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…
产生这个错误的原因是因为我的oracle数据库中有一个CLOB字段,查询出来的时候要转换为JSON而报错. Class org.apache.struts2.json.JSONWriter can not access a member of class oracle.jdbc.driver.PhysicalConnection with modifiers "public" 取出来的JSON数据是这样的 [{STATE=0, REUSER=a, ANONYMIS=否, TEXT=or…
Install Oracle Jdbc driver in your Maven local repository If you are using Oracle, you must first install your Oracle JDBC driver in your local Maven repository. Here is how to proceed: Step 1 - Download the Oracle JDBC driver Please download manuall…
错误信息: 无效的列类型:getTimestamp not implemented for class oracle.jdbc.driver.T4CNumberAccessor 错误原因:经过排查发现实体类创建的日期类型在数据库中是Number类型,就是这个原因导致的. 解决办法:将实体类中的数据类型与数据库中改成一致,运行成功,问题解决.…
症状: SpringMVC+MyBatis向数据库插入数据,主键应用ORACLE中自己设置的自增序列会发生如下错误: nested exception is Java.sql.SQLException: 无效的列类型: getLong not implemented for class oracle.jdbc.driver.T4CRowidAccessor 解决办法: 相应实体类映射文件中 <insert id="save" parameterType="io.renr…