一、环境

1.1、Idea 2020.1

1.2、JDK 1.8

二、目的

学习Spring Boot Banner自定义的操作
 

三、步骤

3.1、点击File -> New Project -> Spring Initializer,点击next

3.2、在对应地方修改自己的项目信息

 

3.3、选择Web依赖,选中Spring Web。可以选择Spring Boot版本,本次默认为2.2.6,点击Next

3.4、编辑工程名和项目路径,确定后点击Finish完成

3.5、项目结构

四、自定义Spring Boot Banner

4.1、方式一:默认配置

在resources资源包下新建banner.txt,输入自定义内容。
.__           .__  .__                               .__       .___
| |__ ____ | | | | ____ __ _ _____________| | __| _/
| | _/ __ | | | | / _ / / / _ _ __ | / __ |
| Y ___/| |_| |_( <_> ) ( <_> ) | / |__/ /_/ |
|___| /___ >____/____/____/ /_/ ____/|__| |____/____ |
/ / / spring-boot.version : ${spring-boot.version}
spring-boot.formatted-version :${spring-boot.formatted-version}
启动程序后查看console输出
"C:Program FilesJavajdk1.8.0_221binjava.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:D:ProgramsJetBrainsIntelliJ IDEAlibidea_rt.jar=3016:D:ProgramsJetBrainsIntelliJ IDEAbin" -Dfile.encoding=UTF-8 -classpath "C:Program FilesJavajdk1.8.0_221jrelibcharsets.jar;C:Program FilesJavajdk1.8.0_221jrelibdeploy.jar;C:Program FilesJavajdk1.8.0_221jrelibextaccess-bridge-64.jar;C:Program FilesJavajdk1.8.0_221jrelibextcldrdata.jar;C:Program FilesJavajdk1.8.0_221jrelibextdnsns.jar;C:Program FilesJavajdk1.8.0_221jrelibextjaccess.jar;C:Program FilesJavajdk1.8.0_221jrelibextjfxrt.jar;C:Program FilesJavajdk1.8.0_221jrelibextlocaledata.jar;C:Program FilesJavajdk1.8.0_221jrelibextnashorn.jar;C:Program FilesJavajdk1.8.0_221jrelibextsunec.jar;C:Program FilesJavajdk1.8.0_221jrelibextsunjce_provider.jar;C:Program FilesJavajdk1.8.0_221jrelibextsunmscapi.jar;C:Program FilesJavajdk1.8.0_221jrelibextsunpkcs11.jar;C:Program FilesJavajdk1.8.0_221jrelibextzipfs.jar;C:Program FilesJavajdk1.8.0_221jrelibjavaws.jar;C:Program FilesJavajdk1.8.0_221jrelibjce.jar;C:Program FilesJavajdk1.8.0_221jrelibjfr.jar;C:Program FilesJavajdk1.8.0_221jrelibjfxswt.jar;C:Program FilesJavajdk1.8.0_221jrelibjsse.jar;C:Program FilesJavajdk1.8.0_221jrelibmanagement-agent.jar;C:Program FilesJavajdk1.8.0_221jrelibplugin.jar;C:Program FilesJavajdk1.8.0_221jrelibresources.jar;C:Program FilesJavajdk1.8.0_221jrelibrt.jar;D:WorkSpaceIdeaouyushanouyushan-spring-boot-samplesspring-boot-bannertargetclasses;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-web2.2.6.RELEASEspring-boot-starter-web-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter2.2.6.RELEASEspring-boot-starter-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot2.2.6.RELEASEspring-boot-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-autoconfigure2.2.6.RELEASEspring-boot-autoconfigure-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-logging2.2.6.RELEASEspring-boot-starter-logging-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositorychqoslogbacklogback-classic1.2.3logback-classic-1.2.3.jar;D:Programsapachemavenapache-maven-repositorychqoslogbacklogback-core1.2.3logback-core-1.2.3.jar;D:Programsapachemavenapache-maven-repositoryorgapachelogginglog4jlog4j-to-slf4j2.12.1log4j-to-slf4j-2.12.1.jar;D:Programsapachemavenapache-maven-repositoryorgapachelogginglog4jlog4j-api2.12.1log4j-api-2.12.1.jar;D:Programsapachemavenapache-maven-repositoryorgslf4jjul-to-slf4j1.7.30jul-to-slf4j-1.7.30.jar;D:Programsapachemavenapache-maven-repositoryjakartaannotationjakarta.annotation-api1.3.5jakarta.annotation-api-1.3.5.jar;D:Programsapachemavenapache-maven-repositoryorgyamlsnakeyaml1.25snakeyaml-1.25.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-json2.2.6.RELEASEspring-boot-starter-json-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksoncorejackson-databind2.10.3jackson-databind-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksoncorejackson-annotations2.10.3jackson-annotations-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksoncorejackson-core2.10.3jackson-core-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksondatatypejackson-datatype-jdk82.10.3jackson-datatype-jdk8-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksondatatypejackson-datatype-jsr3102.10.3jackson-datatype-jsr310-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksonmodulejackson-module-parameter-names2.10.3jackson-module-parameter-names-2.10.3.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-tomcat2.2.6.RELEASEspring-boot-starter-tomcat-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgapachetomcatembedtomcat-embed-core9.0.33tomcat-embed-core-9.0.33.jar;D:Programsapachemavenapache-maven-repositoryorgapachetomcatembedtomcat-embed-el9.0.33tomcat-embed-el-9.0.33.jar;D:Programsapachemavenapache-maven-repositoryorgapachetomcatembedtomcat-embed-websocket9.0.33tomcat-embed-websocket-9.0.33.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-validation2.2.6.RELEASEspring-boot-starter-validation-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryjakartavalidationjakarta.validation-api2.0.2jakarta.validation-api-2.0.2.jar;D:Programsapachemavenapache-maven-repositoryorghibernatevalidatorhibernate-validator6.0.18.Finalhibernate-validator-6.0.18.Final.jar;D:Programsapachemavenapache-maven-repositoryorgjbossloggingjboss-logging3.4.1.Finaljboss-logging-3.4.1.Final.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmlclassmate1.5.1classmate-1.5.1.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-web5.2.5.RELEASEspring-web-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-beans5.2.5.RELEASEspring-beans-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-webmvc5.2.5.RELEASEspring-webmvc-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-aop5.2.5.RELEASEspring-aop-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-context5.2.5.RELEASEspring-context-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-expression5.2.5.RELEASEspring-expression-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgslf4jslf4j-api1.7.30slf4j-api-1.7.30.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-core5.2.5.RELEASEspring-core-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-jcl5.2.5.RELEASEspring-jcl-5.2.5.RELEASE.jar" org.ouyushan.springboot.banner.SpringBootBannerApplication
.__ .__ .__ .__ .___
| |__ ____ | | | | ____ __ _ _____________| | __| _/
| | _/ __ | | | | / _ / / / _ _ __ | / __ |
| Y ___/| |_| |_( <_> ) ( <_> ) | / |__/ /_/ |
|___| /___ >____/____/____/ /_/ ____/|__| |____/____ |
/ / / spring-boot.version : 2.2.6.RELEASE
spring-boot.formatted-version : (v2.2.6.RELEASE) 2020-04-27 10:37:31.150 INFO 8696 --- [ main] o.o.s.b.SpringBootBannerApplication : Starting SpringBootBannerApplication

4.2、方式二:自定义文本banner配置

在application.properties配置文件中指定
## 指定文本文件位置 spring.banner.location=/txt/banner.txt 
在resourcesz资源包中新建/txt/banner.txt文件,配置内容
.__           .__  .__                               .__       .___
| |__ ____ | | | | ____ __ _ _____________| | __| _/
| | _/ __ | | | | / _ / / / _ _ __ | / __ |
| Y ___/| |_| |_( <_> ) ( <_> ) | / |__/ /_/ |
|___| /___ >____/____/____/ /_/ ____/|__| |____/____ |
/ / / 指定banner位置:resource/txt
spring-boot.version : ${spring-boot.version}
spring-boot.formatted-version :${spring-boot.formatted-version}
启动项目后,console输出如下,此时自定义/txt/banner.txt会覆盖banner.txt
"C:Program FilesJavajdk1.8.0_221binjava.exe" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:3230,suspend=y,server=n -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -javaagent:C:UsersyangyanglleiAppDataLocalJetBrainsIntelliJIdea2020.1captureAgentdebugger-agent.jar -Dfile.encoding=UTF-8 -classpath "C:Program FilesJavajdk1.8.0_221jrelibcharsets.jar;C:Program FilesJavajdk1.8.0_221jrelibdeploy.jar;C:Program FilesJavajdk1.8.0_221jrelibextaccess-bridge-64.jar;C:Program FilesJavajdk1.8.0_221jrelibextcldrdata.jar;C:Program FilesJavajdk1.8.0_221jrelibextdnsns.jar;C:Program FilesJavajdk1.8.0_221jrelibextjaccess.jar;C:Program FilesJavajdk1.8.0_221jrelibextjfxrt.jar;C:Program FilesJavajdk1.8.0_221jrelibextlocaledata.jar;C:Program FilesJavajdk1.8.0_221jrelibextnashorn.jar;C:Program FilesJavajdk1.8.0_221jrelibextsunec.jar;C:Program FilesJavajdk1.8.0_221jrelibextsunjce_provider.jar;C:Program FilesJavajdk1.8.0_221jrelibextsunmscapi.jar;C:Program FilesJavajdk1.8.0_221jrelibextsunpkcs11.jar;C:Program FilesJavajdk1.8.0_221jrelibextzipfs.jar;C:Program FilesJavajdk1.8.0_221jrelibjavaws.jar;C:Program FilesJavajdk1.8.0_221jrelibjce.jar;C:Program FilesJavajdk1.8.0_221jrelibjfr.jar;C:Program FilesJavajdk1.8.0_221jrelibjfxswt.jar;C:Program FilesJavajdk1.8.0_221jrelibjsse.jar;C:Program FilesJavajdk1.8.0_221jrelibmanagement-agent.jar;C:Program FilesJavajdk1.8.0_221jrelibplugin.jar;C:Program FilesJavajdk1.8.0_221jrelibresources.jar;C:Program FilesJavajdk1.8.0_221jrelibrt.jar;D:WorkSpaceIdeaouyushanouyushan-spring-boot-samplesspring-boot-bannertargetclasses;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-web2.2.6.RELEASEspring-boot-starter-web-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter2.2.6.RELEASEspring-boot-starter-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot2.2.6.RELEASEspring-boot-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-autoconfigure2.2.6.RELEASEspring-boot-autoconfigure-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-logging2.2.6.RELEASEspring-boot-starter-logging-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositorychqoslogbacklogback-classic1.2.3logback-classic-1.2.3.jar;D:Programsapachemavenapache-maven-repositorychqoslogbacklogback-core1.2.3logback-core-1.2.3.jar;D:Programsapachemavenapache-maven-repositoryorgapachelogginglog4jlog4j-to-slf4j2.12.1log4j-to-slf4j-2.12.1.jar;D:Programsapachemavenapache-maven-repositoryorgapachelogginglog4jlog4j-api2.12.1log4j-api-2.12.1.jar;D:Programsapachemavenapache-maven-repositoryorgslf4jjul-to-slf4j1.7.30jul-to-slf4j-1.7.30.jar;D:Programsapachemavenapache-maven-repositoryjakartaannotationjakarta.annotation-api1.3.5jakarta.annotation-api-1.3.5.jar;D:Programsapachemavenapache-maven-repositoryorgyamlsnakeyaml1.25snakeyaml-1.25.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-json2.2.6.RELEASEspring-boot-starter-json-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksoncorejackson-databind2.10.3jackson-databind-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksoncorejackson-annotations2.10.3jackson-annotations-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksoncorejackson-core2.10.3jackson-core-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksondatatypejackson-datatype-jdk82.10.3jackson-datatype-jdk8-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksondatatypejackson-datatype-jsr3102.10.3jackson-datatype-jsr310-2.10.3.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmljacksonmodulejackson-module-parameter-names2.10.3jackson-module-parameter-names-2.10.3.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-tomcat2.2.6.RELEASEspring-boot-starter-tomcat-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgapachetomcatembedtomcat-embed-core9.0.33tomcat-embed-core-9.0.33.jar;D:Programsapachemavenapache-maven-repositoryorgapachetomcatembedtomcat-embed-el9.0.33tomcat-embed-el-9.0.33.jar;D:Programsapachemavenapache-maven-repositoryorgapachetomcatembedtomcat-embed-websocket9.0.33tomcat-embed-websocket-9.0.33.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkbootspring-boot-starter-validation2.2.6.RELEASEspring-boot-starter-validation-2.2.6.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryjakartavalidationjakarta.validation-api2.0.2jakarta.validation-api-2.0.2.jar;D:Programsapachemavenapache-maven-repositoryorghibernatevalidatorhibernate-validator6.0.18.Finalhibernate-validator-6.0.18.Final.jar;D:Programsapachemavenapache-maven-repositoryorgjbossloggingjboss-logging3.4.1.Finaljboss-logging-3.4.1.Final.jar;D:Programsapachemavenapache-maven-repositorycomfasterxmlclassmate1.5.1classmate-1.5.1.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-web5.2.5.RELEASEspring-web-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-beans5.2.5.RELEASEspring-beans-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-webmvc5.2.5.RELEASEspring-webmvc-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-aop5.2.5.RELEASEspring-aop-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-context5.2.5.RELEASEspring-context-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-expression5.2.5.RELEASEspring-expression-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgslf4jslf4j-api1.7.30slf4j-api-1.7.30.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-core5.2.5.RELEASEspring-core-5.2.5.RELEASE.jar;D:Programsapachemavenapache-maven-repositoryorgspringframeworkspring-jcl5.2.5.RELEASEspring-jcl-5.2.5.RELEASE.jar;D:ProgramsJetBrainsIntelliJ IDEAlibidea_rt.jar" org.ouyushan.springboot.banner.SpringBootBannerApplication
Connected to the target VM, address: '127.0.0.1:3230', transport: 'socket'
.__ .__ .__ .__ .___
| |__ ____ | | | | ____ __ _ _____________| | __| _/
| | _/ __ | | | | / _ / / / _ _ __ | / __ |
| Y ___/| |_| |_( <_> ) ( <_> ) | / |__/ /_/ |
|___| /___ >____/____/____/ /_/ ____/|__| |____/____ |
/ / / 指定banner位置:resource/txt
spring-boot.version : 2.2.6.RELEASE
spring-boot.formatted-version : (v2.2.6.RELEASE)

4.3、方式三:自定义图片banner配置

在application.properties配置文件中指定

## 指定文本文件位置
# spring.banner.location=/txt/banner.txt ## 指定图片文件位置
spring.banner.image.location=/image/banner.gif
 
在resourcese资源包中新建/image,将下图命名为banner.gif后存入image目录
启动项目后,console会逐贞输出gif图片

五、知识点

## 1、项目名称:
```
spring-boot-banner
```
## 2、相关概念:
* spring boot banner 可以是文本也可以是动画,同时存在时动画优先于文本显示。
* spring boot 启动时会默认从classpath中加载banner.txt,若存在则打印里面的内容。
* banner.txt中可包含以下等变量:
```
${application.version}
${application.formatted-version}
${spring-boot.version}
${spring-boot.formatted-version}
${application.title}
``` * 通过以下配置来指定banner文本文件的位置,默认在根目录下,如resources ```
spring.banner.location=/txt/banner.txt
``` * 通过以下配置来指定banner文本文件的编码,默认UTF-8
```
spring.banner.charset
``` * 支持的图片文件为banner.gif、banner.jpg和banner.png。图片文件会被转换为ASCII art,并优先于文本banner展示。
* 通过以下配置来指定banner图像文件的位置,默认在根目录下,如resources
```
spring.banner.image.location=/image/banner.gif
``` * 通过以下配置来指定banner状态和级别,不配置时默认开启console
```
# spring.main.banner-mode=console
# spring.main.banner-mode=log
## 关闭banner
# spring.main.banner-mode=off
``` ## 3、sample实现
* 文本banner
在resources下新建文件banner.txt
```
.__ .__ .__ .__ .___
| |__ ____ | | | | ____ __ _ _____________| | __| _/
| | _/ __ | | | | / _ / / / _ _ __ | / __ |
| Y ___/| |_| |_( <_> ) ( <_> ) | / |__/ /_/ |
|___| /___ >____/____/____/ /_/ ____/|__| |____/____ |
/ / / spring-boot.version : ${spring-boot.version}
spring-boot.formatted-version :${spring-boot.formatted-version}
```
打印信息
``` .__ .__ .__ .__ .___
| |__ ____ | | | | ____ __ _ _____________| | __| _/
| | _/ __ | | | | / _ / / / _ _ __ | / __ |
| Y ___/| |_| |_( <_> ) ( <_> ) | / |__/ /_/ |
|___| /___ >____/____/____/ /_/ ____/|__| |____/____ |
/ / / spring-boot.version : 2.2.6.RELEASE
spring-boot.formatted-version : (v2.2.6.RELEASE)
``` * 图片banner
在resources下保存spring官方banner.gif

Spring boot Sample 002之spring-boot-banner的更多相关文章

  1. Spring Boot 2 (二):Spring Boot 2 动态 Banner

    Spring Boot 2 (二):Spring Boot 2 动态 Banner Spring Boot 2.0 提供了很多新特性,其中就有一个小彩蛋:动态 Banner. 一.配置依赖 使用 Sp ...

  2. Spring boot Sample 012之spring-boot-web-upload

    一.环境 1.1.Idea 2020.1 1.2.JDK 1.8 二.目的 spring boot 整合web实现文件上传下载 三.步骤 3.1.点击File -> New Project -& ...

  3. Spring boot Sample 0010之spring-boot-web-freemarker

    一.环境 1.1.Idea 2020.1 1.2.JDK 1.8 二.目的 spring boot 整合freemarker模板开发web项目 三.步骤 3.1.点击File -> New Pr ...

  4. Spring boot Sample 009之spring-boot-web-thymeleaf

    一.环境 1.1.Idea 2020.1 1.2.JDK 1.8 二.目的 spring boot 整合thymeleaf模板开发web项目 三.步骤 3.1.点击File -> New Pro ...

  5. Spring boot Sample 006之spring-boot-custom-servlet

    一.环境 1.1.Idea 2020.1 1.2.JDK 1.8 二.步骤 2.1.点击File -> New Project -> Spring Initializer,点击next 2 ...

  6. Spring boot Sample 005之spring-boot-profile

    一.环境 1.1.Idea 2020.1 1.2.JDK 1.8 二.目的 通过yaml文件配置spring boot 属性文件 三.步骤 3.1.点击File -> New Project - ...

  7. Spring Boot (五)Spring Data JPA 操作 MySQL 8

    一.Spring Data JPA 介绍 JPA(Java Persistence API)Java持久化API,是 Java 持久化的标准规范,Hibernate是持久化规范的技术实现,而Sprin ...

  8. 一起学JAVA之《spring boot》03 - 开始spring boot基本配置及项目结构(转)

    <div class="markdown_views"> <h3 id="一导航"><a name="t0"& ...

  9. Spring 5.x 、Spring Boot 2.x 、Spring Cloud 与常用技术栈整合

    项目 GitHub 地址:https://github.com/heibaiying/spring-samples-for-all 版本说明: Spring: 5.1.3.RELEASE Spring ...

随机推荐

  1. 使用kubeadm部署k8s集群[v1.18.0]

    使用kubeadm部署k8s集群 环境 IP地址 主机名 节点 10.0.0.63 k8s-master1 master1 10.0.0.63 k8s-master2 master2 10.0.0.6 ...

  2. D. Yet Another Subarray Problem 思维 难 dp更好理解

    D. Yet Another Subarray Problem 这个题目很难,我比赛没有想出来,赛后又看了很久别人的代码才理解. 这个题目他们差不多是用一个滑动窗口同时枚举左端点和右端点,具体如下: ...

  3. 第五章:深入Python的dict和set

    第五章:深入Python的dict和set 课程:Python3高级核心技术 5.1 dict的abc继承关系 class Mapping(Collection): __slots__ = () &q ...

  4. 错误:Several ports (8005, 8080, 8009) required by Tomcat v7.0 Server at localhost are already in use.

    Several ports (8005, 8080, 8009) required by Tomcat v7.0 Server at localhost are already in use. The ...

  5. LeetCode--Unique Email Addresses & Hamming Distance (Easy)

    929. Unique Email Addresses (Easy)# Every email consists of a local name and a domain name, separate ...

  6. Day_09【常用API】扩展案例5_获取长度为5的随机字符串,字符串由随机的4个大写英文字母和1个0-9之间(包含0和9)的整数组成

    分析以下需求,并用代码实现 1.定义String getStr(char[] chs)方法 功能描述:获取长度为5的随机字符串,字符串由随机的4个大写英文字母和1个0-9之间(包含0和9)的整数组成 ...

  7. 你真的知道C语言里extern "C" 的作用吗?

    经常在C语言的头文件中看到下面的代码: #ifdef __cplusplus extern "C" { #endif // all of your legacy C code he ...

  8. C:单链表的简单实现

    前言 今天整理资料的时候翻出来的文件,发现是以前学习数据结构的时候写的代码,当初是看郝凯老师的视频学习的C语言的数据结构,下面是对于一个单链表的简单的实现. /** ***************** ...

  9. search(12)- elastic4s-聚合=桶+度量

    这篇我们介绍一下ES的聚合功能(aggregation).聚合是把索引数据可视化处理成可读有用数据的主要工具.聚合由bucket桶和metrics度量两部分组成. 所谓bucket就是SQL的GROU ...

  10. [hdu5255]枚举

    思路:这题与csu1392题目类似,方法类似.枚举最高位,最低位和中间数字的长度,然后列等式,计算中间的数字,看长度是不是跟枚举的一致,需要注意的是中间数字可以有前导0,如果根据等式算出来的中间数字为 ...