# 常见问题汇总 ## 1、系统环境变量缺失或JDK版本不支持 ``` java.lang.NullPointerException at sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1264) at sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:219) at sun.awt.FontConfiguration.init(FontConfiguration.java:107) at sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:774) at sun.font.SunFontManager$2.run(SunFontManager.java:431) at java.security.AccessController.doPrivileged(Native Method) at sun.font.SunFontManager.(SunFontManager.java:376) at sun.awt.FcFontManager.(FcFontManager.java:35) at sun.awt.X11FontManager.(X11FontManager.java:57) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at java.lang.Class.newInstance(Class.java:442) at sun.font.FontManagerFactory$1.run(FontManagerFactory.java:83) at java.security.AccessController.doPrivileged(Native Method) at sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:74) at java.awt.Font.getFont2D(Font.java:495) at java.awt.Font.canDisplayUpTo(Font.java:2080) at java.awt.font.TextLayout.singleFont(TextLayout.java:470) at java.awt.font.TextLayout.(TextLayout.java:531) at org.apache.poi.ss.util.SheetUtil.getDefaultCharWidth(SheetUtil.java:275) at org.apache.poi.xssf.streaming.AutoSizeColumnTracker.(AutoSizeColumnTracker.java:117) at org.apache.poi.xssf.streaming.SXSSFSheet.(SXSSFSheet.java:79) at org.apache.poi.xssf.streaming.SXSSFWorkbook.createAndRegisterSXSSFSheet(SXSSFWorkbook.java:656) at org.apache.poi.xssf.streaming.SXSSFWorkbook.createSheet(SXSSFWorkbook.java:677) at org.apache.poi.xssf.streaming.SXSSFWorkbook.createSheet(SXSSFWorkbook.java:83) at com.alibaba.excel.write.context.GenerateContextImpl.buildCurrentSheet(GenerateContextImpl.java:93) at com.alibaba.excel.write.ExcelBuilderImpl.addContent(ExcelBuilderImpl.java:53) at com.alibaba.excel.ExcelWriter.write(ExcelWriter.java:44) ``` ### 解决方法 该异常由于自己的环境变量缺少swing需要的字体配置，检查自己应用是否有配置-Djava.awt.headless=true，如果没有请加上该系统参数，可以解决问题。如果仍旧不行，在dockerfile中增加字体安装命令： ![粘贴图片.png](http://ata2-img.cn-hangzhou.img-pub.aliyun-inc.com/a857edfbc8199db7bb35b9e99f1f57d5.png) 参考： https://lark.alipay.com/aone355606/gfqllg/ulptif https://stackoverflow.com/questions/30626136/cannot-load-font-in-jre-8 http://www.jianshu.com/p/c05b5fc71bd0 ## 2、xls格式错用xlsx方式解析 ``` org.apache.poi.openxml4j.exceptions.OLE2NotOfficeXmlFileException: The supplied data appears to be in the OLE2 Format. You are calling the part of POI that deals with OOXML (Office Open XML) Documents. You need to call a different part of POI to process this data (eg HSSF instead of XSSF) at org.apache.poi.openxml4j.opc.internal.ZipHelper.verifyZipHeader(ZipHelper.java:172) at org.apache.poi.openxml4j.opc.internal.ZipHelper.openZipStream(ZipHelper.java:229) at org.apache.poi.openxml4j.opc.ZipPackage.(ZipPackage.java:97) at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:342) at com.alibaba.excel.read.v07.XlsxSaxAnalyser.(XlsxSaxAnalyser.java:46) at com.alibaba.excel.read.ExcelAnalyserImpl.getSaxAnalyser(ExcelAnalyserImpl.java:30) at com.alibaba.excel.read.ExcelAnalyserImpl.analysis(ExcelAnalyserImpl.java:51) at com.alibaba.excel.ExcelReader.read(ExcelReader.java:55) at read.v07.Read2007Xlsx.noModel(Read2007Xlsx.java:42) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at mockit.integration.junit4.internal.BlockJUnit4ClassRunnerDecorator.executeTest(BlockJUnit4ClassRunnerDecorator.java:126) at mockit.integration.junit4.internal.BlockJUnit4ClassRunnerDecorator.invokeExplosively(BlockJUnit4ClassRunnerDecorator.java:104) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) ``` ### 解决方法 该异常时由于03版的xls,文件用07版的方式做解析的报错，请检查excelType是否设置错误。或者是不是手动去修改了excel文件名后缀的xls为xlsx。 ## 3、xlsx错用xls解析 ``` org.apache.poi.poifs.filesystem.OfficeXmlFileException: The supplied data appears to be in the Office 2007+ XML. You are calling the part of POI that deals with OLE2 Office Documents. You need to call a different part of POI to process this data (eg XSSF instead of HSSF) at org.apache.poi.poifs.storage.HeaderBlock.(HeaderBlock.java:152) at org.apache.poi.poifs.storage.HeaderBlock.(HeaderBlock.java:140) at org.apache.poi.poifs.filesystem.NPOIFSFileSystem.(NPOIFSFileSystem.java:302) at org.apache.poi.poifs.filesystem.POIFSFileSystem.(POIFSFileSystem.java:87) at com.alibaba.excel.read.v03.XlsSaxAnalyser.(XlsSaxAnalyser.java:55) at com.alibaba.excel.read.ExcelAnalyserImpl.getSaxAnalyser(ExcelAnalyserImpl.java:27) at com.alibaba.excel.read.ExcelAnalyserImpl.analysis(ExcelAnalyserImpl.java:51) at com.alibaba.excel.ExcelReader.read(ExcelReader.java:55) at read.v03.XLS2003FunctionTest.testExcel2003NoModel(XLS2003FunctionTest.java:31) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at mockit.integration.junit3.internal.JUnitTestCaseDecorator.runTest(JUnitTestCaseDecorator.java:142) at mockit.integration.junit3.internal.JUnitTestCaseDecorator.originalRunBare(JUnitTestCaseDecorator.java:102) at mockit.integration.junit3.internal.JUnitTestCaseDecorator.runBare(JUnitTestCaseDecorator.java:87) ``` 原理和原因大致同上