• Spring boot day1学习


    1. 先安装Idea。。。

    2. 配置Maven。。。仓库。:https://blog.csdn.net/github_37759996/article/details/90748461

    3. 新建Project,创建HelloWorld。

    Spring boot配置:(springboot与maven版本对应:https://www.cnblogs.com/oumi/p/9241424.html)(springboot与jdk版本对应关系:https://www.cnblogs.com/harrychinese/p/jdk_and_springboot_version.html  https://blog.csdn.net/wj197927/article/details/79563081

        <parent>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-parent</artifactId>
          <version>2.3.1.RELEASE</version>
        </parent>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
        </dependencies>

    >>写Java接口,返回json格式的数据(REST)

    >>发布服务

    >>监控服务器运行状态,当前的CPU,和访问人数:java 服务器监控

    开发成功了怎么部署呢?

    >>SpringBoot2.3.1参考文档:https://docs.spring.io/spring-boot/docs/2.3.1.RELEASE/reference/htmlsingle/

    >>Spring Boot Github:https://github.com/spring-projects/spring-boot/

    >>官网:https://spring.io/projects/spring-boot/

    Spring Boot的优点:

     添加以下配置代码可以将我们的应用打包成一个可独立运行的jar包。

        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>

    然后在jar包所在目录执行

    >>类似的服务:NodeJS server.js、Live Server也可以做后端吗?为什么不如Python、Java做后端好

    打包之后的应用包含的jar包。。

    可以看到里面有嵌入式的tomcat。。为什么没有jetty呢?

    SpringBoot的依赖:

    SpringBoot启动器Starters

    Table 1. Spring Boot application starters
    NameDescription

    spring-boot-starter

    Core starter, including auto-configuration support, logging and YAML

    spring-boot-starter-activemq

    Starter for JMS messaging using Apache ActiveMQ

    spring-boot-starter-amqp

    Starter for using Spring AMQP and Rabbit MQ

    spring-boot-starter-aop

    Starter for aspect-oriented programming with Spring AOP and AspectJ

    spring-boot-starter-artemis

    Starter for JMS messaging using Apache Artemis

    spring-boot-starter-batch

    Starter for using Spring Batch

    spring-boot-starter-cache

    Starter for using Spring Framework’s caching support

    spring-boot-starter-data-cassandra

    Starter for using Cassandra distributed database and Spring Data Cassandra

    spring-boot-starter-data-cassandra-reactive

    Starter for using Cassandra distributed database and Spring Data Cassandra Reactive

    spring-boot-starter-data-couchbase

    Starter for using Couchbase document-oriented database and Spring Data Couchbase

    spring-boot-starter-data-couchbase-reactive

    Starter for using Couchbase document-oriented database and Spring Data Couchbase Reactive

    spring-boot-starter-data-elasticsearch

    Starter for using Elasticsearch search and analytics engine and Spring Data Elasticsearch

    spring-boot-starter-data-jdbc

    Starter for using Spring Data JDBC

    spring-boot-starter-data-jpa

    Starter for using Spring Data JPA with Hibernate

    spring-boot-starter-data-ldap

    Starter for using Spring Data LDAP

    spring-boot-starter-data-mongodb

    Starter for using MongoDB document-oriented database and Spring Data MongoDB

    spring-boot-starter-data-mongodb-reactive

    Starter for using MongoDB document-oriented database and Spring Data MongoDB Reactive

    spring-boot-starter-data-neo4j

    Starter for using Neo4j graph database and Spring Data Neo4j

    spring-boot-starter-data-r2dbc

    Starter for using Spring Data R2DBC

    spring-boot-starter-data-redis

    Starter for using Redis key-value data store with Spring Data Redis and the Lettuce client

    spring-boot-starter-data-redis-reactive

    Starter for using Redis key-value data store with Spring Data Redis reactive and the Lettuce client

    spring-boot-starter-data-rest

    Starter for exposing Spring Data repositories over REST using Spring Data REST

    spring-boot-starter-data-solr

    Starter for using the Apache Solr search platform with Spring Data Solr

    spring-boot-starter-freemarker

    Starter for building MVC web applications using FreeMarker views

    spring-boot-starter-groovy-templates

    Starter for building MVC web applications using Groovy Templates views

    spring-boot-starter-hateoas

    Starter for building hypermedia-based RESTful web application with Spring MVC and Spring HATEOAS

    spring-boot-starter-integration

    Starter for using Spring Integration

    spring-boot-starter-jdbc

    Starter for using JDBC with the HikariCP connection pool

    spring-boot-starter-jersey

    Starter for building RESTful web applications using JAX-RS and Jersey. An alternative to spring-boot-starter-web

    spring-boot-starter-jooq

    Starter for using jOOQ to access SQL databases. An alternative to spring-boot-starter-data-jpa or spring-boot-starter-jdbc

    spring-boot-starter-json

    Starter for reading and writing json

    spring-boot-starter-jta-atomikos

    Starter for JTA transactions using Atomikos

    spring-boot-starter-jta-bitronix

    Starter for JTA transactions using Bitronix. Deprecated since 2.3.0

    spring-boot-starter-mail

    Starter for using Java Mail and Spring Framework’s email sending support

    spring-boot-starter-mustache

    Starter for building web applications using Mustache views

    spring-boot-starter-oauth2-client

    Starter for using Spring Security’s OAuth2/OpenID Connect client features

    spring-boot-starter-oauth2-resource-server

    Starter for using Spring Security’s OAuth2 resource server features

    spring-boot-starter-quartz

    Starter for using the Quartz scheduler

    spring-boot-starter-rsocket

    Starter for building RSocket clients and servers

    spring-boot-starter-security

    Starter for using Spring Security

    spring-boot-starter-test

    Starter for testing Spring Boot applications with libraries including JUnit, Hamcrest and Mockito

    spring-boot-starter-thymeleaf

    Starter for building MVC web applications using Thymeleaf views

    spring-boot-starter-validation

    Starter for using Java Bean Validation with Hibernate Validator

    spring-boot-starter-web

    Starter for building web, including RESTful, applications using Spring MVC. Uses Tomcat as the default embedded container

    spring-boot-starter-web-services

    Starter for using Spring Web Services

    spring-boot-starter-webflux

    Starter for building WebFlux applications using Spring Framework’s Reactive Web support

    spring-boot-starter-websocket

    Starter for building WebSocket applications using Spring Framework’s WebSocket support

    https://docs.spring.io/spring-boot/docs/2.3.1.RELEASE/reference/htmlsingle/#using-boot-starter

    In addition to the application starters, the following starters can be used to add production ready features:

    Table 2. Spring Boot production starters
    NameDescription

    spring-boot-starter-actuator

    Starter for using Spring Boot’s Actuator which provides production ready features to help you monitor and manage your application

    Finally, Spring Boot also includes the following starters that can be used if you want to exclude or swap specific technical facets:

    Table 3. Spring Boot technical starters
    NameDescription

    spring-boot-starter-jetty

    Starter for using Jetty as the embedded servlet container. An alternative to spring-boot-starter-tomcat

    spring-boot-starter-log4j2

    Starter for using Log4j2 for logging. An alternative to spring-boot-starter-logging

    spring-boot-starter-logging

    Starter for logging using Logback. Default logging starter

    spring-boot-starter-reactor-netty

    Starter for using Reactor Netty as the embedded reactive HTTP server.

    spring-boot-starter-tomcat

    Starter for using Tomcat as the embedded servlet container. Default servlet container starter used by spring-boot-starter-web

    spring-boot-starter-undertow

    Starter for using Undertow as the embedded servlet container. An alternative to spring-boot-starter-tomcat

      For a list of additional community contributed starters, see the README file in the spring-boot-starters module on GitHub.

    Spring Boot将所有的功能场景都抽取出来,做成一个个的starters(启动器),只需要在项目里面引入这些starters,相关场景的所有依赖都会导入进来。要用什么功能就导入什么场景的启动器

    ArcGIS Server REST:

    标注SpringBootApplication在某个类之上说明这个类是SpringBoot的主配置类,SpringBoot就应该运行这个类的main方法来启动SpringBoot应用;

    HelloWorld细节-自动配置:

    以前我们需要配置的东西,Spring Boot帮我们自动配置;@EnableAutoConfiguration告诉SpringBoot开启自动配置功能;这样自动配置才能生效;它将SpringBootApplication类所在包及下面所有子包里面的所有组件扫描到Spring容器;

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  • 原文地址:https://www.cnblogs.com/2008nmj/p/14174600.html
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