java - Linux 上的 RubyMine

Question

我是 ubuntu 的新手，遇到了一个问题。我无法启动 RubyMine 4:

kvet@Kvet-Notebook:~/RubyMine-4.0.3/bin$ java -version
java version "1.7.0_03"
OpenJDK Runtime Environment (IcedTea7 2.1.1pre) (7~u3-2.1.1~pre1-1ubuntu2)
OpenJDK 64-Bit Server VM (build 22.0-b10, mixed mode)
kvet@Kvet-Notebook:~/RubyMine-4.0.3/bin$ ./rubymine.sh
OpenJDK Runtime Environment (IcedTea7 2.1.1pre) (7~u3-2.1.1~pre1-1ubuntu2)
OpenJDK 64-Bit Server VM (build 22.0-b10, mixed mode)
OpenJDK 64-Bit Server VM (build 22.0-b10, mixed mode)
WARNING: You are launching the IDE using OpenJDK Java runtime.

         THIS IS STRICTLY UNSUPPORTED DUE TO KNOWN PERFORMANCE AND GRAPHICS PROBLEMS!

NOTE:    If you have both Oracle (Sun) JDK and OpenJDK installed
         please validate either RUBYMINE_JDK, JDK_HOME, or JAVA_HOME environment variable points to valid Oracle (Sun) JDK installation.
         See http://ow.ly/6TuKQ for more info on switching default JDK.

Press Enter to continue.

Error: Could not find or load main class com.intellij.idea.Main

我尝试安装 openjdk6 并出现同样的错误。我不知道我必须做什么。

Answer 1

我最近自己也有这个 ([ ERROR: cannot start RubyMine. No JDK found. JDK Version? + desktop link )。

Answer: Install java and check your path:

在以下位置下载 oracle7 jdk:
http://www.oracle.com/technetwork/java/javase/downloads/java-se-jdk-7-download-432154.html

按照以下说明操作:
http://www.webupd8.org/2011/09/how-to-install-oracle-java-7-jdk-in.html例如

下载 java 后(上图):将下载的 Oracle Java JDK 存档解压缩到您的主文件夹中，并将新创建的文件夹重命名为“java-7-oracle”。

sudo mv its_name java-7-oracle

安装它:

cd
sudo mkdir -p  /usr/lib/jvm/ #just in case
sudo mv java-7-oracle/ /usr/lib/jvm/
sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install update-java
sudo update-java

检查一下:

java -version
javac -version