java - 包 org.springframework.boot 不存在但对我不起作用
问题描述
I am trying to run the spring boot project in IntelliJ, I am facing issues when compiling the code. Detailed explanation below.
**bold**Error below **bold**
` javac StudentApplication.java
StudentApplication.java:6:错误:包 org.springframework.boot 不存在导入 org.springframework.boot.SpringApplication;^ StudentApplication.java:7:错误:包 org.springframework.boot.autoconfigure 不存在导入 org.springframework.boot.autoconfigure.SpringBootApplication;^ StudentApplication.java:9:错误:找不到符号@SpringBootApplication ^ 符号:类 SpringBootApplication StudentApplication.java:14:错误:找不到符号 SpringApplication.run(^ 符号:变量 SpringApplication 位置:类 StudentApplication 4 错误`
Below is my StudentApplication.java
'我在 SpringApplication.run 中遇到错误'
//import org.springframework.context.ApplicationContext;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class StudentApplication {
public static void main(String[] args) {
//ApplicationContext ctx =
SpringApplication.run(
StudentApplication.class, args);
//System.out.println(ctx);
}
}
Below is my porm.xml
'与列表'''
<?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>2.4.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>info.inet</groupId>
<artifactId>coursestudent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>coursestudent</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</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-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-rest-hal-browser</artifactId>
<version> 3.3.6.RELEASE </version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
我无法解决它。即使在 porm.xml 文件中添加了依赖项。任何人都可以帮助我。如果需要,我会推送 git 以查看完整代码。但请不要不必要地关闭它。
解决方案
你的远程 Maven 仓库更新了吗?查看
Settings -> Build, Execution, Deployment -> Build tools -> Maven -> Repositories
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