一、问题描述

用yum安装openJDK1.8，安装后使用yum remove卸载，提示如下

Remove        1@H_403_7@ Package(s@H_403_7@)

Installed size: 490@H_403_7@ k
Is this ok [y/N]: y Downloading Packages: Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Erasing : 1:java-1.8.0-openjdk-1.8.0.141-3.b16.el6_9.x86_64 1/1 Verifying : 1:java-1.8.0-openjdk-1.8.0.141-3.b16.el6_9.x86_64 1/@H_403_7@1@H_403_7@ 

Removed:
  java-1.8@H_403_7@.0@H_403_7@-openjdk.x86_64 1@H_403_7@:1.8@H_403_7@.0@H_403_7@.141@H_403_7@-3@H_403_7@.b16.el6_9

用命令 Java -version ，仍然会有下面的信息，说明没有卸载。

openjdk version "1.8.0_141"@H_403_7@
OpenJDK Runtime Environment (build 1.8@H_403_7@.0@H_403_7@_141-b16@H_403_7@)
OpenJDK 64@H_403_7@-Bit@H_403_7@ Server VM (build 25.141@H_403_7@-b16@H_403_7@,mixed mode)

二、解决方法

那么如何卸载呢？

1.先使用 rpm -qa | grep java命令，显示如下信息：

[root@localhost 桌面]# rpm -qa | grep java@H_403_7@
tzdata-java-2017@H_403_7@b-1.@H_403_7@el6.noarch@H_403_7@
java-1.8@H_403_7@.0@H_403_7@-openjdk-headless-1.8@H_403_7@.0@H_403_7@.141@H_403_7@-3.@H_403_7@b16.el@H_403_7@6_9.x@H_403_7@86_64

2.卸载命令rpm -e 要卸载的名称：

rpm -e@H_403_7@  java-@H_403_7@1.8@H_403_7@.0@H_403_7@-openjdk@H_403_7@-headless@H_403_7@-@H_403_7@1.8@H_403_7@.0@H_403_7@.141@H_403_7@-@H_403_7@3.@H_403_7@b16.@H_403_7@el6_9.@H_403_7@x86_64

3.这时候再次使用rpm -qa | grep java查看，jdk1.8已经卸载完成了。