Excel的数据导入到数据库中出现的两个问题及解决方案

     今天要把Excel中的数据导入到数据库中，写了段代码，出现两个问题，解决方法如下。

问题一：程序报错，报错如下，原因是excel中用了筛选，且有标题头，去掉即可。

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

public class ImportExcel {
public static String filePath = "D://20130128.xls";
public static void main(String[] args) {
try {
// 创建对Excel工作簿文件的引用
FileInputStream file = new FileInputStream(filePath);

HSSFWorkbook wookbook = new HSSFWorkbook(new FileInputStream(filePath));
// 在Excel文档中，第一张工作表的缺省索引是0
// 其语句为：HSSFSheet sheet = workbook.getSheetAt(0);
HSSFSheet sheet = wookbook.getSheetAt(0);
//获取到Excel文件中的所有行数
int rows = sheet.getPhysicalNumberOfRows();
//遍历行
for (int i = 0; i < rows; i++) {
// 读取左上端单元格
HSSFRow row = sheet.getRow(i);
// 行不为空
if (row != null) {
//获取到Excel文件中的所有的列
int cells = row.getPhysicalNumberOfCells();
String value = "";
//遍历列
for (int j = 1; j < 7; j++) {
//获取到列的值
HSSFCell cell = row.getCell((short)j);
if (cell != null) {
switch (cell.getCellType()) {
case HSSFCell.CELL_TYPE_FORMULA:
break;
case HSSFCell.CELL_TYPE_NUMERIC:
value += cell.getNumericCellValue() + ",";
break;
case HSSFCell.CELL_TYPE_STRING:
value += cell.getStringCellValue() + ",";
break;
default:
value += cell.getStringCellValue() + " ";
break;
}
}
}
System.out.println(i+"   "+value);
}

}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}

 

java.lang.reflect.InvocationTargetException

 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

 at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

 at java.lang.reflect.Constructor.newInstance(Unknown Source)

 at org.apache.poi.hssf.record.RecordFactory.createRecord(RecordFactory.java:224)

 at org.apache.poi.hssf.record.RecordFactory.createRecords(RecordFactory.java:160)

 at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:163)

 at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:210)

 at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:191)

 at com.comtop.log.ImportExcel.main(ImportExcel.java:20)

Caused by: java.lang.ArrayIndexOutOfBoundsException

 at java.lang.System.arraycopy(Native Method)

 at org.apache.poi.hssf.record.UnknownRecord.<init>(UnknownRecord.java:62)

 at org.apache.poi.hssf.record.SubRecord.createSubRecord(SubRecord.java:57)

 at org.apache.poi.hssf.record.ObjRecord.fillFields(ObjRecord.java:99)

 at org.apache.poi.hssf.record.Record.fillFields(Record.java:90)

 at org.apache.poi.hssf.record.Record.<init>(Record.java:55)

 at org.apache.poi.hssf.record.ObjRecord.<init>(ObjRecord.java:61)

 ... 10 more

Exception in thread "main" org.apache.poi.hssf.record.RecordFormatException: Unable to construct record instance, the following exception occured: null

 at org.apache.poi.hssf.record.RecordFactory.createRecord(RecordFactory.java:237)

 at org.apache.poi.hssf.record.RecordFactory.createRecords(RecordFactory.java:160)

 at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:163)

 at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:210)

 at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:191)

 at com.comtop.log.ImportExcel.main(ImportExcel.java:20)
问题二：原本是800条数据，导到512[b]条就导不进去了，读取excel的数据打印出来看到有几条数据是乱码。随后检查excel中的内容，看到有些字段内容后面有空格，把空格去掉后，导入正常。[/b]