2021年08月25日 微服务步骤

发表于 分类于 ， ， Waline： 本文字数： 4.3k 阅读时长 ≈ 4 分钟

给新建的项目配置maven设置

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创建新Spring WEB项目

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编写代码

提升主类

创建Controller

创建controller包

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创建Controller

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TestController.java

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package com.example.demo.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class TestController {
    @RequestMapping("test")
    @ResponseBody
    public String test(String input) {
        return "YouInput:" + input;
    }
}

创建静态页面

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index.html

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Spring 微服务HelloWorld</title>
</head>
<body>
    <h3>Spring 微服务 HelloWorld</h3>
</body>
</html>

设置端口

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idea中运行

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浏览器验证

主页

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控制器

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maven打包jar

复制项目路径

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打开cmd,进入项目的根路径，输入mvn package进行打包：

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打包成功效果

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PS G:\dev2\idea_workspace\demo> mvn package
[INFO] Scanning for projects...
[INFO]
......
[INFO] --- spring-boot-maven-plugin:2.5.4:repackage (repackage) @ demo ---
[INFO] Replacing main artifact with repackaged archive
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  18.170 s
[INFO] Finished at: 2021-08-25T11:17:11+08:00
[INFO] ------------------------------------------------------------------------
PS G:\dev2\idea_workspace\demo>

打包会在项目根路径下生成一个target目录:

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PS G:\dev2\idea_workspace\demo> ls


    目录: G:\dev2\idea_workspace\demo


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        2021.08.25     11:15                .idea
d-----        2021.08.25     10:57                .mvn
d-----        2021.08.25     10:57                src
d-----        2021.08.25     11:17                target
-a----        2021.08.25     10:57            395 .gitignore
-a----        2021.08.25     10:59           8128 demo.iml
-a----        2021.08.25     10:57            891 HELP.md
-a----        2021.08.25     10:57          10070 mvnw
-a----        2021.08.25     10:57           6608 mvnw.cmd
-a----        2021.08.25     10:57           1430 pom.xml


PS G:\dev2\idea_workspace\demo>

java -jar运行

进入target目录，可以看到生成的jar文件:demo-0.0.1-SNAPSHOT.jar

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PS G:\dev2\idea_workspace\demo\target> ls


    目录: G:\dev2\idea_workspace\demo\target


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        2021.08.25     11:12                classes
d-----        2021.08.25     11:12                generated-sources
d-----        2021.08.25     11:12                generated-test-sources
d-----        2021.08.25     11:17                maven-archiver
d-----        2021.08.25     11:16                maven-status
d-----        2021.08.25     11:17                surefire-reports
d-----        2021.08.25     11:12                test-classes
-a----        2021.08.25     11:17       17345973 demo-0.0.1-SNAPSHOT.jar
-a----        2021.08.25     11:17           3739 demo-0.0.1-SNAPSHOT.jar.original


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

然后输入

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

命令运行，这个jar:

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PS G:\dev2\idea_workspace\demo\target> java -jar .\demo-0.0.1-SNAPSHOT.jar

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

2021-08-25 11:21:57.305  INFO 12348 --- [           main] com.example.demo.DemoApplication         : Starting DemoApplication v0.0.1-SNAPSHOT using Java 11.0.4 on DESKTOP-SH3MQPI with PID 12348 (G:\dev2\idea_workspace\demo\target\demo-0.0.1-SNAPSHOT.jar started by 18190 in G:\dev2\idea_workspace\demo\target)
2021-08-25 11:21:57.305  INFO 12348 --- [           main] com.example.demo.DemoApplication         : No active profile set, falling back to default profiles: default
2021-08-25 11:21:59.990  INFO 12348 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 9000 (http)
2021-08-25 11:22:00.084  INFO 12348 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2021-08-25 11:22:00.146  INFO 12348 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.52]
2021-08-25 11:22:00.381  INFO 12348 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2021-08-25 11:22:00.381  INFO 12348 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 2889 ms
2021-08-25 11:22:01.256  INFO 12348 --- [           main] o.s.b.a.w.s.WelcomePageHandlerMapping    : Adding welcome page: class path resource [static/index.html]
2021-08-25 11:22:01.553  INFO 12348 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 9000 (http) with context path ''
2021-08-25 11:22:01.568  INFO 12348 --- [           main] com.example.demo.DemoApplication         : Started DemoApplication in 5.231 seconds (JVM running for 6.034)

浏览器验证

运行的效果和在idea中运行一样

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