spring boot log4j2 example

Logs, usually not presented separately as a function in the requirements phase, or in the details of the product scenario. However, this does not affect its important position in any system at all.In order to ensure that the service is highly available, the problem must be solved even, the problem must be rapid, so the production environment once the problem, the early warning system through the mail, text messages and even the way the phone to implement multidimensional bombing mode, to ensure

. For example: Spring-boot-starter-web will automatically assemble Tomcat containers , and the configuration of the Web app is automatically read from application.properties, such as: Server.port, or if the application.properties does not have the relevant parameters configured, the default configuration information, such as: 8080.

Spring Boot creates beans using Java code and registers them to Spring. From Spring3.0, a new method is added to configure Bean Definition, which is to configure Bean Definition through Java Code.The two configuration methods differ from Xml and Annotation: The first two Xml and Annotation configuration methods are pre-defined, that is, after developers use the X

specified by the Spring.profiles.active property is added after those configured files through the Springapplication API, so the priority is higher. If you specify any files in the spring.config.location, the specific profile version of those files will not be considered. If you also want to use a specific profile attribute, use the table of contents in Spring.config.location. 24.5 placeholders in Properties When the values in Application.properties are used, they are filtered through the exist

configuration. about paging Plug-ins and general Mapper integration The paging plugin as an example of Plug-ins is available in the above code. The General mapper configuration is the actual configuration of the mapperscannerconfigurer when the use of Tk.mybatis.spring.mapper.MapperScannerConfigurer can be configured to use properties. the Spring boot integrated

packages are provided by the specific Spring Boot: \repository\org\springframework\boot\spring-boot-dependencies\ 2.0.1.release\spring-boot-dependencies-2.0.1.release.pom file to view,

Spring Boot + Gradle + Websocket build push service Introduction Spring boot after a long period of development, has gradually become my first choice of microservices development, this article to build a push micro-service as an example, demonstrates how to use

following instruction to output the corresponding version to verify the installation success, the code is as follows:Successful output will appear in the console:Spring Boot CLI Hello World caseAfter installation, it is convenient to learn to use it under the Spring Boot CLI. For example, we learn how to write an

-annotation" > @RequestMapping ( "/") public String greeting () { return " Hello world! "; } public static void main (string[] args) {} /span> 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 running correctly, what exactly does this code do? We are from the entr