第一步：新建业务模块目录，例如：ruoyi-test

第二步：在ruoyi-test业务模块下新建pom.xml文件以及src\main\java，src\main\resources目录

<?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">
    <parent>
        <artifactId>ruoyi</artifactId>
        <groupId>com.ruoyi</groupId>
        <version>x.x.x</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>ruoyi-test</artifactId>

    <description>
    	测试模块
    </description>

    <dependencies>

        <!-- 通用工具-->
        <dependency>
            <groupId>com.ruoyi</groupId>
            <artifactId>ruoyi-common</artifactId>
        </dependency>

    </dependencies>

</project>

第三步：根目录pom.xml依赖声明节点dependencies中添加依赖

<!-- 测试模块-->
<dependency>
    <groupId>com.ruoyi</groupId>
    <artifactId>ruoyi-test</artifactId>
    <version>${ruoyi.version}</version>
</dependency>

第四步：根目录pom.xml模块节点modules添加业务模块

<module>ruoyi-test</module>

第五步：ruoyi-admin目录pom.xml添加模块依赖

<!-- 测试模块-->
<dependency>
    <groupId>com.ruoyi</groupId>
    <artifactId>ruoyi-test</artifactId>
</dependency>

第六步：在ruoyi-test测试模块添加com.ruoyi.test.controller包，新建MyTestController.java

package com.ruoyi.test.controller;

import com.ruoyi.common.annotation.Anonymous;
import com.ruoyi.common.core.domain.AjaxResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@RestController
@RequestMapping("/test")
public class MyTestController {

    /**
     * 输出hellow word
     * @param response
     * @return
     * @throws IOException
     */
    @Anonymous
    @GetMapping("/printHellowWord")
    public AjaxResult demo(HttpServletResponse response) throws IOException
    {
        AjaxResult ajax = AjaxResult.success();
        ajax.put("str", "hellow word");
        return ajax;
    }
}

访问http://localhost:8080/test/printHellowWord，输出：