情缘黄金少

请问一下最后是怎么解决的

恩恩，原来是下错kafka了，感谢无名大神的细心指导啊。真心感谢

echo $JAVA_HOME 无值，还未生效。

/etc/profile

# System wide environment and startup programs, for login setup
# Functions and aliases go in /etc/bashrc

# It's NOT a good idea to change this file unless you know what you
# are doing. It's much better to create a custom.sh shell script in
# /etc/profile.d/ to make custom changes to your environment, as this
# will prevent the need for merging in future updates.


export JAVA_HOME=/usr/java/jdk1.7.0_79
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$CLASSPATH

pathmung e() {

这是环境变量

[root@localhost Desktop]# echo $JAVA_HOME

[root@localhost Desktop]# java -version
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)
[root@localhost Desktop]#

我echo $JAVA_HOME的时候什么也不显示，版本显示64位的