包含标签：Java 的文章
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@Managed beans in escbed @ EJB cause Java io. NotSerializableException
I've been banging my head with the @ viewscoped managed bean I am using the "schedule" component of the form to displa…… -
Java – how to call restful services through Apache camel?
I am currently using the HTTP method to call some URLs that will create JIRA problems Now I want to use Apache camel. …… -
Java – what is the purpose of partitioning
For example, if I want to split some elements, I can do something like: Stream.of("I","Love","Stack Overflow") .…… -
How to redraw the window (stage) in Java FX 2.2
I need to redraw a window when selecting combo box elements Here is my code functionCombo@R_683_2419@.valueproperty().…… -
Java – use annotations in hibernate to define default column values
I know there are many questions about so and network, but all the answers suggest using column definition, which is da…… -
JPA – how to add a criteriabuilder with a custom “on” condition?
I want to use criteriabuilder to query and add 2 tables In mysql, the query I want is as follows: SELECT * FROM order …… -
Java – transaction log Library
I need a transaction log library with the following functions: @ h_ 404_ 2 @ > maximum performance No flush, let th…… -
Using java to consume restful APIs
How would you use Java or just standard packages to use restful APIs? For example: Twitter API I know there are good j…… -
Java streams: get value groups through internal map keys
I have map < A, map < B, C > > and I want to get map < B, list < C > > from it using java stre…… -
Java – why should the value of an annotation attribute be a constant expression?
I have the following code @UIUnitTimeout(8*60*1000) // works @UIUnitTimeout(TimeUnit.MINUTES.toMillis(8)) // does not…… -
Type javax servlet. ServletContext and javax servlet. ServletException cannot be resolved
I'm trying to include spring security in my web project, and I'm following this tutorial http://docs.spring.io/spring-…… -
Java 8 stream filters the values in the list
I have an object that looks like this class MyObject { String type; List<String> subTypes; } Is it pos…… -
Java – query returns multiple result sets
I have an MSSQL database and am running the following query: select * from projects; select * from user The above quer…… -
Java – add token to Lucene tokenstream
I wrote a tokenfilter, which adds tokens to the stream Tests show that it works, but I don't fully understand why I wo…… -
Java – perform UPnP scan without returning to Philips hue Bridge
I tried to implement my own UPnP scan. It mainly works and proves that this is not me. I have a Windows program that a…… -
Java – inherit JPA and Hibernate issues
I have a strange problem loading some objects I use JPA 1, hibernate core version 3.3 0.sp1 and hibernate entitymanage…… -
Java – two related enumeration mappings?
I have two related enumerations Enum1： public enum HttpMethodName { GET,POST,PUT,DELETE; } Enum2： public enum …… -
Java – avoid generic forms foo >
I often find myself writing generic class definitions for forms public class Foo<ActualType extends Foo<ActualTy…… -
Is there any way to reinitialize a static class in Java?
I try to unit test a class that references static data from another class I can't "not" use this static class, but obv…… -
Multithreading – upgrading threads using CLR
Using Visual Studio 2008 and boost library 1.46 1 I want to compile and link the following and / or CLR flags: #includ…… -
What is the smallest Java Web MVC framework?
I am looking for a java web framework that requires minimal configuration for a very small application Struts is defin…… -
Java URL protocol: classpath: /?
I see some spring code that uses the classpath: / some / path / to / resource URL protocol to read configuration files…… -
Find a good tutorial on how to develop OData services in Java (with restlet, Jersey or odata4j)
I am looking for a tutorial that shows how to develop an OData service using Java Solution The odata4j document on dep…… -
Java: why is there no warning when referencing a field before defining it?
Static fields cannot be referenced until defined or initialized: static Integer j = i; /* compile error */ static fina…… -
Java – write a method to replace all spaces in a string
I have a question about programming, starting with gayl laakmann McDowell's "cracking the code interview" in the fifth…… -
Java 8 lambda api
I'm trying to migrate from RX java to Java 8 Lambdas An example I can't find is the method of buffering requests For e…… -
java – Optional. Ofnullable and method links
I'm interested in optional The ofnullable method surprised me One day I wrote a function that should return an optiona…… -
Java – getters / setters of classes with maps
What are the best practices for implementing / providing getters / setters for courses with maps? The most common impl…… -
Java – get the Maven version of the project programmatically
How do I programmatically get the Maven version of my project? To put it another way: static public String getVersion(…… -
Java – sometimes it takes 45 seconds to close RandomAccessFile
In my program, close Java util. RandomAccessFile sometimes takes 45 seconds (almost exactly between 44.998 and 45.003 …… -
java – org. junit. Assert. Assert is better than org hamcrest. MatcherAssert. assertThat？
I am new to JUnit and hamcrest and want best practice advice, so I can decide which documents to study first For begin…… -
Java – contains type inference for return types, wildcards, and cross types
I'm trying to declare an interface that contains a method that will return an implementation comparator < Object &g……