1.简单搭建 SpringBoot+SqLite+MyBatis

工具：

IntelliJ IDEA 2018.2 x64

Navicat Premium 12

涉及：

SpringBoot

SqLite

MyBatis

Swagger2

Lombok

---

1、使用idea创建SpringBoot项目，添加web和MyBatis支持。

New Project

2、修改pom.xml文件。添加swagger、lombok、SQLite驱动支持。

<?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>com.lio</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

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

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.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.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- swagger 驱动 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.7.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.7.0</version>
        </dependency>

        <!-- druid 驱动 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.9</version>
        </dependency>

        <!-- lombok 驱动 -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.2</version>
        </dependency>

        <!-- SQLite 驱动 -->
        <dependency>
            <groupId>org.xerial</groupId>
            <artifactId>sqlite-jdbc</artifactId>
            <version>3.21.0.1</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

3、利用IDEA快速添加SqLite，点击IDEA右侧的 Database >> + >> Data Source >> Sqlite 。

Database

4、未添加过Sqlite驱动的需要添加驱动，点击 Sqlite（Xerial） >> + >> provided Drive >> Xerial SQLiteJDBC >> latest version。

Add Sqlite Driver

5、创建dome.db数据文件。
Name：数据源名称，随意填写。
File：指定数据文件，点击 + 号可创建文件，如果存在db文件则点击 ... 选择文件路径。
Test Connection：点击测试连接是否正常。

Create dome.db

6、用Navicat打开dome.db，创建user_info表。打开Navicat 将创建好的dome.db直接拖入Navicat即可，建表不做说明。

dome.db

7、为IDEA添加Lombok插件。
File >> Settings >> Plugins >> 输入lombok >> 点击安装

add Lombok Plugin

8、创建SwaggerConfig.java配置文件。

package com.lio.demo.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@Configuration
@EnableSwagger2
public class SwaggerConfig {
    @Bean
    public Docket createDocket() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.lio.demo.controller"))
                .paths(PathSelectors.any())
                .build();
    }

    public ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("MyBatis + SqLite 测试程序")
                .termsOfServiceUrl("NO terms of service")
                .version("1.0")
                .build();
    }
}

9、修改启动类，添加@EnableSwagger2注解，启用Swagger2。

package com.lio.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@SpringBootApplication
@EnableSwagger2
public class DemoApplication {

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

10、创建UserInfo的实体类，这里使用到Lombok的@Data注解。

package com.lio.demo.model;

import lombok.Data;

@Data
public class UserInfoModel {
    private Integer id;
    private String name;
    private Integer age;
    private String sex;
}

11、创建UserInfoDao，添加@Mapper注解，声明Mapper。

package com.lio.demo.dao;

import com.lio.demo.model.UserInfoModel;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.SelectProvider;
import org.springframework.stereotype.Component;

import java.util.List;

@Mapper
@Component
public interface UserInfoDao {

    @SelectProvider(type = UserInfoMapper.class,method = "findUserInfoList")
    List<UserInfoModel> findUserInfoList(String id);

}

12、创建UserInfoMapper。

package com.lio.demo.dao;

import com.alibaba.druid.util.StringUtils;
import org.apache.ibatis.jdbc.SQL;


public class UserInfoMapper {

    public String findUserInfoList(String id){
        SQL sql = new SQL();
        sql.SELECT("id,name,age,sex");
        sql.FROM("user_info");
        if(!StringUtils.isEmpty(id)){
            sql.WHERE("id=#{id}");
        }
        return sql.toString();
    }
}

13、创建UserInfoService。

package com.lio.demo.service;

import com.lio.demo.dao.UserInfoDao;
import com.lio.demo.model.UserInfoModel;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class UserInfoService {

    @Autowired
    private UserInfoDao userInfoDao;

    public List<UserInfoModel> findUserInfoList(String id){
        return userInfoDao.findUserInfoList(id);
    }
}

14、创建UserInfoController。

package com.lio.demo.controller;

import com.lio.demo.model.UserInfoModel;
import com.lio.demo.service.UserInfoService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
@RequestMapping(value = "/user")
@Api(value = "用户类" ,tags = "用户操作接口")
public class UserInfoController {

    @Autowired
    private UserInfoService userInfoService;

    @GetMapping(value = "/findUserInfoList")
    @ApiOperation(value="获取用户列表", notes="获取用户列表")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "用户ID", required = false, paramType = "query")
    })
    public List<UserInfoModel> findUserInfoList(String id){
        return userInfoService.findUserInfoList(id);
    }
}

15、至此代码已经写完了，启动程序进入Swagger测试。
Swagger地址：http://localhost:8080/swagger-ui.html

Swagger

代码已经上传至码云
源码下载
参考
mybatis官方文档
swagger2常用注解说明
Lombok介绍