ubuntu 12.04 下MyEclipse安装时错误

Java Runtime Environment (JRE) or Java Development Kit (JDK)

must be available in order to run Pulse-one-32. No Java virtual machine

was found after searching the following locations:

/tmp/oneinstall_2339/myeclipse-10.7.1-offline-installer-linux/installer/jre/bin/java

java in your current PATH

我使用的是JDK1.7，当时java -version也能正确的输出

java version "1.7.0_21"

Java(TM) SE Runtime Environment (build 1.7.0_21-b11)

Java HotSpot(TM) Server VM (build 23.21-b01, mixed mode)

在终端中

sudo update-alternatives --install /usr/bin/java java   /usr/local/development/jdk1.7.0_21/bin/java 300

sudo update-alternatives --install /usr/bin/javac javac  /usr/local/development/jdk1.7.0_21/bin/javac 300

sudo update-alternatives --install /usr/bin/jar jar   /usr/local/development/jdk1.7.0_21/bin/jar 300

sudo update-alternatives --install /usr/bin/javah javah /usr/local/development/jdk1.7.0_21/bin/javah 300

sudo update-alternatives --install /usr/bin/javap javap /usr/local/development/jdk1.7.0_21/bin/avap 300

然后执行以下代码选择我们安装的JDK版本：

sudo update-alternatives --config java

在安装MyEclipse时就没什么问题了

记下来以免忘了～～