大约有 8,000 项符合查询结果（耗时：0.0268秒） [XML]
org.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for
...strategy but you have to be consistent within a class hierarchy, you can't mix the strategies, at least not in JPA 1.0. JPA 2.0 makes it possible to mix strategies though, but you'd need extra annotations (and thus more complexity). So the recommendation is to pick one strategy and to stick to it in...
Max length for client ip address [duplicate]
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I would avoid mixing IPv4 and IPv6 in the same filed of a database for "a while." IPv4 is still the default standard, and will continue to be used for years to come. In legacy applications I have worked with, when it became necessary t...
Socket.IO - how do I get a list of connected sockets/clients?
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In Socket.IO 0.7 you have a clients method on the namespaces, this returns a array of all connected sockets.
API for no namespace:
var clients = io.sockets.clients();
var clients = io.sockets.clients('room'); // all users from room `...
Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
Boost.Asio的简单使用(Timer,Thread,Io_service类)2. 同步Timer本章介绍asio如何在定时器上进行阻塞等待(blocking wait).实现,我们包含必要的头文件.所有的asio类可以简单的通过include "...目录：
1. 同步Timer
2. 异步Timer
3. 回调函数的参数
4. 成...
Check if a value is in an array (C#)
... question is about arrays of strings. The mentioned routines are not to be mixed with the .Contains method of single strings.
I would like to add an extending answer referring to different C# versions and because of two reasons:
The accepted answer requires Linq which is perfectly idiomatic C# whil...
How can I find non-ASCII characters in MySQL?
... that don't have any ascii characters at all, so it will miss those with a mix of ascii and non-ascii characters. The answer below from zende checks for one or more non-ascii characters. This helped me for the most part SELECT * FROM tbl WHERE colname NOT REGEXP '^[A-Za-z0-9\.,@&\(\) \-]*$';
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Reverting to a specific commit based on commit id with Git? [duplicate]
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@prosseek the default is actually mixed. --mixed Resets the index but not the working tree (i.e., the changed files are preserved but not marked for commit) and reports what has not been updated. This is the default action. See kernel.org/pub/software/scm/g...
What new capabilities do user-defined literals add to C++?
...et you down.
The date example?
Your error, it seems to me, is that you are mixing operators:
1974/01/06AD
^ ^ ^
This can't be avoided, because / being an operator, the compiler must interpret it. And, AFAIK, it is a good thing.
To find a solution for your problem, I would write the literal in...
Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...并发实用程序，这个包应该用于 Java 开发工具箱 1.5 发行版。
结束语
线程池是组织服务器应用程序的有用工具。它在概念上十分简单，但在实现和使用一个池时，却需要注意几个问题，例如死锁、资源不足和wait() 及 notify(...
Patterns for handling batch operations in REST web services?
...do is basically grouping different requests in one Content-Type: multipart/mixed request, with each individual complete request separated by some defined delimiter. Headers and query parameter of the batch request are inherited to the individual requests (i.e. Authorization: Bearer some_token) unles...