报表导出

由于之后项目需要，今天提前了解了下报表导出相关信息。按照网上资料整理了下，如下代package com.yabushan.test.util;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
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.hssf.util.HSSFColor;
import org.apache.poi.hssf.util.Region;

import jxl.CellView;
import jxl.Range;
import jxl.Sheet;
import jxl.Workbook;
import jxl.format.Colour;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableImage;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;

/**
* 测试导出excel报表
* @author yabushan
* 需要的jar包：(两种方式)
* jxl.jar
* poi-3.2-FINAL.jar
*
*/
@SuppressWarnings("deprecation")
public class TestExportExcel {
public static void main(String[] args) {
System.out.println("======创建报表");
// createExcel();
//displayExcel();
exportPoiExcel();
}
/**
* jax.jar包方式
*/
public static void createExcel(){
try {
//打开文件
WritableWorkbook workbook = Workbook.createWorkbook(new File("E:\\test.xls"));
//生成名为“第一页”的工作表，参数0表示这是第一页
WritableSheet sheet=workbook.createSheet("第一页", 0);
//在Label对象的构造子中指明单元格位置是第一列第一行(0，0)
//以及单元格内容为test
Label label=new Label(0, 0, "test");
//将定义好的单元格添加到工作表中
sheet.addCell(label);
/**
* 生成一个保存数字的单元格
* 必须使用Number的完整包路径，否则又语法歧义
* 单元格位置是第二列，第一行，值为789.123
*/
jxl.write.Number number=new jxl.write.Number(1, 0, 757);
sheet.addCell(number);
sheet.insertColumn(1);
workbook.copySheet(0, "第二页", 1);
WritableSheet sheet2=workbook.getSheet(1);
Range range=sheet2.mergeCells(0, 0, 0, 8);
sheet2.unmergeCells(range);
sheet2.addImage(new WritableImage(5, 5,10,20,new File("E:\\11.jpg")));
CellView cView=new CellView();
WritableCellFormat cFormat=new WritableCellFormat();
cFormat.setBackground(Colour.BLUE);
cView.setFormat(cFormat);
cView.setSize(6000);
cView.setSize(10);
sheet2.setColumnView(2, cView);
workbook.write();
workbook.close();
} catch (Exception e) {
// TODO: handle exception
}
}
/**
* 读取excel中的内容
*/
public static void displayExcel(){
try {
Workbook wb=Workbook.getWorkbook(new File("E:\\test.xls"));
Sheet s=wb.getSheet(0);
System.out.println(s.getCell(0,0).getContents());
System.out.println(s.getCell(2,0).getContents());
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}

/**
* poi方式创建excel
*/

@SuppressWarnings("deprecation")
public static void exportPoiExcel(){
HSSFWorkbook wb=new HSSFWorkbook();//创建工作簿

HSSFFont font=wb.createFont();
font.setFontHeightInPoints((short) 24);
font.setFontName("宋体");
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);

HSSFCellStyle style=wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style.setFillForegroundColor(HSSFColor.LIGHT_TURQUOISE.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom(HSSFCellStyle.BORDER_THICK);
style.setFont(font);

HSSFSheet sheet=wb.createSheet("test");//创建工作表，名称为test

int iRow=0;//行号
int iMaxCol=17;//最大列数
HSSFRow row=sheet.createRow(iRow);
HSSFCell cell=row.createCell(0);
cell.setCellValue(new HSSFRichTextString("测试excel"));
cell.setCellStyle(style);
sheet.addMergedRegion(new Region(iRow,(short)0,iRow,(short)(iMaxCol-1)));

ByteArrayOutputStream os=new ByteArrayOutputStream();

try {
wb.write(os);
} catch (Exception e) {
e.printStackTrace();
}

byte[] xls=os.toByteArray();
File file=new File("E:\\test.xls");
OutputStream outputStream=null;
try {
outputStream=new FileOutputStream(file);
try {
outputStream.write(xls);
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
}

}


码只是一个简单的示例，先做下笔记，后续继续完善！