[Java知识库]Maven IDEA SpringBoot

创建一个普通maven项目

不需要勾选Create from archetype

改造成SpringBoot项目

1. pom.xml的project标签加入父依赖

<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.5.5</version>
	<relativePath/> <!-- lookup parent from repository -->
</parent>

2. 加入web依赖包

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

3. 新建启动类

package com.app;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

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

4. 新建WEB测试接口

package com.app.test;

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

@Controller
@RequestMapping("/TestClass")
public class Test {

    @GetMapping("TestFunction")
    @ResponseBody
    public String onMethod() {
        return "return some json";
    }
}

5.输入url观察结果

http://localhost:8080/TestClass/TestFunction

6. 打包运行

pom.xml的project标签中加入插件，用来运行指定的启动类com.app.ApplicationStartup的main方法

<build>
	<plugins>
	    <plugin>
	        <groupId>org.springframework.boot</groupId>
	        <artifactId>spring-boot-maven-plugin</artifactId>
	        <configuration>
	            <mainClass>com.app.ApplicationStartup</mainClass>
	        </configuration>
	    </plugin>
	</plugins>
</build>

依次执行maven命令
clean 清空之前运行生成的target目录
package 打jar包

在target目录找到生成的jar包

把jar包拷贝到其他地方进行cmd运行

java -jar boot_001-1.0-SNAPSHOT.jar