Linux下Tomcat中POI导出异常：java.lang.NoClassDefFoundError: sun/awt/X11GraphicsEnvironment

POI导出Excel出现java.lang.NoClassDefFoundError: sun/awt/X11GraphicsEnvironment异常

问题描述：

       项目在window中使用POI导出Excel没有任何问题，而到linux中使用POI导出Excel出现：java.lang.NoClassDefFoundError: sun/awt/X11GraphicsEnvironment异常信息

异常信息如下：

Caused by: java.lang.NoClassDefFoundError: sun/awt/X11GraphicsEnvironment
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:68)
at sun.font.FontManager.initSGEnv(FontManager.java:1094)
at sun.font.FontManager.findFont2D(FontManager.java:1756)
at java.awt.Font.getFont2D(Font.java:452)
at java.awt.Font.canDisplay(Font.java:1835)
at java.awt.Font.canDisplayUpTo(Font.java:1901)
at java.awt.font.TextLayout.singleFont(TextLayout.java:451)
at java.awt.font.TextLayout.(TextLayout.java:509)
at com.ai.mapp.service.table.utils.ReportExportExcel.exportExcel(ReportExportExcel.java:70)
at com.ai.mapp.action.business.ReportDataAction.expReportExcel(ReportDataAction.java:362)
... 56 more

解决方案：

       在tomcat配置文件catalina.sh文件中添加 CATALINA_OPTS="-Djava.awt.headless=true"

catalina.sh添加之后如下：

#   LOGGING_CONFIG  (Optional) Override Tomcat's logging config file
#                   Example (all one line)
#                   LOGGING_CONFIG="-Djava.util.logging.config.file=$CATALINA_BASE/conf/logging.properties"
#
#   LOGGING_MANAGER (Optional) Override Tomcat's logging manager
#                   Example (all one line)
#                   LOGGING_MANAGER="-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager"
#
# $Id: catalina.sh 1146097 2011-07-13 15:25:05Z markt $
# -----------------------------------------------------------------------------

JAVA_OPTS="-Xms512m -Xmx19500m"
CATALINA_OPTS="-Djava.awt.headless=true"
# OS specific support.  $var _must_ be set to either true or false.
cygwin=false
os400=false
darwin=false
case "`uname`" in
CYGWIN*) cygwin=true;;
OS400*) os400=true;;
Darwin*) darwin=true;;
esac

# resolve links - $0 may be a softlink
PRG="$0"

while [ -h "$PRG" ]; do