在IDEA中编写maven的pom脚本，执行 mvn install -Dmaven.test.skip=true -X，结果却提示"JAVA_HOME"变量设置不正确，具体提示如下： Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.0:site (default-site) on project QSProject: Error during page generation: Error rendering Maven report: Unable to find javadoc command:The environment variable JAVA_HOME is not correctly set. -> 解决方案 打开idea的preference-->Maven--......
http://blog.codinglabs.org/articles/theory-of-mysql-index.html http://www.cnblogs.com/0201zcr/p/5296843.html https://github.com/iqiancheng/mysql-tutorial/blob/master/chapter3/3.5.md#存储引擎简介 https://github.com/iqiancheng/mysql-tutorial/blob/master/21-minutes-MySQL-basic-entry.md