springboot写一个简单的接口样例

1、重新创建一个maven的工程，之前maven的配置在前面文章都已描述：

之后替换pom.xml的内容

具体xml内容如下，如果找不到版本可以到镜像仓库去查一下：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
 
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.0.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
 
    <groupId>com.kaven</groupId>
    <artifactId>springboot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
 
    <name>springboot</name>
    <description>springboot</description>
 
    <properties>
        <java.version>1.8</java.version>
    </properties>
 
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
 
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

 2、创建简单的类

在java目录下创建一个package

com.k8s.springboot

创建SpringbootApplication类，里面用于启动服务

 

package com.k8s.springboot;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@SpringBootApplication
public class SpringbootApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(SpringbootApplication.class, args);
    }
}

之后再同一级目录下创建controller文件夹，并创建HelloWorldController类文件：

package com.k8s.springboot.controller;
 
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
 
@RestController
public class HelloWorldController {
    @GetMapping("/helloworld")
    public String helloWorld() {
        return "Hello World";
    }
}

创建好后直接运行 

 

之后再访问 http://localhost:8080/helloworld

 

 初学java，也是参考了很多网上文章，希望对大家有帮助