大约有 48,000 项符合查询结果（耗时：0.0466秒） [XML]
“PKIX path building failed” and “unable to find valid certification path to requested target”
...ermine location of cacerts files, eg.
C:\Program Files (x86)\Java\jre1.6.0_22\lib\security\cacerts.
Next import the example.cer file into cacerts in command line:
keytool -import -alias example -keystore C:\Program Files (x86)\Java\jre1.6.0_22\lib\security\cacerts -file example.cer
You will be...
MongoDB with redis
... result of that query.
So maybe we are looking up a bunch of blogposts by _id.
So maybe the keys in here are the _id of the records we have looked up before.
So lets imagine that mongoose issues a new query where it tries to find a blogpost with _id of 123, the query flows into the cache server, ...
Why do people say that Ruby is slow? [closed]
...o numbers, indexing an array. Where other languages expose hacks (Python's __add__ method, Perl's overload.pm) Ruby does pure OO in all cases, and this can hurt performance if the compiler/interpreter is not clever enough.
If I were writing a popular web application in Ruby, my focus would be on ca...
Is it safe to parse a /proc/ file?
... missing in what you see. To see that it's atomic for one read(), look at m_start() in fs/namespace.c and see it grab a semaphore that guards the list of mountpoints, which it keeps until m_stop(), which is called when the read() is done. To see what can go wrong, see this bug from last year (same ...
Prevent “overscrolling” of web page
...on id="inbox"><!-- msgs --></section>
<script>
let _startY;
const inbox = document.querySelector('#inbox');
inbox.addEventListener('touchstart', e => {
_startY = e.touches[0].pageY;
}, {passive: true});
inbox.addEventListener('touchmove', e => {
const ...
How do I add options to a DropDownList using jQuery?
...M object.
var myOptions = {
val1 : 'text1',
val2 : 'text2'
};
var _select = $('<select>');
$.each(myOptions, function(val, text) {
_select.append(
$('<option></option>').val(val).html(text)
);
});
$('#mySelect').append(_select.html());
This way we...
Reflection - get attribute name and value on property
...<string, string> GetAuthors()
{
Dictionary<string, string> _dict = new Dictionary<string, string>();
PropertyInfo[] props = typeof(Book).GetProperties();
foreach (PropertyInfo prop in props)
{
object[] attrs = prop.GetCustomAttributes(true);
foreach...
How to send a simple string between two programs using pipes?
...fo(myfifo, 0666);
/* write "Hi" to the FIFO */
fd = open(myfifo, O_WRONLY);
write(fd, "Hi", sizeof("Hi"));
close(fd);
/* remove the FIFO */
unlink(myfifo);
return 0;
}
reader.c
#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>
#include <...
Fast Linux File Count for a large number of files
...lly, the system shouldn't allow any path name that is longer than than PATH_MAX. If there are concerns, I can fix that, but it's just more code that needs to be explained to someone learning to write C. This program is intended to be an example of how to dive into subdirectories recursively.
#inclu...
Setting Windows PowerShell environment variables
...profile files: profile.ps1 should be loaded by all hosts, <host-name>_profile.ps1 just by the specified host. For PowerShell.exe (console host), this is Microsoft.PowerShell_profile.ps1.
– Richard
Apr 4 '09 at 14:44
...