pom.xml 中的语言级别无效或缺失。 当前项目JDK为11，在项目中指定语言级别

Question

I am generate the following project and its dependencies with Spring Boot 3 from Spring initializr

Opening and running project in Intellij IDEA the following output is returned

error: release version 17 not supported

Language level is invalid or missing in pom.xml. Current project JDK is 11. Specify language level in webflux-project 

I have jdk 11 installed on my system

> java --version
java 11.0.14 2022-01-18 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.14+8-LTS-263)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.14+8-LTS-263, mixed mode)

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>3.0.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.gamesmall</groupId>
    <artifactId>webflux</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>webflux</name>
    <description>Demo project for Spring Boot with WebFlux</description>
    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        ...
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

how to resolved this issue?

Answer 1

According tothis article Spring Boot 3.0 will require Java 17 (jdk 17). So during project generation change Spring Boot version from 3.* to 2.7.* and solved !