如何在ApachePOI和java中使用rowiterator?
我试图在java中使用ApachePOI读取excel文件,但是Eclipse没有编译代码如何在ApachePOI和java中使用rowiterator?,java,row,apache-poi,hssf,Java,Row,Apache Poi,Hssf,我试图在java中使用ApachePOI读取excel文件,但是Eclipse没有编译代码 public class ReadExcel { public static void main(String[] args) throws IOException { FileInputStream file = new FileInputStream(new File("C:\\Users\\XXXXXXXXXXXXXXXXal\\042012.xls"));
public class ReadExcel {
public static void main(String[] args) throws IOException {
FileInputStream file = new FileInputStream(new File("C:\\Users\\XXXXXXXXXXXXXXXXal\\042012.xls"));
HSSFWorkbook wb = new HSSFWorkbook(file);
HSSFSheet sheet = wb.getSheetAt(0);
Iterator<Row> rowIterator = sheet.iterator();
while (rowIterator.hasNext()) {
Row row = rowIterator().next(); \\ THIS LINE GETS UNDERLINED BY ECLIPSE!!!
Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext()) {
Cell cell = cellIterator.next();
System.out.print(cell.getStringCellValue() + "\t\t");
}
}
file.close();
FileOutputStream out =
new FileOutputStream(new File("C:\\test.xls"));
wb.write(out);
out.close();
}
}
public类ReadExcel{
公共静态void main(字符串[]args)引发IOException{
FileInputStream文件=新的FileInputStream(新文件(“C:\\Users\\XXXXXXXXXXXXXX AL\\042012.xls”);
HSSF工作簿wb=新的HSSF工作簿(文件);
HSSFSheet sheet=wb.getSheetAt(0);
迭代器rowIterator=sheet.Iterator();
while(roweiterator.hasNext()){
行=行迭代器().next();\\这行由ECLIPSE加下划线!!!
迭代器cellIterator=row.cellIterator();
while(cellIterator.hasNext()){
Cell=cellIterator.next();
System.out.print(cell.getStringCellValue()+“\t\t”);
}
}
file.close();
文件输出流输出=
新文件输出流(新文件(“C:\\test.xls”);
wb.写(出);
out.close();
}
}
Eclipse总是在行=行迭代器()下加下划线代码>行。我不知道为什么?如何改进它?在这一行:
Row row = rowIterator().next();
您正试图在自己的类上调用名为rowIterator
的方法,当然您没有这样的方法
从上下文中可以清楚地看出,您的意思是引用已有的rowditerator
变量。将其更改为:
Row row = rowIterator.next(); // No () on rowIterator
您需要删除行迭代器后面的“()”
而不是:
rowIterator().next();
应该是:
rowIterator.next()
问题不在于eclipse,而在于代码。不能将作为变量的rowIterator视为方法。不能使用()语法调用变量
试试这个:
public static void main(String[] args) throws IOException {
FileInputStream file = new FileInputStream(new File("C:\\Users\\XXXXXXXXXXXXXXXXal\\042012.xls"));
HSSFWorkbook wb = new HSSFWorkbook(file);
HSSFSheet sheet = wb.getSheetAt(0);
Iterator<Row> rowIterator = sheet.iterator();
while (rowIterator.hasNext()) {
Row row = rowIterator.next();
Iterator <Cell> cellIterator = row.cellIterator();
while (cellIterator.hasNext()) {
Cell cell = cellIterator.next();
System.out.print(cell.getStringCellValue() + "\t\t");
}
}
file.close();
FileOutputStream out =
new FileOutputStream(new File("C:\\test.xls"));
wb.write(out);
out.close();
}
publicstaticvoidmain(字符串[]args)引发IOException{
FileInputStream文件=新的FileInputStream(新文件(“C:\\Users\\XXXXXXXXXXXXXX AL\\042012.xls”);
HSSF工作簿wb=新的HSSF工作簿(文件);
HSSFSheet sheet=wb.getSheetAt(0);
迭代器rowIterator=sheet.Iterator();
while(roweiterator.hasNext()){
行=行迭代器。下一步();
迭代器cellIterator=row.cellIterator();
while(cellIterator.hasNext()){
Cell=cellIterator.next();
System.out.print(cell.getStringCellValue()+“\t\t”);
}
}
file.close();
文件输出流输出=
新文件输出流(新文件(“C:\\test.xls”);
wb.写(出);
out.close();
}
尝试从此行Row=rowditerator.next()中删除括号;而不是Row=rowditerator().next();