统一返回参数
public class R {
    private Integer code;
    private String msg;
    private Object obj;

    public static R build() {
        return new R();
    }

    public static R ok(String msg) {
        return new R(200, msg, null);
    }

    public static R ok(String msg, Object obj) {
        return new R(200, msg, obj);
    }

    public static R error(String msg) {
        return new R(500, msg, null);
    }

    public static R error(String msg, Object obj) {
        return new R(500, msg, obj);
    }

    private R() {
    }

    private R(Integer code, String msg, Object obj) {
        this.code = code;
        this.msg = msg;
        this.obj = obj;
    }

    public Integer getCode() {
        return code;
    }

    public R setCode(Integer code) {
        this.code = code;
        return this;
    }

    public String getMsg() {
        return msg;
    }

    public R setMsg(String msg) {
        this.msg = msg;
        return this;
    }

    public Object getObj() {
        return obj;
    }

    public R setObj(Object obj) {
        this.obj = obj;
        return this;
    }
}

启动类

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

打包类

@Configuration
@ComponentScan("com.ic.comm")
public class Rn {
}

spring.factories



org.springframework.boot.autoconfigure.EnableAutoConfiguration=com.ic.comm.Rn

pom.xml



<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>springfactorys</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.1.RELEASE</version>
    </parent>

    <dependencies>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <scope>provided</scope>
            <version>2.7.0</version>
        </dependency>


    </dependencies>

</project>

install 打包

另一个项目使用