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How to configure the MyBatis framework in Spring Boot

Overview of how to configure the MyBatis framework in SpringBoot: MyBatis is an open source Java persistence framework used to access databases in applications. It provides a simple and flexible way to map Java objects to database tables, as well as perform SQL queries and update operations. SpringBoot is a framework for creating standalone, Spring-based applications that simplifies the development process of MVC and other configurations. By using the two together, we

Feb 18, 2024 pm 05:51 PM

配置mybatissql语句

Spring amqp - No compatible authentication mechanism found - providing server

I'm trying to connect a springboot application to rabbitmq (https://github.com/rabbitmq/rabbitmq-auth-mechanism-ssl) via an external authentication mechanism. I get the following error: org.springframework.amqp.amqpioexception:java.io.ioexception:nocompatibleauthenticationmechanismfound-serveroffered[]atorg.s

Feb 14, 2024 am 08:50 AM

Access AWS Keyspace from a springboot application

I'm trying to do a POC to understand how to connect AWSKeyspace from a springboot application. I'm running it from my local desktop. I am using IAM user accesskey/secret and using datastax and awsjavasdk dependencies. application.propertiesaws.accessKey=ACCESS_KEYaws.secretKey=SECRET_KEYaws.region=us-east-2aws.keyspace.endPoint=cassandra.us-ea

Feb 11, 2024 pm 07:27 PM

Prometheus /metrics page is not updated after calling counter

I have a springbean where the gauge is initialized like this: @postconstructpublicvoidinitgauge(){paymentstriedgauge=gauge.build().name("payments_tried").help("howmanypaymentswassenttopaymentservicestobecreated").register(registry.getprometheusregistry())

Feb 11, 2024 pm 05:09 PM

Docker Compose + Spring Boot + Postgres connection

I have a JavaSpringBoot application that works with a Postgres database. I want to use Docker for both of them. I initially just put Postgres into Docker and had a docker-compose.yml file defined like this: version:'2'services:db:container_name:sample_dbimage:postgres:9.5volumes:-sample

Feb 11, 2024 pm 03:39 PM

java应用程序

Need @Bind?

I accidentally discovered that in a springboot project I don't have to bind parameters in a query like below. @sqlquery("""selectid,namefromorganisationswhereid=:id""")@registerrowmapper(organisationmapper.class)organisationgetorgansation(@bind("id")stringid);This works: @SqlQ

Feb 11, 2024 pm 01:57 PM

Spring Boot embedded ActiveMQ Artemis broker connection

I have a very simple springboot2.7.6activemqartemis application that listens for messages. packagehello;importorg.springframework.boot.springapplication;importorg.springframework.boot.autoconfigure.springbootapplication;importorg.springframework.context.annotation.bean;importor

Feb 11, 2024 pm 01:39 PM

How to remove 'Request method 'GET' is not supported' error from screen in java

When I access the urlapi in the browser I get this error on the screen: Request method 'get' is not supported What I want is to get rid of this error completely when I access the url directly in the browser. I tried creating exception handler logic to catch the error and show blank text but it doesn't work Here is my code: importorg.springframework.http.HttpStatus;importorg.springframework.http.ResponseEntity;importorg.springframework.web.bind. annotation.Cont

Feb 11, 2024 am 10:48 AM

java应用程序

Spring server architecture using ssl and websockets

I wrote a server backend for an application I created. The application connects to the backend via https protocol and also opens a websocket using wss protocol. The app will make requests via http and receive push notifications via websocket. One thing I'd like to add is that my server is behind haproxy to allow for horizontal scaling. I purchased a certificate provided by a web server. I'm not using a self-signed certificate. Websockets keep disconnecting, and after some experimentation, it seems that disabling ssl in the SpringBoot server solves this problem. From what I understand it is highly recommended for applications to use ssl

Feb 09, 2024 pm 09:30 PM

spring框架

Spring boot logging-how to remove trace log prefix

1.messagelog{"@timestamp":"2023-12-18t22:36:22.449z","severity":"info","service":"mopservice-jcr-svc","traceid":"afa32548086d2994","spanid":"afa32548086d2994","user-id":"","iv-user":"","customer-number":"","exportable":"","pid":"1","thread":"http-nio

Feb 09, 2024 pm 09:03 PM

How to add image to html page using Thymeleaf?

My problem is that my thymeleaf block is not showing image and shortcut icon on html page I tried using file path: and also tried using restapi: There is controller: @RestController@RequestMapping("/api/v1/logo") publicclassLogoController {@GetMapping(produces=MediaType.IMAGE_JPEG_VALUE)publicResourcegetLogo()throwsIOEx

Feb 09, 2024 pm 05:30 PM

When trying to start two or more Spring Batch jobs at the same time, an error is thrown: ORA-08177: Unable to serialize access for this transaction

I encountered an error while trying to run two springbatch jobs in parallel using a completablefuture. The error message is as follows: originalsql=insertintobatch_job_instance(job_instance_id,job_name,job_key,version)values(?,?,?,?),errormsg=ora-08177:can'tserializeaccessforthistransactionI am using spring

Feb 09, 2024 pm 05:00 PM

lsp

The maximum limit of MultipartFile in Spring Boot

Is there a maximum file size that springboot can handle during MultipartFile upload? I know I can set maxFileSize in properties like multipart.maxFileSize=1Mb. This way, I can allow uploading a large file, say 50MB. The application runs on a Tomcat server integrated with SpringBoot. Do I still need to configure the tomcat server? Or unlimited file size?

Feb 09, 2024 pm 02:39 PM

Spring boot WebFlux: WebFilter doesn't work

I have the following controller which returns string mono@restcontroller @requestmapping("api/v1/test") publicclasstestcontroller{@postmappingpublicmonogetdraft(){returnmono.just("ok");}} I added beanwebfilter to Do some processing when the request comes, the problem is that the message in the bean is not displayed in the console, I tried adding breakpoints to debug, but when

Feb 09, 2024 am 09:30 AM