英文:
Spring-Boot Maven, missing dependency @RestController
问题
我对Spring Boot和Maven领域不太了解,想要询问我在这里做错了什么,为什么它不能以那种方式工作。
通常我在输入注释"@RestController"之后它应该添加 -> import org.springframework.web.bind.annotation.RestController;
我应该怎么做?
我的POM
<?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>2.3.1.RELEASE</version>
	    <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>de.martinm</groupId>
    <artifactId>SimpleTest</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>SimpleTest</name>
    <description>Test project using Spring</description>
    <properties>
	    <java.version>1.8</java.version>
    </properties>
    <dependencies>
	    <dependency>
		    <groupId>org.springframework.boot</groupId>
		    <artifactId>spring-boot-starter</artifactId>
	    </dependency>
	    <dependency>
		    <groupId>org.springframework.boot</groupId>
		    <artifactId>spring-boot-starter-test</artifactId>
		    <scope>test</scope>
		    <exclusions>
			    <exclusion>
				    <groupId>org.junit.vintage</groupId>
				    <artifactId>junit-vintage-engine</artifactId>
			    </exclusion>
		    </exclusions>
	    </dependency>
	    <dependency>
		    <groupId>org.apache.maven</groupId>
		    <artifactId>maven-core</artifactId>
		    <version>3.0</version>
	    </dependency>
    </dependencies>
    <build>
	    <plugins>
		    <plugin>
			    <groupId>org.springframework.boot</groupId>
			    <artifactId>spring-boot-maven-plugin</artifactId>
		    </plugin>
	    </plugins>
    </build>
</project>
英文:
I'm new to the Springboot and Maven area and wanted to ask what I did wrong here / why it doesn't work that way.
Says, missing Maven dependency
Normally it should add after I type the annotation "@RestController" -> import org.springframework.web.bind.annotation.RestController;
What should I do?
My POM
<?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>2.3.1.RELEASE</version>
	    <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>de.martinm</groupId>
    <artifactId>SimpleTest</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>SimpleTest</name>
    <description>Test project using Spring</description>
	<properties>
    	<java.version>1.8</java.version>
    </properties>
	<dependencies>
    	<dependency>
	    	<groupId>org.springframework.boot</groupId>
		    <artifactId>spring-boot-starter</artifactId>
		</dependency>
		<dependency>
    		<groupId>org.springframework.boot</groupId>
	    	<artifactId>spring-boot-starter-test</artifactId>
		    <scope>test</scope>
			<exclusions>
    			<exclusion>
	    			<groupId>org.junit.vintage</groupId>
		    		<artifactId>junit-vintage-engine</artifactId>
			    </exclusion>
			</exclusions>
    	</dependency>
	    <dependency>
			<groupId>org.apache.maven</groupId>
    		<artifactId>maven-core</artifactId>
	    	<version>3.0</version>
		</dependency>
    </dependencies>
	<build>
    	<plugins>
	    	<plugin>
		    	<groupId>org.springframework.boot</groupId>
			    <artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
    	</plugins>
	</build>
</project>
答案1
得分: 11
@RestController注解包含在spring-web-X.X.X.jar中。
您需要在您的pom.xml文件中添加spring-boot-starter-web依赖项:
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
由 yl
英文:
@RestController annotation is included in spring-web-X.X.X.jar
You need to include spring-boot-starter-web dependency in your pom.xml file:
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>
	</dependency>
by yl
专注分享java语言的经验与见解,让所有开发者获益!

评论