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【异常】 [2021-09-02 08:44:41.114] [ERROR] [web-container] [Exception starting filter [Tongweb WebSocket (JSR356) Filter]]java.lang.ClassCastException: or 阅读全文
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当访问到代码 redisTemplate.opsForValue(); 时，出现以下错误： org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested excep 阅读全文
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IIS and ASP.NET: The Application PoolBy Thiru Thangarathinam Go to page: 1 2 Next In this part, we will take a look at one of the new features in IIS 6.0, named Application Pool, and demonstrate ... 阅读全文
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Server.MapPath(path) The MapPath method maps the specified relative or virtual path to the corresponding physical directory on the server.Parameters (MSDN:ms-help://MS.MSDNQTR.2003FEB.2052/iisre... 阅读全文
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IF EXISTS(Select * From sysobjects where ID=Object_ID(N'tablename') AND xType='U') print 'exists' else print 'not exists'SQL Server: 阅读全文
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报如下错误： Violation of PRIMARY KEY constraint 'PK_cs_Threads'. Cannot insert duplicate key in object 'dbo.cs_Threads'. 分析进去后，竟然发现这个表的自增字段数据库中已经达到了6144，而数据库维护的这个表的初始自增值只到6109。 解决方法很简单，利用以下SQL 语句即可搞定： DBCC... 阅读全文