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springboot mybatis集成mapper与pagehelper

IT知识springboot

天下之事常成于困约，而败于奢靡。这篇文章主要讲述springboot mybatis集成mapper与pagehelper相关的知识，希望能为你提供帮助。
1、引入jar到pom.xml

< dependency>
< groupId> org.mybatis.spring.boot< /groupId>
< artifactId> mybatis-spring-boot-starter< /artifactId>
< version> 1.1.1< /version>
< /dependency>
< dependency>
< groupId> tk.mybatis< /groupId>
< artifactId> mapper< /artifactId>
< version> 3.4.0< /version>
< /dependency>
< !-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->
< dependency>
< groupId> com.github.pagehelper< /groupId>
< artifactId> pagehelper< /artifactId>
< version> 4.1.0< /version>
< /dependency>
2、配置mapper
创建application-bean.xml，文件内容如下
< ?xml version="1.0" encoding="UTF-8"?>
< beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
< !-- 注入spring boot无法扫描到的bean. -->
< bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
< property name="basePackage" value="https://www.songbingjia.com/android/study.boot.config。MyMapper" />
< property name="properties">
< value>
mappers=tk.mybatis.mapper.common.Mapper
< /value>
< /property>
< /bean>

< /beans>
 
3、创建配置类

import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;

@Configuration
@ImportResource(value=https://www.songbingjia.com/android/{"classpath:application-bean.xml"})
public class ConfigClass {

}
 
 
import java.util.Properties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.github.pagehelper.PageHelper;
@Configuration
public class MyBatisConfiguration {
private static final Logger logger = LoggerFactory.getLogger(MyBatisConfiguration.class);
@Bean
public PageHelper pageHelper() {
logger.info("注册MyBatis分页插件PageHelper");
PageHelper pageHelper = new PageHelper();
Properties p = new Properties();
p.setProperty("offsetAsPageNum", "true");
p.setProperty("rowBoundsWithCount", "true");
p.setProperty("reasonable", "true");
pageHelper.setProperties(p);
return pageHelper;
}
}
 
 
import tk.mybatis.mapper.common.Mapper;
import tk.mybatis.mapper.common.mysqlMapper;
public interface MyMapper< T> extends Mapper< T> , MySqlMapper< T> {
}
 
 
4、实际运用
mybatis的mapper继承通用mapper
@Mapper
public interface CityMapper extends MyMapper< City> {
}
直接使用
@RestController
@RequestMapping("/boot")
public class HelloWorld {
@Autowired
CityMapper cityMapper;
@RequestMapping("/hello")
public List< City> greeting() {
PageHelper.startPage(1, 5);
return cityMapper.selectAll();
}
【springboot mybatis集成mapper与pagehelper】}




























































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