SpringBoot学习（第一天）

1.创建maven项目

2.添加依赖

 1  <parent>
 2         <groupId>org.springframework.boot</groupId>
 3         <artifactId>spring-boot-starter-parent</artifactId>
 4         <version>2.0.3.RELEASE</version>
 5     </parent>
 6 
 7     <dependencies>
 8         <dependency>
 9             <groupId>org.springframework.boot</groupId>
10             <artifactId>spring-boot-starter-web</artifactId>
11         </dependency>
12     </dependencies>

　　3.编写主程序 run(); 传入的class必须是 @SpringBootApplication 标注的

1 import org.springframework.boot.SpringApplication;
2 import org.springframework.boot.autoconfigure.SpringBootApplication;
3 
4 @SpringBootApplication
5 public class HellowordMainApplication {
6     public static void main(String[] args) {
7         SpringApplication.run(HellowordMainApplication.class);
8     }
9 }

　　4.编写Controller

 1 import org.springframework.stereotype.Controller;
 2 import org.springframework.web.bind.annotation.RequestMapping;
 3 import org.springframework.web.bind.annotation.ResponseBody;
 4 
 5 @Controller
 6 public class HelloController {
 7     @ResponseBody
 8     @RequestMapping("/hello")
 9     public String hello(){
10         return "hello";
11     }
12 }

　　5.简化部署

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

　　6.将应用打成jar包直接用 java -jar 运行

SpringBoot学习（第一天）

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