Spring 使用 http://localhost/test 从浏览器调用时启动代码不起作用

Question

controller class:

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

@RestController  
public class HelloWorldController   
{  
    //using get method and hello-world as URI  
    // @GetMapping(path="/hello-world-bean")  
    @RequestMapping(method=RequestMethod.GET, value="/test")  
    public String sayHello()  
    {  
        return "Hello !!!";  
    }  
        
    @RequestMapping(method=RequestMethod.GET, value = "/getSquare/{number}")
    public int getSquareOfNumber(@PathVariable int number)
    {
        return number*number;
        
    }
}  

Application class:

package com.firstService.server.main;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class RestfulWebServicesApplication {

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

}

When I am trying to call url http://localhost/test (I am displaying Hello for url /hello), it is not getting called and showing me below error.

Answer 1

spring-boot-starter-web This dependency was missing in pom.xml. Thanks Nico !

I have added below dependency in pom.xml and url is changed to http://localhost:8080/hello

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

Answer 2

Can you try with explicitly adding port also on which your application is running like http://localhost:8080/test