SpringBoot 搭建项目【SpringBoot系列1】

淡淡的烟草味﹌ 2023-10-08 19:13 31阅读 0赞

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> 登录Spring Initializr生成Spring Boot项目模板，保存到本地。

[地址][Link 1]：https://start.spring.io/  
![在这里插入图片描述][4a339882963b4688bd740cfb5de1fea1.png]

使用IDE导入生成的Maven项目,项目结构很简单:

![在这里插入图片描述][9985b5234650402abc22361c4ba136be.png]

##### 1.pom.xml, Maven的配置文件。 #####

application.yml 配置文件是空的。

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    	<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>3.0.4</version>
    		<relativePath/> 
    	</parent>
    	<groupId>club.bigleading</groupId>
    	<artifactId>bigleading-admin</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<packaging>jar</packaging>
    
    	<name>bigleading-admin</name>
    	<description>Demo project for Spring Boot</description>
    	<properties>
    		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    		<java.version>17</java.version>
    	</properties>
    	<dependencies>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-devtools</artifactId>
    			<scope>runtime</scope>
    			<optional>true</optional>
    		</dependency>
    		<dependency>
    			<groupId>org.projectlombok</groupId>
    			<artifactId>lombok</artifactId>
    			<optional>true</optional>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    	</dependencies>
    
    	<build>
    		<plugins>
    			<plugin>
    				<groupId>org.springframework.boot</groupId>
    				<artifactId>spring-boot-maven-plugin</artifactId>
    				<configuration>
    					<excludes>
    						<exclude>
    							<groupId>org.projectlombok</groupId>
    							<artifactId>lombok</artifactId>
    						</exclude>
    					</excludes>
    				</configuration>
    			</plugin>
    		</plugins>
    	</build>
    
    </project>

##### 2 启动类 BigleadingAdminApplication #####

import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication
    public class BigleadingAdminApplication {
        
    
        public static void main(String[] args) {
        
            SpringApplication.run(BigleadingAdminApplication.class, args);
        }
    
    }

##### 3 打包运行 #####

![在这里插入图片描述][da08b7e46bd6481db26335427bc2427c.png]

![在这里插入图片描述][169695381fda45efb40fc119ab4a4e91.png]  
启动成功后 默认的端口是 8080  
![在这里插入图片描述][9b42185b56fa4436a94f602c32d5ac8f.png]

##### 4 自定义启动端口 #####

# Tomcat
    server:
      tomcat:
        uri-encoding: UTF-8
        max-threads: 1000
        # 最小备用线程数，tomcat启动时的初始化的线程数，默认10。
        min-spare-threads: 30
      port: 8899
      context-path: /bigleadding-admin

*  max-threads Tomcat tomcat 可创建的最大的线程数，每一个线程处理一个请求，超过这个请求数后，客户端请求只能排队，等有线程释放才能处理。最大工作线程数，默认200。（4核8g内存，线程数800，一般是核数\*200。操作系统做线程之间的切换调度是有系统开销的，所以不是越多越好。）

##### 4 添加测试 controller #####

import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class TestController {
        
        @GetMapping(value="/hello")
        public Object hello() {
        
            return "Hello Kitty!";
        }
    }

然后在浏览器中访问（端口要对应起来）

http://localhost:8899/hello

项目源码在这里 ：[https://gitee.com/android.long/spring-boot-study/tree/master/demo][https_gitee.com_android.long_spring-boot-study_tree_master_demo]  
有兴趣可以关注一下公众号：biglead

[Link 1]: https://start.spring.io/
[4a339882963b4688bd740cfb5de1fea1.png]: https://img-blog.csdnimg.cn/4a339882963b4688bd740cfb5de1fea1.png
[9985b5234650402abc22361c4ba136be.png]: https://img-blog.csdnimg.cn/9985b5234650402abc22361c4ba136be.png
[da08b7e46bd6481db26335427bc2427c.png]: https://img-blog.csdnimg.cn/da08b7e46bd6481db26335427bc2427c.png
[169695381fda45efb40fc119ab4a4e91.png]: https://img-blog.csdnimg.cn/169695381fda45efb40fc119ab4a4e91.png
[9b42185b56fa4436a94f602c32d5ac8f.png]: https://img-blog.csdnimg.cn/9b42185b56fa4436a94f602c32d5ac8f.png
[https_gitee.com_android.long_spring-boot-study_tree_master_demo]: https://gitee.com/android.long/spring-boot-study/tree/master/demo