包含标签：Java 的文章
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Java – how do I know the number of worksheets in a workbook?
I use the HSSF API to read data from XLS files But there is no way to get the exact uncertainty Worksheet in workbook …… -
Java – the strange “reduce” method group is in the jdk8 batch collection operation library
Why does the new jdk8 stream class only contain the following reduce methods: T reduce(BinaryOperator<T> reducer…… -
Java – specify a package for spring jaxb2marshaller instead of “classestobebound”
I tried to use jaxb2 Marshall and spring to organize a set of Java classes I know this can be done using the following…… -
Java – how to cancel asyncresttemplate HTTP requests if they spend too much time?
Since the beginning, I have always confused how to handle interruptedexception and how to cancel HTTP requests correct…… -
Java programming layout recommendations?
I've learned to write programs from scratch, but I don't know how to design the layout and implementation of the progr…… -
Java – spring security – expiredurl does not work
I need to configure the expiration URL in my spring MVC application This is my effort, but it has no effect: @Override…… -
16 bit hexadecimal string to int signed in Java
I have a Java string representing a signed 16 - bit value in hexadecimal The string can be passed through anything fro…… -
What’s the use of Java – persistenceannotation beanpostprocessor?
According to its Javadoc, persistenceannotation beanpostprocessor seems to be responsible for injecting annotation @ p…… -
Java – how to prevent JList from selecting outside the cell boundary?
"Is there any way to prevent JList from selecting the last element when the user clicks the next element on the list?"…… -
Java – how to select all text in JTable cells during editing
I want the editor in my editable jtables to select all text in the cell at the beginning of editing I've tried a few a…… -
Java – is there a better way to keep the values of the map a collection?
I see many maps that can be saved using hibernate, such as map < string, set & entity > > a little lucky …… -
Spring – how to write mockito JUnit to exchange methods for resttemplate
How to write mockito JUnit is as follows: @Autowired RestTemplate restTemplate; ResponseEntity<?> execute(final…… -
Java – there is no console output in eclipse Juno
Straight, I've been working in eclipse Juno for some time, and my console has been working When you output to the cons…… -
Java – how to dynamically pass parameters to spring beans
I'm a novice in spring This is the bean registration code: <bean id="user" class="User_Imple"> </bean> <…… -
Does this basic Java object pool work?
Are the following basic object pools working properly? I have a more complex one based on the same idea (i.e. maintain…… -
When should I turn off Java Preparedstatement?
In the "using prepared statements" tutorial, it states that they should always be closed Suppose I have a function get…… -
Why use Java’s asynchronous filechannel?
I can understand why web applications will use multiplexing (not creating too many threads) and why programs will use …… -
Java – VM error starting wildfly (JBoss) server
I have wildfly-10.0 0. Final available path variable set I'm using Ubuntu I also have jdk1 7.0_ 79. The problem I face…… -
Why use Java’s asynchronous filechannel?
I can understand why web applications will use multiplexing (not creating too many threads) and why programs will use …… -
How can java thread priority be converted to OS thread priority?
How Java API thread priority (1-10) is converted to operating system level priority, because most operating systems do…… -
Java – JSP, get and post parameters
I need to do some small tasks with JSP; It's a very new JSP. I wonder if it's possible to get only get or only post pa…… -
Java – disable items in JList
I'm using JList as part of the wizard to display all the steps to be performed (it also allows you to click one step t…… -
Java – Eclipse – source not found
I know this problem has been asked many times, but no proposed solution has solved my problem (or I haven't implemente…… -
Confusion causes verifyerror: expect a stack diagram frame
We are using the latest JDK 7 (U45) and Proguard version 4.10 Recently, our distribution failed. After confusion, the …… -
Multithreading – busy cursor – why?
Can anyone give me a scene they think is reasonable? I think from the user's point of view, they are always a bad idea…… -
Java, how to delete integer items in ArrayList
Suppose I have such an ArrayList: ArrayList<Integer> list = new ArrayList<Integer>(); After adding operati…… -
Displays morning, afternoon, evening, and evening messages based on time in Java
What do I want to do: Display message based on Good morning (12:00 ~ 12:00) > good noon (12:00 to 4:00) > good e…… -
JavaFX – CSS Style list
I have a listview and want the following: >Odd rows of white background color > listview: when the mouse hovers …… -
Java – register a close hook in spring 2.5
I have a spring application that does not call the bean destroy method when shutdown I have seen that this is due to i…… -
Java – how does undertow do non blocking IO?
I use undertow to create a simple application public class App { public static void main(String[] args) { …… -
Multithreading – many threads or as few threads as possible?
As a side project, I'm writing a server for an old game I've played I try to make servers as loosely coupled as possib…… -
Java – how do I set the application icon for a libgdx desktop application?
I'm trying to set an application icon from a - Desktop specific class: package org.osgameseed.games.animalflip; impor……