java实现xls、csv文件导出或下载
2016-06-01 11:58
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一般在java开发中需要下载xls或者是csv文件，需要在做报表或者是数据采集的时候需要，现将代码片段摘出：
还有一种情况就是将后台获取的数据以xls或者是csv格式为文件导出，方便打印或者是传阅等。
public String exportMouldCsv() {
OutputStream os = null;
WritableWorkbook wbook = null;
try {
HttpServletResponse response = ServletActionContext.getResponse();
// 取得输出流
os = response.getOutputStream();
// 清空输出流
response.reset();
// 设定输出文件头
String fileName = "文件名设置.xls";
fileName = new String(fileName.getBytes("GBK"), "iso-8859-1");
response.setHeader("Content-disposition", "attachment; filename="
+ fileName);
// 定义输出类型
response.setContentType("application/msexcel");
// 建立excel文件
wbook = Workbook.createWorkbook(os);
WritableCellFormat cellFormat = new WritableCellFormat();
cellFormat.setAlignment(jxl.format.Alignment.CENTRE);
// WritableSheet.setColumnView(int i,int width)
// 作用是指定第i+1列的宽度，比如：
// 将第一列的宽度设为30
// sheet.setColumnView(0,30)
// wsheet.setRowView(0,10)
WritableFont font1 = new WritableFont(WritableFont.TIMES, 10,
WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE,
jxl.format.Colour.BLACK);
WritableCellFormat cellFormat_top = new WritableCellFormat();
cellFormat_top.setAlignment(jxl.format.Alignment.CENTRE);
// 设置单元格背景颜色
// cellFormat_top.setBackground(Colour.LIGHT_BLUE);
// 设置字体格式
cellFormat_top.setFont(font1);
cellFormat_top.setBorder(jxl.format.Border.ALL,
jxl.format.BorderLineStyle.THIN);
WritableCellFormat cellFormat_bottom = new WritableCellFormat();
cellFormat_bottom.setBorder(jxl.format.Border.ALL,
jxl.format.BorderLineStyle.THIN);
WritableCellFormat cellFormat_bottom_1 = new WritableCellFormat();
// 设置居中
cellFormat_bottom_1.setAlignment(jxl.format.Alignment.CENTRE);
// 设置表格边框
cellFormat_bottom_1.setBorder(jxl.format.Border.ALL,
jxl.format.BorderLineStyle.THIN);
WritableSheet wsheet = wbook.createSheet("
文件名设置", 0);
wsheet.setRowView(0, 300);
wsheet.setRowView(1, 300);
wsheet.setColumnView(0, 10);
wsheet.setColumnView(1, 20);
wsheet.setColumnView(2, 15);
wsheet.setColumnView(3, 15);
wsheet.setColumnView(4, 15);
wsheet.setColumnView(5, 15);
wsheet.setColumnView(6, 20);
wsheet.setColumnView(7, 30);
//表头设置
Label label_0 = new Label(0, 0, "组织");
label_0.setCellFormat(cellFormat_top);
wsheet.addCell(label_0);
Label label_1 = new Label(1, 0, "代码");
label_1.setCellFormat(cellFormat_top);
wsheet.addCell(label_1);
Label label_2 = new Label(2, 0, "名称");
label_2.setCellFormat(cellFormat_top);
wsheet.addCell(label_2);
Label label_3 = new Label(3, 0, "年");
label_3.setCellFormat(cellFormat_top);
wsheet.addCell(label_3);
Label label_4 = new Label(4, 0, "月");
label_4.setCellFormat(cellFormat_top);
wsheet.addCell(label_4);
Label label_5 = new Label(5, 0, "项");
label_5.setCellFormat(cellFormat_top);
wsheet.addCell(label_5);
Label label_6 = new Label(6, 0, "项名称");
label_6.setCellFormat(cellFormat_top);
wsheet.addCell(label_6);
Label label_7 = new Label(7, 0, "数量");
label_7.setCellFormat(cellFormat_top);
wsheet.addCell(label_7);
wbook.write();
} catch (Exception e) {
logger.error(e);
e.printStackTrace();
} finally {
if (wbook != null) {
try {
wbook.close();
} catch (Exception e) {
logger.error(e);
}
wbook = null;
}
if (os != null) {
try {
os.close();
} catch (Exception e) {
logger.error(e);
}
os = null;
}
}
}还有一种情况就是将后台获取的数据以xls或者是csv格式为文件导出，方便打印或者是传阅等。
public String exportMouldCsv() {
OutputStream os = null;
WritableWorkbook wbook = null;
try {
HttpServletResponse response = ServletActionContext.getResponse();
// 取得输出流
os = response.getOutputStream();
// 清空输出流
response.reset();
// 设定输出文件头
String fileName = "文件名设置.xls";
fileName = new String(fileName.getBytes("GBK"), "iso-8859-1");
response.setHeader("Content-disposition", "attachment; filename="
+ fileName);
// 定义输出类型
response.setContentType("application/msexcel");
// 建立excel文件
wbook = Workbook.createWorkbook(os);
WritableCellFormat cellFormat = new WritableCellFormat();
cellFormat.setAlignment(jxl.format.Alignment.CENTRE);
// WritableSheet.setColumnView(int i,int width)
// 作用是指定第i+1列的宽度，比如：
// 将第一列的宽度设为30
// sheet.setColumnView(0,30)
// wsheet.setRowView(0,10)
WritableFont font1 = new WritableFont(WritableFont.TIMES, 10,
WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE,
jxl.format.Colour.BLACK);
WritableCellFormat cellFormat_top = new WritableCellFormat();
cellFormat_top.setAlignment(jxl.format.Alignment.CENTRE);
// 设置单元格背景颜色
// cellFormat_top.setBackground(Colour.LIGHT_BLUE);
// 设置字体格式
cellFormat_top.setFont(font1);
cellFormat_top.setBorder(jxl.format.Border.ALL,
jxl.format.BorderLineStyle.THIN);
WritableCellFormat cellFormat_bottom = new WritableCellFormat();
cellFormat_bottom.setBorder(jxl.format.Border.ALL,
jxl.format.BorderLineStyle.THIN);
WritableCellFormat cellFormat_bottom_1 = new WritableCellFormat();
// 设置居中
cellFormat_bottom_1.setAlignment(jxl.format.Alignment.CENTRE);
// 设置表格边框
cellFormat_bottom_1.setBorder(jxl.format.Border.ALL,
jxl.format.BorderLineStyle.THIN);
WritableSheet wsheet = wbook.createSheet("
文件名设置", 0);
wsheet.setRowView(0, 300);
wsheet.setRowView(1, 300);
wsheet.setColumnView(0, 10);
wsheet.setColumnView(1, 20);
wsheet.setColumnView(2, 15);
wsheet.setColumnView(3, 15);
wsheet.setColumnView(4, 15);
wsheet.setColumnView(5, 15);
wsheet.setColumnView(6, 20);
wsheet.setColumnView(7, 30);
//表头设置
Label label_0 = new Label(0, 0, "组织");
label_0.setCellFormat(cellFormat_top);
wsheet.addCell(label_0);
Label label_1 = new Label(1, 0, "代码");
label_1.setCellFormat(cellFormat_top);
wsheet.addCell(label_1);
Label label_2 = new Label(2, 0, "名称");
label_2.setCellFormat(cellFormat_top);
wsheet.addCell(label_2);
Label label_3 = new Label(3, 0, "年");
label_3.setCellFormat(cellFormat_top);
wsheet.addCell(label_3);
Label label_4 = new Label(4, 0, "月");
label_4.setCellFormat(cellFormat_top);
wsheet.addCell(label_4);
Label label_5 = new Label(5, 0, "项");
label_5.setCellFormat(cellFormat_top);
wsheet.addCell(label_5);
Label label_6 = new Label(6, 0, "项名称");
label_6.setCellFormat(cellFormat_top);
wsheet.addCell(label_6);
Label label_7 = new Label(7, 0, "数量");
label_7.setCellFormat(cellFormat_top);
wsheet.addCell(label_7);
//获取从后台获取数据，并赋值给对应的列值
MList mList = goalService.getMaterielViewList(mat);
if (null!=mList ) {
for (int i = 0; i < matList.size(); i++) {
Materiel materiel=new Materiel();
materiel=matList.get(i);
Label label_00 = new Label(0, (i+1), materiel.getMvgr1()==null?"":materiel.getMvgr1());
label_00.setCellFormat(cellFormat_bottom_1);
wsheet.addCell(label_00);
Label label_01 = new Label(1, (i+1), materiel.getBezei()==null?"":materiel.getBezei());
label_01.setCellFormat(cellFormat_bottom_left);
wsheet.addCell(label_01);
.....
//后面是自己来咯！！
}
}
wbook.write();
} catch (Exception e) {
logger.error(e);
e.printStackTrace();
} finally {
if (wbook != null) {
try {
wbook.close();
} catch (Exception e) {
logger.error(e);
}
wbook = null;
}
if (os != null) {
try {
os.close();
} catch (Exception e) {
logger.error(e);
}
os = null;
}
}
}
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