spring boot mongodb crud example

, adhere to the principle of diversification, choose a better and more economical way, rather than top-down unification. More commonly, we can directly use MongoDB to store key value pairs of data types, such as: Verification Code, session, etc. due to MongoDB's scale-out capability, it can also be used to store data that is very large in the future, such as: logs, comments, etc. Because MongoDB stores the

Tags:%s inter 14. ATI PAT Test Boot ABC System1. functionUse spring to link mongodb, and make additional deletions and checks2. Class structure diagram3. ImplementCode structure Entity #userentity Packagecom.jihite.entity; Public classuserentity {Private intID; PrivateString name; PrivateString passwd; Public intgetId () {returnID; } Public voidSetId (i

Spring boot rest example Introduction: This article will help you use Spring Boot to create simple REST services. You will learn What is a REST service? How to Use Spring Initializr to guide the creation of Rest service appli

Because 3.0.3,mongodb joins the Scram-sha-1 checksum, a third-party tool is required to verify that a user authentication failure occurs when all spring boot is connected to MongoDB.Workaround:>Use Admin switched to DB admin>varSchema = Db.system.version.findOne ({"_id":"Authschema"}) > schema.currentversion =3 3>Db.system.version.save (Schema) Writeresult ({"nma

Example of integrated development of Spring Boot with Spark and Cassandra systems, sparkcassandra This article demonstrates how to use Spark as the analysis engine and Cassandra as the data storage, and use Spring Boot to develop the driver. 1. Prerequisites Install Spark

Spring boot aop record method execution time code example, springaop This article focuses on the implementation code of spring boot aop recording method execution time, as follows. In order to optimize the performance, we need to calculate the execution time of each method f

configuration to [email protected] started 6 plugins. Copy CodeOpen the browser and access: http://localhost:15672/, and use the default user guest login, the password is also guest. We can see the administration page as follows:, we can see some of the basic concepts mentioned in the previous chapters, such as Connections, Channels, exchanges, queue, and so on. The first use of the reader, can be opened to see what the content, familiar with the RABBITMQ Server service side.Click the

Spring Boot Implementation RESTful WebService server example 1.Spring Boot ConfigurationApplication.yml Spring: Profiles: active:dev MVC: favicon: enabled:false DataSource: Driver-class-name:com.mysql.jdbc

1.Spring Boot ConfigurationsApplication.ymlSpring: Profiles: active:dev MVC: favicon: enabled:false DataSource: Driver-class-name:com.mysql.jdbc.driver Url:jdbc:mysql://localhost:3306/wit_neptune? Createdatabaseifnotexist=trueuseunicode=truecharacterencoding=utf-8zerodatetimebehavior= Converttonulltransformedbitisboolean=true username:root password:123456 JPA: Hibernate: d

Spring boot thymeleaf Template engine simplest output exampleThe controller code is as follows:@GetMapping (value = "/test")Public String test (model model) { List Boy.add (New Boy ("XX", 11)); Boy.add (New boy ("yy", 22)); Boy.add (New Boy ("ZZ", 33)); Model.addattribute ("Boy", boy); return "hellohtml";}The template code is as follows:

()throwsException {Sqlsessionfactorybean Sessionfactorybean=NewSqlsessionfactorybean (); Sessionfactorybean.setdatasource (Primarydatasource); returnSessionfactorybean.getobject (); }} //class Databaseconfig2.3 Log Library ConfigurationImportJavax.sql.DataSource;Importorg.apache.ibatis.session.SqlSessionFactory;ImportOrg.mybatis.spring.SqlSessionFactoryBean;ImportOrg.mybatis.spring.annotation.MapperScan;Importorg.springframework.beans.factory.annotation.Autowired;ImportOrg.springframewor