包含标签：Java 的文章
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Java – performance degradation after moving to Jersey 2
We are using spring 4, embedded dock 9 and Sweatshirt servers Recently we moved to Jersey 2.13 and we found that the p…… -
Java – initializes multiple variables in a for loop
I am a student trying to find out how to solve a seemingly simple problem When I try to initialize 2 variables in a fo…… -
How much CPU is needed before Erlang is faster than single threaded Java
I am currently using Java. I have read a lot about Erlang on the Internet. I have two big questions: >How much simp…… -
In Java 8, is there a bytestream class?
Java 8 provides the specialties of stream < T > double, int and long: doublestream, intstream and longstream How…… -
Java – how does spring batch manage transactions (there may be multiple data sources)?
I want to provide some information about data flow in spring batch processing, but I can't find what I'm looking for o…… -
Java – use nested enumerations in gwt-rpc
I have an enumeration with nested enumerations (I want private), but when I do, GWT tells me that nested enumerations …… -
Java – default scope of spring Services
Which is the default scope of spring 4 @ service? In order to store some information related to the currently recorded…… -
Java – client – server network getting started
I am a good programmer, but I have no Internet experience Basically, I want to enter the client server network For exa…… -
Java – why does my application run faster than the command line in IntelliJ?
We have an application that imports a large number of files by splitting data and sorting it When running JUnit test c…… -
Spring. Use Java configuration to resolve circular dependencies without @ Autowired
I have circular dependency and Java configuration Although it is easy to solve it with XML configuration, I can't solv…… -
Write data from one java servlet to another
I'm trying to write a servlet that will post an XML file (an XML formatted string) to another servlet StringBuilder sb…… -
Java – is it common to customize the dispatcher servlet in spring MVC?
I'm new to spring MVC But I'm using struts 1 Have some experience in X I wonder if dispatcherservlet is usually custom…… -
Java 7 cannot collect persistent code collected by Java 5
Does anyone know why Java 7 can't collect permanent generation applications, resulting in Java Lang. outofmemoryerror:…… -
How does the Java webstart application get the MAC address to access my web page
I am writing a Java webstart application to deploy from the website so that users can click and run my software I need…… -
Java – use HashSet to upload and deliver intent in ArrayList?
Imagine that I need to create a collection of elements in which the order can or doesn't matter All I'm going to do is…… -
Abstract Java enumeration
I write a library that should rely on enumeration, but the actual Enumeration should be defined by the user of my libr…… -
Java – how to protect jar files from decompilation?
There is already an answer to this question: > what can do to secure jar files beside obfuscation? 3 Solution Becau…… -
How to set date and time formats in Java that respect the user’s operating system settings
I run my java application on a Windows 7 machine, and my locale is set to format the date as yyyy MM DD and the time a…… -
Java – Tomcat and OSGi
I wonder if I can embed an OSGi container like karaf in the Tomcat instance According to this so question and several …… -
Java – hibernate spring MVC: object mapping configuration
Is there any way to define hibernate by scope instead of one by one cfg. Objects in XML? For example, in spring, you c…… -
Java – the executable jar ignores its own class path attribute
I use https://stackoverflow.com/a/5893391/14731 Adds an arbitrary entry to the class path attribute using the directiv…… -
Java project and Maven project (eclipse) need structure description
When I create a new Maven project in eclipse, the directory structure contains Src / main / Java and Src / main (below…… -
JavaFX – tab order in scenebuilder
How do I set the tab order (focus order) for elements, such as text fields in scenebuilder? Solution Answer: in sb on …… -
Java – JFrame background image
I'm creating a GUI. Although it's a simple one, I want a background image (2048 x 2048) to fill the whole window and a…… -
Java – chaotic example of constructor overloading
The following program output is I am Parameterized Ctor a = 0 b = 0 public class ParameterizedCtor { private in…… -
Java – statelistdrawable to switch color filters
I want to create a custom button for tabhost I've been trying to use the same image resource (PNG), but the color filt…… -
java – Arrays. Does copyof generate a shallow or deep copy?
About arrays There seems to be a lot of confusion and different opinions on whether copyof will produce deep and shall…… -
Java – completable future has been completed with exceptions
CompletableFuture. Completedfuture() returns the completedfuture that has been completed with the given value How do w…… -
Java – best used: action vs actionlistener?
Myself, I always use actionlistener as a swing event handler (such as button click), which is the most common listener…… -
Java statistics primitives, objects, methods, and heaps (memory management and best practices)
OK, so I've been developing Java for more than a year and I'm trying to understand the language and best practices So …… -
Haskell style memory in Java
I know it's heresy, but I'm trying to take this example from http://www.haskell.org/haskellwiki/Memoization Translate …… -
Java HTTP client uploads files through post
I am developing a J2ME client that must upload files to the servlet using HTTP Use Apache Commons fileUpload to overri……