这两天在修改一个Bug,
系统功能是:把外部的EXCEL中的数据导入数据层。
原系统使用方法:用Microsoft.Office.Interop.Excel.Application生成Excel对象,当生成一个新的Application实例后,系统就开了一个Excel.exe的进程,然后就在.net中就关闭不了了,导致下一个读取操作的失败。
尝试解决方法:我按网上找到的资料启用一个新的线程,再用GC回收,调试器变得很诡异,执行到new Excel.Application()之后就不知道跳到哪去执行下一步了,结果失败。
最终解决方法:在ASP.NET中对于数据的处理提供了非常灵活的OleDbDataAdapter,通过OleDbDataAdapter读取数据到DataSet中,再对数据进行过滤处理(根据原Excel模板),参考代码如下:
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参考资料:http://www.cnblogs.com/Jinglecat/archive/2006/08/15/477472.html