大约有 40,000 项符合查询结果（耗时：0.0583秒） [XML]
Correct use of flush() in JPA/Hibernate
...ils of em.flush() are implementation-dependent.
In general anyway, JPA providers like Hibernate can cache the SQL instructions they are supposed to send to the database, often until you actually commit the transaction.
For example, you call em.persist(), Hibernate remembers it has to make a database...
How to parse JSON in Python?
...ook at simplejson if you need better performance. More recent versions provide optimizations that greatly improve read and writing.
– unode
Oct 14 '11 at 19:11
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Spring MVC type conversion : PropertyEditor or Converter?
...ing reference and write a converter instead(for eg, to convert from a Long id to an entity say, as a sample).
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How do you post to an iframe?
...some clever ninja hack; although it was deprecated (and therefore won't validate) in HTML 4 Strict or XHTML 1 Strict, it's been part of HTML since 3.2, it's formally part of HTML5, and it works in just about every browser since Netscape 3.
I have verified this behaviour as working with XHTML 1 Stri...
Send response to all clients except sender
...ude sender
io.of('myNamespace').emit('message', 'gg');
// sending to individual socketid
socket.broadcast.to(socketid).emit('message', 'for your eyes only');
// list socketid
for (var socketid in io.sockets.sockets) {}
OR
Object.keys(io.sockets.sockets).forEach((socketid) => {});
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Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
...t quite figure out what's happening. I have a Card entity which contains Sides (usually 2) - and both Cards and Sides have a Stage. I'm using EF Codefirst migrations and the migrations are failing with this error:
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How can I convert an image into Base64 string using JavaScript?
...);
var dataURL;
canvas.height = this.naturalHeight;
canvas.width = this.naturalWidth;
ctx.drawImage(this, 0, 0);
dataURL = canvas.toDataURL(outputFormat);
callback(dataURL);
};
img.src = src;
if (img.complete || img.complete === undefined) {
img.src = "dat...
Send POST data using XMLHttpRequest
... Yes, but question was to write JavaScript equivalent of provided form not submit the form using JavaScript.
– uKolka
Jun 22 '13 at 17:07
3
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Git pull after forced update
I just squashed some commits with git rebase and did a git push --force (which is evil, I know).
3 Answers
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List files in local git repo?
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This Git command makes a much cleaner output and is ideal if you just want the list of files tracked by Git.
– mico
Feb 27 '16 at 12:00
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