我无法将excel文件信息存储到数据库表中。任何人都可以帮我如何将文件数据保存到一个表中，该表具有不同的数据类型，如bigint，varchar和date.Here我正在提供我的程序，通过记录将excel文件保存到数据库记录中？
import java.io.*;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.util.*;
import java.sql.*;
public class XLToDB {
public static final String INSERT_RECORDS = "INSERT INTO RECORDS" + "(SNO, ID, NAME, VALUE1, VALUE2, VALUE3, VALUE4, VALUE5) VALUES" + "(?,?,?,?,?,?,?,?)";
private static String GET_COUNT = "SELECT COUNT(*) FROM RECORDS";
public static void main(String[] args) throws Exception{
XLToDB obj = new XLToDB();
obj.insertRecords("E:/test.xlsx");
}
public void insertRecords(String filePath){
/* Create Connection objects */
Connection con = null;
PreparedStatement prepStmt = null;
java.sql.Statement stmt = null;
int count = 0;
ArrayList<String> mylist = new ArrayList<String>();
try{
con = DBHelper.getConnection();
System.out.println("Connection :: ["+con+"]");
prepStmt = con.prepareStatement(INSERT_RECORDS);
stmt = con.createStatement();
ResultSet result = stmt.executeQuery(GET_COUNT);
while(result.next()) {
int val = result.getInt(1);
System.out.println(val);
count = val+1;
}
prepStmt.setInt(1,count);
/* We should now load excel objects and loop through the worksheet data */
FileInputStream fis = new FileInputStream(new File(filePath));
/* Load workbook */
XSSFWorkbook workbook = new XSSFWorkbook (fis);
/* Load worksheet */
XSSFSheet sheet = workbook.getSheetAt(0);
// we loop through and insert data
Iterator ite = sheet.rowIterator();
while(ite.hasNext()) {
Row row = (Row) ite.next();
Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext()) {
Cell cell = cellIterator.next();
switch(cell.getCellType()) {
case Cell.CELL_TYPE_STRING: //handle string columns
prepStmt.setString(1, cell.getStringCellValue());
break;
case Cell.CELL_TYPE_NUMERIC: //handle double data
prepStmt.setDouble(2,cell.getNumericCellValue() );
break;
}
}
//we can execute the statement before reading the next row
prepStmt.executeUpdate();
}
/* Close input stream */
fis.close();
/* Close prepared statement */
prepStmt.close();
/* COMMIT transaction */
con.commit();
/* Close connection */
con.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
答案 0 :(得分：1)
import java.io.*;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.util.*;
import java.sql.*;
public class XLToDB {
public static final String INSERT_RECORDS = "INSERT INTO RECORDS(ID, NAME, VALUE1, VALUE2, VALUE3, VALUE4, VALUE5) VALUES(?,?,?,?,?,?,?)";
private static String GET_COUNT = "SELECT COUNT(*) FROM RECORDS";
public static void main(String[] args) throws Exception{
XLToDB obj = new XLToDB();
obj.insertRecords("E:/test.xlsx");
}
public void insertRecords(String filePath){
/* Create Connection objects */
Connection con = null;
PreparedStatement prepStmt = null;
java.sql.Statement stmt = null;
int count = 0;
ArrayList<String> mylist = new ArrayList<String>();
try{
con = DBHelper.getConnection();
System.out.println("Connection :: ["+con+"]");
prepStmt = con.prepareStatement(INSERT_RECORDS);
stmt = con.createStatement();
ResultSet result = stmt.executeQuery(GET_COUNT);
while(result.next()) {
int val = result.getInt(1);
System.out.println(val);
count = val+1;
}
//prepStmt.setInt(1,count);
/* We should now load excel objects and loop through the worksheet data */
FileInputStream fis = new FileInputStream(new File(filePath));
System.out.println("FileInputStream Object created..! ");
/* Load workbook */
XSSFWorkbook workbook = new XSSFWorkbook (fis);
System.out.println("XSSFWorkbook Object created..! ");
/* Load worksheet */
XSSFSheet sheet = workbook.getSheetAt(0);
System.out.println("XSSFSheet Object created..! ");
// we loop through and insert data
Iterator ite = sheet.rowIterator();
System.out.println("Row Iterator invoked..! ");
while(ite.hasNext()) {
Row row = (Row) ite.next();
System.out.println("Row value fetched..! ");
Iterator<Cell> cellIterator = row.cellIterator();
System.out.println("Cell Iterator invoked..! ");
int index=1;
while(cellIterator.hasNext()) {
Cell cell = cellIterator.next();
System.out.println("getting cell value..! ");
switch(cell.getCellType()) {
case Cell.CELL_TYPE_STRING: //handle string columns
prepStmt.setString(index, cell.getStringCellValue());
break;
case Cell.CELL_TYPE_NUMERIC: //handle double data
int i = (int)cell.getNumericCellValue();
prepStmt.setInt(index, (int) cell.getNumericCellValue());
break;
}
index++;
}
//we can execute the statement before reading the next row
prepStmt.executeUpdate();
}
/* Close input stream */
fis.close();
/* Close prepared statement */
prepStmt.close();
/* Close connection */
con.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
my excel is like below
101 Mobiles 10 10 10 10 10
102 Batteries 20 21 22 20 56
103 Watches 25 242 52 55 28
104 Keyboards 10 11 12 12 12
105 Pens 5 5 5 5 3
----------------------------------->
in my database it saves in this direction[--------------------->>>]