我把springboot项目从Java 8 升级 到了Java 17 的过程总结，愿为君提前踩坑！

curl -s "https://get.sdkman.io" | bash

sdk install java 22.3.r17-grl
sdk install maven 3.8.2

Installing script cli archive...
* Downloading...
curl: (28) Failed to connect to github.com port 443 after 75015 ms: Couldn't connect to server

'curl --fail --location --progress-bar "${SDKMAN_SERVICE}/broker/download/sdkman/install/${SDKMAN_VERSION}/${SDKMAN_PLATFORM}" > "$sdkman_zip_file"': command failed with exit code 28.

curl -s "https://get.sdkman.io" | bash

rm -rf "$HOME/.sdkman"

touch: /Users/myName/.bash_profile: Permission denied
'touch "$sdkman_bash_profile"': command failed with exit code 1.

vim ~/.bash_profile

export SDKMAN_CANDIDATES_API=https://api.sdkman.io/2
[[ -s "$HOME/.sdkman/bin/sdkman-init.sh" ]] && source "$HOME/.sdkman/bin/sdkman-init.sh"

source ~/.bash_profile

sdk install java 22.3.r17-grl

vim ~/.bash_profile

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-17.jdk/Contents/Home
#export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home
export PATH=$JAVA_HOME/bin:$PATH:.
export CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:.

source ~/.bash_profile
java -version

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

<version>3.0.0</version>

因为社区版免费使用，所以下载社区版安装就好。下载的版本是Idea 2022.2.1+就可以，不做过多阐述。

mac 下，ideaIC-2023.1.2-aarch64.dmg 直接双击安装，按照说明完成操作即可。接下来就是启动。

从这里开始，就是本篇的重点了，一个接一个地处理问题。

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>6.1.7.Final</version>
        </dependency>

ERROR StatusLogger Unable to create Lookup for ctx
 java.lang.NoClassDefFoundError: org/apache/logging/log4j/util/ServiceLoaderUtil
Caused by: java.lang.ClassNotFoundException: org.apache.logging.log4j.util.ServiceLoaderUtil
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)

			<dependency>
				<groupId>org.apache.mvnging.log4j</groupId>
				<artifactId>log4j-core</artifactId>
				<version>2.22.0</version>
			</dependency>

			<dependency>
				<groupId>org.apache.logging.log4j</groupId>
				<artifactId>log4j-slf4j-impl</artifactId>
				<version>2.22.0</version>
			</dependency>

			<dependency>
				<groupId>org.apache.logging.log4j</groupId>
				<artifactId>log4j-jul</artifactId>
				<version>2.22.0</version>
			</dependency>

			<dependency>
				<groupId>org.apache.logging.log4j</groupId>
				<artifactId>log4j-api</artifactId>
				<version>2.22.0</version>
			</dependency>

java.lang.TypeNotPresentException: Type javax.servlet.http.HttpServletRequest not present
Caused by: java.lang.ClassNotFoundException: javax.servlet.http.HttpServletRequest

			<dependency>
				<groupId>io.springfox</groupId>
				<artifactId>springfox-boot-starter</artifactId>
				<version>${springfox.version}</version>
			</dependency>

<dependency>
    <groupId>org.springdoc</groupId>
    <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
    <version>2.2.0</version>
</dependency>

***************************APPLICATION FAILED TO START***************************Description:An attempt was made to call a method that does not exist. The attempt was made from the following location:

org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration$FlywayConfiguration.configureProperties(FlywayAutoConfiguration.java:234)The following method did not exist:    'org.flywaydb.core.api.configuration.FluentConfiguration org.flywaydb.core.api.configuration.FluentConfiguration.oracleSqlplus(boolean)'The calling method's class, org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration$FlywayConfiguration, was loaded from the following location:

Action:Correct the classpath of your application so that it contains compatible versions of the classes org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration$FlywayConfiguration and org.flywaydb.core.api.configuration.FluentConfiguration

			<dependency>
				<groupId>org.flywaydb</groupId>
				<artifactId>flyway-core</artifactId>
				<version>7.14.0</version>
			</dependency>

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of constructor in com.axiomesh.bt.common.BTInitializer required a bean of type 'com.baomidou.dynamic.datasource.creator.DefaultDataSourceCreator' that could not be found.


Action:

Consider defining a bean of type 'com.baomidou.dynamic.datasource.creator.DefaultDataSourceCreator' in your configuration.

<dependency>
	<groupId>com.baomidou</groupId>
	<artifactId>dynamic-datasource-spring-boot3-starter</artifactId>
	<version>4.2.0</version>
</dependency>