Oracle SQL Developer官网下载地址:
http://www.oracle.com/technetwork/cn/developer-tools/sql-developer/downloads/index.html
JDBC for MySQL官网下载地址:
http://www.mysql.com/downloads/connector/j/
文件名大致是 mysql-connector-java-5.1.18.zip, 下载完成后解压, 提取mysql-connector-java-5.1.18-bin.jar文件, 并且将它放到sqldeveloper\jlib目录下面, 然后启动Oracle SQL Developer, 点击菜单Tools->Preferences, 找到Database->Third Party JDBC Drivers, 点击 Add Entry..., 加载刚才的mysql-connector-java-5.1.18-bin.jar文件即可创建MySQL连接.
