Tomcat指定JDK版本
方法一：1. 修改bin目录下catalina.bat文件，tomcat7.0.55是195行处。将 %JAVA_HOME% 替换为jdk目录
rem ----- Execute The Requested Command ---------------------------------------
echo Using CATALINA_BASE: "%CATALINA_BASE%"
echo Using CATALINA_HOME: "%CATALINA_HOME%"
echo Using CATALINA_TMPDIR: "%CATALINA_TMPDIR%"
if ""%1"" == ""debug"" goto use_jdk
echo Using JRE_HOME: "%JRE_HOME%"
goto java_dir_displayed
:use_jdk
echo Using JAVA_HOME: C:\Program Files\Java\jdk1.7.0_67
:java_dir_displayed
echo Using CLASSPATH: "%CLASSPATH%"
2. 修改setclasspath.bat文件，77行处。
rem Set standard command for invoking Java.
rem Note that NT requires a window name argument when using start.
rem Also note the quoting as JAVA_HOME may contain spaces.
set _RUNJAVA="C:\Program Files\Java\jdk1.7.0_67\bin\java"
set _RUNJDB="C:\Program Files\Java\jdk1.7.0_67\bin\jdb"
goto end
方法二：
在catalina.sh文件和setclasspath.sh文件开头的空白处加上如下两句(指定JDK)：
export JAVA_HOME=/usr/local/java/jdk1.7.0_67
export JRE_HOME=/usr/local/java/jdk1.7.0_67/jre
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