Java
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Java – in a single web Adding multiple servlets to XML
I tried on a web Two servlet classes run in XML, but it doesn't work. Each servlet class works independently web. In X…… -
Java – spring MVC controller and exception handling
I'd like to ask a best practice question about spring MVC controller Please check the following code: @ h_ 403_ 2@@Aut…… -
Asynchronous e-mail processing in Java Web Applications
When a user registers for a new account, I want to implement asynchronous email sending in my web application This mea…… -
Java – Maven 2 does not run JUnit 4 test
I'm having trouble running junit4 tests In https://stackoverflow.com/questions/2021771?sort=newest#sort -The same prob…… -
Java – monitor changes to collections
Suppose you have the following Java beans: public class MyBean { private List<String> names = new ArrayList&…… -
Why – in Java 1.8 – use functions instead of functions?
The order seems strange because in regular Java, the return type is always specified first For example: public static …… -
Use java to convert SOAP message format to socket message format, and vice versa
I am currently using java to study the conversion from SOAP message format to socket message format, and vice versa I …… -
Java – perform default tasks in ant in case of failure
I am currently using ant to build my java project on a Windows XP machine thank you Solution Google and found this It …… -
Java – is there any way to listen to the method execution of another class?
Can I listen to the method execution of an instance or all instances of a class without modifying the code? someInstan…… -
The Java – @ aroundinvoke interceptor is called twice on the @ WebService class
abstract Call the @ aroundinvoke interceptor twice on the @ WebService class. If the intercepted method is called from…… -
Java – espresso 2.0 – methods using @ test annotation in classes that extend junit3 testcase
When I use the new activityinstrumentationtestcase2 class shipped with espresso 2.0, I get a strange warning method. I…… -
Java: null in constructor
Excuse me, this question is a bit theoretical, but I want to understand it Why do I pass null parameters to constructo…… -
Java discards half of UDP packets
I have a simple client / server setup Server in C, the client of the query server is Java My problem is that when I se…… -
Java – stop and start JBoss programmatically in eclipse
Can JBoss be started and stopped programmatically in eclipse? I am using indigo eclipse Java EE, and I have a JBoss 5.…… -
How do I get node boundaries based on a specific ancestor in JavaFX 8?
I added a chart in anchorpane. I want to get the boundary of its chart (chart chart, I mark it with cyan), so that I c…… -
Java 8 type inference error, assigning lambda expression to variable of object type
Why does the java compiler complain about the first statement? This is because the expression () – > "" does not ha…… -
Java – multiple conditions in ternary conditional operators?
I'm in the first semester of Java programming. We just introduced the conditional operator (?:) condition I have two p…… -
Java – why is my null check so slow?
So my code looks like this right now public boolean in(TransactionType... types) { if (types == null || ty…… -
Java – a better way to call a function multiple times
See English answers > performance of static methods vs instance methods3 >Create the object only once and call t…… -
Java – should enumerated objects be stateless?
According to the design, the enumeration constant in Java is a singleton. For concurrent use, I usually create statele…… -
Java – how do I easymock actors?
How can I simulate an actor's performance sqlMapClient sqlMapClient; sqlMapClientImpl sqlMapClientImpl = (sqlMapClient…… -
Java – listen for login events in JBoss as 6
I have an application running in JBoss as6 Authentication is using the 'form' authentication method and the user is lo…… -
Play with framework Java dependency injection – when to use singletons
I tried to find out how to use dependency injection in play framework 2.4 I am familiar with general principles, but I…… -
Programmatically determine whether to assign IP addresses through DHCP or manually set them in Java
The title summarizes it Is there any way to find out whether the local network interface has its address assigned thro…… -
How to set up a complex java development infrastructure?
I am looking for a complete java development infrastructure that integrates: >IDE like eclipse, > build system l…… -
Java – what should JAXB return from the ‘beforemarshal (marshaler)’ method?
First of all, I'm not talking about Marshall #listener Anyone can tell me what should be returned from the Boolean bef…… -
Run the subprocess to correctly provide input and output in Java
I use the runtime exec () method to create subprocesses in Java However, since the subprocess is an interactive progra…… -
Java – the fastest way to read long [] from a file?
I have a file containing about 200000 long values, and I hope to read it into long [] It is suitable for Android appli…… -
Java – generic method call
I have this code from "Java - Beginner's Guide - Schildt", Chapter 13: package com.chapter.thirteen; public class Gen…… -
Java – unable to get JPA entity ID in JSON output
We are trying to use the POC of spring data JPA and spring data rest We are using a simple entity that extends abstrac…… -
Java – I should put log4j Do you want to put the properties file into the library?
I have a library project This project uses log4j for logging I should put log4j Properties into the generated jar? If …… -
Java – HTML ASCII case insensitive ICU collator
I need to create one corresponding to https://www.w3.org/2005/xpath-functions/collation/html-ascii-case-insensitive/ C……