学习spring-boot第一节demo运行与web启动

骑猪看日落 2022-07-15 00:15 127阅读 0赞

1.通过官网获取spring-boot的maven下载地址。

2.导出依赖jar

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3.创建一个web工程，加入jar包

![Image 1][]

4.test.java为demo

package test;
    
    import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
    import org.springframework.context.annotation.ComponentScan;
    import org.springframework.stereotype.Controller;
    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.ResponseBody;
    
    @Controller
    @ComponentScan
    @EnableAutoConfiguration
    public class Test {
    
    	@RequestMapping(value ="/hello/{id}", method = RequestMethod.GET)
    	@ResponseBody
    	public String sayHello(@PathVariable("id") String id){
    		return "hello123456"+id;
    	}
    }

5.Application.java程序启动类

package test;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
    import org.springframework.boot.builder.SpringApplicationBuilder;
    import org.springframework.boot.web.support.SpringBootServletInitializer;
    import org.springframework.context.annotation.ComponentScan;
    import org.springframework.stereotype.Controller;
    
    @Controller
    @ComponentScan
    @EnableAutoConfiguration
    public class Application extends SpringBootServletInitializer{
    	public static void main(String[] args) {  
            SpringApplication.run(Application.class, args);  
        }
    	
    	@Override    
        protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {    
            return application.sources(Application.class);    
        } 
    }

注意：main方法为boot默认jar启动方法。configure为web启动方式，需要继承springbootServletInitializer类，并重写configure方法。

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