我正在尝试使用 Intellij Ultimate(Java 1.8、Maven 3.5.4、Spring 2.0.4)创建一个带有 Spring Boot 的项目。这是我的第一个 Spring Boot 项目,所以我不确定我是否正确使用 Maven。
我已经尝试过从此链接编辑 pom 文件并添加依赖项(spring-boot-starter-data-jpa、spring-boot-starter-web)的建议,但没有任何效果。
package org.springframework.boot does not exist
我不断收到以下错误:
Information:java: JPS build failed to load optimized file manager for javac:
java.lang.NoClassDefFoundError: com/sun/tools/javac/util/DefaultFileManager
java.lang.NoClassDefFoundError: com/sun/tools/javac/file/JavacFileManager
Information:java: Errors occurred while compiling module 'demo'
Information:javac 8 was used to compile java sources
Information:2018-08-03, 5:14 PM - Compilation completed with 4 errors and 4 warnings in 6 s 430 ms
Warning:java: class org.jetbrains.jps.javac.ast.ExternalRefCollectorCompilerToolExtension : com/sun/source/util/TaskListener
Warning:java: source value 1.5 is obsolete and will be removed in a future release
Warning:java: target value 1.5 is obsolete and will be removed in a future release
Warning:java: To suppress warnings about obsolete options, use -Xlint:-options.
/Users/henryli/Desktop/demo/src/main/java/com/example/demo/DemoApplication.java
Error:(3, 32) java: package org.springframework.boot does not exist
Error:(4, 46) java: package org.springframework.boot.autoconfigure does not exist
Error:(6, 2) java: cannot find symbol
symbol: class SpringBootApplication
Error:(10, 9) java: cannot find symbol
symbol: variable SpringApplication
location: class com.example.demo.DemoApplication
这是我的 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</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>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
这是我的代码/Java 类:
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
我使用 Spring Initializer 创建此项目并保留所有默认值,但它没有构建。
最佳答案
转到设置 - 构建、执行、部署 > 构建工具 > Maven
检查用户设置文件指向Setting.xml 所在的正确位置。如果您的位置上没有setting.xml。请添加并尝试构建。
关于java - 多个Spring Boot错误: package org. springframework.boot不存在,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51680359/