spring boot database example

; @SpringBootApplication @RestController public class application { @RequestMapping ( "/") public String greeting () {return "Hello world!";} public static void main (string[] args) {Springapplication.run ( Application.class, args); }} Run app: mvn spring-boot:run or run Main () method in the IDE, Access http://localhost:8080 in the browser, Hello world! appears on the page. With just more than 10 lines of Java code and a Hello World app ru

{private String username; private String password; //getter ...} public Integer geport () {return Span class= "Hljs-keyword" >this.port; } public Jdbc getjdbc () {return Span class= "Hljs-keyword" >THIS.JDBC; }} 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 jdbcThe properties that begin are injected in

Previously wrote some auxiliary work related to how spring boot uses AOP. Here continue to the topic, how to reduce the spring Boot optimistic lock plus lock error situation (basic can be resolved).1. Package dependencies SPRING-

Configuration.Role Management: Role Menu permission assignment, set role to divide data range permissions by agency.Rights Management: Maintenance of some of the more fixed data used in the system.Menu Management: Configure the System menu, Operation permissions, button permission identification, and so on.Department Management: Configure the system organization, tree structure display, can adjust the subordinate.Log management: The normal operation of the system log records and queries, system

system operator, this function mainly completes the system User Configuration.Role Management: Role Menu permission assignment, set role to divide data range permissions by agency.Rights Management: Maintenance of some of the more fixed data used in the system.Menu Management: Configure the System menu, Operation permissions, button permission identification, and so on.Department Management: Configure the system organization, tree structure display, can adjust the subordinate.Log management: Th

function mainly completes the system User Configuration.Role Management: Role Menu permission assignment, set role to divide data range permissions by agency.Rights Management: Maintenance of some of the more fixed data used in the system.Menu Management: Configure the System menu, Operation permissions, button permission identification, and so on.Department Management: Configure the system organization, tree structure display, can adjust the subordinate.Log management: The normal operation of

Brief introductionDid you retreat from the complex configuration when you first contacted and learned the spring framework for the 1th time? When you use the Spring framework for Nth times, do you feel bored with a bunch of sticky configurations? Try spring boot to make it easier and faster to build your

="]60mb%{(o2a () v{13i7jf_4.png "alt=" Wkiom1k4_0txrdomaadczc7n2tw571.png-wh_50 "/>The default name is example,Let's change it a little bit and change it to demo001650) this.width=650; "Src=" https://s2.51cto.com/wyfs02/M02/98/3C/wKioL1k4_83CU5mcAAEvg3pU1VM053.png-wh_500x0-wm_ 3-wmp_4-s_1563062793.png "title=" Rrra$m ' vmos1@y9kb (PW (2o.png "alt=" wkiol1k4_83cu5mcaaevg3pu1vm053.png-wh_50 "/ >Interface I have changed, may not be the same as the defaul

Spring Boot Spring Boot is a new framework provided by the pivotal team designed to simplify the initial setup and development of new spring applications. The framework uses a specific approach to configuration, which eliminates the need for developers to define boilerplate

various types of simple additions and deletions, spring data provides a direct query based on the proxy method, nothing needs to do, the only need to write interfaces, naming methods, this part is too convenient, and simple query to solve almost 80% of the problem. This part is relatively simple, do not repeat, refer to the use of the Daquan section. Because of the implementation of the template DAO, so that the DAO layer of these concrete entities h

The code in the previous section is a starter program for Spring-boot and a program on the official documentation. This section introduces the way in which Spring-boot official documentation is recommended to develop the code and introduces our call to the service layer in spring