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          走向一條通往JAVA的不歸路...

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            今天上午碰到這樣一個問,就是在向catalina.sh里添加信息<CATALINA_OPTS="-Dcom.onewaveinc.WebPro=/home/jakarta-tomcat-4.1.30/webapps/ROOT/webpro.xml">時,再重新啟動Tomcat就會報bin/startup.sh文件找不到的錯誤,利用bin/catalina.sh start命令也不行,經過詢問朋友才最終明白是什么原因.
          解決:
          原來我是把linux服務器上的catalina.sh文件下載到本地后做修改,然后再傳到服務器上,這時候上傳的文件沒有執行權限,所以出現了那種錯誤,這時需要用chmod修改文件的執行權限,或者直接在服務器上修改就可以了.

          感悟:知道的還是太少了,學吧,呵呵,你就學吧......

          附:
          chmod命令詳解

          指令名稱?:?chmod
          使用權限?:?所有使用者
          使用方式?:?chmod?[-cfvR]?[--help]?[--version]?mode?file...
          說明?:?Linux/Unix?的檔案調用權限分為三級?:?檔案擁有者、群組、其他。利用?chmod?可以藉以控制檔案如何被他人所調用。
          參數?:
          mode?:?權限設定字串,格式如下?:?[ugoa...][[+-=][rwxX]...][,...],其中
          u?表示該檔案的擁有者,g?表示與該檔案的擁有者屬于同一個群體(group)者,o?表示其他以外的人,a?表示這三者皆是。
          +?表示增加權限、-?表示取消權限、=?表示唯一設定權限。
          r?表示可讀取,w?表示可寫入,x?表示可執行,X?表示只有當該檔案是個子目錄或者該檔案已經被設定過為可執行。
          -c?:?若該檔案權限確實已經更改,才顯示其更改動作
          -f?:?若該檔案權限無法被更改也不要顯示錯誤訊息
          -v?:?顯示權限變更的詳細資料
          -R?:?對目前目錄下的所有檔案與子目錄進行相同的權限變更(即以遞回的方式逐個變更)
          --help?:?顯示輔助說明
          --version?:?顯示版本
          范例?:將檔案?file1.txt?設為所有人皆可讀取?:
          chmod?ugo+r?file1.txt?
          將檔案?file1.txt?設為所有人皆可讀取?:
          chmod?a+r?file1.txt?
          將檔案?file1.txt?與?file2.txt?設為該檔案擁有者,與其所屬同一個群體者可寫入,但其他以外的人則不可寫入?:
          chmod?ug+w,o-w?file1.txt?file2.txt?
          將?ex1.py?設定為只有該檔案擁有者可以執行?:
          chmod?u+x?ex1.py?
          將目前目錄下的所有檔案與子目錄皆設為任何人可讀取?:
          chmod?-R?a+r?*?
          此外chmod也可以用數字來表示權限如?chmod?777?file
          語法為:chmod?abc?file
          其中a,b,c各為一個數字,分別表示User、Group、及Other的權限。
          r=4,w=2,x=1
          若要rwx屬性則4+2+1=7;
          若要rw-屬性則4+2=6;
          若要r-x屬性則4+1=7。
          范例:
          chmod?a=rwx?file?

          chmod?777?file?
          效果相同
          chmod?ug=rwx,o=x?file?

          chmod?771?file?
          效果相同
          若用chmod?4755?filename可使此程序具有root的權限

          catalina.sh詳解:

          1 - 概述

          腳本catalina.sh用于啟動和關閉tomcat服務器,是最關鍵的腳本
          另外的腳本startup.sh和shutdown.sh都是使用不同的參數調用了該腳本
          該腳本的使用方法如下(引自該腳本本身):

            echo "Usage: catalina.sh ( commands ... )"
            echo "commands:"
            echo "  debug             Start Catalina in a debugger"
            echo "  debug -security   Debug Catalina with a security manager"
            echo "  embedded          Start Catalina in embedded mode"
            echo "  jpda start        Start Catalina under JPDA debugger"
            echo "  run               Start Catalina in the current window"
            echo "  run -security     Start in the current window with security manager"
            echo "  start             Start Catalina in a separate window"
            echo "  start -security   Start in a separate window with security manager"
            echo "  stop              Stop Catalina"
          

          2 - 腳本分析

          #!/bin/sh
          
          
          # =============================================================
          # 該腳本設置正確的環境變量和系統信息,然后啟動或者停止tomcat server
          # 具體的操作是:
          # 使用命令行參數作為args的實參,調用org.apache.catalina.startup.Bootstrap.main(String[])
          # ==============================================================
          
          # -----------------------------------------------------------------------------
          # 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
          # -----------------------------------------------------------------------------
          
          # OS specific support.  $var _must_ be set to either true or false.
          
          cygwin=false
          case "`uname`" in
          CYGWIN*) cygwin=true;;
          esac
          
          
          # PRG是被執行的腳本的名稱,可以認為PRG=="catalina.sh",也可能是某個符號鏈,指向該腳本。
          
          PRG="$0"
          
          
          # 處理了一下PRG,等循環跳出之后PRG成為 ????
          
          while [ -h "$PRG" ]; do
            ls=`ls -ld "$PRG"`
            link=`expr "$ls" : '.*-> \(.*\)$'`
            if expr "$link" : '.*/.*' > /dev/null; then
              PRG="$link"
            else
              PRG=`dirname "$PRG"`/"$link"
            fi
          done
          
          
          
          # PRGDIR是PRG的目錄路徑名稱
          
          PRGDIR=`dirname "$PRG"`
          
          
          # 執行$CATALINA_HOME/BIN/setenv.sh來設置環境變量
          # [ -r filename ] 是判斷是否文件存在且可讀
          
          CATALINA_HOME=`cd "$PRGDIR/.." ; pwd`
          if [ -r "$CATALINA_HOME"/bin/setenv.sh ]; then
            . "$CATALINA_HOME"/bin/setenv.sh
          fi
          
          
          
          # For Cygwin, 確保所有的路徑名都符合UNIX格式
          
          if $cygwin; then
            [ -n "$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 --path --unix "$JSSE_HOME"`
          fi
          
          
          # 設置用來初始化SystemClassLoader的CLASSPATH變量:通過執行腳本setclasspath.sh完成
          # 注意:腳本setclasspath.sh改變了原來的$CLASSPATH變量,而把它設為:
          # CLASSPATH=$CATALINA_HOME/bin/bootstrap.jar:$JAVA_HOME/lib/tools.jar
          # 其中bootstrap.jar是package org.apache.catalina.startup的打包文件,
          # 含有啟動方法org.apache.catalina.startup.Bootstrap.main(String[] args)
          # tools.jar含有javac編譯器,用來把jsp文件編譯成為servlet class
          
          if [ -r "$CATALINA_HOME"/bin/setclasspath.sh ]; then
            BASEDIR="$CATALINA_HOME"
            . "$CATALINA_HOME"/bin/setclasspath.sh
          else
            echo "Cannot find $CATALINA_HOME/bin/setclasspath.sh"
            echo "This file is needed to run this program"
            exit 1
          fi
          
          
          # 在CLASSPATH環境變量后面補上一些JAR文件
          # [ -n string ] 判斷字符串是否長度非0;[ -z string ] 判斷字符串是否長度為0
          # 它們可以用來判斷是否某個環境變量已經被設置
          
          if [ -n "$JSSE_HOME" ]; then
            CLASSPATH="$CLASSPATH":"$JSSE_HOME"/lib/jcert.jar:"$JSSE_HOME"/lib/jnet.jar:"$JSSE_HOME"/lib/jsse.jar
          fi
          CLASSPATH="$CLASSPATH":"$CATALINA_HOME"/bin/bootstrap.jar
          
          
          
          # 指定CATALINA_BASE變量
          # 如果CATALINA_BASE沒有值,就讓CATALINA_BASE=$CATALINA_HOME
          
          
          if [ -z "$CATALINA_BASE" ] ; then
            CATALINA_BASE="$CATALINA_HOME"
          fi
          
          
          
          # 指定CATALINA_TMPDIR變量
          # 如果CATALINA_TMPDIR沒有值,就讓CATALINA_TMPDIR=$CATALINA_BASE/temp
          
          if [ -z "$CATALINA_TMPDIR" ] ; then
            # Define the java.io.tmpdir to use for Catalina
            CATALINA_TMPDIR="$CATALINA_BASE"/temp
          fi
          
          
          # For Cygwin, 在執行java程序前把路徑名轉換成WINDOWS格式
          
          if $cygwin; then
            JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
            CATALINA_HOME=`cygpath --path --windows "$CATALINA_HOME"`
            CATALINA_BASE=`cygpath --path --windows "$CATALINA_BASE"`
            CATALINA_TMPDIR=`cygpath --path --windows "$CATALINA_TMPDIR"`
            CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
            JSSE_HOME=`cygpath --path --windows "$JSSE_HOME"`
          fi
          
          
          
          # 顯示信息,然后執行命令
          echo "Using CATALINA_BASE:   $CATALINA_BASE"
          echo "Using CATALINA_HOME:   $CATALINA_HOME"
          echo "Using CATALINA_TMPDIR: $CATALINA_TMPDIR"
          echo "Using JAVA_HOME:       $JAVA_HOME"
          
          # ......當執行catalina.sh的參數是jpda的時候......
          
          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"
            shift
          fi
          
          
          
          # ......當執行catalina.sh的參數是debug的時候......
          
          if [ "$1" = "debug" ] ; then
            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-4.0/catalina/src/share \
                -Djava.security.manager \
                -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \
                -Dcatalina.base="$CATALINA_BASE" \
                -Dcatalina.home="$CATALINA_HOME" \
                -Djava.io.tmpdir="$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-4.0/catalina/src/share \
                -Dcatalina.base="$CATALINA_BASE" \
                -Dcatalina.home="$CATALINA_HOME" \
                -Djava.io.tmpdir="$CATALINA_TMPDIR" \
                org.apache.catalina.startup.Bootstrap "$@" start
            fi
          
          
          
          # ......當執行catalina.sh的參數是embedded的時候......
          
          elif [ "$1" = "embedded" ] ; then
            shift
            echo "Embedded Classpath: $CLASSPATH"
            exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
              -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
              -Dcatalina.base="$CATALINA_BASE" \
              -Dcatalina.home="$CATALINA_HOME" \
              -Djava.io.tmpdir="$CATALINA_TMPDIR" \
              org.apache.catalina.startup.Embedded "$@"
          
          
          
          # +----------------------------------------------------+
          # |  ......當執行catalina.sh的參數是run的時候......    |
          # |  在當前窗口中啟動tomcat服務器!!!                |
          # +----------------------------------------------------+
          
          elif [ "$1" = "run" ]; then
          
            # 把參數run去掉
          
            shift
            
          
            # 如果參數是run -security,則啟動Security Manager
          
            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.io.tmpdir="$CATALINA_TMPDIR" \
                org.apache.catalina.startup.Bootstrap "$@" start
                
          
            # 如果參數是孤單的run,則在本窗口中啟動tomcat服務器
            # 在本窗口中啟動的方法是使用exec,讓當前進程fork一個新進程來啟動tomcat,當前進程是tomcat的父進程
            # 啟動tomcat的類是org.apache.catalina.startup.Bootstrap.main("start");
          
            else
              exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
                -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
                -Dcatalina.base="$CATALINA_BASE" \
                -Dcatalina.home="$CATALINA_HOME" \
                -Djava.io.tmpdir="$CATALINA_TMPDIR" \
                org.apache.catalina.startup.Bootstrap "$@" start
            fi
          
          
          # +----------------------------------------------------+
          # |  ......當執行catalina.sh的參數是start的時候......  |
          # |  在新窗口中啟動tomcat服務器!!!                  |
          # +----------------------------------------------------+
          
          elif [ "$1" = "start" ] ; then
          
            # 把參數start去掉
          
            shift
            
            # 創建一個文件(如果文件不存在的話)$CATALINA_BASE/logs/catalina.out  
          
            touch "$CATALINA_BASE"/logs/catalina.out
          
            # 如果參數是start -security,則啟動Security Manager
          
            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.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
                
          
            # 如果參數是孤單的start,那么在新窗口中啟動tomcat
          
            else
              "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
                -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
                -Dcatalina.base="$CATALINA_BASE" \
                -Dcatalina.home="$CATALINA_HOME" \
                -Djava.io.tmpdir="$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
          
          
          # +----------------------------------------------------+
          # |  ......當執行catalina.sh的參數是stop的時候......   |
          # |  關閉tomcat服務器!!!                            |
          # +----------------------------------------------------+
          
          elif [ "$1" = "stop" ] ; then
          
            # 把參數stop去掉
          
            shift
            
          
            # 關閉tomcat服務器的類是org.apache.catalina.startup.Bootstrap->main("stop");
            # 注意:java -D 是設置系統屬性
            
            exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
              -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
              -Dcatalina.base="$CATALINA_BASE" \
              -Dcatalina.home="$CATALINA_HOME" \
              -Djava.io.tmpdir="$CATALINA_TMPDIR" \
              org.apache.catalina.startup.Bootstrap "$@" stop
          
          
          
          # +----------------------------------------------------+
          # |  ......當執行catalina.sh的參數不可辨認的時候...... |
          # |  打印幫助信息,由此查看各種參數代表的意義!!!    |
          # +----------------------------------------------------+
          
          else
            echo "Usage: catalina.sh ( commands ... )"
            echo "commands:"
            echo "  debug             Start Catalina in a debugger"
            echo "  debug -security   Debug Catalina with a security manager"
            echo "  embedded          Start Catalina in embedded mode"
            echo "  jpda start        Start Catalina under JPDA debugger"
            echo "  run               Start Catalina in the current window"
            echo "  run -security     Start in the current window with security manager"
            echo "  start             Start Catalina in a separate window"
            echo "  start -security   Start in a separate window with security manager"
            echo "  stop              Stop Catalina"
            exit 1
          
          fi
          



          posted on 2007-01-30 13:43 java_蟈蟈 閱讀(8588) 評論(0)  編輯  收藏 所屬分類: LINUX

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