SpringBoot入门程序-web

╰+哭是因爲堅強的太久メ 2021-12-17 15:57 191阅读 0赞

SpringBoot来简化Spring应用开发，约定大于配置，去繁从简，just run就能 创建一个独立的产品级别的应用。  
优点：

1.  快速创建独立运行的Spring项目以及与主流框架集成。
2.  使用嵌入式的Servlet容器（tomcat jboss）应用无需打成WAR包（jar）
3.  Starters（场景启动器）自动依赖于版本控制（SpringBoot中有n多个starters）
4.  大量的自动配置，简化开发，也可修改默认值。
5.  无需配置大量的XML，无代码生成，开箱即用。

> **1.pom.xml**

起步依赖

<parent>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-starter-parent</artifactId>
    	<version>1.4.0.RELEASE</version>
    </parent>

WEB

<dependencies>
    	<dependency>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-web</artifactId>
    	</dependency>
    </dependencies>

JDK 版本

弄完依赖就是下面一堆的jar包  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzI1NDkwNw_size_16_color_FFFFFF_t_70]  
自带tomcat容器。非常的方便。

> **2.编写启动类**

// 标识SpringBoot
    @SpringBootApplication
    public class Application { 
    	public static void main(String[] args) { 
    		SpringApplication.run(Application.class, args);
    	}
    }

编写Controller

@RestController
    public class HelloWorldController { 
    	@RequestMapping("/info")
    	public String info() { 
    		return "Hello World";
    	}
    }

> **3.自定义默认配置。编写application.properties（固定名称）**

// tomcat默认端口
    server.port=8088
    // 自定义属性
    url=http://www.baidu.com

Environment类

@RestController
    public class HelloWorldController { 
    	// 这个类是读取配置文件中属性的类
    	@Autowired
    	private Environment environment;
    	@RequestMapping("/info")
    	public String info() { 
    		return "Hello World"+environment.getProperty("url");
    	}
    }

> **4.热部署：代码改完不需要重启就会自动部署**

<dependency>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-devtools</artifactId>
    </dependency>

#### SpringBoot配置文件application.properties ####

#########COMMON SPRING BOOT PROPERTIES
    ######========CORE PROPERTIES===========
    #Spring Config (ConfigFileApplicationListener)
    spring.config.name= # config file name (default to 'application')
    spring.config.location= # location of config file
    
    #Profiles
    spring.profiles= # comma list of active profiles
    
    #Application Settings (SpringApplication)
    spring.main.sources=
    spring.main.web-environment= # detect by default
    spring.main.show-banner=true
    spring.main....= # see class for all properties
    
    #Logging
    logging.path=/var/logs
    logging.file=myapp.log
    logging.config=
    
    #Identity (ContextIdApplicationContextInitializer)
    spring.application.name=
    spring.application.index=
    
    #Embedded Sever Configuration (ServerProperties)
    server.port=8080
    server.address= # bind to a specific NIC
    server.session-timeout= # session timeout in seconds
    server.context-path= # the context path, defaults to '/'
    server.servlet-path= # the servlet path, defaults to '/'
    server.tomcat.access-log-pattern= # log pattern of the access log
    server.tomcat.access-log-enabled=false # is access logging enabled
    server.tomcat.protocol-header=x-forwarded-proto # ssl forward headers
    server.tomcat.remote-ip-header=x-forwarded-for
    server.tomcat.basedir=/tmp # base dir (usually not needed, defaults to tmp)
    server.tomcat.background-processor-delay=30; # in seconds
    server.tomcat.max-threads = 0 # number of threads in protocol handler
    server.tomcat.uri-encoding = UTF-8 # character encoding to use for URL decoding
    
    #Spring MVC (HttpMapperProperties)
    http.mappers.json-pretty-print=false # pretty print JSON
    http.mappers.json-sort-keys=false # sort keys
    spring.mvc.locale= # set fixed locale, e.g. enUK
    spring.mvc.date-format= # set fixed date format, e.g. dd/MM/yyyy
    spring.mvc.message-codes-resolver-format= # PREFIXERRORCODE / POSTFIXERROR_CODE
    spring.view.prefix= # MVC view prefix
    spring.view.suffix= # ... and suffix
    spring.resources.cache-period= # cache timeouts in headers sent to browser
    spring.resources.add-mappings=true # if default mappings should be added
    
    #Thymeleaf (ThymeleafAutoConfiguration)
    spring.thymeleaf.prefix=classpath:/templates/
    spring.thymeleaf.suffix=.html
    spring.thymeleaf.mode=HTML5
    spring.thymeleaf.encoding=UTF-8
    spring.thymeleaf.content-type=text/html # ;charset=<encoding> is added
    spring.thymeleaf.cache=true # set to false for hot refresh
    
    #Freemarker (FreeMarkerAutoConfiguration)
    spring.freemarker.allowRequestOverride=false
    spring.freemarker.allowSessionOverride=false
    spring.freemarker.cache=true
    spring.freemarker.checkTemplateLocation=true
    spring.freemarker.contentType=text/html
    spring.freemarker.exposeRequestAttributes=false
    spring.freemarker.exposeSessionAttributes=false
    spring.freemarker.exposeSpringMacroHelpers=false
    spring.freemarker.prefix=
    spring.freemarker.requestContextAttribute=
    spring.freemarker.settings.*=
    spring.freemarker.suffix=.ftl
    spring.freemarker.templateEncoding=UTF-8
    spring.freemarker.templateLoaderPath=classpath:/templates/
    spring.freemarker.viewNames= # whitelist of view names that can be resolved
    
    #Groovy Templates (GroovyTemplateAutoConfiguration)
    spring.groovy.template.allowRequestOverride=false
    spring.groovy.template.allowSessionOverride=false
    spring.groovy.template.cache=true
    spring.groovy.template.configuration.*= # See Groovy's TemplateConfiguration
    spring.groovy.template.contentType=text/html
    spring.groovy.template.prefix=classpath:/templates/
    spring.groovy.template.suffix=.tpl
    spring.groovy.template.templateEncoding=UTF-8
    spring.groovy.template.viewNames= # whitelist of view names that can be resolved
    
    #Velocity templates (VelocityAutoConfiguration)
    spring.velocity.allowRequestOverride=false
    spring.velocity.allowSessionOverride=false
    spring.velocity.cache=true
    spring.velocity.checkTemplateLocation=true
    spring.velocity.contentType=text/html
    spring.velocity.dateToolAttribute=
    spring.velocity.exposeRequestAttributes=false
    spring.velocity.exposeSessionAttributes=false
    spring.velocity.exposeSpringMacroHelpers=false
    spring.velocity.numberToolAttribute=
    spring.velocity.prefix=
    spring.velocity.properties.*=
    spring.velocity.requestContextAttribute=
    spring.velocity.resourceLoaderPath=classpath:/templates/
    spring.velocity.suffix=.vm
    spring.velocity.templateEncoding=UTF-8
    spring.velocity.viewNames= # whitelist of view names that can be resolved
    
    #Internationalization (MessageSourceAutoConfiguration)
    spring.messages.basename=messages
    spring.messages.cacheSeconds=-1
    spring.messages.encoding=UTF-8
    
    #Security (SecurityProperties)
    security.user.name=user # login username
    security.user.password= # login password
    security.user.role=USER # role assigned to the user
    security.require-ssl=false # advanced settings ...
    security.enable-csrf=false
    security.basic.enabled=true
    security.basic.realm=Spring
    security.basic.path= # //**
    security.headers.xss=false
    security.headers.cache=false
    security.headers.frame=false
    security.headers.contentType=false
    security.headers.hsts=all # none / domain / all
    security.sessions=stateless # always / never / if_required / stateless
    security.ignored=false
    
    #Datasource (DataSourceAutoConfiguration & DataSourceProperties)
    spring.datasource.name= # name of the data source
    spring.datasource.initialize=true # populate using data.sql
    spring.datasource.schema= # a schema (DDL) script resource reference
    spring.datasource.data= # a data (DML) script resource reference
    spring.datasource.platform= # the platform to use in the schema resource (schema-${ platform}.sql)
    spring.datasource.continueOnError=false # continue even if can't be initialized
    spring.datasource.separator=; # statement separator in SQL initialization scripts
    spring.datasource.driverClassName= # JDBC Settings...
    spring.datasource.url=
    spring.datasource.username=
    spring.datasource.password=
    spring.datasource.max-active=100 # Advanced configuration...
    spring.datasource.max-idle=8
    spring.datasource.min-idle=8
    spring.datasource.initial-size=10
    spring.datasource.validation-query=
    spring.datasource.test-on-borrow=false
    spring.datasource.test-on-return=false
    spring.datasource.test-while-idle=
    spring.datasource.time-between-eviction-runs-millis=
    spring.datasource.min-evictable-idle-time-millis=
    spring.datasource.max-wait-millis=
    
    #Mongodb (MongoProperties)
    spring.data.mongodb.host= # the db host
    spring.data.mongodb.port=27017 # the connection port (defaults to 27107)
    spring.data.mongodb.uri=mongodb://localhost/test # connection URL
    spring.data.mongo.repositories.enabled=true # if spring data repository support is enabled
    
    #Jpa (JpaBaseConfiguration, HibernateJpaAutoConfiguration)
    spring.jpa.properties.*= # properties to set on the JPA connection
    spring.jpa.openInView=true
    spring.jpa.show-sql=true
    spring.jpa.database-platform=
    spring.jpa.database=
    spring.jpa.generate-ddl=false # ignored by Hibernate, might be useful for other vendors
    spring.jpa.hibernate.naming-strategy= # naming classname
    spring.jpa.hibernate.ddl-auto= # defaults to create-drop for embedded dbs
    spring.data.jpa.repositories.enabled=true # if spring data repository support is enabled
    
    #Solr (SolrProperties})
    spring.data.solr.host=http://127.0.0.1:8983/solr
    spring.data.solr.zkHost=
    spring.data.solr.repositories.enabled=true # if spring data repository support is enabled
    
    #Elasticsearch (ElasticsearchProperties})
    spring.data.elasticsearch.cluster-name= # The cluster name (defaults to elasticsearch)
    spring.data.elasticsearch.cluster-nodes= # The address(es) of the server node (comma-separated; if not specified starts a client node)
    spring.data.elasticsearch.local=true # if local mode should be used with client nodes
    spring.data.elasticsearch.repositories.enabled=true # if spring data repository support is enabled
    
    #Flyway (FlywayProperties)
    flyway.locations=classpath:db/migrations # locations of migrations scripts
    flyway.schemas= # schemas to update
    flyway.initVersion= 1 # version to start migration
    flyway.prefix=V
    flyway.suffix=.sql
    flyway.enabled=true
    flyway.url= # JDBC url if you want Flyway to create its own DataSource
    flyway.user= # JDBC username if you want Flyway to create its own DataSource
    flyway.password= # JDBC password if you want Flyway to create its own DataSource
    
    #Liquibase (LiquibaseProperties)
    liquibase.change-log=classpath:/db/changelog/db.changelog-master.yaml
    liquibase.contexts= # runtime contexts to use
    liquibase.default-schema= # default database schema to use
    liquibase.drop-first=false
    liquibase.enabled=true
    
    #Jmx
    spring.jmx.enabled=true # Expose MBeans from Spring
    
    #Abbit (RabbitProperties)
    spring.rabbitmq.host= # connection host
    spring.rabbitmq.port= # connection port
    spring.rabbitmq.addresses= # connection addresses (e.g. myhost:9999,otherhost:1111)
    spring.rabbitmq.username= # login user
    spring.rabbitmq.password= # login password
    spring.rabbitmq.virtualhost=
    spring.rabbitmq.dynamic=
    
    #Redis (RedisProperties)
    spring.redis.host=localhost # server host
    spring.redis.password= # server password
    spring.redis.port=6379 # connection port
    spring.redis.pool.max-idle=8 # pool settings ...
    spring.redis.pool.min-idle=0
    spring.redis.pool.max-active=8
    spring.redis.pool.max-wait=-1
    
    #ActiveMQ (ActiveMQProperties)
    spring.activemq.broker-url=tcp://localhost:61616 # connection URL
    spring.activemq.user=
    spring.activemq.password=
    spring.activemq.in-memory=true # broker kind to create if no broker-url is specified
    spring.activemq.pooled=false
    
    #HornetQ (HornetQProperties)
    spring.hornetq.mode= # connection mode (native, embedded)
    spring.hornetq.host=localhost # hornetQ host (native mode)
    spring.hornetq.port=5445 # hornetQ port (native mode)
    spring.hornetq.embedded.enabled=true # if the embedded server is enabled (needs hornetq-jms-server.jar)
    spring.hornetq.embedded.serverId= # auto-generated id of the embedded server (integer)
    spring.hornetq.embedded.persistent=false # message persistence
    spring.hornetq.embedded.data-directory= # location of data content (when persistence is enabled)
    spring.hornetq.embedded.queues= # comma separate queues to create on startup
    spring.hornetq.embedded.topics= # comma separate topics to create on startup
    spring.hornetq.embedded.cluster-password= # customer password (randomly generated by default)
    
    #Jms (JmsProperties)
    spring.jms.pub-sub-domain= # false for queue (default), true for topic
    
    #SPRING BATCH (BatchDatabaseInitializer)
    spring.batch.job.names=job1,job2
    spring.batch.job.enabled=true
    spring.batch.initializer.enabled=true
    spring.batch.schema= # batch schema to load
    
    #aop
    spring.aop.auto=
    spring.aop.proxy-target-class=
    
    #File encoding  (FileEncodingApplicationListener)
    spring.mandatory-file-encoding=false
    
    #Spring social (SocialWebAutoConfiguration)
    spring.social.auto-connection-views=true # Set to true for default connection views or false if you provide your own
    
    #Spring social facebook (FacebookAutoConfiguration)
    spring.social.facebook.app-id= # your application's Facebook App ID
    spring.social.facebook.app-secret= # your application's Facebook App Secret
    
    #Spring social linkedin (LinkedInAutoConfiguration)
    spring.social.linkedin.app-id= # your application's LinkedIn App ID
    spring.social.linkedin.app-secret= # your application's LinkedIn App Secret
    
    #Spring social twitter (TwitterAutoConfiguration)
    spring.social.twitter.app-id= # your application's Twitter App ID
    spring.social.twitter.app-secret= # your application's Twitter App Secret
    
    #SPRING MOBILE SITE PREFERENCE (SitePreferenceAutoConfiguration)
    spring.mobile.sitepreference.enabled=true # enabled by default
    
    #SPRING MOBILE DEVICE VIEWS (DeviceDelegatingViewResolverAutoConfiguration)
    spring.mobile.devicedelegatingviewresolver.enabled=true # disabled by default
    spring.mobile.devicedelegatingviewresolver.normalPrefix=
    spring.mobile.devicedelegatingviewresolver.normalSuffix=
    spring.mobile.devicedelegatingviewresolver.mobilePrefix=mobile/
    spring.mobile.devicedelegatingviewresolver.mobileSuffix=
    spring.mobile.devicedelegatingviewresolver.tabletPrefix=tablet/
    spring.mobile.devicedelegatingviewresolver.tabletSuffix=
    
    ######========ACTUATOR PROPERTIES===========
    
    #MANAGEMENT HTTP SERVER (ManagementServerProperties)
    management.port= # defaults to 'server.port'
    management.address= # bind to a specific NIC
    management.contextPath= # default to '/'
    
    #ENDPOINTS (AbstractEndpoint subclasses)
    endpoints.autoconfig.id=autoconfig
    endpoints.autoconfig.sensitive=true
    endpoints.autoconfig.enabled=true
    endpoints.beans.id=beans
    endpoints.beans.sensitive=true
    endpoints.beans.enabled=true
    endpoints.configprops.id=configprops
    endpoints.configprops.sensitive=true
    endpoints.configprops.enabled=true
    endpoints.configprops.keys-to-sanitize=password,secret
    endpoints.dump.id=dump
    endpoints.dump.sensitive=true
    endpoints.dump.enabled=true
    endpoints.env.id=env
    endpoints.env.sensitive=true
    endpoints.env.enabled=true
    endpoints.health.id=health
    endpoints.health.sensitive=false
    endpoints.health.enabled=true
    endpoints.info.id=info
    endpoints.info.sensitive=false
    endpoints.info.enabled=true
    endpoints.metrics.id=metrics
    endpoints.metrics.sensitive=true
    endpoints.metrics.enabled=true
    endpoints.shutdown.id=shutdown
    endpoints.shutdown.sensitive=true
    endpoints.shutdown.enabled=false
    endpoints.trace.id=trace
    endpoints.trace.sensitive=true
    endpoints.trace.enabled=true
    
    #MVC ONLY ENDPOINTS
    endpoints.jolokia.path=jolokia
    endpoints.jolokia.sensitive=true
    endpoints.jolokia.enabled=true # when using Jolokia
    endpoints.error.path=/error
    
    #JMX ENDPOINT (EndpointMBeanExportProperties)
    endpoints.jmx.enabled=true
    endpoints.jmx.domain= # the JMX domain, defaults to 'org.springboot'
    endpoints.jmx.unique-names=false
    endpoints.jmx.enabled=true
    endpoints.jmx.staticNames=
    
    #JOLOKIA (JolokiaProperties)
    jolokia.config.*= # See Jolokia manual
    
    #REMOTE SHELL
    shell.auth=simple # jaas, key, simple, spring
    shell.command-refresh-interval=-1
    shell.command-path-pattern= # classpath:/commands/, classpath:/crash/commands/
    shell.config-path-patterns= # classpath:/crash/
    shell.disabled-plugins=false # don't expose plugins
    shell.ssh.enabled= # ssh settings ...
    shell.ssh.keyPath=
    shell.ssh.port=
    shell.telnet.enabled= # telnet settings ...
    shell.telnet.port=
    shell.auth.jaas.domain= # authentication settings ...
    shell.auth.key.path=
    shell.auth.simple.user.name=
    shell.auth.simple.user.password=
    shell.auth.spring.roles=
    
    #GIT INFO
    spring.git.properties= # resource ref to generated git info properties file

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