错误信息：严重: Servlet.service() for servlet [servlet.ImportExcel] in context with path [/Poi_Test] threw exception [Servlet execution threw an exception] with root causejava.lang.ClassNotFoundException:...

出错的SQL语句中case NVL(State, 0) when 0 then '启用' else '禁用' end as sState错误：> ORA-00932: inconsistent datatypes: expected CHAR got NUMBER正确写法：case NVL(State, 0) when '0' then '启用' else '禁用' end a...

原报错SQLWhere 1=1and a.istat = 0and ListUser='admin'order by iStat desc, sDate Desc错误信息如下：ORA-00932: inconsistent datatypes: expected - got CLOB经查表结构发现该字段为clob类型SELECT table_name, col...

原SQL中语句很长不贴了，只贴出有问题的部分SQL Server中这样写没问题case IsNull(State, 0) when 0 then '启用' else '禁用' end as sState转Oracle改成这样case nvl(State, 0) when 0 then '启用' else '禁用' end as sState--改成这样报00932错误经...

POI-4.1.1，操作报错如下：Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/math3/util/ArithmeticUtils解决：需要引用 commons-math3-3.6.1.jar位置：POI-->lib目录下...

【代码】Everything根据路径和文件大小进行搜索。

// 获得总记录数（行数）int lastRowNum = sheet.getLastRowNum();int rowNum=sheet.getPhysicalNumberOfRows();// 获得总字段数（列数）int columnCount = sheet.getRow(0).getPhysicalNumberOfCells();有时候我们会发现要导入的E...

Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class

错误信息：2022-02-08 14:17:32.022 INFO 1816 --- [nio-8080-exec-3] com.alibaba.druid.pool.DruidDataSource: {dataSource-1} inited2022-02-08 14:17:32.110 ERROR 1816 --- [eate-1764881818] com.alibaba.druid.poo

错误如下：因为SVN库中的日志本身是没有进行版本管理的，为防止误操作导致原日志信息丢失，所以缺省禁止对其进行修改。如果要能在客户端进行修改，必须在repository的hook目录下新建一个pre-revprop-change.bat，内容如下：if "%4" == "svn:log" exit 0echo Property '%4' cannot be changed >&2exi