yum install glibc.i686
重新安裝,javac成功
如果還有如下類系錯誤 再繼續安裝包
error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
yum install libstdc++.so.6
引用鏈接:https://blog.csdn.net/travel7623/article/details/81743108