Java Springboot:无法访问url
运行主类之后,我无法获得输出。 弹簧靴的新功能 控制器Java Springboot:无法访问url,java,spring,spring-mvc,spring-boot,Java,Spring,Spring Mvc,Spring Boot,运行主类之后,我无法获得输出。 弹簧靴的新功能 控制器 @Controller public class WelcomeController { private static final String welcomemsg = "Welcome Mr. %s!"; @GetMapping("/welcome/user") @ResponseBody public Welcome welcomeUser(@RequestParam(name = "name",
@Controller
public class WelcomeController {
private static final String welcomemsg = "Welcome Mr. %s!";
@GetMapping("/welcome/user")
@ResponseBody
public Welcome welcomeUser(@RequestParam(name = "name", required = false, defaultValue = "Java Fan") String name)
{
return new Welcome(String.format(welcomemsg, name));
}
}
主类
package com.beans.mainsrc;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication(scanBasePackages = { "com.beans" })
public class DemoApplication {
public static void main(String[] args)
{
SpringApplication.run(DemoApplication.class, args);
}
}
关于运行主类的控制台详细信息
2018-09-28 00:40:01.268 INFO 2304 --- [ main] com.beans.mainsrc.DemoApplication : Starting DemoApplication on DESKTOP-551C51M with PID 2304 (F:\springbootdemo\demo\target\classes started by sparsh in F:\springbootdemo\demo)
2018-09-28 00:40:01.273 INFO 2304 --- [ main] com.beans.mainsrc.DemoApplication : No active profile set, falling back to default profiles: default
2018-09-28 00:40:01.346 INFO 2304 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@3e08ff24: startup date [Fri Sep 28 00:40:01 IST 2018]; root of context hierarchy WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1 (file:/C:/Users/sparsh/.m2/repository/org/springframework/spring-core/5.0.9.RELEASE/spring-core-5.0.9.RELEASE.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release
2018-09-28 00:40:02.370 INFO 2304 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-09-28 00:40:02.392 INFO 2304 --- [ main] com.beans.mainsrc.DemoApplication : Started DemoApplication in 1.67 seconds (JVM running for 2.23)
2018-09-28 00:40:02.396 INFO 2304 --- [ Thread-1] s.c.a.AnnotationConfigApplicationContext : Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@3e08ff24: startup date [Fri Sep 28 00:40:01 IST 2018]; root of context hierarchy
2018-09-28 00:40:02.398 INFO 2304 --- [ Thread-1] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
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>springboot</groupId>
<artifactId>springbootdemo</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>2.0.5.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</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<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>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
4.0.0
弹簧靴
springbootdemo
0.0.1-快照
罐子
演示
SpringBoot的演示项目
org.springframework.boot
spring启动程序父级
2.0.5.1发布
UTF-8
UTF-8
1.8
org.springframework
弹簧网
org.springframework.boot
弹簧靴起动器
org.springframework.boot
弹簧起动试验
测试
org.springframework.boot
springbootmaven插件
看起来您的servlet容器没有启动。请尝试添加此maven依赖项
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
org.springframework.boot
SpringBootStarterWeb
您可以删除这些依赖项:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
org.springframework
弹簧网
org.springframework.boot
弹簧靴起动器
它们由建议的初学者提供。WelcomeController位于com.beans包下?是的,它位于该包下您试图在浏览器中访问哪个URL?localhost:8081\welcome\user。。。。。在application.properties中,我更改了端口请粘贴您的项目依赖项您非常出色,谢谢,只是为了学习您是如何解决的?@sparsh610对于spring boot开发,您可以使用Pivotal的STS,它会自动为开发人员创建具有必要依赖项的POM。这将使你免于此类麻烦。从日志中删除最后两行。应用程序试图初始化并注册到servlet容器(在启动时为JMX暴露注册bean),但失败。@PeteT将下载该应用程序。尽管我使用的是springinitilizer@AdinaFometescu谢谢adina,在将来解决这样的问题会很有帮助