Recent Posts
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Java: interface vs abstract class (about fields)
From the content I collected, I want to force a class to use specific private fields (and methods). I need an abstract…… -
Implementation of simple and easy folder encryption with JavaScript
So today I want to tell you a good way: encrypt Windows 9x / 2000 folders. By encrypting a folder, all files in the fo…… -
Java – how to add the contents of a list to the end of another list?
How to append the contents of a list to the end of another list? Solution List. addAll() -
Java – spring boot deployed in Tomcat provides 404 but works independently
I've been testing spring boot with embedded Tomcat for about a month to build a rest API Everything is fine We now wan…… -
How to disable log4j logging from Java code
I use log4j to write to the old version Library of logs My default log4j The properties file points logs to the consol…… -
Java – how to enable batch insert in Hibernate?
Using hibernate, when I try to enable batch insert <property name="jdbc.batch_size">50</property> I get th…… -
Generic default constructor Java
public class Sample<T>{ public class Sample<T>{ T data; Sample(){ data = ????; } } How do …… -
Java – how to wrap a sublist in JAXB
When trying to map customers, > order 1: n relationship with JAXB 2.2 6 I want to get The current results are: <…… -
In Linux 7 Install JDK + Tomcat + Oracle9i on 1
This paper draws lessons from http://www.puschitz.com/ Article: installing Oracle 9i on RedHat Linux 7.1, 7.2, 7.3, 8.…… -
Java – G1 garbage collector log analyzer
I am looking for GC log analyzer for the first garbage collector Many people have mentioned "IBM model modeling and an…… -
How does Java and Android darken ImageView
As IOS developers told me, IOS darkens the image when someone clicks it (I don't know how real it is), so I need the s…… -
Java – stop or terminate long-running queries in JDBC
Is there any way to stop or terminate long-running Oracle queries in JDBC? It usually ends up restarting the applicati…… -
Java – where can I specify Jackson serializationconfig. In spring 3.1 Feature settings
I'm confused about why the default Jackson is included. Spring seems to have customized the default Jackson configurat…… -
Multithreading – JPA and threads in the playback frame
I'm trying to create a multithreaded server The problem is that I received the following error: What I want to do is a…… -
Java – converts dates to timestamps in scala
In Scala, I convert date to timestamp I am doing this: val date = new java.util.Date() new java.sql.Timestamp(new org.…… -
Java – findbugs and Google codepro Analytix (Eclipse Plug-in)
I've used Google codepro Analytix, but I've never used findbugs Findbugs' first impression is that configuration is mo…… -
Java – how do I get all the elements of a list through an instance?
How do I get all the elements of a list by instance? I have a list that can have any class implementation of an interf…… -
Java – Android and lambda
I need to integrate some code with the widespread use of Java lambda functions The problem is that using lambda requir…… -
Should I reset the Java heap space after use?
I'm using some modeling algorithms in R, one of which runs in Java (bartmachine) I found that before running the model…… -
Java – selenium webdriver cannot find element through link text
I'm trying to select an element that contains an anchor, but the text is buried in a paragraph within a Div This is th…… -
Java – general helper for closing JDBC objects
It is strongly recommended to close JDBC objects (connections, statements, result sets) when using them However, this …… -
Java – get the date / time when the file was created
This seems to be a very straightforward question, but I can't find a clear answer on the Internet How to obtain the cr…… -
Java – eclipse – an unexpected exception [closed] occurred when trying to create a web service based on a WSDL file
I am creating a web service in the eclipse Java EE IDE (Helios service release 2, Windows 7 32-bit) based on the WSDL …… -
How to convert jdbc4connection to pgconnection?
I want to use Postgres copymanager: CopyManager cp = ((PGConnection) dataSource.getConnection()).getCopyAPI(); Because…… -
Java – I should test for situations where nothing happens
If the status is s or P, the sample can be deleted I have the following tests: @Test public void canBeDeletedWhenStatu…… -
The future of SAP Java connector
Is SAP Java connector still a good way to connect Java applications to sap? Will connectors be supported and maintaine…… -
Java – gson JSON parser array
I want to parse some JSON and parse the array Unfortunately, I can't figure out how to handle nested arrays in JSON JS…… -
Suppress Java findbugs errors (ei_expose_rep)
I have a Java gettor method, as follows: import java.util.Date; //... public Date getSomeDate() { return someDate; }…… -
Java – JSP string format truncation
Does anyone know how to use tag library to truncate strings in JSP? I want to use Jakarta taglibs, but say it's retire…… -
GradleWorkerMain OutOfMemoryError
I'm trying to score the NetBeans RCP project and find strange gradle behavior Environment configuration Gradle 1.9 Bui…… -
Java – spring data findfirstby throws correctresultsizedataaccessexception?
I want to use SQL SELECT. XML with method name in spring data The selection should be sorted by price @Entity public c…… -
Effectively find unique vector elements in the list
I have a list of numeric vectors. I need to create a list that contains only one copy of each vector There is no list ……