1.Some projects cannot be imported because they already exist in the workspace 2.Some projects were hidden because they exist in the workspace directory 这种情况基本是以下错误操作造成: 1.手动删除本地磁盘下的工程目录 2.删除时,没有勾选Delete project contents on disk(cannot be undone) 以上2
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)