Java 使用HSSF读取excel文件
Emp ID姓名工资 1.0约翰2000000.0 2.0迪安4200000.0 3.0 sam 2800000.0 4.0卡斯600000.0 我创建了以下代码:Java 使用HSSF读取excel文件,java,eclipse,hssf,Java,Eclipse,Hssf,Emp ID姓名工资 1.0约翰2000000.0 2.0迪安4200000.0 3.0 sam 2800000.0 4.0卡斯600000.0 我创建了以下代码: import java.io.File; import java.io.FileInputStream; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.apache.poi.hssf.usermodel
import java.io.File;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
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;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
public class sample2
{
public static void main(String[] args) {
new sample2().sample2();
}
}
FileInputStream file = new FileInputStream(new File("C:\\test.xls"));
//Get the workbook instance for XLS file
HSSFWorkbook workbook = new HSSFWorkbook(test);
//Get first sheet from the workbook
HSSFSheet sheet = workbook.getSheetAt(0);
//Get iterator to all the rows in current sheet
Iterator<Row> rowIterator = sheet.iterator();
//Get iterator to all cells of current row
Iterator<Cell> cellIterator = row.cellIterator();
try {
FileInputStream file = new FileInputStream(new File("C:\\test.xls"));
//Get the workbook instance for XLS file
HSSFWorkbook workbook = new HSSFWorkbook(file);
//Get first sheet from the workbook
HSSFSheet sheet = workbook.getSheetAt(0);
//Iterate through each rows from first sheet
Iterator<Row> rowIterator = sheet.iterator();
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();
switch(cell.getCellType()) {
case Cell.CELL_TYPE_BOOLEAN:
System.out.print(cell.getBooleanCellValue() + "\t\t");
break;
case Cell.CELL_TYPE_NUMERIC:
System.out.print(cell.getNumericCellValue() + "\t\t");
break;
case Cell.CELL_TYPE_STRING:
System.out.print(cell.getStringCellValue() + "\t\t");
break;
}
}
System.out.println("");
}
file.close();
FileOutputStream out =
new FileOutputStream(new File("C:\\test.xls"));
workbook.write(out);
out.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
有什么帮助吗?
提前谢谢你
public class sample2
{
public static void main(String[] args) {
new sample2().sample2(); // This is wrong too.
}
}
这之后的所有代码都是毫无意义的。您的课程基本上以第二个}
结束
您可能希望在main()
方法中移动所有这些内容
另外,这段代码位于main()
方法newsample2().sample2()中代码>是错误的
应该是这样的
sample2 s = new sample2();
这之后的所有代码都是毫无意义的。您的课程基本上以第二个}
结束
您可能希望在main()
方法中移动所有这些内容
另外,这段代码位于main()
方法newsample2().sample2()中代码>是错误的
应该是这样的
sample2 s = new sample2();
删除代码中的最后一个大括号:
{
public static void main(String[] args) {
new sample2().sample2();
}
}
然后创建一个名为test2()的方法,如下所示:
public void sample2(){ //Put your code here }
删除代码中的最后一个大括号:
{
public static void main(String[] args) {
new sample2().sample2();
}
}
然后创建一个名为test2()的方法,如下所示:
public void sample2(){ //Put your code here }
我做了这些更改,并在线程“main”java.lang中出现异常。错误:未解决的编译问题:在sample2.main(sample2.java:16)有什么想法吗?我做了这些更改,并在线程“main”java.lang中出现异常。错误:未解决的编译问题:在sample2.main(sample2.java:16)有什么想法吗?