Linux调用画图

谁借莪１个温暖的怀抱￠ 2024-02-18 21:22 8阅读 0赞

服务器ip地址变了后，上传数据时涉及到画图部分，系统抛出以下异常：

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)

头一回遇到这样的异常，有点蒙。之前都是好好的，ip地址更换应该对它没有影响啊，各种百度之后，才有点眉目。tomcat调用X-Server画图服务时，该项服务没有开启，所以才有以上异常，知道原因后，找到tomcat安装目录的bin文件夹，编辑catalina.sh文件，添加以下代码：CATALINA\_OPTS=”-Djava.awt.headless=true”，重启tomcat，问题得到解决。具体添加位置如下：

#   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 2018-07-02 17:25:05Z 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