Java
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Java – how to detect that “save as PDF…” is selected from AWT printerjob on OS X
I have the following code to display the native Print dialog box in my java application PrinterJob job = PrinterJob.ge…… -
Java – camel FTP seems to hang forever
I have a camel route. It's like being hanged forever. I'm not sure whether it's a camel or an FTP client problem The s…… -
How to use jsr-223 to access Java exceptions that cause scriptexceptions
I'm using jre6's built-in jsr-223 scripting engine to execute JavaScript JavaScript provides access to Java code and o…… -
What is the difference between and Java?
See English answers > What's the difference between and in Java Generics? 3 I have implemented the generic stack …… -
Java – how to effectively calculate cosine similarity between millions of strings
I need to calculate the cosine similarity between strings in the list For example, I have a list of more than 10 milli…… -
What is the correct and effective way to broadcast UDP packets in Java?
I need to broadcast UDP packets on each network interface At first, I tried to play to 255.255 255.255, no results. La…… -
What is the best implementation of Boolean in MySQL using java to connect to the database?
I currently have a MySQL database setup, java client access and use database I need to use Boolean data types in the d…… -
Java – is there a generic Maven code generator?
I am currently developing a project that uses strong code generation for various purposes A generator generates SQL sc…… -
java – JSF 2.0. Failed to get post parameters and cookies in prerenderview event handler
I'm trying to develop a service The key is my index XHTML should get parameters (post and get) and cookies from HTTP r…… -
Java – RSA key pairs are generated and stored in the keystore
I try to generate an RSA key pair and store it in the HSM keystore My current code is as follows: String configName = …… -
Java – how to design a common response builder / restful web service using spring MVC?
Try to use spring MVC to build restful web services The controller should return a specific Java type, but the respons…… -
Java – qpid – spring cacheingconnectionfactory – reconnect
Spring configuration <bean id="jmsQueueConnectionFactory" class="org.apache.qpid.client.AMQConnectionFactory"> …… -
Paging in Google App Engine Using Java
I need to create a simple object page, but when I read the manual, I found query setRange(5,10); Will get 10 objects, …… -
Java – spring MVC ignores the configured propertyeditor and uses the constructor instead
Use spring 3.1 and give such things: class Thing { public Thing() {} public Thing(String someProperty) {} } class…… -
Java – JUnit integration testing across GWT and appengine devmodes using resteasy
I want to run a test. My GWT code sends a request to my app engine server and waits for a response My server uses rest…… -
Java – test the enabled state of GWT simplepaager imagebutton in selenium
We use the simple pager provided by GWT to provide record / page navigation of data sets We want to test that we corre…… -
Java: http publish request
I have to send a request to the web service to authenticate the user with a user name and password I have questions ab…… -
Using IPv6 in real Java programs
IPv6 usage is now slowly starting, so I am currently repairing and updating all applications ready for IPv6 One of the…… -
Java – start the embedded jetty server for jar files
What I want to do is build an executable jar file containing my project I have included its dependencies next to it an…… -
Java – use @ singleton or getsingletons() when implementing singleton resources in Jersey
I have a resource that can be exposed as restful WS If I have to make it a singleton, what are the preferred and recom…… -
Java – Design of multi-level and hierarchical state machines
In network programming, you need a state machine with multiple levels of depth State Machine 1 State Machine 2 …… -
Java – extensible clip mask
I need to cut the variable image into pieces (not squares) in such a puzzle shape: http://www.fernando.com.ar/jquery-p…… -
Java – is this a resource leak or a false positive?
Eclipse gives a warning about the "out" declaration Is this a false positive? Random r = new Random(); try(PrintWriter…… -
Java – how to improve the performance of recursive methods?
I'm learning data structures and algorithms, which is a problem I insist on I have to improve the performance of recur…… -
Perforce pending change list difference script
Does anyone have such a script to share? >Take the pending change list number as input > output a uniform differ…… -
Java – why do hotspots compile logs at the same time as managementfactory getRuntimeMXBean(). Getuptime() is different?
When I start the JVM with parameters -XX:+PrintCompilation The output is as follows: 60 1 java.lang.Str…… -
Java – why does thencallrealmethod () lose its parameters here?
I have the following code: when(mockedOperation.getResult(anyDouble(),anyDouble())).thenCallRealMethod(); when(mockedO…… -
Java – SSO for Facebook integration
Is Facebook integrated single sign on available from other applications? Since Facebook uses OAuth 2.0, it seems that …… -
Java – an easy way to specify a default value using the xmlelement DefaultValue annotation
I have a simple POJO annotation class through JAXB: public class MyPojo implements Serializable { private fin…… -
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Java – get the first frame of the GIF image without downloading all other frames
I want to get GIF images from the Internet, but I find that if I download the whole GIF image, it will lead to a lot o…… -
Java – error in jrmp connection establishment
I'm tracking exceptions: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:……