Recent questions tagged java

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java - How to re-create database before each test in Spring?

My Spring-Boot-Mvc-Web application has the following database configuration in application.properties file: spring. ... @DirtiesContext. Why? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - What do I return if the return type of a method is Void? (Not void!)

Due to the use of Generics in Java I ended up in having to implement a function having Void as return type: ... general use of the Void class? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Most concise way to convert a Set<T> to a List<T>

For example, I am currently doing this: Set<String> setOfTopicAuthors = .... List<String> list = Arrays.asList( ... ); Can you beat this ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Should I store git repository in Home or Eclipse Workspace?

I'm just moving from svn to git, and am keen to lay some good foundations. By default Eclipse wants ... some unreliable internet comms issues. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why can't we define a top level class as private?

Why does Java not allow a top level class to be declared as private? Is there any other reason other than "We can't access a private class"? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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378 views

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java - How do I use the JAVA_OPTS environment variable?

How do I use the JAVA_OPTS variable to configure a web server (a linux server)? How can I set -Djava.awt.headless=true using JAVA_OPTS? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Tomcat startup logs - SEVERE: Error filterStart how to get a stack trace?

When I start Tomcat I get the following error: Jun 10, 2010 5:17:25 PM org.apache.catalina.core. ... traces for errors like this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to deploy SNAPSHOT with sources and JavaDoc?

I want to deploy sources and javadocs with my snapshots. This means that I want to automize the following ... it to the snapshots releases. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Hibernate Query By Example and Projections

To make it short: hibernate doesn't support projections and query by example? I found this post: The code ... and query by example ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - how to handle 2000+ requests/sec on tomcat?

I am developing an SMS application in Java. My clients send queries via SMS which will be forwarded to my ... not using any session variables. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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218 views

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java - How does the Netty threading model work in the case of many client connections?

I intend to use Netty in an upcoming project. This project will act as both client and server. Especially it ... Could anyone elaborate on this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Bauerca drag-sort-listview simple example

Bauerca drag-sort-listview is an amazing library for the drag functionality in a list view.. https://github.com ... simple example.. Thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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125 views

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java - How to search for a string in JAR files

My application is built on Java EE. I have approximately 50 jars in this application. Is it possible to search ... for a keyword BEGIN REQUEST)? See Question&Answers more detail:os...