Use poi to export Excel files and solve Chinese name garbled characters

Use poi to export Excel file and solve Chinese name garbled

the first method:

@Action("subAreaAction_exportXLs")

         public String exportXLs() throws IOException{

                   List<SubArea> list = subAreaService .findAll(); // Query the database to get parameters

                   // Create the document object of hssfworkbook  Excel

                   HSSFWorkbook wb = new HSSFWorkbook();

                   // create new sheet

                   HSSFSheet sheet = wb .createSheet( " Partition Data " );

                   // set the first line

                   HSSFRow row = sheet.createRow(0);

                   // Set the properties of each column of the first row

                   row .createCell(0).setCellValue( " Partition Number " );

                   row .createCell(1).setCellValue( " Partition Name " );

                   row .createCell(2).setCellValue( " Keyword " );

                   row .createCell(3).setCellValue( " auxiliary keyword " );

                   row .createCell(4).setCellValue( " province and city " );

                   // loop through the collection

                   for (SubArea subArea : list) {

                            // Add the attribute to a new line

                            // According to the method of sheet , get the row number of the last row + 1 as the row number of the next row

                            HSSFRowrows = sheet.createRow(sheet.getLastRowNum()+1);

                            rows.createCell(0).setCellValue(subArea.getId());

                            rows.createCell(1).setCellValue(subArea.getStartNum());

                            rows.createCell(2).setCellValue(subArea.getKeyWords());

                            rows.createCell(3).setCellValue(subArea.getAssistKeyWords());

                            rows.createCell(4).setCellValue(subArea.getArea().getName());

                   }

                   // output Excel file  

                   // The ssh framework used here , output Excel requires an output stream

                   // get response

                   HttpServletResponseresponse = ServletActionContext.getResponse();

                   // get the output stream

                   OutputStream output = response.getOutputStream();

                  response.reset();

                   // Set the partition Chinese name

                   String filename = " Partition Information " ;

                   // Set the encoding of the response

                   response .setContentType( "application/x-download" ); // The following three lines are the key code to deal with garbled characters

                   response.setCharacterEncoding("utf-8"); 

                   // Set the Content-disposition corresponding to the browser response header

                   response.setHeader("Content-disposition", "attachment;filename="+new String(filename.getBytes("gbk"), "iso8859-1")+".xls");

                   // wb output

                   wb.write(output);

                   output.close();

                   returnNONE;

}

                

The second method:

Use tools

// Download the exel file as an attachment

                   // File download: one stream (file output stream) and two headers (content format MIME type, file opening method (browser embedded mode development, attachment download attachment ))

                   String fileName = " Partition data.xls" ;

                  

                   // handle Chinese problems

                   // By getting the browser information in the request header

                   String agent = ServletActionContext.getRequest().getHeader("User-Agent");

                   // Encode the text according to the browser

                   fileName = FileUtils.encodeDownloadFilename(fileName, agent);

                   HttpServletResponse response =ServletActionContext.getResponse();

                   // set header information

                   response.setHeader("contentType", "application/vnd.ms-excel");

                   response.setHeader("content-disposition", "attachment;fileName="+fileName);

                   OutputStream stream = response.getOutputStream();

                   workbook.write(stream);

                   returnNONE;

Tool class code:

package cn.itcast.bos.utils;

import java.io.IOException;
import java.net.URLEncoder;

import sun.misc.BASE64Encoder;

public class FileUtils {
        /**
         * When downloading files, name the attachment for different browsers encoding
         *
         * @param filename
         * download file name
         * @param agent
         * client browser
         * @return encoded download attachment name
         * @throws IOException
         */
        public static String encodeDownloadFilename(String filename, String agent)
                throws IOException {
            if (agent.contains("Firefox")) { // Firefox
                filename = "=?UTF-8?B?"
                        + new BASE64Encoder().encode(filename.getBytes("utf-8"))
                        + "?=";
                filename = filename.replaceAll("\r\n", "");
            } else { // IE及其他浏览器
                filename = URLEncoder.encode(filename, "utf-8");
                filename = filename.replace("+"," ");
            }
            return filename;
        }
}