前言

本文主要是针对SpringBoot2.0.2版本，实现整合mybatis、分页插件、druid等组件，实现完整的web服务，提供restful风格接口。

SpringBoot集成MyBatis有两种方式，一种简单的方式就是使用MyBatis官方提供的：
一、mybatis-spring-boot-starter （本文讲解的）
二、 另外一种方式也是我推荐的整合方式：
        就是仍然用类似mybatis-spring的配置方式，这种方式需要自己写一些代码，但是可以很方便的控制MyBatis的各项配置，与添加组件。参考：https://my.oschina.net/bianxin/blog/1602958

基础框架

①：在http://start.spring.io/，配置你的项目信息并下载我的是《2.0.2.RELEASE》，我的如下图：

添加整合相关的包：

<!-- 2.0后包含spring-boot-starter的web服务包 -->
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope>
</dependency>
<dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>1.3.2</version>
</dependency>
<dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.1.10</version>
</dependency>
<dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper-spring-boot-starter</artifactId><version>1.2.5</version>
</dependency>

唯一的属性配置文件

项目不使用application.properties文件 而使用更加简洁的application.yml文件（直接改后缀名）：

server:port: 8080
spring:application:name: user-centerdatasource:name: testurl: jdbc:mysql://127.0.0.1:3306/xinusername: rootpassword: root# 使用druid数据源type: com.alibaba.druid.pool.DruidDataSourcedriver-class-name: com.mysql.jdbc.Driverfilters: statmaxActive: 20initialSize: 1maxWait: 60000minIdle: 1timeBetweenEvictionRunsMillis: 60000minEvictableIdleTimeMillis: 300000validationQuery: select 'x'testWhileIdle: truetestOnBorrow: falsetestOnReturn: falsepoolPreparedStatements: truemaxOpenPreparedStatements: 20
mybatis:mapper-locations: classpath:mapping/*.xmltype-aliases-package: com.winter.model
#pagehelper分页插件
pagehelper:helperDialect: mysqlreasonable: truesupportMethodsArguments: trueparams: count=countSql
#日志级别
logging:level:com.xin.usercenter.dao: debug

别的东西和以前一样的，这样就整合完了。

分页实现代码：

public PageInfo<User> getUserBySearch(AppPage<User> page) {// TODO Auto-generated method stubPageHelper.startPage(page.getPageNum(),page.getPageSize());List<User> list=userDao.queryUserList(page.getParam());PageInfo<User> pageInfo = new PageInfo<User>(list);return pageInfo;
}

返回的PageInfo的数据结构如下：

{"total": 5,"list": [{"id": 1,"loginName": "admin","password": "123123","nickname": "ADMIN","type": 1,"state": 1,"note": "超级管理员","createTime": "2018-04-28 15:15:46","updateTime": "2018-04-28 15:16:37","updateUid": 1,"loginIp": null,"loginAddr": null},{"id": 2,"loginName": "bian","password": "123456","nickname": "Bian","type": 1,"state": 1,"note": "普通用户","createTime": "2018-06-21 11:25:31","updateTime": "2018-06-21 11:40:52","updateUid": 0,"loginIp": null,"loginAddr": null}],"pageNum": 1,"pageSize": 2,"size": 2,"startRow": 1,"endRow": 2,"pages": 3,"prePage": 0,"nextPage": 2,"isFirstPage": true,"isLastPage": false,"hasPreviousPage": false,"hasNextPage": true,"navigatePages": 8,"navigatepageNums": [1,2,3],"navigateFirstPage": 1,"navigateLastPage": 3,"firstPage": 1,"lastPage": 3
}

个人感觉官方返回的这个数据结构很完善了，所以就直接用PageInfo了。

源码地址：https://gitee.com/flying-cattle/earn_knife

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