SpringBoot集成Mybatis Plus

Mybatis Plus是Mybatis的升级版本，提供一些默认的功能实现，只要按照其约定编写代码，就可以充分利用其特性。

SpringBoot集成Mybatis Plus步骤：

1、修改POM，添加Mybatis Plus依赖

在这里插入图片描述

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
    <!-- 定义公共资源版本 -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.6.RELEASE</version>
        <relativePath/>
    </parent>
  
  <groupId>com.test</groupId>
  <artifactId>EC5_Proj</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>EC5_Proj Maven Webapp</name>
  <url>http://maven.apache.org</url>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
		<!--JSP支持的依赖-->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <!--
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.0</version>
        </dependency>
        -->
        
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatisplus-spring-boot-starter</artifactId>
            <version>1.0.5</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>2.1.8</version>
        </dependency>
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper</artifactId>
            <version>3.4.5</version>
        </dependency>

        <!-- 数据源依赖 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.6</version>
            <exclusions>
                <exclusion>
                    <groupId>com.alibaba</groupId>
                    <artifactId>jconsole</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.alibaba</groupId>
                    <artifactId>tools</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- 数据库驱动依赖 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!-- 分页插件 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.1.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-solr</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils-core</artifactId>
            <version>1.8.3</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
            <scope>true</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
          <scope>compile</scope>
        </dependency>

        <!--
        <dependency>
          <groupId>com.test</groupId>
          <artifactId>gfdev</artifactId>
                <version>2.0</version>
                <scope>system</scope>
                <systemPath>${basedir}/src/lib/gfdev-2.0.jar</systemPath>
        </dependency>
        -->
    </dependencies>
  <build>
    <finalName>EC4_Proj</finalName>
	<plugins>
		<plugin>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-maven-plugin</artifactId>
			<configuration>
				<fork>true</fork>
			</configuration>
		</plugin>
	</plugins>
  </build>
</project>

2、修改application.properties配置文件

在这里插入图片描述

#SpringBoot服务端口配置
server.port=6060
server.context-path=/

#spring.resources.static-locations=/css,/images,/img,/js

#SpringMVC JSP目录配置
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp

#Http编码配置   
spring.http.encoding.force=true
spring.http.encoding.charset=UTF-8
spring.http.encoding.enabled=true

#Rabbitmq配置     
spring.rabbitmq.host=192.168.25.1
spring.rabbitmq.port=5672
spring.rabbitmq.username=admin2
spring.rabbitmq.password=admin2
spring.rabbitmq.virtual-host=/

spring.redis.database=0
spring.redis.host=localhost
spring.redis.port=6379
spring.redis.password=redis
spring.redis.pool.max-active=8
spring.redis.pool.max-wait=-1
spring.redis.pool.max-idle=8
spring.redis.pool.min-idle=0
spring.redis.timeout=0


#数据源配置    
spring.datasource.name=w1
spring.datasource.url=jdbc:mysql://localhost:3306/w1?useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.maxActive=20
spring.datasource.initialSize=1
spring.datasource.maxWait=60000
spring.datasource.minIdle=1

#Mybatis实体类配置    
#mybatis.mapper-locations=classpath:mapper/*.xml

#Mybatis实体类配置    
mybatis-plus.mapper-locations: classpath:mapper/*.xml

#Solr配置    
spring.data.solr.host=http://localhost:8984/solr/new_core

#日志配置
logging.file=d:/springboot.log
logging.level.com.test.mapper=DEBUG
logging.level.com.test.servlet=DEBUG
logging.level.com.test.service.impl=DEBUG

3、定义实体类

package com.test.model;

import java.io.Serializable;
import java.sql.Date;

import com.baomidou.mybatisplus.annotations.TableField;
import com.baomidou.mybatisplus.annotations.TableId;
import com.baomidou.mybatisplus.annotations.TableName;
import com.baomidou.mybatisplus.enums.IdType;

//实体类
@TableName("t_good")
public class GoodInfo implements Serializable{
	@TableId(type=IdType.AUTO)
	private Integer id = null;
	private Integer no = null;
	private String name = null;
	private String brand = null;
	private Integer tid = null;
	private Date dt = null;
	@TableField(exist=false)
	private String tname = null;
	private Integer imgId = null;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	
	public Integer getNo() {
		return id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getBrand() {
		return brand;
	}
	public void setBrand(String brand) {
		this.brand = brand;
	}
	public Integer getTid() {
		return tid;
	}
	public void setTid(Integer tid) {
		this.tid = tid;
	}
	public Date getDt() {
		return dt;
	}
	public void setDt(Date dt) {
		this.dt = dt;
	}
	public String getTname() {
		return tname;
	}
	public void setTname(String tname) {
		this.tname = tname;
	}
	public Integer getImgId() {
		return imgId;
	}
	public void setImgId(Integer imgId) {
		this.imgId = imgId;
	}
	
}

package com.test.model;

import java.io.Serializable;
import java.sql.Date;

import com.baomidou.mybatisplus.annotations.TableId;
import com.baomidou.mybatisplus.annotations.TableName;

//实体类
@TableName("t_type")
public class GoodTypeInfo implements Serializable{
	@TableId
	private Integer id = null;
	private String name = null;
	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;
	}
	
}

4、定义Mapper

package com.test.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

import com.baomidou.mybatisplus.mapper.BaseMapper;
import com.test.model.GoodInfo;
import com.test.model.GoodTypeInfo;

@Mapper
public interface GoodMapper extends BaseMapper<GoodInfo>{
	public List<GoodInfo> findGood(@Param("name") String name);
	public GoodInfo findGoodById(@Param("id") Integer id);
	public List<GoodTypeInfo> findType();
}

5、定义服务接口

package com.test.service;

import java.util.List;

import org.apache.ibatis.annotations.Param;

import com.baomidou.mybatisplus.service.IService;
import com.test.model.GoodInfo;
import com.test.model.GoodTypeInfo;

public interface IGoodService extends IService<GoodInfo>{
	public List<GoodInfo> findGood(String name);
	public Boolean saveGood(GoodInfo gi);
	public Boolean updateGood(GoodInfo gi);
	public Boolean deleteGood(Integer id);
	public GoodInfo findGoodById(Integer id);
	public List<GoodTypeInfo> findType();
}

6、服务实现类

package com.test.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.baomidou.mybatisplus.service.impl.ServiceImpl;
import com.test.mapper.GoodMapper;
import com.test.model.GoodInfo;
import com.test.model.GoodTypeInfo;
import com.test.service.IGoodService;

@Service
public class GoodServiceImpl extends ServiceImpl<GoodMapper,GoodInfo> 
	implements IGoodService{
	@Autowired
	private GoodMapper mapper;


	@Override
	public Boolean saveGood(GoodInfo gi) {
		try
		{
			mapper.insert(gi);
			return true;
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		return false;
	}

	@Override
	public Boolean updateGood(GoodInfo gi) {
		try
		{
			mapper.updateById(gi);
			return true;
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		return false;
	}

	@Override
	public Boolean deleteGood(Integer id) {
		try
		{
			mapper.deleteById(id);
			return true;
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		return false;
	}

	@Override
	public GoodInfo findGoodById(Integer id) {
		try
		{
			return mapper.findGoodById(id);
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		return null;
	}

	@Override
	public List<GoodTypeInfo> findType() {
		try
		{
			return mapper.findType();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		return null;
	}

	@Override
	public List<GoodInfo> findGood(String name) {
		return mapper.findGood(name);
	}

}

代码：https://pan.baidu.com/s/1eTNkOZtrgWA1aw8OXsxIBw

SpringBoot集成Mybatis Plus

1、修改POM，添加Mybatis Plus依赖

2、修改application.properties配置文件

3、定义实体类

4、定义Mapper

5、定义服务接口

6、服务实现类

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