SpirngBoot整合MybatisPlus 附源码
作者：互联网
项目搭建
目录结构
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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.cyb</groupId>
<artifactId>springboot-mybatisplus</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springboot-mybatisplus</name>
<description>springboot整合mybatisplus</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!--SpringBoot依赖开始-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--SpringBoot依赖结束-->
<!--mysql依赖开始-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--mysql依赖结束-->
<!--MybatisPlus依赖开始-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.0</version>
</dependency>
<!--MybatisPlus依赖结束-->
<!--Junit测试依赖开始-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<!--Junit测试依赖结束-->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.properties
server.port=8080 #mysql spring.datasource.url=jdbc:mysql://localhost:3306/nba?useUnicode=true&characterEncoding=utf8 spring.datasource.username=root spring.datasource.password=root spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver #mybatis-plus mybatis-plus.mapper-locations=classpath:com/mht/springbootmybatisplus/mapper/xml/*.xml mybatis-plus.type-aliases-package=com.mht.springbootmybatisplus.entity mybatis-plus.configuration.map-underscore-to-camel-case: true
注入分页
MybatisPlusConfig.java
package com.cyb.config;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @ClassName：MybatisPlusConfig
* @Description：分页配置
* @Author：chenyb
* @Date：2020/9/24 9:31 上午
* @Versiion：1.0
*/
@Configuration
@ConditionalOnClass(value = PaginationInnerInterceptor.class)
public class MybatisPlusConfig {
@Bean
public PaginationInterceptor paginationInterceptor() {
PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
return paginationInterceptor;
}
}
dao层
NbaTestDao.java
package com.cyb.dao;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.cyb.entity.NbaTest;
public interface NbaTestDao extends BaseMapper<NbaTest> {
}
实体类
NbaTest.java
package com.cyb.entity;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import java.util.Date;
/**
* @ClassName：NbaPlayer
* @Description：实体类
* @Author：chenyb
* @Date：2020/9/23 4:29 下午
* @Versiion：1.0
*/
//表名
@TableName("nba_test")
public class NbaTest {
//表字段与实体类对应关系
@TableField("id")
@TableId
private int id;
@TableField("name")
private String name;
@TableField("age")
private int age;
@TableField("create_date")
private Date createDate;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Date getCreateDate() {
return createDate;
}
public void setCreateDate(Date createDate) {
this.createDate = createDate;
}
@Override
public String toString() {
return "NbaTest{" +
"id=" + id +
", name='" + name + '\'' +
", age=" + age +
", createDate=" + createDate +
'}';
}
}
启动类上扫描dao
数据库表字段
测试类
package com.cyb;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.cyb.dao.NbaTestDao;
import com.cyb.entity.NbaTest;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.Date;
import java.util.List;
@RunWith(SpringRunner.class)
@SpringBootTest(classes = StartApplication.class)
public class Test01 {
@Autowired
private NbaTestDao nbaTestDao;
/**
* 添加
*/
@Test
public void add() {
for (int x=0;x<100;x++){
NbaTest nbaTest=new NbaTest();
nbaTest.setAge(25+x);
nbaTest.setCreateDate(new Date());
nbaTest.setName("陈彦斌===="+x);
nbaTestDao.insert(nbaTest);
}
System.out.println("ok~~~~~~~~~");
}
/**
* 更新
*/
@Test
public void update(){
NbaTest nbaTest=new NbaTest();
nbaTest.setId(2);
nbaTest.setName("修改");
nbaTest.setAge(0);
nbaTestDao.updateById(nbaTest);
System.out.println("update=====");
}
/**
* 删除
*/
@Test
public void delete(){
nbaTestDao.deleteById(2);
System.out.println("delete==========");
}
/**
* 查询
*/
@Test
public void selete(){
QueryWrapper<NbaTest> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("name","陈彦斌====6");
List<NbaTest> nbaTests = nbaTestDao.selectList(queryWrapper);
System.out.println(nbaTests);
}
/**
* 分页查询
*/
@Test
public void seleteByPage(){
int start=2;
int end=5;
IPage<NbaTest> userPage=new Page<>(start,end);
QueryWrapper<NbaTest> queryWrapper = new QueryWrapper<>();
List<NbaTest> records = nbaTestDao.selectPage(userPage, queryWrapper).getRecords();
for (NbaTest nt:records){
System.out.println(nt);
}
}
}
搞定~
标签：mybatisplus,MybatisPlus,boot,源码,org,import,com,public,SpirngBoot 来源： https://www.cnblogs.com/chenyanbin/p/13722629.html