如何使用java POI从excel表中插入数据库读取？
[英]How to insert into database reading from excel sheet using java POI?
问题描述
我正在使用 java POI 从 excel 工作表中读取值并需要插入到数据库中。我有来自 excel 工作表的字符串、数字和日期值以及第一个字段是列标题。
public class SimpleExcelReadExample {
static Connection con1 = null;
static Connection con3 = null;
static PreparedStatement preparedstatement = null;
static ResultSet resultset = null;
int j = 0;
public static void main(String[] args) {
String fileName = "D:/Excel/Report.xls";
Cleartables.table_daily_report();
Vector dataHolder = read(fileName);
saveToDatabase(dataHolder);
}
public static Vector read(String fileName) {
Vector cellVectorHolder = new Vector();
try {
FileInputStream myInput = new FileInputStream(fileName);
POIFSFileSystem myFileSystem = new POIFSFileSystem(myInput);
HSSFWorkbook myWorkBook = new HSSFWorkbook(myFileSystem);
HSSFSheet mySheet = myWorkBook.getSheetAt(0);
Iterator rowIter = mySheet.rowIterator();
while (rowIter.hasNext()) {
HSSFRow myRow = (HSSFRow) rowIter.next();
Iterator cellIter = myRow.cellIterator();
Vector cellStoreVector = new Vector();
while (cellIter.hasNext()) {
HSSFCell myCell = (HSSFCell) cellIter.next();
//System.out.println("read method"+myCell);
cellStoreVector.addElement(myCell);
}
cellVectorHolder.addElement(cellStoreVector);
}
} catch (Exception e) {
e.printStackTrace();
}
return cellVectorHolder;
}
private static void saveToDatabase(Vector dataHolder)
{
for (int i=0;i<dataHolder.size(); i++)
{
Vector cellStoreVector=(Vector)dataHolder.elementAt(i);
for (int j=0; j < cellStoreVector.size();j++)
{
System.out.println("show.....");
HSSFCell myCell = (HSSFCell)cellStoreVector.elementAt(j);
Please help me here....How to get the each column values ?
}
6 个解决方案
解决方案1
2 2013-12-10 09:50:10
try {
FileInputStream file = new FileInputStream(new File("E://Imp/Details.xlsx"));
XSSFWorkbook workbook = new XSSFWorkbook(file);
XSSFSheet sheet = workbook.getSheetAt(0);
Iterator<Row> rowIterator = sheet.iterator();
rowIterator.next();
while(rowIterator.hasNext())
{
Row row = rowIterator.next();
//For each row, iterate through each columns
Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext())
{
Cell cell = cellIterator.next();
//This will change all Cell Types to String
cell.setCellType(Cell.CELL_TYPE_STRING);
switch(cell.getCellType())
{
case Cell.CELL_TYPE_BOOLEAN:
System.out.println("boolean===>>>"+cell.getBooleanCellValue() + "\t");
break;
case Cell.CELL_TYPE_NUMERIC:
break;
case Cell.CELL_TYPE_STRING:
list.add(cell.getStringCellValue());
break;
}
}
name=row.getCell(0).getStringCellValue();
empid=row.getCell(1).getStringCellValue();
add=row.getCell(2).getStringCellValue();
mobile=row.getCell(3).getStringCellValue();
System.out.println(name+empid+add+mobile);
ex.InsertRowInDB(name,empid,add,mobile);
System.out.println("");
}
file.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public void InsertRowInDB(String name,String empid,String add,String mobile) throws SQLException{
Statement stmt=db.con.createStatement();
PreparedStatement ps=null;
String sql="Insert into Employee(Name,EmployeeId,Address,ContactInfo) values(?,?,?,?)";
ps=db.con.prepareStatement(sql);
ps.setString(1, name);
ps.setString(2, empid);
ps.setString(3, add);
ps.setString(4, mobile);
ps.executeUpdate();
System.out.println("Values Inserted Successfully");
}
}
解决方案2
0 2015-12-16 08:54:30
试试这个：
尝试 {
String jdbc_insert_sql = "INSERT INTO TBL_PUNETORET"
+ "( NUMRI_PERSONAL, EMRI_MBIEMRI,DATELINDJA,ADRESA,TELEFONI,DATA_PUNSIMIT,DATA_LARGIMIT,NJESIA,POZITA,TELEFONI_P,EMAIL,PERSHKRIMI,PUNTORI,REKOMANDUAR) "
+ "VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
Class.forName("oracle.jdbc.driver.OracleDriver");
PreparedStatement preStatement = con.prepareStatement(jdbc_insert_sql);
con.setAutoCommit(false);
FileInputStream input = new FileInputStream(filename);
POIFSFileSystem fs = null;
try {
fs = new POIFSFileSystem(input);
} catch (IOException ex) {
Logger.getLogger(PunetoretForm.class.getName()).log(Level.SEVERE, null, ex);
}
HSSFWorkbook wb = new HSSFWorkbook(fs);
HSSFSheet sheet = wb.getSheetAt(0);
Row row;
for (int i = 1; i <= sheet.getLastRowNum(); i++) {
row = sheet.getRow(i);
int numripersonal = (int) (row.getCell(0).getNumericCellValue());
//String numripersonal = row.getCell(0).getStringCellValue();
String emri = row.getCell(1).getStringCellValue();
Date datelindja = row.getCell(4).getDateCellValue();
DateFormat df = new SimpleDateFormat("dd/MMM/yyyy");
String reportDate = df.format(datelindja);
df.parse(reportDate);
String adresa = row.getCell(5).getStringCellValue();
int telefoni = (int) (row.getCell(6).getNumericCellValue());
//String telefoni = row.getCell(4).getStringCellValue();
Date datap = row.getCell(7).getDateCellValue();
df = new SimpleDateFormat("dd/MMM/yyyy");
String reportDatap = df.format(datap);
df.parse(reportDatap);
Date datal = row.getCell(8).getDateCellValue();
String ss = null;
if (datal != null) {
df = new SimpleDateFormat("dd/MMM/yyyy");
ss = df.format(datal);
df.parse(ss);
}
String njesia = row.getCell(9).getStringCellValue();
String pozita = row.getCell(10).getStringCellValue();
int telp = (int) (row.getCell(11).getNumericCellValue());
if (telp == 0) {
String s = String.valueOf(telp);
s = "Ska numer";
}
//String telp = row.getCell(9).getStringCellValue();
String email = row.getCell(12).getStringCellValue();
String pershkrimi = row.getCell(13).getStringCellValue();
String punetori = row.getCell(14).getStringCellValue();
String rekomanduar = row.getCell(15).getStringCellValue();
if (datal == null) {
String sql = "INSERT INTO TBL_PUNETORET ( NUMRI_PERSONAL, EMRI_MBIEMRI,DATELINDJA,ADRESA,TELEFONI,DATA_PUNSIMIT,DATA_LARGIMIT,NJESIA,POZITA,TELEFONI_P,EMAIL,PERSHKRIMI,PUNTORI,REKOMANDUAR) "
+ "VALUES('" + numripersonal + "','" + emri + "','" + reportDate + "','" + adresa + "','" + telefoni + "','" + reportDatap + "'," + datal + ",'" + njesia + "','" + pozita + "','" + telp + "','" + email + "','" + pershkrimi + "','" + rekomanduar + "','" + punetori + "')";
preStatement = (PreparedStatement) con.prepareStatement(sql);
preStatement.execute();
}
解决方案3
0 2017-05-25 12:17:55
这是我为相同操作编写的代码。 请注意，我还创建了一个 Employee java 类，其中包含所有这 4 个属性：id、name、gender 工资及其 getter-setter。
package com.hibernate.poiex2;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Iterator;
import java.util.Properties;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
/**
*
* @author nidhi
*/
public class POIex2 {
XSSFRow row;
Employee e = new Employee();
public static void main(String[] args) throws IOException {
String fileName = "/home/nidhi/Downloads/Employees.xlsx";
POIex2 poIex2 = new POIex2();
poIex2.readFile(fileName);
}
public void readFile(String fileName) throws FileNotFoundException, IOException {
FileInputStream fis;
try {
System.out.println("-------------------------------READING THE SPREADSHEET-------------------------------------");
fis = new FileInputStream(fileName);
XSSFWorkbook workbookRead = new XSSFWorkbook(fis);
XSSFSheet spreadsheetRead = workbookRead.getSheetAt(0);
Iterator< Row> rowIterator = spreadsheetRead.iterator();
while (rowIterator.hasNext()) {
row = (XSSFRow) rowIterator.next();
Iterator< Cell> cellIterator = row.cellIterator();
while (cellIterator.hasNext()) {
Cell cell = cellIterator.next();
cell.setCellType(CellType.STRING);
switch (cell.getColumnIndex()) {
case 0:
System.out.print(
cell.getStringCellValue() + " \t\t");
break;
case 1:
System.out.print(
cell.getStringCellValue() + " \t\t");
break;
case 2:
System.out.print(
cell.getStringCellValue() + " \t\t");
break;
case 3:
System.out.print(
cell.getStringCellValue() + " \t\t");
break;
case 4:
System.out.print(
cell.getStringCellValue() + " \t\t");
break;
}
}
System.out.println();
e.empId = Integer.parseInt(row.getCell(0).getStringCellValue());
e.empName = row.getCell(1).getStringCellValue();
e.gender = row.getCell(2).getStringCellValue();
e.salary = row.getCell(3).getStringCellValue();
InsertRowInDB(e.empId, e.empName, e.gender, e.salary);
}
System.out.println("Values Inserted Successfully");
fis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public void InsertRowInDB(int empId, String empName, String gender, String salary) {
Float salaryDB = Float.parseFloat(salary);
try {
Properties properties = new Properties();
properties.setProperty("user", "root");
properties.setProperty("password", "root");
properties.setProperty("useSSL", "false");
properties.setProperty("autoReconnect", "true");
Class.forName("com.mysql.jdbc.Driver");
Connection connect = DriverManager.getConnection("jdbc:mysql://localhost:3306/Attendance", properties);
Statement stmt = connect.createStatement();
PreparedStatement ps = null;
String sql = "INSERT INTO `Attendance`.`Employee_Master`\n"
+ "(`EmployeeId`,\n"
+ "`EmployeeName`,\n"
+ "`Gender`,\n"
+ "`Salary`)\n"
+ "VALUES(?,?,?,?)";
ps = connect.prepareStatement(sql);
ps.setInt(1, empId);
ps.setString(2, empName);
ps.setString(3, gender);
ps.setFloat(4, salaryDB);
ps.executeUpdate();
connect.close();
} catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
}
}
}
解决方案4
0 2018-03-07 10:06:40
试试这个
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.AnnotationConfiguration;
import com.mani.beans.Student;
public class ReadDataFromExcel {
public static void main(String args[]) throws IOException {
SessionFactory sf = new AnnotationConfiguration().configure("com/mani/resources/hibernate.cfg.xml").buildSessionFactory();
Session session = sf.openSession();
FileInputStream file = new FileInputStream(new File("C:/Users/mani/Desktop/data.xlsx"));
XSSFWorkbook workbook = new XSSFWorkbook(file);
XSSFSheet sheet = workbook.getSheetAt(1);
Row row;
for(int i=1; i<=sheet.getLastRowNum(); i++){ //points to the starting of excel i.e excel first row
row = (Row) sheet.getRow(i); //sheet number
String id;
if( row.getCell(0)==null) { id = "0"; }
else id= row.getCell(0).toString();
String name;
if( row.getCell(1)==null) { name = "null";} //suppose excel cell is empty then its set to 0 the variable
else name = row.getCell(1).toString(); //else copies cell data to name variable
String address;
if( row.getCell(2)==null) { address = "null"; }
else address = row.getCell(2).toString();
Transaction t = session.beginTransaction();
Student std = new Student();
std.setId(Double.parseDouble(id));
std.setName(name);
std.setAddress(address);
System.out.println(std.getId()+" "+std.getName()+" "+std.getAddress());
session.saveOrUpdate(std);
t.commit();
}
file.close();
}
}`
解决方案5
0 2019-11-02 09:11:34
Excel 文件插入数据库。 这个对我有用。
导入的jar文件：
- poi-ooxml 3.5-beta5
- xmlbeans
- apache-logging-log4j
- dom4j-1.5
- POI 3.10.1
- POI 3.14
- poi ooxml-schema 3.7-beta5
不要忘记导入数据库jar文件。
希望它会帮助你。
public class ExcelToDatabase {
public static void main(String[] args) {
try {
String filename = "exceldatabase.xlsx";
try (FileInputStream file = new FileInputStream(new File(filename))) {
Workbook workbook = WorkbookFactory.create(file);
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
String jdbc_insert_sql = "INSERT INTO employee" + "VALUES(?,?,?)";
PreparedStatement preStatement = con.prepareStatement(jdbc_insert_sql);
Sheet sheet = workbook.getSheetAt(0);
Row row;
System.out.println("last row number is=========" + sheet.getLastRowNum());
for (int i = 1; i <= sheet.getLastRowNum(); i++) {
row = sheet.getRow(i);
int empId = (int)(row.getCell(0).getNumericCellValue());
String empName = row.getCell(1).getStringCellValue();
String empEmail = row.getCell(2).getStringCellValue();
String sql = "insert into employee " + "values('" + empId + "','" + empName + "','" + empEmail + "')";
preStatement = (PreparedStatement) con.prepareStatement(sql);
preStatement.execute();
System.out.println("Records inserted.........." + i);
}
System.out.println("");
}
} catch (Exception e) {}
}
}
解决方案6
-1 2017-02-23 07:18:48
如何从excel表中读取数据并插入到java中的数据库表中
if (fileName.endsWith(".xls")) {
CustomerVo customerVo = new CustomerVo();//your vo
File myFile = new File("file location" + fileName);
FileInputStream fis = new FileInputStream(myFile);
// Finds the workbook instance for XLSX file
org.apache.poi.ss.usermodel.Workbook workbook = null;
try {
workbook = WorkbookFactory.create(fis);
} catch (InvalidFormatException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Row row = null;
// Return first sheet from the XLSX workbook
org.apache.poi.ss.usermodel.Sheet sheet = workbook.getSheetAt(0);
// Get iterator to all the rows in current sheet
Iterator<Row> rowIterator = sheet.iterator();
int i = 0;
// Traversing over each row of XLSX file
while (rowIterator.hasNext()) {
row = rowIterator.next();
Iterator<Cell> cellIterator = row.cellIterator();
if (i != 0) {
while (cellIterator.hasNext()) {
Cell cell = cellIterator.next();
if (i != 0) {
switch (cell.getCellType()) {
case Cell.CELL_TYPE_STRING:
System.out.print(cell.getStringCellValue());
customerVo.setName(row.getCell(1).getStringCellValue());
customerVo.setSex(row.getCell(2).getStringCellValue());
DateFormat formatter = new SimpleDateFormat("E MMM dd HH:mm:ss Z yyyy");
Date date;
try {
date = (Date) formatter.parse(row.getCell(3).getStringCellValue());
customerVo.setDob(date);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
customerVo.setEmail(row.getCell(4).getStringCellValue());
customerVo.setAddress(row.getCell(6).getStringCellValue());
customerVo.setCity(row.getCell(8).getStringCellValue());
customerVo.setState(row.getCell(9).getStringCellValue());
break;
case Cell.CELL_TYPE_BOOLEAN:
System.out.print(cell.getBooleanCellValue());
break;
case Cell.CELL_TYPE_NUMERIC:
System.out.print(cell.getNumericCellValue());
customerVo.setAccountnumber((int) row.getCell(0).getNumericCellValue());
customerVo.setPincode((int) row.getCell(7).getNumericCellValue());
customerVo.setBalance((int) row.getCell(10).getNumericCellValue());
customerVo.setMobile((long) row.getCell(5).getNumericCellValue());
break;
}
System.out.print(" - ");
}
i++;
}
System.out.println(customerVo);//your data store in the object
fileUploadService.customerFile(customerVo);//this method using mvc service to dao impl
}
i++;
}
}
// 用于将文件存储到数据库
@Repository 公共类 FileUploadDAOImpl 实现了 FIleUploadDAO {
@Autowired
private DataSource dataSource;
@Override
public CustomerVo customerFile(CustomerVo customerVo) {
String query = "insert into file_upload_table(name,sex,dob,email,mobile,address,pincode,city,state,balance,account_number)"
+ "values(?,?,?,?,?,?,?,?,?,?,?)";
Connection connection = null;
try {
connection = dataSource.getConnection();
Date oldDate = new Date(customerVo.getDob().getTime());
java.sql.PreparedStatement ps = null;
java.sql.ResultSet rs = null;
try {
ps = connection.prepareStatement(query);
// ps.setLong(1, customerVO.getAccountNo());
ps.setString(1, customerVo.getName());
ps.setString(2, customerVo.getSex());
ps.setDate(3,oldDate);
ps.setString(4, customerVo.getEmail());
ps.setLong(5, customerVo.getMobile());
ps.setString(6, customerVo.getAddress());
ps.setLong(7, customerVo.getPincode());
ps.setString(8, customerVo.getCity());
ps.setString(9, customerVo.getState());
ps.setLong(10, customerVo.getBalance());
ps.setLong(11, customerVo.getAccountnumber());
ps.executeUpdate();
} catch (SQLException e) {
// TODO: handle exception
e.printStackTrace();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
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