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本文作者:低调小熊猫
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整合demo
配置依赖
<!--通用mapper-->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>2.0.2</version>
</dependency>
<!--分页插件-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.5</version>
</dependency>
<!-- MYSQL包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
配置静态资源文件
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
配置application.yml文件
spring:
datasource:
url:
password:
username:
# 如果想看到mybatis日志需要做如下配置
logging:
level:
com.hope: DEBUG
########## Mybatis 自身配置 ##########
mybatis:
mapper-locations: classpath:/mapper/*.xml
type-aliases-package: com.hope.model
# 驼峰命名规范 如:数据库字段是 order_id 那么 实体字段就要写成 orderId
#mybatis.configuration.map-underscore-to-camel-case=true
########## 通用Mapper ##########
# 主键自增回写方法,默认值MYSQL,详细说明请看文档
mapper:
identity: MYSQL
# 设置 insert 和 update 中,是否判断字符串类型!=''
not-empty: true
# 枚举按简单类型处理
enum-as-simple-type: true
########## 分页插件 ##########
pagehelper:
helper-dialect: mysql
params: count=countSql
reasonable: false
support-methods-arguments: true
然后自己创建model,mapper,xml,service
通用mapper的使用
import org.apache.ibatis.annotations.Mapper;
import tk.mybatis.mapper.common.BaseMapper;
@Mapper
public interface SysRoleMapper extends BaseMapper<SysRole>{
}
junitTest
idea快捷键生成junitTest
打开要测试的类,如果选择idea工具栏的Navigate,然后点击Test就行了
RunWith(SpringRunner.class)
@SpringBootTest
public class SysRoleServiceImplTest {
private static final Logger log = LoggerFactory.getLogger(SysRoleServiceImplTest.class);
@Autowired
private SysRoleServiceImpl sysRoleService;
@Test
public void test1(){
List<SysRole> sysRoleList=sysRoleService.SelectAll();
log.info("[普通写法] - [{}]", sysRoleList);
//分页
PageInfo<Object> pageInfo= PageHelper.startPage(1,1).doSelectPageInfo(() -> sysRoleService.SelectAll());
log.info("[分页]-[{}]",pageInfo);
}
}
Logger
打印比较详细
private static final Logger log = LoggerFactory.getLogger(SysRoleServiceImplTest.class);
log.info("[分页]-[{}]",pageInfo);
lambda
PageInfo<Object> pageInfo= PageHelper.startPage(1,1).doSelectPageInfo(() -> sysRoleService.SelectAll());
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