尝试完成Spring Boot教程:https://spring.io/guides/gs/spring-boot/#initial
这是我的课程:
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:“ mvn软件包&& java -jar target / gs-spring-boot-0.1.0.jar”时,我得到了:
“ C:\ Program Files \ Java \ jdk1.8.0_181 \ bin \ java.exe”
-Dmaven.multiModuleProjectDirectory = C:\ Users \Антон\ IdeaProjects \ SpringBootTest
“-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“ org.codehaus.classworlds.Launcher-Didea.version = 2018.2.3软件包&& java
-jar target / spring-boot-test-0.1.0.jar
无法解析命令行选项:无法识别的选项:-jar
我试图从Windows控制台和“ Maven项目”->“执行Maven目标”执行它。
找不到有关此错误的任何信息。
答案 0 :(得分:1)
打开命令提示符,然后转到pom.xml所在的位置
运行 mvn clean install
一旦您获得成功的消息构建
按cd目标转到目标文件夹
然后运行命令java -jar <file-name>.jar
或转到项目文件夹文件夹并直接运行:
mvn spring-boot:run
如果在运行时仍收到错误消息,则说明某些spring配置错误。
从https://start.spring.io/
创建新的Spring Boot应用程序
答案 1 :(得分:1)
您可以尝试从项目的根文件夹运行mv spring-boot:run
。
或者,运行mvn clean install
,清理不是默认目标,因此最好将清理目标添加到清理目标文件夹。