spring-boot | List of Spring Boot Tutorials | Object-Relational Mapping library
kandi X-RAY | spring-boot Summary
kandi X-RAY | spring-boot Summary
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Top functions reviewed by kandi - BETA
- Starts books .
- Send an email with an attachment .
- Find image by bookid
- Handle method argument not valid .
- Updates an existing book .
- Returns the error attributes .
- Find books by name and price and price
- Configures the HttpSecurity methods .
- Find all customers .
- Handles query .
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Community Discussions
Trending Discussions on spring-boot
QUESTION
e: this has been fixed through Spring Boot 2.6.5 (see https://github.com/spring-projects/spring-boot/issues/30243)
Since upgrading to Spring Boot 2.6.X (in my case: 2.6.1), I have multiple projects that now have failing unit-tests on Windows that cannot start EmbeddedKafka
, that do run with Linux
There is multiple errors, but this is the first one thrown
...ANSWER
Answered 2021-Dec-09 at 15:51Known bug on the Apache Kafka side. Nothing to do from Spring perspective. See more info here: https://github.com/spring-projects/spring-kafka/discussions/2027. And here: https://issues.apache.org/jira/browse/KAFKA-13391
You need to wait until Apache Kafka 3.0.1
or don't use embedded Kafka and just rely on the Testcontainers, for example, or fully external Apache Kafka broker.
QUESTION
I'm trying to initiate a Springboot project using Open Jdk 15, Springboot 2.6.0, Springfox 3. We are working on a project that replaced Netty as the webserver and used Jetty instead because we do not need a non-blocking environment.
In the code we depend primarily on Reactor API (Flux, Mono), so we can not remove org.springframework.boot:spring-boot-starter-webflux
dependencies.
I replicated the problem that we have in a new project.: https://github.com/jvacaq/spring-fox.
I figured out that these lines in our build.gradle file are the origin of the problem.
...ANSWER
Answered 2022-Feb-08 at 12:36This problem's caused by a bug in Springfox. It's making an assumption about how Spring MVC is set up that doesn't always hold true. Specifically, it's assuming that MVC's path matching will use the Ant-based path matcher and not the PathPattern-based matcher. PathPattern-based matching has been an option for some time now and is the default as of Spring Boot 2.6.
As described in Spring Boot 2.6's release notes, you can restore the configuration that Springfox assumes will be used by setting spring.mvc.pathmatch.matching-strategy
to ant-path-matcher
in your application.properties
file. Note that this will only work if you are not using Spring Boot's Actuator. The Actuator always uses PathPattern-based parsing, irrespective of the configured matching-strategy
. A change to Springfox will be required if you want to use it with the Actuator in Spring Boot 2.6 and later.
QUESTION
I've created a new Java project in IntelliJ with Gradle that uses Java 17. When running my app it has the error Cause: error: invalid source release: 17
.
My Settings
I've installed openjdk-17
through IntelliJ
and set it as my Project SDK
.
The Project language level
has been set to 17 - Sealed types, always-strict floating-point semantics
.
In Modules -> Sources
I've set the Language level
to Project default (17 - Sealed types, always strict floating-point semantics)
.
In Modules -> Dependencies
I've set the Module SDK
to Project SDK openjdk-17
.
In Settings -> Build, Execution, Deployment -> Compiler -> Java Compiler
I've set the Project bytecode version
to 17
.
Gradle
...ANSWER
Answered 2021-Oct-24 at 14:23The message typically entails that your JAVA_HOME environment variable points to a different Java version.
Here are the steps to follow:
- Close IntelliJ IDEA
- Open a terminal window and check your JAVA_HOME variable value:
- *nix system:
echo $JAVA_HOME
- Windows system:
echo %JAVA_HOME%
- *nix system:
- The JAVA_HOME path should be pointing to a different path, then set it to the openjdk-17 path:
- *nix system:
export JAVA_HOME=/path/to/openjdk-17
- Windows system:
set JAVA_HOME=path\to\openjdk-17
- *nix system:
- Open your project again in IntelliJ IDEA
- Make sure to set both source and target compatibility versions (not only the
sourceCompatibility
)
You should be able to build your project.
EDIT: Gradle ToolchainYou may need also to instruct Gradle to use a different JVM than the one it uses itself by setting the Java plugin toolchain to your target version:
QUESTION
I got this below error when run the API-GATEWAY, I tried so many ways but I couldn't solve this issue.
Description:
Spring MVC found on classpath, which is incompatible with Spring Cloud Gateway.
Action:
Please set spring.main.web-application-type=reactive or remove spring-boot-starter-web dependency.
Main Class
...ANSWER
Answered 2021-Aug-01 at 06:17Please note that Spring Cloud Gateway is not compatible with Spring MVC (spring-boot-starter-web
). This is outlined in section "How to include Spring Cloud Gateway in the official reference documentation":
Spring Cloud Gateway is built on Spring Boot 2.x, Spring WebFlux, and Project Reactor. As a consequence, many of the familiar synchronous libraries (Spring Data and Spring Security, for example) and patterns you know may not apply when you use Spring Cloud Gateway.
Additionally, it is stated that:
Spring Cloud Gateway requires the Netty runtime provided by Spring Boot and Spring Webflux. It does not work in a traditional Servlet Container or when built as a WAR.
As already suggested by the error message, you would need to remove the dependency on spring-boot-starter-web
. You can list all your direct and transitive dependencies with the following command:
QUESTION
I'm trying to connect Spring Security to my project. Created the Security Config class
...ANSWER
Answered 2022-Mar-02 at 19:19If this is a local environment, you don't need to configure Spring, instead you modify angular configuration.
Create a file proxy.conf.json
in your project's src
/ folder.
Add the following content to the new proxy file:
QUESTION
My question is very similar to this question that has already been asked and answered but is not 100% up-to-date.
We used the solution from Chris Gaskill for quite some time and it suited us perfectly because we wanted to redirect requests that contain more than one path segment (i.e. /foo/bar
)
From Spring Boot 2.4 on, Boot uses the PathPatternParser
instead of the AntPathMatcher
, wherein the former does not support **
at the start of a pattern anymore (see docs).
Is there some other solution to get the same behavior? What do you use to redirect all requests, that did not match anything else, to the index.html
of the Angular app?
This is the code of the controller that forwards the requests.
...ANSWER
Answered 2022-Feb-23 at 15:02Have you tried to implement redirection on Angular side? In my application I've solved this like:
QUESTION
I wan to implement a Junit 5 test into Gradle project. I tried this:
Gradle configuration:
...ANSWER
Answered 2021-Dec-22 at 21:35GeneratePdf
does not match the default name pattern for test classes. The default pattern is Test*|*Test|*Tests
.
You can change it in your Gradle file with
QUESTION
I'm deploying a spring-boot application and prometheus container through docker, and have exposed the spring-boot /actuator/prometheus
endpoint successfully. However, when I enable prometheus debug logs, I can see it fails to scrape the metrics:
ANSWER
Answered 2022-Feb-07 at 22:37Ok, I think I found my problem. I made two changes:
First, I moved the contents of the web.config.file into the prometheus.yml file under the 'spring-actuator'. Then I changed the target to use the hostname for my backend container, rather than 127.0.0.1.
The end result was a single prometheus.yml file:
QUESTION
I have quite a few projects that is slowly being migrated from Java to Kotlin, but I'm facing a problem when changing from Java POJO to Kotlin data classes. Bean validation stops working in REST controllers. I have created a very simple project directly from https://start.spring.io to demonstrate the failure.
...ANSWER
Answered 2021-Dec-16 at 07:38I think you are just missing @Validated annotation on top of your controller class.
QUESTION
I am unable to update my spring boot app to 2.6.0 from 2.5.7. It throws the following error.
...ANSWER
Answered 2021-Dec-07 at 19:14The problem is the password encoder. It is required to build the auto-configured UserDetailsService
that you inject in the contructor of the class.
You can break the cycle by making the bean factory method static
:
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