Question

如何用Java将excel数据导入数据库

Answer 1

package com.javen.excel;

import java.util.List;

import com.javen.db.DBhepler;
import com.javen.entity.StuEntity;
import com.javen.service.StuService;

/**
* @author Javen
* @Email zyw205@gmail.com
*
*/
public class TestExcelToDb {
public static void main(String[] args) {
//得到表格中所有的数据
List<StuEntity> listExcel=StuService.getAllByExcel("d://book.xls");
/*//得到数据库表中所有的数据
List<StuEntity> listDb=StuService.getAllByDb();*/

DBhepler db=new DBhepler();

for (StuEntity stuEntity : listExcel) {
int id=stuEntity.getId();
if (!StuService.isExist(id)) {
//不存在就添加
String sql="insert into stu (name,sex,num) values(?,?,?)";
String[] str=new String[]{stuEntity.getName(),stuEntity.getSex(),stuEntity.getNum()+""};
db.AddU(sql, str);
}else {
//存在就更新
String sql="update stu set name=?,sex=?,num=? where id=?";
String[] str=new String[]{stuEntity.getName(),stuEntity.getSex(),stuEntity.getNum()+"",id+""};
db.AddU(sql, str);
}
}
}
}

Answer 2

用POI读取Excel内容再将内容写入数据库