概要：Mybatis plus 官网链接 ：https://mp.baomidou.com/guide/
一、依赖配置：
4.0.0 org.springframework.boot spring-boot-starter-parent2.2.6.RELEASE com.example demo0.0.1-SNAPSHOT demo Demo project for Spring Boot 1.8 org.springframework.boot spring-boot-starter-webmysql mysql-connector-javaruntime org.projectlombok lomboktrue com.baomidou mybatisplus-spring-boot-starter1.0.5 org.springframework.boot spring-boot-starter-testtest org.junit.vintage junit-vintage-enginecom.baomidou mybatis-plus3.3.1 org.springframework.boot spring-boot-maven-plugin
二、数据源和插件相关配置
- application.yml
server: port: 8080 servlet: context-path: / # Logger Config logging: level: com.baomidou.mybatisplus.samples.quickstart: debug
- db.properties
spring.datasource.jdbc-url = jdbc:mysql://localhost:3306/demo?serverTimezone=UTC&characterEncoding=utf8 spring.datasource.username = root spring.datasource.password = 123456 spring.datasource.driverClassName = com.mysql.cj.jdbc.Driver
- MybatisPlusConfig
package com.example.demo.config;
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@EnableTransactionManagement
@Configuration
@MapperScan("com.example.demo.mapper")
public class MybatisPlusConfig {
@Bean("paginationInterceptor")
public PaginationInterceptor paginationInterceptor() {
PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
paginationInterceptor.setDbType(DbType.MYSQL);
return paginationInterceptor;
}
}
- SqlSessionConfig
package com.example.demo.config;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean;
import org.apache.ibatis.plugin.Interceptor;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import javax.sql.DataSource;
@Configuration
@PropertySource("classpath:db/db.properties")
public class SqlSessionConfig {
private Logger logger = LoggerFactory.getLogger(SqlSessionConfig.class);
@Bean("myDatasource")
@ConfigurationProperties(prefix="spring.datasource")
public DataSource masterDataSource() {
return DataSourceBuilder.create().build();
}
@Bean("mySqlSessionFactoryBean")
public MybatisSqlSessionFactoryBean createSqlSessionFactory(@Qualifier("myDatasource") DataSource dataSource,
@Qualifier("paginationInterceptor") PaginationInterceptor paginationInterceptor) {
// MybatisSqlSessionFactory
MybatisSqlSessionFactoryBean sqlSessionFactoryBean = null;
try {
// 实例SessionFactory
sqlSessionFactoryBean = new MybatisSqlSessionFactoryBean();
// 配置数据源
sqlSessionFactoryBean.setDataSource(dataSource);
// 设置 MyBatis-Plus 分页插件
Interceptor [] plugins = {paginationInterceptor};
sqlSessionFactoryBean.setPlugins(plugins);
// 加载MyBatis配置文件
PathMatchingResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();
sqlSessionFactoryBean.setMapperLocations(resourcePatternResolver.getResources("classpath*:mapper/*.xml"));
} catch (Exception e) {
logger.error("Init SqlSessionFactory Error：{}", e.getMessage());
}
return sqlSessionFactoryBean;
}
@Bean
public MapperScannerConfigurer myGetMapperScannerConfigurer() {
MapperScannerConfigurer myMapperScannerConfigurer = new MapperScannerConfigurer();
myMapperScannerConfigurer.setbasePackage("com.example.demo.mapper");
myMapperScannerConfigurer.setSqlSessionFactoryBeanName("mySqlSessionFactoryBean");
return myMapperScannerConfigurer;
}
}
三、测试类
- UserController
package com.example.demo.controller;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.example.demo.bean.UserDTO;
import com.example.demo.entity.User;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import java.time.LocalDateTime;
import java.util.List;
@RestController
@RequestMapping(value = "/demo")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping(value = "/create", method = RequestMethod.POST)
public String create(@RequestBody UserDTO userDTO){
User user = new User();
user.setName(userDTO.getName());
user.setPhone(userDTO.getPhone());
user.setCreateTime(LocalDateTime.now());
user.setEnable(true);
user.setVersion(1L);
userService.insert(user);
return "ok";
}
@RequestMapping(value = "/delete", method = RequestMethod.POST)
public String create(Long id){
userService.deleteById(id);
return "ok";
}
@RequestMapping(value = "/update", method = RequestMethod.POST)
public String update(@RequestBody UserDTO userDTO){
User user = new User();
user.setId(userDTO.getId());
user.setName(userDTO.getName());
user.setPhone(userDTO.getPhone());
user.setCreateTime(LocalDateTime.now());
userService.updateById(user);
return "ok";
}
@RequestMapping(value = "/queryPage", method = RequestMethod.POST)
public List update(Integer pageNo, Integer pageSize){
Page page = new Page<>(pageNo, pageSize);
return userService.queryList(page, 1);
}
}
- UserService
package com.example.demo.service.impl;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.example.demo.mapper.UserMapper;
import com.example.demo.entity.User;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.Optional;
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
@Override
public int insert(User user) {
return userMapper.insert(user);
}
@Override
public int deleteById(Long id) {
return userMapper.deleteById(id);
}
@Override
public int updateById(User user) {
return userMapper.updateById(user);
}
@Override
public List queryList(Page page, Integer enable) {
return userMapper.selectPageByEnable(page, enable).getRecords();
}
}
- UserMapper
package com.example.demo.mapper; import com.baomidou.mybatisplus.core.mapper.baseMapper; import com.baomidou.mybatisplus.core.metadata.IPage; import com.baomidou.mybatisplus.extension.plugins.pagination.Page; import com.example.demo.entity.User; import org.apache.ibatis.annotations.Mapper; import org.springframework.stereotype.Repository; @Mapper @Repository public interface UserMapper extends baseMapper{ IPage selectPageByEnable(Page page, Integer enable); }
- User
package com.example.demo.entity;
import com.baomidou.mybatisplus.annotation.*;
import lombok.Data;
import java.time.LocalDateTime;
@Data
@TableName("user")
public class User{
@TableId(value = "id", type = IdType.AUTO)
private Long id;
@TableField("name")
private String name;
@TableField("phone")
private String phone;
@TableField("create_time")
private LocalDateTime createTime;
@TableLogic(delval = "0", value = "1")
@TableField("enable")
private boolean enable;
@Version
@TableField("version")
private Long version;
}
- SqlMap
- DDL
CREATE TABLE `user` ( `id` bigint NOT NULL AUTO_INCREMENT, `name` varchar(20) NOT NULL, `phone` char(11) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL, `enable` tinyint NOT NULL, `create_time` datetime NOT NULL, `version` bigint NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
到此这篇关于MyBatis Plus之逻辑删除和分页插件使用的文章就介绍到这了,更多相关MyBatis Plus逻辑删除内容请搜索考高分网以前的文章或继续浏览下面的相关文章希望大家以后多多支持考高分网！
