首先项目大体结构:
pom.xml
<?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.xf</groupId> <artifactId>spring-boot-mybatis</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>spring-boot-mybatis</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.2.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> <!-- mysql 数据库驱动. --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!-- spring-boot mybatis依赖: 请不要使用1.0.0版本,因为还不支持拦截器插件, PageHelper 无法支持... --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.0</version> </dependency> <!-- 分页插件. 最低是4.1.5 --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>4.2.1</version> </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> </plugin> </plugins> </build> <repositories> <repository> <id>spring-snapshots</id> <name>Spring Snapshots</name> <url>https://repo.spring.io/snapshot</url> <snapshots> <enabled>true</enabled> </snapshots> </repository> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>spring-snapshots</id> <name>Spring Snapshots</name> <url>https://repo.spring.io/snapshot</url> <snapshots> <enabled>true</enabled> </snapshots> </pluginRepository> <pluginRepository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </pluginRepository> </pluginRepositories> </project>
application.properties
######################################################## ###datasource -- mysql\u7684\u6570\u636e\u5e93\u914d\u7f6e. ######################################################## spring.datasource.url = jdbc:mysql://localhost:3306/test spring.datasource.username = root spring.datasource.password = root spring.datasource.driverClassName = com.mysql.jdbc.Driver spring.datasource.max-active=20 spring.datasource.max-idle=8 spring.datasource.min-idle=8 spring.datasource.initial-size=10 logging.level.com.kfit=DEBUG
App
package com.xf.springbootmybatis; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @MapperScan("com.xf.*") public class App { public static void main(String[] args) { SpringApplication.run(App.class, args); } }
Demo
package com.xf.springbootmybatis.pojo; import java.util.Date; public class Demo { private int id;//主键. private String name;//姓名. public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } }
DemoMapper
package com.xf.springbootmybatis.mapper; import com.xf.springbootmybatis.pojo.Demo; import org.apache.ibatis.annotations.*; import java.util.List; public interface DemoMapper { @Select("select *from demo where name=#{name}") public List<Demo> likeName(String name); @Select("select *from demo where id=#{id}") public List<Demo> getById(long id); @Select("select name from demo where id=#{id}") public String getNameById(long id); @Insert("insert into demo(name) values(#{name})") @Options(useGeneratedKeys = true, keyProperty = "id", keyColumn = "id")//获取自增长id public void save(Demo demo); }
DemoService
package com.xf.springbootmybatis.service; import com.xf.springbootmybatis.mapper.DemoMapper; import com.xf.springbootmybatis.pojo.Demo; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.List; @Service public class DemoService { @Autowired private DemoMapper demoMapper; public List<Demo> likeName(String name){ return demoMapper.likeName(name); } @Transactional public void save(Demo demo){ demoMapper.save(demo); } }
Controller
package com.xf.springbootmybatis.controller; import com.github.pagehelper.PageHelper; import com.xf.springbootmybatis.pojo.Demo; import com.xf.springbootmybatis.service.DemoService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.util.List; @RestController public class DemoController { @Autowired private DemoService demoService; @RequestMapping("/likeName") public List<Demo> likeName(String name){ PageHelper.startPage(1,2); return demoService.likeName(name); } @RequestMapping("/save") public Demo save(){ Demo demo=new Demo(); demo.setName("嘿嘿"); demoService.save(demo); return demo; } }
config 分页配置
package com.xf.springbootmybatis.config; import com.github.pagehelper.PageHelper; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import java.util.Properties; @Configuration public class MyBatisConfiguration { @Bean public PageHelper pageHelper() { System.out.println("MyBatisConfiguration.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; } }
测试:
保存
查询分页