7.10学习SpringBoot

一篇好文章

Maven配置与SpringBoot环境配置 - 简书 (jianshu.com)

之前我是没有特意下载maven的，一直用的是springboot自带的

spring.io在网络不好的时候是加载不出来的，所以我觉得要重新梳理一下。

 

application.properties可以配置

Common Application Properties (spring.io)

 

SpringBoot官方文档

Spring Boot Reference Documentation

我可能看不太懂啊哈哈哈哈哈

 

<!--	可以直接打成jar包，什么运行环境都带着-->
	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

　　

打包的时候出错咯

错误信息：There was an error in the forked process
com/example/SpringBoot_001/SpringBoot001ApplicationTests has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0

emmm设置了一下都java8的编码，在项目结构里面和设置java编译器里面

再删除一下原来的jar包就可以了

49 = Java 5
50 = Java 6
51 = Java 7
52 = Java 8
53 = Java 9
54 = Java 10
55 = Java 11
56 = Java 12
57 = Java 13
58 = Java 14

 

最简单的SpringBoot的pom.xml

<?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>2.7.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>SpringBoot_001</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>SpringBoot_001</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <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-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

<!--    可以直接打成jar包，什么运行环境都带着-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

 

alt+enter自动补全