从零开始整SpringBoot-搭建一个企业级项目

创建Springboot项目

在企业里的项目多数是分Modules的，更多是通过物理方式隔离层之间的职责。

首先按照原有新建SpringBoot项目创建，填好相关信息后，选择Java 8其他不用选。

完成后得到上面的结构，把红色选中的相关模块删除后，得到下面的项目结构

新建Module

什么都不需要选，下一步

填好Name后（注意前缀统一，通过-进行分割）点击完成，得出以下结构。

重复上面步骤，把sikiro-system-infrastructure、sikiro-system-repository新增上去，得到下面结构

添加项目依赖

sikiro-om-api->sikiro-om-application->sikiro-om-repository，sikiro-om-infrastructure被三层直接依赖

一共有两种方式添加：

在File->Project Structure->Modules，点击右侧的+，选择Module。

另外一种在pom.xml添加dependencies

<?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>om</artifactId>
        <groupId>sikiro.system</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>sikiro-system-api</artifactId>

    <dependencies>
        <dependency>
            <groupId>sikiro.system</groupId>
            <artifactId>sikiro-system-application</artifactId>
            <version>1.0.0</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>sikiro.system</groupId>
            <artifactId>sikiro-system-infrastructure</artifactId>
            <version>1.0.0</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>
</project>

添加Package

在sikiro-system-api项目添加新package-com.sikiro.system.api，同时添加SikiroSystemApiApplication

@SpringBootApplication()
@ComponentScan(basePackages = {"com.sikiro.system"})
public class SikiroSystemApiApplication {
    public static void main(String[] args) {
        SpringApplication.run(SikiroSystemApiApplication.class, args);
    }
}

然后继续添加HelloController到新的package-com.sikiro.system.api.controller

@RestController
public class HelloController {

    @GetMapping("/api/hi")
    public ApiResult Hi(){
        return ApiResult.Success();
    }
}

在sikiro-system-infrastructure添加下面两个类

package com.sikiro.system.infrastructure.base;

import lombok.AccessLevel;
import lombok.Setter;

/**
 * API统一响应实体
 * @param <T> 业务实体
 */
public class ApiResult<T> {

    @Setter(AccessLevel.PRIVATE)
    public int resultCode;

    @Setter(AccessLevel.PRIVATE)
    public T data;

    @Setter(AccessLevel.PRIVATE)
    public String message;

    @Setter(AccessLevel.PRIVATE)
    public boolean success;

    @Setter(AccessLevel.PRIVATE)
    public boolean failed;

    @Setter(AccessLevel.PRIVATE)
    public boolean error;

    public static <T> ApiResult<T> Success() {
        return Success(ApiResultCode.Succeed.Message(), null, ApiResultCode.Succeed.Value());
    }

    public static <T> ApiResult<T> Success(T data) {
        return Success(ApiResultCode.Succeed.Message(), data, ApiResultCode.Succeed.Value());
    }

    public static <T> ApiResult<T> Success(String msg) {
        return Success(msg, null);
    }

    public static <T> ApiResult<T> Success(String msg, T data, int code) {
        ApiResult<T> result = new ApiResult<>();
        result.setMessage(msg);
        result.setData(data);
        result.setResultCode(code);
        result.setSuccess(true);
        result.setFailed(false);
        result.setError(false);

        return result;
    }

    public static <T> ApiResult<T> Success(String msg, T data) {
        return Success(msg, data, ApiResultCode.Succeed.Value());
    }

    public static <T> ApiResult<T> Failed() {
        return Failed(ApiResultCode.Failed.Message(), null, ApiResultCode.Failed.Value());
    }

    public static <T> ApiResult<T> Failed(String msg) {
        return Failed(msg, null);
    }

    public static <T> ApiResult<T> Failed(String msg, T data) {
        return Failed(msg, data, ApiResultCode.Failed.Value());
    }

    public static <T> ApiResult<T> Failed(String msg, T data, int code) {
        ApiResult<T> result = new ApiResult<>();
        result.setMessage(msg);
        result.setData(data);
        result.setResultCode(code);

        result.setSuccess(false);
        result.setFailed(true);
        result.setError(false);

        return result;
    }

    public static <T> ApiResult<T> Error(String msg) {
        ApiResult<T> result = new ApiResult<>();
        result.setMessage(msg);
        result.setResultCode(ApiResultCode.Error.Value());

        result.setSuccess(false);
        result.setFailed(true);
        result.setError(true);

        return result;
    }
}

package com.sikiro.system.infrastructure.base;

public enum ApiResultCode {

    Succeed(200,"请求成功"),
    Failed(400,"请求失败"),
    Error(500,"服务执行异常");

    private int _index;
    private String _msg;

    ApiResultCode(int index, String msg) {
        _index = index;
        _msg = msg;
    }

    public int Value() {
        return _index;
    }
    public String Message() {
        return _msg;
    }

}

最后编辑启动配置