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Spring整合myBaties -- xml形式

作者：互联网

前言

刚接触到spring就被spring整合myBaties搞蒙了,在此整理一个顺序,以备后面需要.

第一步 在pom.xml中导入需要的坐标

<dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.3.12</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>RELEASE</version>
            <scope>compile</scope>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.8</version>
        </dependency>

        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.7.16</version>
        </dependency>

        <!--slf4j日志-->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.21</version>
        </dependency>

        <!--mysql连接驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.46</version>
        </dependency>

        <!--druid-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.8</version>
        </dependency>

        <!--mybatis核心坐标-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.1</version>
        </dependency>

        <!--mybatis提供的与spring整合的坐标-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.1</version>
        </dependency>
        <!--tx-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.13.RELEASE</version>
        </dependency>

        <!--junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!--spring整合junit坐标-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.2.13.RELEASE</version>
        </dependency>

        <!--pageHelper分页坐标-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.2.0</version>
        </dependency>
    </dependencies>

第二步 创建实体类

import lombok.Data;

@Data
public class User {
    private String username;
    private String password;
}

第三步 创建mapper类和service类

mapper
这边为了方便直接写了注解

import com.guoliu.pojo.User;
import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface UserMapper {
    @Select("select * from `user`")
    List<User> findAll();
}

service


import com.guoliu.pojo.User;

import java.util.List;

public interface UserService {
    List<User> findAll();
}

service实现类

import com.guoliu.mapper.UserMapper;
import com.guoliu.pojo.User;
import com.guoliu.service.UserService;

import java.util.List;

public class UserServiceImpl implements UserService {
    private UserMapper userMapper;

    public void setUserMapper(UserMapper userMapper) {
        this.userMapper = userMapper;
    }

    public List<User> findAll() {
        return userMapper.findAll();
    }
}

第四步 编写配置文件

druid.properties

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/db9
jdbc.username=root
jdbc.password=guoliu

spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

    <!--1.导入资源配置文件-->
    <context:property-placeholder location="classpath:druid.properties"/>

    <!--2.配置数据源-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driverClassName}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!--3.将mybaties交给spring管理-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--3.1注入数据源-->
        <property name="dataSource" ref="dataSource"/>
        <!--3.2注入映射配置文件位置-->
        <property name="typeAliasesPackage" value="com.guoliu.pojo"/>
        <!--分页插件-->
        <property name="plugins">
            <array>
                <bean class="com.github.pagehelper.PageInterceptor">
                    <property name="properties">
                        <props>
                            <!--指定方言：指定数据源底层默认使用的数据库-->
                            <prop key="dialectHelper">mysql</prop>
                            <prop key="reasonable">true</prop>
                        </props>
                    </property>
                </bean>
            </array>
        </property>
    </bean>

    <!--4.mapper代理对象:扫描器-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--4.1注入sqlSessionFactory对象-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--4.2basePackage:指定需要生成代理对象的接口包-->
        <property name="basePackage" value="com.guoliu.mapper"/>
    </bean>

    <!--5.service-->
    <bean id="userService" class="com.guoliu.service.impl.UserServiceImpl">
        <!--注入mapper对象-->
        <property name="userMapper" ref="userMapper"/>
    </bean>
</beans>

第五步 测试

import com.guoliu.pojo.User;
import com.guoliu.service.UserService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.util.List;

public class controller {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("spring.xml");
        UserService service = ac.getBean(UserService.class);
        List<User> list = service.findAll();
        System.out.println(list);
    }
}

标签：myBaties,xml,--,spring,guoliu,import,org,com,public
来源： https://blog.csdn.net/weixin_47303159/article/details/121588576