无法运行Spring启动测试应用程序

Question

尝试完成Spring Boot教程:https://Spring.io/guides/gs/spring-boot/#initial

以下是我的课程：

package hello;

import java.util.Arrays;

import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Bean
    public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
        return args -> {

            System.out.println("Let's inspect the beans provided by Spring Boot:");

            String[] beanNames = ctx.getBeanDefinitionNames();
            Arrays.sort(beanNames);
            for (String beanName : beanNames) {
                System.out.println(beanName);
            }

        };
    }

}

package hello;

import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestMapping;

@RestController
public class HelloController {

    @RequestMapping("/")
    public String index() {
        return "Greetings from Spring Boot!";
    }

}

和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>org.springframework</groupId>
    <artifactId>gs-spring-boot</artifactId>
    <version>0.1.0</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.5.RELEASE</version>
    </parent>

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

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


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

</project>

当我尝试使用以下命令运行它时：“mvn package&&java-jar target/gs-spring-boot-0.1.0.jar”，我得到的是：

“-dmaven.home=C:\program files\jetbrains\intellij IDEA 2018.2.3\plugins\maven\lib\maven3”

“-dclassworlds.conf=c:\Program Files\jetbrains\intellij IDEA 2018.2.3\plugins\maven\lib\maven3\bin\m2.conf”

“-javaagent:c:\program files\jetbrains\intellij IDEA 2018.2.3\lib\idea_rt.jar=63804:c:\program files\jetbrains\intellij IDEA 2018.2.3\bin”
-dfile.encoding=utf-8-classpath“c:\program files\jetbrains\intellij IDEA 2018.2.3\plugins\maven\lib\maven3\boot\plexus-classworlds-2.5.2.jar”

-didea.version=2018.2.3包&&java

-jar目标/spring-boot-test-0.1.0.jar

无法分析命令行选项：无法识别的选项：-jar

Answer 1

打开命令提示符并在得到消息build successful后转到pom.xml显示runmvn clean install的位置

通过cd目标转到目标文件夹，然后运行命令java-jar .jar

或转到project folder文件夹并直接运行：

mvn spring-boot:run

如果您在运行时仍然收到错误消息，则说明某些spring配置是错误的。

从https://start.spring.io/创建新的Spring Boot应用程序