DejaVu Sans,DejaVu Sans Condensed:style=Condensed,Book
/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-Bold.ttf: DejaVu Sans,DejaVu Sans Condensed:style=Condensed Bold,Bold
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansMono-Oblique.ttf: DejaVu Sans Mono:style=Oblique
/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf: DejaVu Sans Mono:style=Bold
/usr/share/fonts/truetype/dejavu/DejaVuSans-Oblique.ttf: DejaVu Sans:style=Oblique
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerif-Bold.ttf: DejaVu Serif:style=Bold
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansCondensed-BoldOblique.ttf: DejaVu Sans,DejaVu Sans Condensed:style=Condensed Bold Oblique,Bold Oblique
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerifCondensed-Italic.ttf: DejaVu Serif,DejaVu Serif Condensed:style=Condensed Italic,Italic
/usr/share/fonts/truetype/dejavu/DejaVuSerif-Italic.ttf: DejaVu Serif:style=Italic
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSerif-Italic.ttf: DejaVu Serif:style=Italic
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-Bold.ttf: DejaVu Sans:style=Bold
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansMono.ttf: DejaVu Sans Mono:style=Book
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansCondensed-Bold.ttf: DejaVu Sans,DejaVu Sans Condensed:style=Condensed Bold,Bold
/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansCondensed.ttf: DejaVu Sans,DejaVu Sans Condensed:style=Condensed,Book
/usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf: DejaVu Serif:style=Book
/usr/share/fonts/truetype/dejavu/DejaVuSans-BoldOblique.ttf: DejaVu Sans:style=Bold Oblique
root@ubuntu:/# 到此问题成功解决！