1. 首先需要在springboot的启动类上面使用@SpringBootApplication注解,并且指定扫描的包的位置,如下:

    package com.example;

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

    @SpringBootApplication(scanBasePackages="com.example.controller") public class DemoApplication {

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

    } 这里如过需要扫描多个包可以这么写scanBasePackages={"com.xxx","com.xxx"}这种形式即可

2.其次在当前的pom.xml中指定springboot启动类:

<properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <!-- 这里是我本人的springboot启动类位置,请根据自己的情况改动,idea下面可以点出来的--> <start-class>com.example.DemoApplication</start-class> </properties> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <fork>true</fork> <mainClass>${start-class}</mainClass> </configuration> </plugin> </plugins> </build>

3.这里是我的controller:

	package com.example.controller;

	import org.springframework.stereotype.Controller;
	import org.springframework.web.bind.annotation.RequestMapping;
	import org.springframework.web.bind.annotation.ResponseBody;

	@Controller
	@RequestMapping("/home")
	public class TestController {

			@RequestMapping("/hello")
			@ResponseBody
			public String index(){
					return "hello world";
			}
	}

注意:以上的springboot版本是2.0.5.RELEASE版,不同版本可能会有所不同。 springboot启动后浏览器输入下面的URL即可 http://localhost:8080/home/hello