异常提示:Exception in thread "main" java.lang.UnsupportedClassVersionError: org/springframework/boot/SpringApplication 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
Exception in thread "main" java.lang.UnsupportedClassVersionError:
org/springframework/boot/SpringApplication 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
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at com.handlefile.Application.main(Application.java:10)
Error:(3, 32) java: 无法访问org.springframework.boot.SpringApplication
错误的类文件: /E:/ideaMaven/repMaven/org/springframework/boot/spring-boot/
3.0.1/spring-boot-3.0.1.jar!/org/springframework/boot/SpringApplication.class
类文件具有错误的版本 61.0, 应为 52.0
请删除该文件或确保该文件位于正确的类路径子目录中。
SpringBoot 与 JDK 版本冲突:新建项目时,idea 会默认选择更高的 SpringBoot 版本,但>3.0SpringBoot 的版本暂不支持 JDK1.8,所以会出现启动报错

一般来说高JDK版本能向下兼容低版本的springboot版本。
建议在springboot 2.5.x及其之前使用JDK8,之后的springboot版本使用JDK11即可
在pom.xml文件中修改SpringBoot版本或JDK版本

| SpringBoot版本 | JDK最低版本 | SpringBoot官网证据 |
|---|---|---|
| 1.0.0.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.0.1.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.0.2.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.0.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.1.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.2.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.3.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.4.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.5.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.6.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.7.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.8.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.9.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.10.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.11.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.1.12.RELEASE | 1.6 | Regardless, you will need Java SDK v1.6 or higher. |
| 1.2.0.RELEASE | 1.6 | Spring Boot 1.2.0.RELEASE requires Java 6 and Spring Framework 4.1.3 or above. |
| 1.2.1.RELEASE | 1.6 | Spring Boot 1.2.1.RELEASE requires Java 6 and Spring Framework 4.1.3 or above. |
| 1.2.2.RELEASE | 1.7 | Spring Boot 1.2.2.RELEASE requires Java 7 and Spring Framework 4.1.3 or above. |
| 1.2.3.RELEASE | 1.7 | Spring Boot 1.2.3.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.2.4.RELEASE | 1.7 | Spring Boot 1.2.4.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.2.5.RELEASE | 1.7 | Spring Boot 1.2.5.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.2.6.RELEASE | 1.7 | Spring Boot 1.2.6.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.2.7.RELEASE | 1.7 | Spring Boot 1.2.7.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.2.8.RELEASE | 1.7 | Spring Boot 1.2.8.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.3.0.RELEASE | 1.7 | Spring Boot 1.3.0.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.3.1.RELEASE | 1.7 | Spring Boot 1.3.0.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.3.2.RELEASE | 1.7 | Spring Boot 1.3.0.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.3.3.RELEASE | 1.7 | Spring Boot 1.3.0.RELEASE requires Java 7 and Spring Framework 4.1.5 or above. |
| 1.3.4.RELEASE | 1.7 | Spring Boot 1.3.4.RELEASE requires Java 7 and Spring Framework 4.2.6.RELEASE or above. |
| 1.3.5.RELEASE | 1.7 | Spring Boot 1.3.5.RELEASE requires Java 7 and Spring Framework 4.2.6.RELEASE or above. |
| 1.3.6.RELEASE | 1.7 | Spring Boot 1.3.6.RELEASE requires Java 7 and Spring Framework 4.2.7.RELEASE or above. |
| 1.3.7.RELEASE | 1.7 | Spring Boot 1.3.7.RELEASE requires Java 7 and Spring Framework 4.2.7.RELEASE or above. |
| 1.3.8.RELEASE | 1.7 | Spring Boot 1.3.8.RELEASE requires Java 7 and Spring Framework 4.2.8.RELEASE or above. |
| 1.4.0.RELEASE | 1.7 | Spring Boot 1.4.0.RELEASE requires Java 7 and Spring Framework 4.3.2.RELEASE or above. |
| 1.4.1.RELEASE | 1.7 | Spring Boot 1.4.1.RELEASE requires Java 7 and Spring Framework 4.3.3.RELEASE or above. |
| 1.4.2.RELEASE | 1.7 | Spring Boot 1.4.2.RELEASE requires Java 7 and Spring Framework 4.3.4.RELEASE or above. |
| 1.4.3.RELEASE | 1.7 | Spring Boot 1.4.3.RELEASE requires Java 7 and Spring Framework 4.3.5.RELEASE or above. |
| 1.4.4.RELEASE | 1.7 | Spring Boot 1.4.4.RELEASE requires Java 7 and Spring Framework 4.3.6.RELEASE or above. |
| 1.4.5.RELEASE | 1.7 | Spring Boot 1.4.5.RELEASE requires Java 7 and Spring Framework 4.3.7.RELEASE or above. |
| 1.4.6.RELEASE | 1.7 | Spring Boot 1.4.6.RELEASE requires Java 7 and Spring Framework 4.3.8.RELEASE or above. |
| 1.4.7.RELEASE | 1.7 | Spring Boot 1.4.7.RELEASE requires Java 7 and Spring Framework 4.3.9.RELEASE or above. |
| 1.5.0.RELEASE | 1.7 | Spring Boot 1.5.0.RELEASE requires Java 7 and Spring Framework 4.3.6.RELEASE or above. |
| 1.5.1.RELEASE | 1.7 | Spring Boot 1.5.1.RELEASE requires Java 7 and Spring Framework 4.3.6.RELEASE or above. |
| 1.5.2.RELEASE | 1.7 | Spring Boot 1.5.2.RELEASE requires Java 7 and Spring Framework 4.3.7.RELEASE or above. |
| 1.5.3.RELEASE | 1.7 | Spring Boot 1.5.3.RELEASE requires Java 7 and Spring Framework 4.3.8.RELEASE or above. |
| 1.5.4.RELEASE | 1.7 | Spring Boot 1.5.4.RELEASE requires Java 7 and Spring Framework 4.3.9.RELEASE or above. |
| 1.5.5.RELEASE | 1.7 | Spring Boot 1.5.5.RELEASE requires Java 7 and Spring Framework 4.3.10.RELEASE or above. |
| 1.5.6.RELEASE | 1.7 | Spring Boot 1.5.6.RELEASE requires Java 7 and Spring Framework 4.3.10.RELEASE or above. |
| 1.5.7.RELEASE | 1.7 | Spring Boot 1.5.7.RELEASE requires Java 7 and Spring Framework 4.3.11.RELEASE or above. |
| 1.5.8.RELEASE | 1.7 | Spring Boot 1.5.8.RELEASE requires Java 7 and Spring Framework 4.3.12.RELEASE or above. |
| 1.5.9.RELEASE | 1.7 | Spring Boot 1.5.9.RELEASE requires Java 7 and Spring Framework 4.3.13.RELEASE or above. |
| 1.5.10.RELEASE | 1.7 | Spring Boot 1.5.10.RELEASE requires Java 7 and Spring Framework 4.3.14.RELEASE or above. |
| 1.5.11.RELEASE | 1.7 | Spring Boot 1.5.11.RELEASE requires Java 7 and Spring Framework 4.3.15.RELEASE or above. |
| 1.5.12.RELEASE | 1.7 | Spring Boot 1.5.12.RELEASE requires Java 7 and Spring Framework 4.3.16.RELEASE or above. |
| 1.5.13.RELEASE | 1.7 | Spring Boot 1.5.13.RELEASE requires Java 7 and Spring Framework 4.3.17.RELEASE or above. |
| 1.5.14.RELEASE | 1.7 | Spring Boot 1.5.14.RELEASE requires Java 7 and Spring Framework 4.3.18.RELEASE or above. |
| 1.5.15.RELEASE | 1.7 | Spring Boot 1.5.15.RELEASE requires Java 7 and Spring Framework 4.3.18.RELEASE or above. |
| 1.5.16.RELEASE | 1.7 | Spring Boot 1.5.16.RELEASE requires Java 7 and Spring Framework 4.3.19.RELEASE or above. |
| 1.5.17.RELEASE | 1.7 | Spring Boot 1.5.17.RELEASE requires Java 7 and Spring Framework 4.3.20.RELEASE or above. |
| 1.5.18.RELEASE | 1.7 | Spring Boot 1.5.18.RELEASE requires Java 7 and Spring Framework 4.3.21.RELEASE or above. |
| 1.5.19.RELEASE | 1.7 | Spring Boot 1.5.19.RELEASE requires Java 7 and Spring Framework 4.3.22.RELEASE or above. |
| 1.5.20.RELEASE | 1.7 | Spring Boot 1.5.20.RELEASE requires Java 7 and Spring Framework 4.3.23.RELEASE or above. |
| 1.5.21.RELEASE | 1.7 | Spring Boot 1.5.21.RELEASE requires Java 7 and Spring Framework 4.3.24.RELEASE or above. |
| 2.0.0.RELEASE | 1.8 | Spring Boot 2.0.0.RELEASE requires Java 8 or 9 and Spring Framework 5.0.4.RELEASE or above. |
| 2.0.1.RELEASE | 1.8 | Spring Boot 2.0.1.RELEASE requires Java 8 or 9 and Spring Framework 5.0.5.RELEASE or above. |
| 2.0.2.RELEASE | 1.8 | Spring Boot 2.0.2.RELEASE requires Java 8 or 9 and Spring Framework 5.0.6.RELEASE or above. |
| 2.0.3.RELEASE | 1.8 | Spring Boot 2.0.3.RELEASE requires Java 8 or 9 and Spring Framework 5.0.7.RELEASE or above. |
| 2.0.4.RELEASE | 1.8 | Spring Boot 2.0.4.RELEASE requires Java 8 or 9 and Spring Framework 5.0.8.RELEASE or above. |
| 2.0.5.RELEASE | 1.8 | Spring Boot 2.0.5.RELEASE requires Java 8 or 9 and Spring Framework 5.0.9.RELEASE or above. |
| 2.0.6.RELEASE | 1.8 | Spring Boot 2.0.6.RELEASE requires Java 8 or 9 and Spring Framework 5.0.10.RELEASE or above. |
| 2.0.7.RELEASE | 1.8 | Spring Boot 2.0.7.RELEASE requires Java 8 or 9 and Spring Framework 5.0.11.RELEASE or above. |
| 2.0.8.RELEASE | 1.8 | Spring Boot 2.0.8.RELEASE requires Java 8 or 9 and Spring Framework 5.0.12.RELEASE or above. |
| 2.0.9.RELEASE | 1.8 | Spring Boot 2.0.9.RELEASE requires Java 8 or 9 and Spring Framework 5.0.13.RELEASE or above. |
| 2.1.0.RELEASE | 1.8 | Spring Boot 2.1.0.RELEASE requires Java 8 or 9 and Spring Framework 5.1.2.RELEASE or above. |
| 2.1.1.RELEASE | 1.8 | Spring Boot 2.1.1.RELEASE requires Java 8 and is compatible up to Java 11 (included). Spring Framework 5.1.3.RELEASE or above is also required. |
| 2.1.2.RELEASE | 1.8 | Spring Boot 2.1.2.RELEASE requires Java 8 and is compatible up to Java 11 (included). Spring Framework 5.1.4.RELEASE or above is also required. |
| 2.1.3.RELEASE | 1.8 | Spring Boot 2.1.3.RELEASE requires Java 8 and is compatible up to Java 11 (included). Spring Framework 5.1.5.RELEASE or above is also required. |
| 2.1.4.RELEASE | 1.8 | Spring Boot 2.1.4.RELEASE requires Java 8 and is compatible up to Java 11 (included). Spring Framework 5.1.6.RELEASE or above is also required. |
| 2.1.5.RELEASE | 1.8 | Spring Boot 2.1.5.RELEASE requires Java 8 and is compatible up to Java 11 (included). Spring Framework 5.1.7.RELEASE or above is also required. |
| 2.1.6.RELEASE | 1.8 | Spring Boot 2.1.6.RELEASE requires Java 8 and is compatible up to Java 11 (included). Spring Framework 5.1.8.RELEASE or above is also required. |
| 未完,待续... |
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