java

When should I use TypeExcludeFilters in Spring?

由 纵饮孤独 提交于 2021-02-19 03:36:30
问题 Recently, Spring Boot added TypeExcludeFilters. One prominent use case is the SpringBootApplication annotation. Before Spring Boot 1.4: // ... @ComponentScan public @interface SpringBootApplication { // ... Since Spring Boot 1.4: // ... @ComponentScan(excludeFilters = @Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class)) public @interface SpringBootApplication { // ... The main motivation seems to improve testing support in Spring, but I fail to get an intuitive understanding

When should I use TypeExcludeFilters in Spring?

由 家住魔仙堡 提交于 2021-02-19 03:36:03
问题 Recently, Spring Boot added TypeExcludeFilters. One prominent use case is the SpringBootApplication annotation. Before Spring Boot 1.4: // ... @ComponentScan public @interface SpringBootApplication { // ... Since Spring Boot 1.4: // ... @ComponentScan(excludeFilters = @Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class)) public @interface SpringBootApplication { // ... The main motivation seems to improve testing support in Spring, but I fail to get an intuitive understanding

Spring Boot JacksonTester custom serializer not registered

由 送分小仙女□ 提交于 2021-02-19 03:35:18
问题 Trying to run the through Jackson library for some upcoming work. I've got the following test model: Address.java package com.example.domain; import java.time.LocalDate; import org.apache.commons.lang3.builder.EqualsBuilder; import org.apache.commons.lang3.builder.HashCodeBuilder; import org.apache.commons.lang3.builder.ToStringBuilder; import org.apache.commons.lang3.builder.ToStringStyle; import com.fasterxml.jackson.databind.annotation.JsonDeserialize; import com.fasterxml.jackson.databind

How do I show only the HSV box of a JColorChooser?

由 佐手、 提交于 2021-02-19 03:35:10
问题 In this image you can see a default Java Swing color chooser, JColorChooser : What I want is just the color square and vertical slider as outlined in red: I was able to remove all the tabs (Swatches, HSL, etc) and the preview, but I was unable to remove all the sliders. How can I do this? 回答1: OK, just for grins, I decided to create your desired JPanel from scratch, wiring it up in a kind of View-Controller set up, since the model here is trivial -- a Color field within the controller. To use

Spring config xml isn't valid after adding spring-data-jpa schema references

由 て烟熏妆下的殇ゞ 提交于 2021-02-19 03:34:09
问题 I have the following Exception while starting the spring context: java.lang.Exception: java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.apache.catalina.LifecycleException: org.xml.sax.SAXParseException; systemId: http://www.springframework.org/schema/data/jpa/; lineNumber: 1; columnNumber: 55; White spaces are required between publicId and systemId. Before I added the spring-data-jpa to the spring config.xml everything worked fine.

JSF ValueChangeListener not working

由 余生颓废 提交于 2021-02-19 03:32:30
问题 I am learning how to use events with JSF. For some reason, the program is not changing the value in the text field when I change the value of the dropdown menu. The page loads and shows "Germany", but does not change the text field to "DE". Any suggestions? Index.xhtml: <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java

JSF ValueChangeListener not working

由 爷，独闯天下 提交于 2021-02-19 03:32:04
问题 I am learning how to use events with JSF. For some reason, the program is not changing the value in the text field when I change the value of the dropdown menu. The page loads and shows "Germany", but does not change the text field to "DE". Any suggestions? Index.xhtml: <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java

How to save current state of graphics on JPanel [duplicate]

由 房东的猫 提交于 2021-02-19 03:28:33
问题 This question already has answers here : How to serialize Java 2D Shape objects as XML? (2 answers) Closed 6 years ago . I have a program that lets the user add rectangles and circles to JPanel using Graphics. What I want to be able to do is save the current state of the current JPanel (i.e. all of the shapes and their locations) into a file and be able to load that file back and restore that state. I have a Shapes class that extends JPanel and does all of the drawing and keeps track of the

ForkJoinPool performance Java 8 vs 11

由 故事扮演 提交于 2021-02-19 03:25:28
问题 Consider the following piece of code: package com.sarvagya; import java.util.Arrays; import java.util.List; import java.util.concurrent.ExecutionException; import java.util.concurrent.ForkJoinPool; import java.util.stream.Collectors; public class Streamer { private static final int LOOP_COUNT = 2000; public static void main(String[] args){ try{ for(int i = 0; i < LOOP_COUNT; ++i){ poolRunner(); System.out.println("done loop " + i); try{ Thread.sleep(50L); } catch (Exception e){ System.out

java.sql.SQLException: An attempt by a client to checkout a Connection has timed out

由 拈花ヽ惹草 提交于 2021-02-19 03:25:09
问题 I have a java client server which is supposed to establish connection pool on startup but its failing on timeout error. There are so many threads on this same issue but none of the solutions worked for me AM using jdk 7 and below is the mchange maven dependency <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.2.1</version> </dependency> jdbc.properties url=jdbc\:sqlserver\://server\\instance;databaseName\=db driver=com.microsoft.sqlserver.jdbc
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