mybatis

sqlMapConfig.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!--开发环境-->
    <environments default="development">
        <environment id="development">
            <!--事务管理-->
            <transactionManager type="JDBC"></transactionManager>
            <!--连接池-->
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"></property>
                <property name="url" value="jdbc:mysql://localhost:3306/jdbc?characterEncoding=utf-8"></property>
                <property name="username" value="root"></property>
                <property name="password" value="123456"></property>
            </dataSource>
        </environment>
    </environments>
<mappers>
    <mapper resource="com/zhongruan/dao/UserMapper1.xml"></mapper>
</mappers>


</configuration>

jdbc的sql语句

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.zhongruan.dao.IUserdao">
<select id="findAll" resultType="com.zhongruan.bean.User">
    select * from user;
</select>
    <delete id="deleteById" parameterType="int">
        delete from user where id=#{id};
    </delete>
    <update id="updateById" parameterType="com.zhongruan.bean.User">
        update user set password=#{password} where id=#{id};
    </update>
    <insert id="insert" parameterType="com.zhongruan.bean.User">
        insert into user(password,type) values(#{password},1);
    </insert>

</mapper>

Bean中User属性

public class User {
    private int id;
    private String password;
    private String type;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", password='" + password + '\'' +
                ", type='" + type + '\'' +
                '}';
    }
}

dao包中的代码

public interface IUserdao {
    List<User> findAll();
    void deleteById(int id);
    void updateById(User user);
    void insert(User user);
}

写个Test测试文件

public class Test {
    public static void main(String[] args) throws IOException {
        Reader resourceAsReader = Resources.getResourceAsReader("sqlMapConfig.xml");
        SqlSessionFactory build=new SqlSessionFactoryBuilder().build(resourceAsReader);
        SqlSession session=build.openSession();
        List<User> userList=session.selectList("findAll");
        User user=new User();
        user.setId(4);
        user.setPassword("777");
        session.delete("deleteById",5);
        session.update("updateById",user);
        User user1=new User();
        user1.setPassword("987");
        session.insert("insert",user1);
        System.out.println(userList);
        session.commit();
        session.close();
    }
}