Spring02注解整合mybatis

结构图

1. config

JDBCConfig

package com.ding.config;

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;

import javax.sql.DataSource;

/**
 * @Description TODO
 * @Author 丁帅帅
 * @Date 21/07/26 09:23
 * @Version 1.0
 */
public class JDBCConfig {

    @Value("${jdbc.driver}")
    private String driver;
    @Value("${jdbc.url}")
    private String url;
    @Value("${jdbc.username}")
    private String userName;
    @Value("${jdbc.password}")
    private String password;

    @Bean("dataSource")
    public DataSource getDataSource(){
        DruidDataSource ds = new DruidDataSource();
        ds.setDriverClassName(driver);
        ds.setUrl(url);
        ds.setUsername(userName);
        ds.setPassword(password);
        return ds;
    }
}

MyBatisConfig

package com.ding.config;

import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;

import javax.sql.DataSource;

/**
 * @Description TODO
 * @Author 丁帅帅
 * @Date 21/07/26 09:29
 * @Version 1.0
 */
public class MyBatisConfig {

    @Bean
    public SqlSessionFactoryBean getSqlSessionFactoryBean(@Autowired DataSource dataSource){
        SqlSessionFactoryBean ssfb = new SqlSessionFactoryBean();
        ssfb.setTypeAliasesPackage("com.ding.domain");
        ssfb.setDataSource(dataSource);
        return ssfb;
    }

    @Bean
    public MapperScannerConfigurer getMapperScannerConfigurer(){
        MapperScannerConfigurer msc = new MapperScannerConfigurer();
        msc.setBasePackage("com.ding.dao");
        return msc;
    }

}

SpringConfig

package com.ding.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.PropertySource;

/**
 * @Description TODO
 * @Author 丁帅帅
 * @Date 21/07/26 09:34
 * @Version 1.0
 */
@Configuration
@ComponentScan("com.ding")
@PropertySource("classpath:jdbc.properties")
@Import({JDBCConfig.class,MyBatisConfig.class})
public class SpringConfig {
}

2. dao

AccountDao

package com.ding.dao;

import com.ding.domain.Account;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import java.util.List;

/**
 * @Description TODO
 * @Author 丁帅帅
 * @Date 21/07/26 09:37
 * @Version 1.0
 */
public interface AccountDao {

    @Insert("insert into account(name,money)values(#{name},#{money})")
    void save(Account account);

    @Delete("delete from account where id = #{id} ")
    void delete(Integer id);

    @Update("update account set name = #{name} , money = #{money} where id = #{id} ")
    void update(Account account);

    @Select("select * from account")
    List<Account> findAll();

    @Select("select * from account where id = #{id} ")
    Account findById(Integer id);
}

3.domain

Account

package com.ding.domain;

/**
 * @Description TODO
 * @Author 丁帅帅
 * @Date 21/07/26 09:39
 * @Version 1.0
 */
import java.io.Serializable;

public class Account implements Serializable {

    private Integer id;
    private String name;
    private Double money;

    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 Double getMoney() {
        return money;
    }

    public void setMoney(Double money) {
        this.money = money;
    }

    @Override
    public String toString() {
        return "Account{" +
                "id=" + id +
                ", name=‘" + name + ‘\‘‘ +
                ", money=" + money +
                ‘}‘;
    }
}

4.service

AccountService

package com.ding.service;

import com.ding.domain.Account;

import java.util.List;

/**
 * @Description TODO
 * @Author 丁帅帅
 * @Date 21/07/26 09:45
 * @Version 1.0
 */
public interface AccountService {

    void save(Account account);

    void delete(Integer id);

    void update(Account account);

    List<Account> findAll();

    Account findById(Integer id);
}

AccountServiceImpl

package com.ding.service.impl;

import com.ding.dao.AccountDao;
import com.ding.domain.Account;
import com.ding.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * @Description TODO
 * @Author 丁帅帅
 * @Date 21/07/26 09:48
 * @Version 1.0
 */
@Service("accountService")
public class AccountServiceImpl implements AccountService {


    @Autowired
    private AccountDao accountDao;

    public void save(Account account) {

         accountDao.save(account);
    }

    public void delete(Integer id) {

        accountDao.delete(id);
    }

    public void update(Account account) {

        accountDao.update(account);
    }

    public List<Account> findAll() {

        return accountDao.findAll();
    }

    public Account findById(Integer id) {
        return accountDao.findById(id);
    }
}

5.resource

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/spring_db
jdbc.username=root
jdbc.password=root

6. test

UserServiceTest

package com.ding.service;

import com.ding.config.SpringConfig;
import com.ding.domain.Account;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;

/**
 * @Description TODO
 * @Author 丁帅帅
 * @Date 21/07/26 09:55
 * @Version 1.0
 */
//设定spring专用的类加载器
@RunWith(SpringJUnit4ClassRunner.class)

//设定加载的spring上下文对应的配置
@ContextConfiguration(classes = SpringConfig.class)
public class UserServiceTest {

    @Autowired
    private AccountService accountService;

    @Test
    public void testFindById(){
        Account ac = accountService.findById(1);
       // System.out.println(ac);
        Assert.assertEquals("jeff",ac.getName());

    }

    @Test
    public void testFindAll(){
        List<Account> list=accountService.findAll();
        Assert.assertEquals(2,list.size());
    }
}

7.pom

<?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.ding</groupId>
    <artifactId>Spring_day02_02_注解整合mybatis</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.3</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.16</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.1.9.RELEASE</version>
        </dependency>
    </dependencies>

</project>

Spring02注解整合mybatis

原文：https://www.cnblogs.com/dss-99/p/15060530.html