PoiBigExcelExportView.java
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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.handler.inter.IExcelExportServer;
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.util.Collections;
import java.util.List;
import java.util.Map;
/**
* @author : caoliang
* @date : 2017/11/6:下午2:02
*/
public class PoiBigExcelExportView extends AbstractExcelView {
@Override
protected void renderMergedOutputModel(String fileName, Map<String, Object> model, HttpServletRequest request,
HttpServletResponse response) throws Exception {
Workbook workbook = ExcelExportUtil.exportBigExcel(
(ExportParams) model.get(ExcelConstants.PARAMS),
(Class<?>) model.get(ExcelConstants.CLASS), Collections.EMPTY_LIST);
IExcelExportServer server = (IExcelExportServer) model.get(ExcelConstants.DATA_INTER);
int page = 2;
List<Object> list = server.selectListForExcelExport(model.get(ExcelConstants.DATA_PARAMS), page++);
while (list != null && list.size() > 0) {
workbook = ExcelExportUtil.exportBigExcel(
(ExportParams) model.get(ExcelConstants.PARAMS),
(Class<?>) model.get(ExcelConstants.CLASS), list);
list = server.selectListForExcelExport(model.get(ExcelConstants.DATA_PARAMS),
page++);
}
ExcelExportUtil.closeExportBigExcel();
if (workbook instanceof HSSFWorkbook) {
fileName += HSSF;
} else {
fileName += XSSF;
}
if (isIE(request)) {
fileName = java.net.URLEncoder.encode(fileName, "UTF8");
} else {
fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
}
response.setHeader("content-disposition", "attachment;filename=" + fileName);
response.setContentType(CONTENT_TYPE);
ServletOutputStream out = response.getOutputStream();
workbook.write(out);
out.flush();
}
}