Recent Posts
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How to force timeout to drivermanager Getconnection () method call?
I have an application that will establish a database connection with MySQL and execute queries Sometimes, drivermanage…… -
Java – Eclipse: externalizing strings?
It seems that the "externalize strings" function can get all the contents, generate a messages class, and a Txt file, …… -
How to use java to get the list of available serial ports in my computer?
I just run some code to get the list of available ports in my cmputer. When I have three free COM ports, it returns my…… -
Java – JAXB uses the extension object factory to extend the generated code – explicit conversion, okay?
I have some JAXB - generated beans, which are hierarchical. For example, a bean has a list of other beans Now I want t…… -
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…… -
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 – 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 – preserve keyboard layout in swing applications?
I have a Java Swing application that generates sub dialog boxes with text controls The problem is that when you change…… -
How to declare 32-bit integers in Java?
I am looking for a Java application running on 32 - bit and 64 - bit systems, which mainly deals with IP addresses The…… -
The wrong class was called in the multi version JAR file on Java 9?
I found a problem with the applet using multiple versions of jar. I hope someone can help me I have a very simplified …… -
Java – missing classpath entry in eclipse
I am using eclipse, Helios service release 2, build ID: 20110218-0911 I created a new dynamic website, in which I adde…… -
. Net – thread stack and stack
How to generate new threads, i.e. memory heap, how memory stack is related to threads, and how to allocate memory? I k…… -
Java: regular expressions escaping regular expressions
This sample data is returned by the web service I want to split them with split (",") and try to see the results with …… -
Java – listener for session expiration in spring
I am new to spring and use it for authentication One problem I face is that when the browser closes or encounters any …… -
Using java 9 JDK to locate Java 6 will issue a warning
I'm trying to build a project using JDK 9, because using javac's – release parameter means that it can build for an ol…… -
Java – when the signature of a method is defined as collection, why can’t a method adopt collection
I have a method that takes a list of sresource objects public static List<STriple> listTriples(List<SResource…… -
Java – Hibernate: manually call sequencegenerator?
I wrote my idgenerator: public class AkteIdGenerator implements IdentifierGenerator { public Serializable generate(…… -
java. util. IntelliJ deprecation warning for HashMap
IntelliJ seems to think that Java util. HashMap's no Arg constructor has been deprecated, as judged by its style of ma…… -
Java – show me a simple example of Oracle streams?
I have just started my research project and hope to use Oracle streaming I'm looking for an example of a direct, hello…… -
Java – the progress dialog box is displayed but no progress bar is displayed and the message is not updated
I have a class called from a fragment The progress update is called, but the message is not updated I also don't see a…… -
Java – generic method call
I have this code from "Java - Beginner's Guide - Schildt", Chapter 13: package com.chapter.thirteen; public class Gen…… -
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…… -
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…… -
Suggestions for designing large Java webapps from scratch
I'm about to start developing a large system, and I'm trying to move in which direction I have done a lot of Java Web …… -
Java – ignore the saxexception “content not allowed in trailing section”
I'm using Java's documentbuilder Parse (InputStream) to parse XML documents Occasionally, I get malformed XML document…… -
Effective Java: security of forwarding classes
Effective java version 3, Item 18: composition over inheritance describes the problem of adding behavior to classes us…… -
Grizzly – java. lang.NoSuchMethodError：javax. xml. ws. WebFault. messageName
I have a WSDL file for the web service I want to test the interaction between the client and the server To do this, I …… -
Java – generic method call
I have this code from "Java - Beginner's Guide - Schildt", Chapter 13: package com.chapter.thirteen; public class Gen…… -
Java – simulate P2P network traffic on a computer
What is the best way to simulate a network in Java? I am in the early stage of the network peer-to-peer project and ha…… -
What is the purpose of Android – feedreadercontract and how to define internal classes in the openhelper class
public static class FeedReaderContract{ // Prevents the FeedReaderContract class from being instantiated. pri…… -
Java – how to configure jcombobox not to select the first element when it is created?
Question: @ h_ 403_ 2 @ update: DefaultCombo@R_754_2419@Model model = new DefaultCombo@R_754_2419@Model(); model.s…… -
Java – how to reduce the impact of visual VM on heap usage?
I'm trying to optimize the memory usage of my application Unfortunately, use - DCOM sun. management. JMX remote runs m……