SpringBoot23 分模块开发

1 开发环境说明

　　JDK：1.8

　　MAVEN：3.5

　　IDEA：2017.2.5

　　SpringBoot：2.0.3.RELEASE

SpringBoot23 分模块开发

2 创建SpringBoot项目

　　2.1 项目信息

SpringBoot23 分模块开发

　　2.2 添加项目依赖

SpringBoot23 分模块开发

　　2.3 修改pom文件

　　　　添加lombok依赖、修改devtools、修改plugin

<?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>cn.xiangxu</groupId>

    <artifactId>module-demo</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <packaging>jar</packaging>

    <name>module-demo</name>

    <description>Demo project for Spring Boot</description>

    <parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>2.0.3.RELEASE</version>

        <relativePath/> <!-- lookup parent from repository -->

    </parent>

    <properties>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

        <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-devtools</artifactId>

            <optional>true</optional>

        </dependency>

        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->

        <dependency>

            <groupId>org.projectlombok</groupId>

            <artifactId>lombok</artifactId>

            <version>1.18.0</version>

            <scope>provided</scope>

        </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>

                <configuration>

                    <fork>true</fork>

                </configuration>

            </plugin>

        </plugins>

    </build>

</project>

3 逻辑功能实现

　　实现简单的增删改查，利用map来模拟内存数据库

　　3.1 包结构

SpringBoot23 分模块开发

　　3.2 model层

package cn.xiangxu.moduledemo.model;

import lombok.Data;

/**

 * @author 王杨帅

 * @create 2018-07-26 22:16

 * @desc 学生实体类

 **/

@Data

public class Student {

    private Integer id;

    private String name;

}

　　3.3 repository层

package cn.xiangxu.moduledemo.repository;

import cn.xiangxu.moduledemo.model.Student;

import org.springframework.stereotype.Repository;

import java.util.Collection;

import java.util.concurrent.ConcurrentHashMap;

import java.util.concurrent.ConcurrentMap;

import java.util.concurrent.atomic.AtomicInteger;

/**

 * @author 王杨帅

 * @create 2018-07-26 22:17

 * @desc 学生持久层

 **/

@Repository

public class StudentRepository {

    /**

     * 利用Map模拟内存数据库

     */

    private final ConcurrentMap<Integer, Student> repository =new ConcurrentHashMap<>();

    /**

     * 主键发生器

     */

    private final static AtomicInteger idGenerator = new AtomicInteger();

    /**

     * 新增

     * @param student

     * @return

     */

    public Student save(Student student) {

        // 产生ID

        Integer id = idGenerator.incrementAndGet();

        student.setId(id);

        student.setName(student.getName() + id);

        repository.put(id, student);

        return student;

    }

    /**

     * 获取列表

     * @return

     */

    public Collection<Student> findAll() {

        return repository.values();

    }

}

　　3.4 web层

package cn.xiangxu.moduledemo.controller;

import cn.xiangxu.moduledemo.model.Student;

import cn.xiangxu.moduledemo.repository.StudentRepository;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.*;

import java.util.Collection;

/**

 * @author 王杨帅

 * @create 2018-07-26 22:23

 * @desc 学生控制层

 **/

@RestController

@RequestMapping(value = "/student")

@Slf4j

public class StudentController {

    @Autowired

    private StudentRepository studentRepository;

    @GetMapping

    public Collection<Student> findAll() {

        return studentRepository.findAll();

    }

    @PostMapping

    public Student save(@RequestBody Student student) {

        return studentRepository.save(student);

    }

    @GetMapping(value = "/connect")

    public String connect() {

        String result = "前后端连接成功";

        log.info(result);

        return result;

    }

}