200 lines
6.9 KiB
XML
200 lines
6.9 KiB
XML
|
<?xml version="1.0" encoding="UTF-8"?>
|
||
|
<!--
|
||
|
====================================================================
|
||
|
Licensed to the Apache Software Foundation (ASF) under one or more
|
||
|
contributor license agreements. See the NOTICE file distributed with
|
||
|
this work for additional information regarding copyright ownership.
|
||
|
The ASF licenses this file to You under the Apache License, Version 2.0
|
||
|
(the "License"); you may not use this file except in compliance with
|
||
|
the License. You may obtain a copy of the License at
|
||
|
|
||
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
||
|
Unless required by applicable law or agreed to in writing, software
|
||
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
See the License for the specific language governing permissions and
|
||
|
limitations under the License.
|
||
|
====================================================================
|
||
|
-->
|
||
|
<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V1.1//EN" "../dtd/document-v11.dtd">
|
||
|
|
||
|
<document>
|
||
|
<header>
|
||
|
<title>Converting existing HSSF Usermodel code to SS Usermodel (for XSSF and HSSF)</title>
|
||
|
<authors>
|
||
|
<person email="nick@apache.org" name="Nick Burch" id="NB"/>
|
||
|
</authors>
|
||
|
</header>
|
||
|
<body>
|
||
|
<section><title>Converting existing HSSF Usermodel code to SS Usermodel (for XSSF and HSSF)</title>
|
||
|
|
||
|
<section><title>Why change?</title>
|
||
|
<p>If you have existing HSSF usermodel code that works just
|
||
|
fine, and you don't want to use the new OOXML XSSF support,
|
||
|
then you probably don't need to. Your existing HSSF only code
|
||
|
will continue to work just fine.</p>
|
||
|
<p>However, if you want to be able to work with both HSSF for
|
||
|
your .xls files, and also XSSF for .xslx files, then you will
|
||
|
need to make some slight tweaks to your code.</p>
|
||
|
</section>
|
||
|
<section><title>org.apache.poi.ss.usermodel</title>
|
||
|
<p>The new SS usermodel (org.apache.poi.ss.usermodel) is very
|
||
|
heavily based on the old HSSF usermodel
|
||
|
(org.apache.poi.hssf.usermodel). The main difference is that
|
||
|
the package name and class names have been tweaked to remove
|
||
|
HSSF from them. Otherwise, the new SS Usermodel interfaces
|
||
|
should provide the same functionality.</p>
|
||
|
</section>
|
||
|
<section><title>Constructors</title>
|
||
|
<p>Calling the empty HSSFWorkbook remains as the way to
|
||
|
create a new, empty Workbook object. To open an existing
|
||
|
Worbook, you should now call WorkbookFactory.create(inp).</p>
|
||
|
<p>For all other cases when you would have called a
|
||
|
Usermodel constructor, such as 'new HSSFRichTextString()' or
|
||
|
'new HSSFDataFormat', you should instead use a CreationHelper.
|
||
|
There's a method on the Workbook to get a CreationHelper, and
|
||
|
the CreationHelper will then handle constructing new objects
|
||
|
for you.</p>
|
||
|
</section>
|
||
|
<section><title>Other Code</title>
|
||
|
<p>For all other code, generally change a reference from
|
||
|
org.apache.poi.hssf.usermodel.HSSFFoo to a reference to
|
||
|
org.apache.poi.ss.usermodel.Foo. Method signatures should
|
||
|
otherwise remain the same, and it should all then work for
|
||
|
both XSSF and HSSF.</p>
|
||
|
</section>
|
||
|
</section>
|
||
|
<section><title>Worked Examples</title>
|
||
|
<section><title>Old HSSF Code</title>
|
||
|
<source><![CDATA[
|
||
|
// import org.apache.poi.hssf.usermodel.*;
|
||
|
|
||
|
HSSFWorkbook wb = new HSSFWorkbook();
|
||
|
// create a new sheet
|
||
|
HSSFSheet s = wb.createSheet();
|
||
|
// declare a row object reference
|
||
|
HSSFRow r = null;
|
||
|
// declare a cell object reference
|
||
|
HSSFCell c = null;
|
||
|
// create 2 cell styles
|
||
|
HSSFCellStyle cs = wb.createCellStyle();
|
||
|
HSSFCellStyle cs2 = wb.createCellStyle();
|
||
|
HSSFDataFormat df = wb.createDataFormat();
|
||
|
|
||
|
// create 2 fonts objects
|
||
|
HSSFFont f = wb.createFont();
|
||
|
HSSFFont f2 = wb.createFont();
|
||
|
|
||
|
// Set font 1 to 12 point type, blue and bold
|
||
|
f.setFontHeightInPoints((short) 12);
|
||
|
f.setColor( (short)0xc );
|
||
|
f.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
|
||
|
|
||
|
// Set font 2 to 10 point type, red and bold
|
||
|
f2.setFontHeightInPoints((short) 10);
|
||
|
f2.setColor( (short)HSSFFont.COLOR_RED );
|
||
|
f2.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
|
||
|
|
||
|
// Set cell style and formatting
|
||
|
cs.setFont(f);
|
||
|
cs.setDataFormat(df.getFormat("#,##0.0"));
|
||
|
|
||
|
// Set the other cell style and formatting
|
||
|
cs2.setBorderBottom(cs2.BORDER_THIN);
|
||
|
cs2.setDataFormat(HSSFDataFormat.getBuiltinFormat("text"));
|
||
|
cs2.setFont(f2);
|
||
|
|
||
|
|
||
|
// Define a few rows
|
||
|
for(short rownum = (short)0; rownum < 30; rownum++) {
|
||
|
HSSFRow r = s.createRow(rownum);
|
||
|
for(short cellnum = (short)0; cellnum < 10; cellnum += 2) {
|
||
|
HSSFCell c = r.createCell(cellnum);
|
||
|
HSSFCell c2 = r.createCell(cellnum+1);
|
||
|
|
||
|
c.setCellValue((double)rownum + (cellnum/10));
|
||
|
c2.setCellValue(new HSSFRichTextString("Hello! " + cellnum);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Save
|
||
|
FileOutputStream out = new FileOutputStream("workbook.xls");
|
||
|
wb.write(out);
|
||
|
out.close();
|
||
|
]]></source>
|
||
|
</section>
|
||
|
<section><title>New, generic SS Usermodel Code</title>
|
||
|
<source><![CDATA[
|
||
|
// import org.apache.poi.ss.usermodel.*;
|
||
|
|
||
|
Workbook[] wbs = new Workbook[] { new HSSFWorkbook(), new XSSFWorkbook() };
|
||
|
for(int i=0; i<wbs.length; i++) {
|
||
|
Workbook wb = wbs[i];
|
||
|
CreationHelper createHelper = wb.getCreationHelper();
|
||
|
|
||
|
// create a new sheet
|
||
|
Sheet s = wb.createSheet();
|
||
|
// declare a row object reference
|
||
|
Row r = null;
|
||
|
// declare a cell object reference
|
||
|
Cell c = null;
|
||
|
// create 2 cell styles
|
||
|
CellStyle cs = wb.createCellStyle();
|
||
|
CellStyle cs2 = wb.createCellStyle();
|
||
|
DataFormat df = wb.createDataFormat();
|
||
|
|
||
|
// create 2 fonts objects
|
||
|
Font f = wb.createFont();
|
||
|
Font f2 = wb.createFont();
|
||
|
|
||
|
// Set font 1 to 12 point type, blue and bold
|
||
|
f.setFontHeightInPoints((short) 12);
|
||
|
f.setColor( (short)0xc );
|
||
|
f.setBoldweight(Font.BOLDWEIGHT_BOLD);
|
||
|
|
||
|
// Set font 2 to 10 point type, red and bold
|
||
|
f2.setFontHeightInPoints((short) 10);
|
||
|
f2.setColor( (short)Font.COLOR_RED );
|
||
|
f2.setBoldweight(Font.BOLDWEIGHT_BOLD);
|
||
|
|
||
|
// Set cell style and formatting
|
||
|
cs.setFont(f);
|
||
|
cs.setDataFormat(df.getFormat("#,##0.0"));
|
||
|
|
||
|
// Set the other cell style and formatting
|
||
|
cs2.setBorderBottom(cs2.BORDER_THIN);
|
||
|
cs2.setDataFormat(df.getFormat("text"));
|
||
|
cs2.setFont(f2);
|
||
|
|
||
|
|
||
|
// Define a few rows
|
||
|
for(int rownum = 0; rownum < 30; rownum++) {
|
||
|
Row r = s.createRow(rownum);
|
||
|
for(int cellnum = 0; cellnum < 10; cellnum += 2) {
|
||
|
Cell c = r.createCell(cellnum);
|
||
|
Cell c2 = r.createCell(cellnum+1);
|
||
|
|
||
|
c.setCellValue((double)rownum + (cellnum/10));
|
||
|
c2.setCellValue(
|
||
|
createHelper.createRichTextString("Hello! " + cellnum)
|
||
|
);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Save
|
||
|
String filename = "workbook.xls";
|
||
|
if(wb instanceof XSSFWorkbook) {
|
||
|
filename = filename + "x";
|
||
|
}
|
||
|
|
||
|
FileOutputStream out = new FileOutputStream(filename);
|
||
|
wb.write(out);
|
||
|
out.close();
|
||
|
}
|
||
|
]]></source>
|
||
|
</section>
|
||
|
</section>
|
||
|
</body>
|
||
|
</document>
|