Recent Posts
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In Java, should I create a new package, folder or source folder?
There are a few questions about so, but I'm completely unfamiliar with java development. I don't know the correct meth…… -
An effective way to pass JSON between Java and JavaScript
I'm new to nashorn and write scripts on the JVM, and wonder if I can make my java code communicate with JavaScript mor…… -
Java thread start time
Can I retrieve the start time of a given java thread in the JVM? I have a thread dump. I'm looking at some problematic…… -
Java – transfer privatekey from keystore and use JNI in OpenSSL
I have an Android application using webrtc Everything is perfect But now, the main problem is encryption In order to m…… -
How to pass JSON and file to rest API in Java?
My main question is how to pass JSON and file to send the request to the rest API? What does the spring framework need…… -
. Net – optimistic concurrent remove method of concurrent dictionary
I look for a method in the concurrentdictionary that allows me to press the key to delete an entry. If and only if the…… -
Java – search for data in Web sites
I'm new to Java and have some problems The main idea is to connect to a website and collect information from it and st…… -
Obtain the IPv4 address of Ethernet adapter in windows using java 1.5
problem My windows system has multiple Ethernet adapters Given the name of the Ethernet adapter, I need to find its IP…… -
Java – how to build and run birt source code in eclipse Mars
I can get birt source (4.2.2 branch) from here: https://github.com/eclipse/birt/ Use M2e (Maven integration of eclipse…… -
Java – Jackson Deserialize the missing attribute to null optional
Suppose I have such a class: public static class Test { private Optional<String> something; pu…… -
Java – spring batch: different job initiators for different jobs
I have two different jobs (actually more, but assume 2 for simplicity) Each job can run in parallel with another job, …… -
Java – browser authentication via httpurlconnection
At present, I am studying the implementation of tmdb API There is a method called user authentication I have successfu…… -
Java – why did this method call fail? (generic and wildcard)
I received the following error: 'call(ContainsMonitor)' cannot invoke 'call(? extends webscout.Monitor)' in 'WebScoutC…… -
Eclipse UML plug-in with java code generation
Does anyone know that a good (read: free) eclipse UML plug-in can also do code generation? If not, does anyone know an…… -
Java – how to get hibernate dialect at runtime
In my application, I use hibernate and SQL Server database, so I set <property name="hibernate.dialect" value="org.…… -
Java – spring does not send all the fields in the JSON response
My POJO: import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.Id; import javax.pers…… -
Java – try to configure LDAP as a JNDI resource in Tomcat
I have an LDAP server that I use to authenticate users in the Tomcat web application I'm using jndirealm, which is con…… -
Java – how to pass generic classes as params to the intent constructor
I have this general activity in my android app public class NavegadorActivity<T> extends Activity { .... ..…… -
Java – get rid of GWT MVP template
About the location and attachment of the file activity MVP, I have to create each page: >A place > an activity &…… -
Is there any way to find the number of threads that the task manager runs in Java?
In Java, if I start 1000 threads using the loop shown below, is there any way to monitor the number of threads actuall…… -
How do I prevent duplicate edges from being created between the same vertices in orientdb?
I have vertex "character" and edge "know" This is my SQL example of how to create it CREATE CLASS Person EXTENDS V; CR…… -
Java – use local EJBs in the same container but different ears
I'm trying to use local EJBs in the same GlassFish, but different ears But GlassFish cannot find the local EJB or use …… -
Java – scrolling composites with slow redrawing look ugly
I am implementing the Gantt chart component for SWT, which needs to be redrawn (for example, the whole visible part of…… -
Java – the request method ‘post’ is not supported
According to spring documentation here: They have completed the latter and can be implemented using the following spri…… -
Java – types are created safely to be passed to comparator Function instance of comparing()
Suppose I have a method with the following signature: <T,U extends Comparable<? super U>> Comparator<T&…… -
Java messaging service and Haskell
I wonder if there is any way to receive JMS messages from some providers in the Haskell program, such as ActiveMQ or w…… -
Java – using PostgreSQL, why doesn’t hibernate / JPA create cascading constraints?
I have an entity: @OneToMany(cascade = CascadeType.ALL,mappedBy = "bar") private Set<Foo> fooSet; An entity foo:…… -
How to convert a string to a date in Java, regardless of the system format [copy]
See English answers > parse any date in java3 public static String dateToString(String date){ if(date.equals(""…… -
Java – use log4j to create new log files every day
I want to use log4j in my java project. What configuration should I provide log4j.appender.FILE = org.apache.log4j.Dai…… -
How to find errors in the new JavaFX error tracker
The existing JavaFX error link has died How to find errors in the new system? For example How to find bugs Solution As…… -
Java – Show / hide JPopupMenu from JButton; Focuslistener is not working properly?
I need a JButton with an additional drop-down style menu So I took a JPopupMenu and attached it to JButton in the way …… -
Java – output Jersey record to file?
We have added these to our web In XML: <init-param> <param-name>com.sun.jersey.spi.container.Container……