Spring Boot configuration and use
1. Configuration of maven file
1. Configuration location
Configure in the settings.xml of conf under the maven file:
<mirrors>
<mirror>
<id>nexus-aliyun</id>
<mirrorOf>central</mirrorOf>
<name>Nexus aliyun</name>
<url>http://maven.aliyun.com/nexus/content/groups/public</url>
</mirror>
</mirrors>
<profiles>
<profile>
<id>jdk-1.8</id>
<activation>
<activeByDefault>true</activeByDefault>
<jdk>1.8</jdk>
</activation>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
</properties>
</profile>
</profiles>
2. Introduce Spring Boot dependencies
1. Modify the pom.xml file
1. Stick or modify files in the pom.xml file
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.4.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
3. Create the main program
/**
* 主程序类
* @SpringBootApplication：这是一个SpringBoot应用
*/
@SpringBootApplication
public class MainApplication {
public static void main(String[] args) {
SpringApplication.run(MainApplication.class,args);
}
}
4. Create business code (controller)
/*
告诉控制器这是一个访问控制器
*/
@RestController
public class HelloController {
//访问路由
@RequestMapping("/hello")
public String handle01(){
return "Hello, Spring Boot 2!";
}
}
5. The configuration file of the entire program
- Create application.properties file in main/resources
6. Packaged into a jar package
1. Modify the pom.xml file
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
2. Run clean and package files
-maven-plugin
### 2. 运行clean和package文件
