平台截屏x11问题的解决.doc

平台截屏x11问题的解决在catalina.sh文件里增加：-Djava.awt.headless=true 具体位置：利用jsp,tomcat和jasperReport工具,开发一个报表管理web系统,在windows下测试正常,但在linux下部署却遇到了x11的问题,大概就是如下的错误代码: java.lang.InternalError: Cant connect to X11 window server using :0.0 as the value of the DISPLAY variable. 经过多方查找资料,最终发现了网友们提供的几个解决办法, 1.对于 Java 1.4以上，启动java时加上 -Djava.awt.headless=true 的参数。对于 Java 1.4 以前，下载 xvfb 或者其他的虚拟 x-window 软件，再在 Java 运行环境里的 DISPLAY 作相应改变。2.对于 Resin，具体的修改办法是，修改 httpd.sh 文件，把其中的 args= 行修改为 args=- Djava.awt.headless=true。 3.对于tomcat, 在catalina.sh中插入 -Djava.awt.headless=true 具体位置如下所示, #!/bin/sh# -# Start/Stop Script for the CATALINA Server# Environment Variable Prequisites# CATALINA_HOME May point at your Catalina build directory.# CATALINA_BASE (Optional) Base directory for resolving dynamic portions# of a Catalina installation. If not present, resolves to# the same directory that CATALINA_HOME points to.# CATALINA_OPTS (Optional) Java runtime options used when the start,# stop, or run command is executed.# CATALINA_TMPDIR (Optional) Directory path location of temporary directory# the JVM should use (java.io.tmpdir). Defaults to# $CATALINA_BASE/temp.# JAVA_HOME Must point at your Java Development Kit installation.# JAVA_OPTS (Optional) Java runtime options used when the start,# stop, or run command is executed.# JPDA_TRANSPORT (Optional) JPDA transport used when the jpda start# command is executed. The default is dt_socket.# JPDA_ADDRESS (Optional) Java runtime options used when the jpda start# command is executed. The default is 8000.# JSSE_HOME (Optional) May point at your Java Secure Sockets Extension# (JSSE) installation, whose JAR files will be added to the# system class path used to start Tomcat.# CATALINA_PID (Optional) Path of the file which should contains the pid# of catalina startup java process, when start (fork) is used# $Id: catalina.sh,v 2004/08/21 15:49:49 yoavs Exp $# - # OS specific support. $var _must_ be set to either true or false.cygwin=falseos400=falsecase uname inCYGWIN*) cygwin=true;OS400*) os400=true;esac # resolve links - $0 may be a softlinkPRG=$0 while -h $PRG ; do ls=ls -ld $PRG link=expr $ls : .*- (.*)$ if expr $link : .*/.* /dev/null; then PRG=$link else PRG=dirname $PRG/$link fidone # Get standard environment variablesPRGDIR=dirname $PRG # Only set CATALINA_HOME if not already set -z $CATALINA_HOME & CATALINA_HOME=cd $PRGDIR/. ; pwd if -r $CATALINA_HOME/bin/setenv.sh ; then . $CATALINA_HOME/bin/setenv.shfi # For Cygwin, ensure paths are in UNIX format before anything is touchedif $cygwin; then -n $JAVA_HOME & JAVA_HOME=cygpath -unix $JAVA_HOME -n $CATALINA_HOME & CATALINA_HOME=cygpath -unix $CATALINA_HOME -n $CATALINA_BASE & CATALINA_BASE=cygpath -unix $CATALINA_BASE -n $CLASSPATH & CLASSPATH=cygpath -path -unix $CLASSPATH -n $JSSE_HOME & JSSE_HOME=cygpath -absolute -unix $JSSE_HOMEfi # For OS400if $os400; then # Set job priority to standard for interactive (interactive - 6) by using # the interactive priority - 6, the helper threads that respond to requests # will be running at the same priority as interactive jobs. COMMAND=chgjob job($JOBNAME) runpty(6) system $COMMAND # Enable multi threading export QIBM_MULTI_THREADED=Yfi # Get standard Java environment variablesif -r $CATALINA_HOME/bin/setclasspath.sh ; then BASEDIR=$CATALINA_HOME . $CATALINA_HOME/bin/setclasspath.shelse echo Cannot find $CATALINA_HOME/bin/setclasspath.sh echo This file is needed to run this program exit 1fi # Add on extra jar files to CLASSPATHif -n $JSSE_HOME ; then CLASSPATH=$CLASSPATH:$JSSE_HOME/lib/jcert.jar:$JSSE_HOME/lib/jnet.jar:$JSSE_HOME/lib/jsse.jarfiCLASSPATH=$CLASSPATH:$CATALINA_HOME/bin/bootstrap.jar:$CATALINA_HOME/bin/commons-logging-api.jar if -z $CATALINA_BASE ; then CATALINA_BASE=$CATALINA_HOMEfi if -z $CATALINA_TMPDIR ; then # Define the java.io.tmpdir to use for Catalina CATALINA_TMPDIR=$CATALINA_BASE/tempfi # For Cygwin, switch paths to Windows format before running javaif $cygwin; then JAVA_HOME=cygpath -absolute -windows $JAVA_HOME CATALINA_HOME=cygpath -absolute -windows $CATALINA_HOME CATALINA_BASE=cygpath -absolute -windows $CATALINA_BASE CATALINA_TMPDIR=cygpath -absolute -windows $CATALINA_TMPDIR CLASSPATH=cygpath -path -windows $CLASSPATH -n $JSSE_HOME & JSSE_HOME=cygpath -absolute -windows $JSSE_HOME JAVA_ENDORSED_DIRS=cygpath -path -windows $JAVA_ENDORSED_DIRSfi # - Execute The Requested Command - echo Using CATALINA_BASE: $CATALINA_BASEecho Using CATALINA_HOME: $CATALINA_HOMEecho Using CATALINA_TMPDIR: $CATALINA_TMPDIRecho Using JAVA_HOME: $JAVA_HOME if $1 = jpda ; then if -z $JPDA_TRANSPORT ; then JPDA_TRANSPORT=dt_socket fi if -z $JPDA_ADDRESS ; then JPDA_ADDRESS=8000 fi if -z $JPDA_OPTS ; then JPDA_OPTS=-Xdebug -Xrunjdwp:transport=$JPDA_TRANSPORT,address=$JPDA_ADDRESS,server=y,suspend=n fi CATALINA_OPTS=$CATALINA_OPTS $JPDA_OPTS shiftfi if $1 = debug ; then if $os400; then echo Debug command not available on OS400 exit 1 else shift if $1 = -security ; then echo Using Security Manager shift exec $_RUNJDB $JAVA_OPTS $CATALINA_OPTS -Djava.endorsed.dirs=$JAVA_ENDORSED_DIRS -classpath $CLASSPATH -sourcepath $CATALINA_HOME/././jakarta-tomcat-catalina/catalina/src/share -Djava.security.manager -Djava.security.policy=$CATALINA_BASE/conf/catalina.policy -Dcatalina.base=$CATALINA_BASE -Dcatalina.home=$CATALINA_HOME -Djava.awt.headless=true -Djava.io.tmpdir=$CATALINA_TMPDIR org.apache.catalina.startup.Bootstrap $ start else exec $_RUNJDB $JAVA_OPTS $CATALINA_OPTS -Djava.endorsed.dirs=$JAVA_ENDORSED_DIRS -classpath $CLASSPATH -sourcepath $CATALINA_HOME/././jakarta-tomcat-catalina/catalina/src/share -Dcatalina.base=$CATALINA_BASE -Dcatalina.home=$CATALINA_HOME -Djava.awt.headless=true -Djava.io.tmpdir=$CATALINA_TMPDIR org.apache.catalina.startup.Bootstrap $ start fi fi elif $1 = run ; then shift if $1 = -security ; then echo Using Security Manager shift exec $_RUNJAVA $JAVA_OPTS $CATALINA_OPTS -Djava.endorsed.dirs=$JAVA_ENDORSED_DIRS -classpath $CLASSPATH -Djava.security.manager -Djava.security.policy=$CATALINA_BASE/conf/catalina.policy -Dcatalina.base=$CATALINA_BASE -Dcatalina.home=$CATALINA_HOME -Djava.awt.headless=true -Djava.io.tmpdir=$CATALINA_TMPDIR org.apache.catalina.startup.Bootstrap $ start else exec $_RUNJAVA $JAVA_OPTS $CATALINA_OPTS -Djava.endorsed.dirs=$JAVA_ENDORSED_DIRS -classpath $CLASSPATH -Dcatalina.base=$CATALINA_BASE -Dcatalina.home=$CATALINA_HOME -Djava.awt.headless=true -Djava.io.tmpdir=$CATALINA_TMPDIR org.apache.catalina.startup.Bootstrap $ start fi elif $1 = start ; then shift touch $CATALINA_BASE/logs/catalina.out if $1 = -security ; then echo Using Security Manager shift $_RUNJAVA $JAVA_OPTS $CATALINA_OPTS -Djava.endorsed.dirs=$JAVA_ENDORSED_DIRS -classpath $CLASSPATH -Djava.security.manager -Djava.security.policy=$CATALINA_BASE/conf/catalina.policy -Dcatalina.base=$CATALINA_BASE -Dcatalina.home=$CATALINA_HOME -Djava.awt.headless=true -Djava.io.tmpdir=$CATALINA_TMPDIR org.apache.catalina.startup.Bootstrap $ start $CATALINA_BASE/logs/catalina.out 2&1 & if ! -z $CATALINA_PID ; then echo $! $CATALINA_PID fi else $_RUNJAVA $JAVA_OPTS $CATALINA_OPTS -Djava.endorsed.dirs=$JAVA_ENDORSED_DIRS -classpath $CLASSPATH -Dcatalina.base=$CATALINA_BASE -Dcatalina.home=$CATALINA_HOME -Djava.awt.headless=true -Djava.io.tmpdir=$CATALINA_TMPDIR org.apache.catalina.startup.Bootstrap $ start $CATALINA_BASE/logs/catalina.out 2&1 & if ! -z $CATALINA_PID ; then echo $! $CATALINA_PID fi fi elif $1 = stop ; then shift FORCE=0 if $1 = -force ; then shift FORCE=1 fi $_RUNJAVA $JAVA_OPTS $CATALINA_OPTS -Djava.endorsed.dirs=$JAVA_ENDORSED_DIRS -classpath $CLASSPATH -Dcatalina.base=$CATALINA_BASE -Dcatalina.home=$CATALINA_HOME -Djava.awt.headless=true -Djava.io.tmpdir=$CATALINA_TMPDIR org.apache.catalina.startup.Bootstrap $ stop if $FORCE -eq 1 ; then if ! -z $CATALINA_PID ; then echo Killing: cat $CATALINA_PID kill -9 cat $CATALINA_PID fi fi elif $1 = version ; t