大约有 40,000 项符合查询结果（耗时：0.0512秒） [XML]
Can I mask an input text in a bat file?
...
Up to XP and Server 2003, you can make use of another included tool (VBScript) - the following two scripts do the job you want.
First, getpwd.cmd:
@echo off
<nul: set /p passwd=Password:
for /f "delims=" %%i in ('cscript /nologo getpwd.vbs') do set passwd=%%i
echo.
Then,...
Create the perfect JPA entity [closed]
...r several key points: this is from long Hibernate/ persistence experience including several major applications.
Entity Class: implement Serializable?
Keys needs to implement Serializable. Stuff that's going to go in the HttpSession, or be sent over the wire by RPC/Java EE, needs to implement Seri...
What Makes a Good Unit Test? [closed]
... tests at its external API, I disagree. I want unit tests for each class, including classes that I don't expose to external callers. (However, if I feel the need to write tests for private methods, then I need to refactor.)
EDIT: There was a comment about duplication caused by "one assertion pe...
Pointers in C: when to use the ampersand and the asterisk?
...the link for the excellent video: click here.
Here is another example:
#include <stdio.h>
int main()
{
int x; /* A normal integer*/
int *p; /* A pointer to an integer ("*p" is an integer, so p
must be a pointer to an integer) */
p =...
How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw
...emplate. This will ensure that the necessary JavaScript files are properly included. This is not required for mode="simple" (non-ajax upload), but this would break look'n'feel and functionality of all other PrimeFaces components, so you don't want to miss that anyway.
When using mode="simple" (i.e. ...
Differences between hard real-time, soft real-time, and firm real-time?
...So depending on the answer you get for this question, your system could be included as one of the following categories:
Hard: No, and delayed answers are considered a system failure
This is the case when missing the dead-line will make the system unusable. For example the system controlling t...
Usage of __slots__?
...e without __slots__ declared, and nothing else, is 64 bytes. That does not include the __dict__. Thank you Python for lazy evaluation again, the __dict__ is apparently not called into existence until it is referenced, but classes without data are usually useless. When called into existence, the __di...
Should services always return DTOs, or can they also return domain models?
...bsolutely it's ok! If you have Domain Entities, DTO's and View Models then including database tables you have all the fields in the application repeated in 4 places. I've worked on large projects where Domain Entities and View Models worked just fine. The only expception to this is if the applicat...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...bd-utils-8.9.3/etc/
#vi /usr/local/drbd-utils-8.9.3/etc/drbd.conf
#include "drbd.d/global_common.conf";
#include "drbd.d/*.res";
global {
usage-count no;
}
common {
syncer { rate 1000M; }
}
resource r0 {
protocol C;
startup {
wfc-timeout 120;
degr-w...
Greedy vs. Reluctant vs. Possessive Quantifiers
...(what does this mean?), at which
This means the foo had tentatively been including when matching .*. Because that attempt failed, the regex engine tries accepting one fewer character in .*. If there had been a successful match before the .* in this example, then the engine would probably try short...