java导入excel表到数据库多张表中

以下是Java导入Excel表到数据库多张表中的示例代码：

import java.io.File;
import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Iterator;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class ExcelImporter {
    public static void main(String[] args) {
        String excelFilePath = "path/to/excel/file.xlsx";
        
        try {
            FileInputStream inputStream = new FileInputStream(new File(excelFilePath));
            Workbook workbook = new XSSFWorkbook(inputStream);
            Iterator<Sheet> sheetIterator = workbook.iterator();
            
            while (sheetIterator.hasNext()) {
                Sheet sheet = sheetIterator.next();
                String tableName = sheet.getSheetName();
                
                Iterator<Row> rowIterator = sheet.iterator();
                while (rowIterator.hasNext()) {
                    Row row = rowIterator.next();
                    Iterator<Cell> cellIterator = row.cellIterator();
                    
                    // 获取数据库连接
                    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/database", "username", "password");
                    
                    // 构建插入语句
                    StringBuilder sql = new StringBuilder();
                    sql.append("INSERT INTO ").append(tableName).append(" VALUES (");
                    for (int i = 0; i < row.getLastCellNum(); i++) {
                        sql.append("?,");
                    }
                    sql.deleteCharAt(sql.length() - 1);
                    sql.append(")");
                    
                    // 创建预编译语句
                    PreparedStatement statement = connection.prepareStatement(sql.toString());                    
                    int cellIndex = 0;
                    while (cellIterator.hasNext()) {
                        Cell cell = cellIterator.next();
                        statement.setString(cellIndex + 1, cell.getStringCellValue());
                        cellIndex++;
                    }
                    
                    // 执行插入语句
                    statement.executeUpdate();
                    
                    // 关闭连接和语句
                    statement.close();
                    connection.close();
                }
            }
            
            workbook.close();
            inputStream.close();
            
            System.out.println("Excel导入到数据库成功！");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

请注意，上述代码中的数据库连接信息需要根据实际情况进行修改。此外，还需要添加Apache POI和MySQL驱动的依赖。