Intellij Idea使用什么JVM启动？ [英] What JVM does Intellij Idea use to launch with?

问题描述

我是最近决定尝试Intellij Idea的Eclipse用户。我的操作系统是Ubuntu 12。

I am an Eclipse user that recently decided to try Intellij Idea. My OS is Ubuntu 12.

使用Eclipse很容易通过在eclipse.ini中指定它来选择用于启动Eclipse的JVM（http：//wiki.eclipse .ORG /的eclipse.ini＃Specifying_the_JVM）。但我无法为Intellij Idea 12找到这样的东西。

Working with Eclipse it was easy to choose a JVM used to start Eclipse by specifying it in eclipse.ini (http://wiki.eclipse.org/Eclipse.ini#Specifying_the_JVM). But I cannot find such a thing for Intellij Idea 12.

因此，我有2个问题：

1. Intellij Idea如何确定用于启动的JVM？


2. 有没有办法覆盖这种默认行为？

谢谢。

推荐答案

从idea.sh开始运行

From the idea.sh you run

# ---------------------------------------------------------------------
# Locate a JDK installation directory which will be used to run the IDE.
# Try (in order): IDEA_JDK, JDK_HOME, JAVA_HOME, "java" in PATH.
# ---------------------------------------------------------------------
if [ -n "$IDEA_JDK" -a -x "$IDEA_JDK/bin/java" ]; then
  JDK="$IDEA_JDK"
elif [ -n "$JDK_HOME" -a -x "$JDK_HOME/bin/java" ]; then
  JDK="$JDK_HOME"
elif [ -n "$JAVA_HOME" -a -x "$JAVA_HOME/bin/java" ]; then
  JDK="$JAVA_HOME"
else
  JAVA_BIN_PATH=`which java`
  if [ -n "$JAVA_BIN_PATH" ]; then
    if [ "$OS_TYPE" = "FreeBSD" ]; then
      JAVA_LOCATION=`JAVAVM_DRYRUN=yes java | "$GREP" '^JAVA_HOME' | "$CUT" -c11-`
      if [ -x "$JAVA_LOCATION/bin/java" ]; then
        JDK="$JAVA_LOCATION"
      fi
    elif [ "$OS_TYPE" = "SunOS" ]; then
      JAVA_LOCATION="/usr/jdk/latest"
      if [ -x "$JAVA_LOCATION/bin/java" ]; then
        JDK="$JAVA_LOCATION"
      fi
    elif [ "$OS_TYPE" = "Darwin" ]; then
      JAVA_LOCATION=`/usr/libexec/java_home`
      if [ -x "$JAVA_LOCATION/bin/java" ]; then
        JDK="$JAVA_LOCATION"
      fi
    fi

    if [ -z "$JDK" -a -x "$READLINK" ]; then
      JAVA_LOCATION=`"$READLINK" -f "$JAVA_BIN_PATH"`
      case "$JAVA_LOCATION" in
        */jre/bin/java)
          JAVA_LOCATION=`echo "$JAVA_LOCATION" | xargs dirname | xargs dirname | xargs dirname` ;;
        *)
          JAVA_LOCATION=`echo "$JAVA_LOCATION" | xargs dirname | xargs dirname` ;;
      esac
      if [ -x "$JAVA_LOCATION/bin/java" ]; then
        JDK="$JAVA_LOCATION"
      fi
    fi
  fi
fi

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