PoiSingleExcelView.java
2.6 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
package com.bckefu.excel.view;
import com.bckefu.excel.ExcelExportUtil;
import com.bckefu.excel.entity.ExportParams;
import com.bckefu.excel.entity.vo.ExcelConstants;
import com.bckefu.excel.export.base.ExcelExportServer;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Workbook;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.net.URLEncoder;
import java.util.Collection;
import java.util.List;
import java.util.Map;
/**
* @author : caoliang
* @date : 2017/11/6:下午2:01
*/
public class PoiSingleExcelView extends AbstractExcelView {
@Override
void renderMergedOutputModel(String fileName, Map<String, Object> model, HttpServletRequest request, HttpServletResponse response) throws Exception {
Workbook workbook = null;
if (model.containsKey(ExcelConstants.MAP_LIST)) {
List<Map<String, Object>> list = (List<Map<String, Object>>) model
.get(ExcelConstants.MAP_LIST);
if (list.size() == 0) {
throw new RuntimeException("MAP_LIST IS NULL");
}
workbook = ExcelExportUtil.exportExcel(
(ExportParams) list.get(0).get(ExcelConstants.PARAMS), (Class<?>) list.get(0)
.get(ExcelConstants.CLASS),
(Collection<?>) list.get(0).get(ExcelConstants.DATA_LIST));
for (int i = 1; i < list.size(); i++) {
new ExcelExportServer().createSheet(workbook,
(ExportParams) list.get(i).get(ExcelConstants.PARAMS), (Class<?>) list
.get(i).get(ExcelConstants.CLASS),
(Collection<?>) list.get(i).get(ExcelConstants.DATA_LIST));
}
} else {
workbook = ExcelExportUtil.exportExcel(
(ExportParams) model.get(ExcelConstants.PARAMS),
(Class<?>) model.get(ExcelConstants.CLASS),
(Collection<?>) model.get(ExcelConstants.DATA_LIST));
}
if (workbook instanceof HSSFWorkbook) {
fileName += HSSF;
} else {
fileName += XSSF;
}
if (isIE(request)) {
fileName = URLEncoder.encode(fileName, "UTF8");
} else {
fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
}
response.setHeader("content-disposition", "attachment;filename=" + fileName);
ServletOutputStream out = response.getOutputStream();
workbook.write(out);
out.flush();
}
}