将jtable导出到java netbeans中的excel
我在google的帮助下编写了以下代码,用于将jtable导出到excel,但我无法将其导出到excel,而且我还得到了空指针将jtable导出到java netbeans中的excel,java,excel,swing,netbeans,jtable,Java,Excel,Swing,Netbeans,Jtable,我在google的帮助下编写了以下代码,用于将jtable导出到excel,但我无法将其导出到excel,而且我还得到了空指针 cell.setCellValue(model.getValueAt(i, j).toString()); 整个代码是 try { HSSFWorkbook fWorkbook = new HSSFWorkbook(); HSSFSheet fSheet; fSheet = fWorkbook.createSheet("
cell.setCellValue(model.getValueAt(i, j).toString());
整个代码是
try {
HSSFWorkbook fWorkbook = new HSSFWorkbook();
HSSFSheet fSheet;
fSheet = fWorkbook.createSheet("new Sheet");
HSSFFont sheetTitleFont = fWorkbook.createFont();
File file = new File("D:\\MOHIT\\bill report\\report.xls");
HSSFCellStyle cellStyle = fWorkbook.createCellStyle();
sheetTitleFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
//sheetTitleFont.setColor();
TableModel model = report_table.getModel();
TableColumnModel model1 = report_table.getTableHeader().getColumnModel();
HSSFRow fRow1 = fSheet.createRow((short) 0);
for (int i = 0; i < model1.getColumnCount(); i++){
HSSFCell cell = fRow1.createCell((short) i);
cell.setCellValue(model1.getColumn(i).getHeaderValue().toString());
}
for (int i = 1; i < model.getRowCount(); i++) {
HSSFRow fRow = fSheet.createRow((short) i);
for (int j = 1; j < model.getColumnCount(); j++) {
HSSFCell cell = fRow.createCell((short) j);
cell.setCellValue(model.getValueAt(i, j).toString());
cell.setCellStyle(cellStyle);
}
}
FileOutputStream fileOutputStream;
fileOutputStream = new FileOutputStream(file);
try (BufferedOutputStream bos = new BufferedOutputStream(fileOutputStream)) {
fWorkbook.write(bos);
}
fileOutputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
试试看{
HSSFWorkbook fWorkbook=新的HSSFWorkbook();
HSSFSheet fSheet;
fSheet=fWorkbook.createSheet(“新工作表”);
hsffort sheetTitleFont=fWorkbook.createFont();
File File=新文件(“D:\\MOHIT\\bill report\\report.xls”);
HSSFCellStyle cellStyle=fWorkbook.createCellStyle();
板材标题字体立根重量(hs字体粗体重量_粗体);
//sheetTitleFont.setColor();
TableModel model=报表_table.getModel();
TableColumnModel1=report_table.getTableHeader().getColumnModel();
HSSFRow fRow1=fSheet.createRow((短)0);
对于(int i=0;i
有人能告诉我为什么会出现空指针异常以及如何更正它。尝试替换
cell.setCellValue(model.getValueAt(i, j).toString());
借
看看我在评论中发布的链接
p.S.类对象
在包java.util
中定义,请尝试替换
cell.setCellValue(model.getValueAt(i, j).toString());
借
看看我在评论中发布的链接
p.S.类
对象
在包java.util
中定义感谢alot bro替换解决了我的问题感谢alot bro替换解决了我的问题