Programmer Group

Understanding Spring Boot Spring Boot official website SpringBoot makes it easy to create independent, production-level Spring-based applications that you can "run only". We have a unique view of the Spring platform and third-party libra ...

I. Preface Any report has a data source, which is the source of all data. JasperSoft is no exception, of course, because it supports rich data source adapters. For example, common Jdbc, MongoDB, Json, JNDI, and even our custom implementation of JRDataSource are possible. As shown in the figure below, ...

Component declaration Annotations such as @Component, @Configuration, @RestController, @Service, @Repository are declared on the class to indicate that the class needs to be injected into the IoC container. 1, @Configuration and @Bean @Configuration is often used in conjunction with @Bean to inject third-party components. Example: Injecting Dru ...

Overview of SpringBoot background Springboot uses (conventions are greater than configurations). There are a lot of configurations in the project. In addition, some customary configurations are built in, which greatly reduces our workload. Spring boot makes it easy to create a spring framework-bas ...

SpringData JPA springdata Learning Log--day1 1. Basic introduction of Spring-data-jpa 2. Integration with Spring 3. Usage and details springdata Learning Log - day1 1. Basic introduction of Spring-data-jpa spring-data jpa represents the integration with jpa, and hibernate implementation standard is provided by JPA ( ...

Running batch updates on a very low-configuration machine today~~~ Running for about 30 minutes ~~This configuration ~~This program~~~ And then the magnificent newspaper went off the beaten track.~~~ This is the specific exception. DEBUG: (BaseJdbcLogger.java:132) ooo Using Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@4d4 ...

Error stack as fllow: 2017-07-10T08:41:36,134 ERROR [task-runner-0-priority-0] io.druid.indexing.overlord.ThreadPoolTaskRunner - Exception while running task[HadoopIndexTask{id=index_hadoop_pageviews_2017-07-10T08:40:32.650Z, type=index_hadoop, dataSource=pageviews}] java.lang.RuntimeException: java.lang.reflect.InvocationTargetException a ...

1. As a supplement to the previous one, this article can be referred to.     https://my.oschina.net/swiftloop/blog/1031404 2. Realization     1)pom.xml <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apa ...

introduce Fast-family-data source is a multi-data source processing module in fast-family framework. It provides XA distributed transaction processing, annotations specify data sources, and simple configuration file pointing can complete multi-data sources and transaction management. Note: For the time being, only druid data sources are support ...

Preface Last time I introduced the simple integration of Mybatis in Spring Boot. This article goes deep into creating a template framework suitable for enterprise development by combining generic Mapper, Mybatis Geneator and Page Helper. text The project framework still uses Spring Boot's ace back-end template ...