bashrc中的JAVA_HOME

Question

我检查时收到了这个警告 mvn -version

Warning: JAVA_HOME environment variable is not set.
Apache Maven 3.0.5
Maven home: /usr/share/maven
Java version: 1.6.0_37, vendor: Sun Microsystems Inc.
Java home: /usr/lib/jvm/java-6-openjdk-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.19.0-25-generic", arch: "amd64", family: "unix"

我查了一下java

which java 
/usr/bin/java

我检查过maven

which mvn
/usr/bin/mvn

我应该在bashrc中为java和maven写什么？

Answer 1

如果您尝试运行以下命令，则似乎没有安装Java JDK（Java开发工具包）：

javac -version

可能您会得到以下信息：

The program 'javac' can be found in the following packages:
 * default-jdk
 * ecj
 * gcj-4.6-jdk
 * gcj-4.7-jdk
 * openjdk-7-jdk
 * openjdk-6-jdk
Try: sudo apt-get install <selected package>

因此，您必须运行以下命令将安装Java JDK的OpenJDK版本：

sudo apt-get install default-jdk

Answer 2

建议设置环境变量JAVA_HOME。