我在这里有一些问题,我想java阅读我的excel文档,但是如果有一些我不想阅读的行,我想跳过它。这是我的excel示例:假设我希望我的java程序从第3行开始读取 excel example
这是我的代码:
public static void main(String[] args) {
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con = (Connection) DriverManager.getConnection(dbconnection+","+dbusername+","+dbPass);
con.setAutoCommit(false);
PreparedStatement pstm = null ;
File file = new File(filepath);
FileInputStream input = new FileInputStream(file);
System.out.println(file);
if (!file.toString().contains("xlsx")){
System.out.println("hssf");
POIFSFileSystem fs = new POIFSFileSystem(input);
HSSFWorkbook wb = new HSSFWorkbook(fs);
HSSFSheet sheeth = wb.getSheetAt(0);
Row row;
for(int i=0; i<=sheeth.getLastRowNum(); i++){
row = sheeth.getRow(i);
int id = (int) row.getCell(0).getNumericCellValue();
String nama = row.getCell(1).getStringCellValue();
String rm = row.getCell(2).getStringCellValue();
String nama_ro = row.getCell(3).getStringCellValue();
String no_pks = row.getCell(4).getStringCellValue();
String ket = row.getCell(5).getStringCellValue();
String lob = row.getCell(6).getStringCellValue();
String sql = "INSERT INTO testdatapks VALUES('"+id+"','"+nama+"','"+rm+"','"+nama_ro+"','"+no_pks+"','"+ket+"','"+lob+"')";
pstm = (PreparedStatement) con.prepareStatement(sql);
pstm.execute();
System.out.println("Import rows "+i);
}
con.commit();
pstm.close();
con.close();
input.close();
System.out.println("Success import excel to mysql table");
}
我假设我们从来不知道用户或客户文档,他/她可以创建一个值从任何行开始的excel,我们永远都不知道。如果他上传的excel值从第4行开始怎么办?还是排5?或者第一排? 有人可以帮助我这样做吗?
之前谢谢答案 0 :(得分:0)
这是一种更具活力的方法..
Integer startFrom = 3; // start from 3rd row change as needed
for(int i=startFrom - 1; i<=sheeth.getLastRowNum(); i++){
row = sheeth.getRow(i);
int id = (int) row.getCell(0).getNumericCellValue();
String nama = row.getCell(1).getStringCellValue();
String rm = row.getCell(2).getStringCellValue();
String nama_ro = row.getCell(3).getStringCellValue();
String no_pks = row.getCell(4).getStringCellValue();
String ket = row.getCell(5).getStringCellValue();
String lob = row.getCell(6).getStringCellValue();
String sql = "INSERT INTO testdatapks VALUES('"+id+"','"+nama+"','"+rm+"','"+nama_ro+"','"+no_pks+"','"+ket+"','"+lob+"')";
pstm = (PreparedStatement) con.prepareStatement(sql);
pstm.execute();
System.out.println("Import rows "+i);
}
或者,如果您想以编程方式查找起始行..
在插入testdatapks表之前检查是否有有效的ID。
for(int i=0; i<=sheeth.getLastRowNum(); i++){
row = sheeth.getRow(i);
int id = (int) row.getCell(0).getNumericCellValue();
if(id >= 0) {
String nama = row.getCell(1).getStringCellValue();
String rm = row.getCell(2).getStringCellValue();
String nama_ro = row.getCell(3).getStringCellValue();
String no_pks = row.getCell(4).getStringCellValue();
String ket = row.getCell(5).getStringCellValue();
String lob = row.getCell(6).getStringCellValue();
String sql = "INSERT INTO testdatapks VALUES('"+id+"','"+nama+"','"+rm+"','"+nama_ro+"','"+no_pks+"','"+ket+"','"+lob+"')";
pstm = (PreparedStatement) con.prepareStatement(sql);
pstm.execute();
System.out.println("Import rows "+i);
}
}