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What to return if Spring MVC controller method doesn't return value?
...eturn void, then you have to mark the method with @ResponseStatus(value = HttpStatus.OK) you don't need @ResponseBody
@RequestMapping(value = "/updateSomeData" method = RequestMethod.POST)
@ResponseStatus(value = HttpStatus.OK)
public void updateDataThatDoesntRequireClientToBeNotified(...) {
....
REST HTTP status codes for failed validation or invalid duplicate
...a client error, all the examples given in this paragraph are violations of HTTP protocol, not logical errors: syntax, framing, routing. Thus, I consider that HTTP spec does not allow 400 for failed validation on application level.
– Dima Tisnek
Sep 23 '14 at 12...
How to find out what type of a Mat object is with Mat::type() in OpenCV
...on is just a handy way of getting a human readable interpretation from the combination of those two values whose bits are all stored in the same value.
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常用Linux命令详解（持续更新） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...系统，直接输入reboot即可
4. 新建用户的命令
useradd kedacom 新增一个kedacom的用户
passwd kedacom 为新增的用户设置登陆密码或为已存在用户修改密码
5. 删除用户的命令
userdel -r kedacom 删除用户
二、文件与目录的操作
1....
Right way to reverse pandas.DataFrame?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do I obtain a Query Execution Plan in SQL Server?
...ition
CREATE PROCEDURE StopCapture
@TraceID INT
AS
WITH XMLNAMESPACES ('http://schemas.microsoft.com/sqlserver/2004/07/showplan' as sql),
CTE
as (SELECT CAST(TextData AS VARCHAR(MAX)) AS TextData,
ObjectID,
ObjectName,
EventSequence,
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How can I get a list of all functions stored in the database of a particular schema in PostgreSQL?
...upply an extra "-E" (or "--echo-hidden") option and then execute the above command.
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Subscripts in plots in R
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How do you specify the Java compiler version in a pom.xml file?
.....]
</project>
See the config page for the maven compiler plugin:
http://maven.apache.org/plugins/maven-compiler-plugin/examples/set-compiler-source-and-target.html
Oh, and: don't use Java 1.3.x, current versions are Java 1.7.x or 1.8.x
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Should I avoid 'async void' event handlers?
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