2021年08月25日 课堂笔记

发表于 分类于 ， ， Waline： 本文字数： 2.5k 阅读时长 ≈ 2 分钟

Maven

配置

本地仓库位置

image-20210825091404428

镜像

阿里云镜像

image-20210825091441476

指定JDK版本

image-20210825091529800

不要用自带的maven

image-20210825091708640

image-20210825091738379

华为OD
要刷力扣

maven工程

image-20210825092929236

idea 微服务示例

更改maven位置

image-20210825093853608

idea创建微服务

image-20210825094426470

image-20210825094804099

提升级别

image-20210825094856419

主类所在的包下扫描，所以要把主类提升到上一级别。

image-20210825095338848

image-20210825095508947

优化：

image-20210825095536999

image-20210825095634472

maven打包

到项目对应的目录中，然后输入

1
mvn package

找到打包好的jar包

进入target目录：

1
cd .\target\

查看目录

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PS G:\dev2\idea_workspace\webdemo\target> ls


    目录: G:\dev2\idea_workspace\webdemo\target


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        2021.08.25     10:06                classes
d-----        2021.08.25     10:05                generated-sources
d-----        2021.08.25     10:06                generated-test-sources
d-----        2021.08.25     10:16                maven-archiver
d-----        2021.08.25     10:15                maven-status
d-----        2021.08.25     10:16                surefire-reports
d-----        2021.08.25     10:06                test-classes
-a----        2021.08.25     10:17       17345790 demo-0.0.1-SNAPSHOT.jar
-a----        2021.08.25     10:16           3594 demo-0.0.1-SNAPSHOT.jar.original


PS G:\dev2\idea_workspace\webdemo\target>

可以看到有个jar文件:

1
demo-0.0.1-SNAPSHOT.jar

运行jar包

1
java -jar .\demo-0.0.1-SNAPSHOT.jar

运行成功效果:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PS G:\dev2\idea_workspace\webdemo\target> java -jar .\demo-0.0.1-SNAPSHOT.jar

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.5.4)

2021-08-25 10:23:10.611  INFO 13044 --- [           main] com.example.DemoApplication              : Starting DemoApplication v0.0.1-SNAPSHOT using Java 11.0.4 on DESKTOP-SH3MQPI with PID 13044 (G:\dev2\idea_workspace\webdemo\target\demo-0.0.1-SNAPSHOT.jar started by 18190 in G:\dev2\idea_workspace\webdemo\target)
2021-08-25 10:23:10.611  INFO 13044 --- [           main] com.example.DemoApplication              : No active profile set, falling back to default profiles: default
2021-08-25 10:23:12.923  INFO 13044 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 9000 (http)
2021-08-25 10:23:12.954  INFO 13044 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2021-08-25 10:23:12.954  INFO 13044 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.52]
2021-08-25 10:23:13.095  INFO 13044 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2021-08-25 10:23:13.095  INFO 13044 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 2250 ms
2021-08-25 10:23:13.642  INFO 13044 --- [           main] o.s.b.a.w.s.WelcomePageHandlerMapping    : Adding welcome page: class path resource [static/index.html]
2021-08-25 10:23:13.814  INFO 13044 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 9000 (http) with context path ''
2021-08-25 10:23:13.829  INFO 13044 --- [           main] com.example.DemoApplication              : Started DemoApplication in 4.687 seconds (JVM running for 5.481)

image-20210825095832386

浏览器即可访问

进入浏览器即可访问：

image-20210825102421351

image-20210825102439235