java如何在intellij中运行spring启动应用程序？

Question

我想在intellij idea中运行一个演示spring引导应用程序，但我有一个错误：

Error:(3, 32) java: package org.springframework.boot does not exist

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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.21.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>helloworld</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>helloworld</name>
    <description>Hello World project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>mssql-jdbc</artifactId>
            <scope>runtime</scope>
        </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>

Answer 1

一定要打开pom。xml而不是文件夹。IntelliJ会询问您是否希望作为项目导入。这个问题的答案是肯定的。 你可以右键点击pom。xml并选择Maven->；重新导入将自动为您生成类路径

然后从树中转到main类，右键单击并选择Run。这将在运行配置中创建一个临时配置

剩下的你可以在这里找到：

https://www.jetbrains.com/help/idea/running-applications.html

如果您想作为maven项目运行，请执行以下操作：

https://www.jetbrains.com/help/idea/work-with-maven-goals.html

如果您想以java jar的形式从终端运行，当您构建了spring boot jar后，按CTRL+TAB+T（激活终端）并输入终端： java -jar target/yourjar.jar