spring-boot

问题 From JPA documentation I can see that the AUTO is the default flush mode, flush should happen before any query execution. I have tried this on spring boot jpa and I can see the flush won't happen on queries from different entities , is that expected ? even though different entity may have relation to it ( Department <--> Person here ) The flush should trigger before any query according to this article : https://vladmihalcea.com/how-do-jpa-and-hibernate-define-the-auto-flush-mode/ // this

问题 I'm currently creating a simple app for a school project, Spring Boot backend and AngularJS frontend, but have a problem with security that I can't seem to solve. Logging in works perfectly, but when I enter a wrong password the default login popup shows up, which is kind of annoying. I've tried the annotation 'BasicWebSecurity' and putting httpBassic on disabled, but with no result (meaning, that the login procedure doesn't work at all anymore). My security class: package be.italent.security

问题 I'm currently creating a simple app for a school project, Spring Boot backend and AngularJS frontend, but have a problem with security that I can't seem to solve. Logging in works perfectly, but when I enter a wrong password the default login popup shows up, which is kind of annoying. I've tried the annotation 'BasicWebSecurity' and putting httpBassic on disabled, but with no result (meaning, that the login procedure doesn't work at all anymore). My security class: package be.italent.security

问题 My project is using spring-boot , sping-data-jpa , spring-data-rest , hibernate I have updated to spring boot 2.3.1 . My previous test cases are on Junit 4 , I am migrating to Junit 5 . When I run my test case with junit 5 it is looking for actual environmental configurations like datasource , hibernate:dialect with Junit 4, it was not looking for it. Please find Junit 4 and Junit 5 test class for comparison Junit 4 Test import org.junit.Before; import org.junit.Test; import org.junit.runner

问题 Connection read-only mode is not enforceable after the connection has been established. To enforce a read only connection, set the read-only data source or connection property. ERRORCODE=4474, SQLSTATE=01000 Here is my Cotroller package com.course.springbootstarter.topic; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestBody; import org

问题 Hello I am trying to export the MongoClient after a successful connection in Spring Boot and I am trying to use it in other files so that I do not have to call the connection every single time that I need to make changes in my MongoDB database. The connection is pretty simple but the goal would be to connect the application to my database once and then use it wherever I want by importing it in any Java file. Thank you 回答1: Here are couple of ways of creating an instance of MongoClient ,

问题 Hello I am trying to export the MongoClient after a successful connection in Spring Boot and I am trying to use it in other files so that I do not have to call the connection every single time that I need to make changes in my MongoDB database. The connection is pretty simple but the goal would be to connect the application to my database once and then use it wherever I want by importing it in any Java file. Thank you 回答1: Here are couple of ways of creating an instance of MongoClient ,

问题 I have job configuration as below @SpringBootApplication public class Test implements CommandLineRunner { @Autowired JobLauncher jobLauncher; @Autowired Job job; @Autowired private JobBuilderFactory jobs; @Autowired private StepBuilderFactory steps; public static void main(String[] args) { SpringApplication.run(Test.class, args); } @Override public void run(String... args) throws Exception { JobParameters params = new JobParametersBuilder() .addString("JobID", String.valueOf(System

问题 So im running my program and I need to setup @NotNull from import javaz.validation.constraints.NotBlank; All there is @NonNull private final String firstName; and import org.springframework.lang.NonNull; How do I install @NotNull or is @NonNull the same thing? 回答1: This should answer your question. Short answer: there is a subtle difference, but it all depends on what you want, so you either need to read the post I've linked above or tell us more information. 来源： https://stackoverflow.com

问题 So im running my program and I need to setup @NotNull from import javaz.validation.constraints.NotBlank; All there is @NonNull private final String firstName; and import org.springframework.lang.NonNull; How do I install @NotNull or is @NonNull the same thing? 回答1: This should answer your question. Short answer: there is a subtle difference, but it all depends on what you want, so you either need to read the post I've linked above or tell us more information. 来源： https://stackoverflow.com