[MyBatis]五分钟向MySql数据库插入一千万条数据 批量插入 用时5分左右

CREATE TABLE`emp` (
  `Id` int(11) NOT NULLAUTO_INCREMENT,
  `name` varchar(255) DEFAULT NULL,
  `age` smallint(3) DEFAULT NULL,
  `cdate` timestamp NULL DEFAULT NULL COMMENT 'createtime',
  PRIMARY KEY(`Id`)
) ENGINE=InnoDB AUTO_INCREMENT=13548008 DEFAULT CHARSET=utf8;

<?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.hy.mapper.EmpMapper">
    <select id="selectById"resultType="com.hy.entity.Employee">
        select id,name,age,cdate as ctime  from emp where id=#{id}
    </select>
    <insert id="batchInsert">
        insert into emp(name,age,cdate)
        values
        <foreach collection="list"item="emp"separator=",">
            (#{emp.name},#{emp.age},#{emp.ctime,jdbcType=TIMESTAMP})
        </foreach>
    </insert>
</mapper>

packagecom.hy.mapper;
importjava.util.List;
importcom.hy.entity.Employee;
public interfaceEmpMapper {
    Employee selectById(longid);
    int batchInsert(List<Employee>emps);
}

packagecom.hy.entity;
importjava.text.MessageFormat;
public classEmployee {
    private longid;
    privateString name;
    private intage;
    privateString ctime;
    publicEmployee() {
    }
    public Employee(String name,intage,String ctime) {
        this.name=name;
        this.age=age;
        this.ctime=ctime;
    }
    publicString toString() {
        Object[] arr={id,name,age,ctime};
        String retval=MessageFormat.format("Employee id={0},name={1},age={2},created_datetime={3}", arr);
        returnretval;
    }
    public longgetId() {
        returnid;
    }
    public void setId(longid) {
        this.id =id;
    }
    publicString getName() {
        returnname;
    }
    public voidsetName(String name) {
        this.name =name;
    }
    public intgetAge() {
        returnage;
    }
    public void setAge(intage) {
        this.age =age;
    }
    publicString getCtime() {
        returnctime;
    }
    public voidsetCtime(String ctime) {
        this.ctime =ctime;
    }
}

packagecom.hy.action;
importjava.io.Reader;
importjava.util.ArrayList;
importjava.util.List;
importorg.apache.ibatis.io.Resources;
importorg.apache.ibatis.session.SqlSession;
importorg.apache.ibatis.session.SqlSessionFactory;
importorg.apache.ibatis.session.SqlSessionFactoryBuilder;
importorg.apache.log4j.Logger;
importcom.hy.entity.Employee;
importcom.hy.mapper.EmpMapper;
public classBatchInsert01 {
private static Logger logger = Logger.getLogger(SelectById.class);
    public static void main(String[] args) throwsException{
        Reader reader=Resources.getResourceAsReader("mybatis-config.xml");
        SqlSessionFactory ssf=newSqlSessionFactoryBuilder().build(reader);
        reader.close();
        SqlSession session=ssf.openSession();
        try{
            EmpMapper mapper=session.getMapper(EmpMapper.class);
            List<Employee> emps=new ArrayList<Employee>();
            emps.add(new Employee("Bill",22,"2018-12-25"));
            emps.add(new Employee("Cindy",22,"2018-12-25"));
            emps.add(new Employee("Douglas",22,"2018-12-25"));
            int changed=mapper.batchInsert(emps);
            System.out.println("changed="+changed);
            session.commit();
        }catch(Exception ex) {
            logger.error(ex);
            session.rollback();
        }finally{
            session.close();
        }
    }
}

packagecom.hy.action;
importjava.io.Reader;
importjava.util.ArrayList;
importjava.util.List;
importorg.apache.ibatis.io.Resources;
importorg.apache.ibatis.session.SqlSession;
importorg.apache.ibatis.session.SqlSessionFactory;
importorg.apache.ibatis.session.SqlSessionFactoryBuilder;
importorg.apache.log4j.Logger;
importcom.hy.entity.Employee;
importcom.hy.mapper.EmpMapper;
public classBatchInsert1000 {
private static Logger logger = Logger.getLogger(SelectById.class);
    public static void main(String[] args) throwsException{
        long startTime =System.currentTimeMillis();
        Reader reader=Resources.getResourceAsReader("mybatis-config.xml");
        SqlSessionFactory ssf=newSqlSessionFactoryBuilder().build(reader);
        reader.close();
        SqlSession session=ssf.openSession();
        try{
            EmpMapper mapper=session.getMapper(EmpMapper.class);
            String ctime="2017-11-01 00:00:01";
            for(int i=0;i<10000;i++) {
                List<Employee> emps=new ArrayList<Employee>();
                for(int j=0;j<1000;j++) {
                    Employee emp=new Employee("E"+i,20,ctime);
                    emps.add(emp);    
                }
                int changed=mapper.batchInsert(emps);
                session.commit();
                System.out.println("#"+i+" changed="+changed);
            }
        }catch(Exception ex) {
            session.rollback();
            logger.error(ex);
        }finally{
            session.close();
            long endTime =System.currentTimeMillis();
            logger.info("Time elapsed:" + toDhmsStyle((endTime - startTime)/1000) + ".");
        }
    }
    //format seconds to day hour minute seconds style
    //Example 5000s will be formatted to 1h23m20s
    public static String toDhmsStyle(longallSeconds) {
        String DateTimes = null;
        long days = allSeconds / (60 * 60 * 24);
        long hours = (allSeconds % (60 * 60 * 24)) / (60 * 60);
        long minutes = (allSeconds % (60 * 60)) / 60;
        long seconds = allSeconds % 60;
        if (days > 0) {
            DateTimes = days + "d" + hours + "h" + minutes + "m" + seconds + "s";
        } else if (hours > 0) {
            DateTimes = hours + "h" + minutes + "m" + seconds + "s";
        } else if (minutes > 0) {
            DateTimes = minutes + "m" + seconds + "s";
        } else{
            DateTimes = seconds + "s";
        }
        returnDateTimes;
    }
}