mirror of https://github.com/apache/poi.git
Reformatted so it fits on a page. I'll
git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352093 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Glen Stampoultzis
parent
60cba30078
commit
bdf5540010
|
|
@ -95,98 +95,135 @@ does not close it for you.
|
|||
</p>
|
||||
<p>Here is some example code (excerpted and adapted from
|
||||
org.apache.poi.hssf.dev.HSSF test class):</p>
|
||||
<source> FileOutputStream out = new FileOutputStream("/home/me/myfile.xls"); // create a new file
|
||||
HSSFWorkbook wb = new HSSFWorkbook(); // create a new workbook
|
||||
HSSFSheet s = wb.createSheet(); // create a new sheet
|
||||
HSSFRow r = null; // declare a row object reference
|
||||
HSSFCell c = null; // declare a cell object reference
|
||||
HSSFCellStyle cs = wb.createCellStyle(); // create 3 cell styles
|
||||
HSSFCellStyle cs2 = wb.createCellStyle();
|
||||
HSSFCellStyle cs3 = wb.createCellStyle();
|
||||
HSSFFont f = wb.createFont(); // create 2 fonts objects
|
||||
HSSFFont f2 = wb.createFont();
|
||||
|
||||
f.setFontHeightInPoints((short)12); //set font 1 to 12 point type
|
||||
f.setColor((short)0xA); //make it red
|
||||
f.setBoldweight(f.BOLDWEIGHT_BOLD); // make it bold
|
||||
//arial is the default font
|
||||
|
||||
f2.setFontHeightInPoints((short)10); //set font 2 to 10 point type
|
||||
f2.setColor((short)0xf); //make it the color at palette index 0xf (white)
|
||||
f2.setBoldweight(f2.BOLDWEIGHT_BOLD); //make it bold
|
||||
|
||||
cs.setFont(f); //set cell stlye
|
||||
cs.setDataFormat(HSSFDataFormat.getFormat("($#,##0_);[Red]($#,##0)"));//set the cell format see HSSFDataFromat for a full list
|
||||
|
||||
cs2.setBorderBottom(cs2.BORDER_THIN); //set a thin border
|
||||
cs2.setFillPattern((short)1); //fill w fg fill color
|
||||
cs2.setFillForegroundColor((short)0xA); // set foreground fill to red
|
||||
<source> // create a new file
|
||||
FileOutputStream out = new FileOutputStream("/home/me/myfile.xls");
|
||||
// create a new workbook
|
||||
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 3 cell styles
|
||||
HSSFCellStyle cs = wb.createCellStyle();
|
||||
HSSFCellStyle cs2 = wb.createCellStyle();
|
||||
HSSFCellStyle cs3 = wb.createCellStyle();
|
||||
// create 2 fonts objects
|
||||
HSSFFont f = wb.createFont();
|
||||
HSSFFont f2 = wb.createFont();
|
||||
|
||||
cs2.setFont(f2); // set the font
|
||||
//set font 1 to 12 point type
|
||||
f.setFontHeightInPoints((short)12);
|
||||
//make it red
|
||||
f.setColor((short)0xA);
|
||||
// make it bold
|
||||
//arial is the default font
|
||||
f.setBoldweight(f.BOLDWEIGHT_BOLD);
|
||||
|
||||
wb.setSheetName(0,"HSSF Test"); // set the sheet name to HSSF Test
|
||||
for (rownum = (short)0; rownum < 300; rownum++) // create a sheet with 300 rows (0-299)
|
||||
{
|
||||
r = s.createRow(rownum); // create a row
|
||||
if ( (rownum % 2) == 0) { // on every other row
|
||||
r.setHeight((short)0x249); // make the row height bigger (in twips - 1/20 of a point)
|
||||
//set font 2 to 10 point type
|
||||
f2.setFontHeightInPoints((short)10);
|
||||
//make it the color at palette index 0xf (white)
|
||||
f2.setColor((short)0xf);
|
||||
//make it bold
|
||||
f2.setBoldweight(f2.BOLDWEIGHT_BOLD);
|
||||
|
||||
//set cell stlye
|
||||
cs.setFont(f);
|
||||
//set the cell format see HSSFDataFromat for a full list
|
||||
cs.setDataFormat(HSSFDataFormat.getFormat("($#,##0_);[Red]($#,##0)"));
|
||||
|
||||
//set a thin border
|
||||
cs2.setBorderBottom(cs2.BORDER_THIN);
|
||||
//fill w fg fill color
|
||||
cs2.setFillPattern((short)1);
|
||||
// set foreground fill to red
|
||||
cs2.setFillForegroundColor((short)0xA);
|
||||
|
||||
// set the font
|
||||
cs2.setFont(f2);
|
||||
|
||||
// set the sheet name to HSSF Test
|
||||
wb.setSheetName(0,"HSSF Test");
|
||||
// create a sheet with 300 rows (0-299)
|
||||
for (rownum = (short)0; rownum < 300; rownum++)
|
||||
{
|
||||
// create a row
|
||||
r = s.createRow(rownum);
|
||||
// on every other row
|
||||
if ( (rownum % 2) == 0) {
|
||||
// make the row height bigger (in twips - 1/20 of a point)
|
||||
r.setHeight((short)0x249);
|
||||
}
|
||||
|
||||
|
||||
//r.setRowNum(( short ) rownum);
|
||||
for (short cellnum = (short)0; cellnum < 50; cellnum += 2) // create 50 cells (0-49) (the += 2 becomes apparent later
|
||||
// create 50 cells (0-49) (the += 2 becomes apparent later
|
||||
for (short cellnum = (short)0; cellnum < 50; cellnum += 2)
|
||||
{
|
||||
c = r.createCell(cellnum,HSSFCell.CELL_TYPE_NUMERIC); // create a numeric cell
|
||||
c.setCellValue(rownum * 10000 + cellnum // do some goofy math to demonstrate decimals
|
||||
// create a numeric cell
|
||||
c = r.createCell(cellnum,HSSFCell.CELL_TYPE_NUMERIC);
|
||||
// do some goofy math to demonstrate decimals
|
||||
c.setCellValue(rownum * 10000 + cellnum
|
||||
+ ((( double ) rownum / 1000)
|
||||
+ (( double ) cellnum / 10000)));
|
||||
|
||||
if ( (rownum % 2) == 0) { // on every other row
|
||||
c.setCellStyle(cs); // set this cell to the first cell style we defined
|
||||
|
||||
// on every other row
|
||||
if ( (rownum % 2) == 0) {
|
||||
// set this cell to the first cell style we defined
|
||||
c.setCellStyle(cs);
|
||||
}
|
||||
|
||||
// create a string cell (see why += 2 in the
|
||||
c = r.createCell((short)(cellnum+1),HSSFCell.CELL_TYPE_STRING);
|
||||
|
||||
c = r.createCell((short)(cellnum+1),HSSFCell.CELL_TYPE_STRING); // create a string cell (see why += 2 in the
|
||||
// for loop (we want 2 cells per loop)
|
||||
c.setCellValue("TEST"); // set the cell's string value to "TEST"
|
||||
s.setColumnWidth((short)(cellnum+1), (short)((50*8) / ((double)1/20)) ); // make this column a bit wider
|
||||
|
||||
if ( (rownum % 2) == 0) { // on every other row
|
||||
c.setCellStyle(cs2); // set this to the white on red cell style
|
||||
} // we defined above
|
||||
|
||||
}
|
||||
// set the cell's string value to "TEST"
|
||||
c.setCellValue("TEST");
|
||||
// make this column a bit wider
|
||||
s.setColumnWidth((short)(cellnum+1), (short)((50*8) / ((double)1/20)) );
|
||||
|
||||
// on every other row
|
||||
if ( (rownum % 2) == 0) {
|
||||
// set this to the white on red cell style
|
||||
// we defined above
|
||||
c.setCellStyle(cs2);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
//draw a thick black border on the row at the bottom using BLANKS
|
||||
rownum++; // advance 2 rows
|
||||
// advance 2 rows
|
||||
rownum++;
|
||||
|
||||
rownum++;
|
||||
|
||||
r = s.createRow(rownum);
|
||||
|
||||
|
||||
|
||||
cs3.setBorderBottom(cs3.BORDER_THICK); // define the third style to be the default
|
||||
// except with a thick black border at the bottom
|
||||
|
||||
for (short cellnum = (short)0; cellnum < 50; cellnum++) { //create 50 cells
|
||||
c = r.createCell(cellnum,HSSFCell.CELL_TYPE_BLANK); //create a blank type cell (no value)
|
||||
c.setCellStyle(cs3); // set it to the thick black border style
|
||||
|
||||
// define the third style to be the default
|
||||
// except with a thick black border at the bottom
|
||||
cs3.setBorderBottom(cs3.BORDER_THICK);
|
||||
|
||||
//create 50 cells
|
||||
for (short cellnum = (short)0; cellnum < 50; cellnum++) {
|
||||
//create a blank type cell (no value)
|
||||
c = r.createCell(cellnum,HSSFCell.CELL_TYPE_BLANK);
|
||||
// set it to the thick black border style
|
||||
c.setCellStyle(cs3);
|
||||
}
|
||||
|
||||
|
||||
//end draw thick black border
|
||||
|
||||
|
||||
//demonstrate adding/naming and deleting a sheet
|
||||
// create a sheet, set its title then delete it
|
||||
s = wb.createSheet();
|
||||
|
||||
|
||||
// demonstrate adding/naming and deleting a sheet
|
||||
// create a sheet, set its title then delete it
|
||||
s = wb.createSheet();
|
||||
wb.setSheetName(1,"DeletedSheet");
|
||||
wb.removeSheetAt(1);
|
||||
//end deleted sheet
|
||||
|
||||
|
||||
wb.write(out); // write the workbook to the output stream
|
||||
out.close(); // close our file (don't blow out our file handles
|
||||
|
||||
// write the workbook to the output stream
|
||||
// close our file (don't blow out our file handles
|
||||
wb.write(out);
|
||||
out.close();
|
||||
</source>
|
||||
</s4>
|
||||
<s4 title="Reading or modifying an existing file">
|
||||
|
|
@ -205,8 +242,7 @@ method (sheet.removeRow(hssfrow)) and create objects just as you
|
|||
would if creating a new xls. When you are done modifying cells just
|
||||
call workbook.write(outputstream) just as you did above.</p>
|
||||
<p>An example of this can be seen in
|
||||
org.apache.poi.hssf.dev.HSSF. See
|
||||
<link href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/poi/poi/production/src/net/sourceforge/poi/hssf/dev/HSSF.java?rev=HEAD&content-type=text/plain">http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/poi/poi/production/src/net/sourceforge/poi/hssf/dev/HSSF.java?rev=HEAD&content-type=text/plain</link>.</p>
|
||||
<link href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/poi/poi/production/src/net/sourceforge/poi/hssf/dev/HSSF.java?rev=HEAD&content-type=text/plain">org.apache.poi.hssf.dev.HSSF</link>.</p>
|
||||
</s4> </s3>
|
||||
<s3 title="Event API">
|
||||
|
||||
|
|
@ -246,77 +282,117 @@ registered to listen for until the file has been completely read.
|
|||
<p>A code excerpt from org.apache.poi.hssf.dev.EFHSSF (which is
|
||||
in CVS or the source distribution) is reprinted below with excessive
|
||||
comments:</p>
|
||||
<source>class EFHSSFListener implements HSSFListener { //this non-public class implements the required interface
|
||||
EFHSSF efhssf; // we construct it with a copy of its container class...this is cheap but effective
|
||||
public EFHSSFListener(EFHSSF efhssf) {
|
||||
<source>
|
||||
//this non-public class implements the required interface
|
||||
// we construct it with a copy of its container class...this is cheap but effective
|
||||
class EFHSSFListener implements HSSFListener {
|
||||
EFHSSF efhssf;
|
||||
public EFHSSFListener(EFHSSF efhssf) {
|
||||
this.efhssf = efhssf;
|
||||
}
|
||||
|
||||
public void processRecord(Record record) { // we just use this as an adapter so we pass the record to the method in the container class
|
||||
|
||||
// we just use this as an adapter so we pass the record to the method in the container class
|
||||
public void processRecord(Record record) {
|
||||
efhssf.recordHandler(record);
|
||||
}
|
||||
}
|
||||
|
||||
//here is an excerpt of the main line execution code from EFHSSF
|
||||
public void run() throws IOException {
|
||||
FileInputStream fin = new FileInputStream(infile); // create a new file input stream with the input file specified
|
||||
// at the command line
|
||||
Filesystem poifs = new Filesystem(fin); // create a new org.apache.poi.poifs.filesystem.Filesystem
|
||||
InputStream din = poifs.createDocumentInputStream("Workbook"); // get the Workbook (excel part) stream in a InputStream
|
||||
HSSFRequest req = new HSSFRequest(); // construct out HSSFRequest object
|
||||
req.addListenerForAllRecords(new EFHSSFListener(this)); // lazy listen for ALL records with the listener shown above
|
||||
HSSFEventFactory factory = new HSSFEventFactory(); // create our event factory
|
||||
factory.processEvents(req,din); // process our events based on the document input stream
|
||||
fin.close(); // once all the events are processed close our file input stream
|
||||
din.close(); // and our document input stream (don't want to leak these!)
|
||||
FileOutputStream fout = new FileOutputStream(outfile); // create a new output stream from filename specified at the command line
|
||||
workbook.write(fout); // write the HSSFWorkbook (class member) we created out to the file.
|
||||
fout.close(); // close our file output stream
|
||||
System.out.println("done."); // print done. Go enjoy your copy of the file.
|
||||
// create a new file input stream with the input file specified
|
||||
// at the command line
|
||||
FileInputStream fin = new FileInputStream(infile);
|
||||
// create a new org.apache.poi.poifs.filesystem.Filesystem
|
||||
Filesystem poifs = new Filesystem(fin);
|
||||
// get the Workbook (excel part) stream in a InputStream
|
||||
InputStream din = poifs.createDocumentInputStream("Workbook");
|
||||
// construct out HSSFRequest object
|
||||
HSSFRequest req = new HSSFRequest();
|
||||
// lazy listen for ALL records with the listener shown above
|
||||
req.addListenerForAllRecords(new EFHSSFListener(this));
|
||||
// create our event factory
|
||||
HSSFEventFactory factory = new HSSFEventFactory();
|
||||
// process our events based on the document input stream
|
||||
factory.processEvents(req,din);
|
||||
// once all the events are processed close our file input stream
|
||||
fin.close();
|
||||
// and our document input stream (don't want to leak these!)
|
||||
din.close();
|
||||
// create a new output stream from filename specified at the command line
|
||||
FileOutputStream fout = new FileOutputStream(outfile);
|
||||
// write the HSSFWorkbook (class member) we created out to the file.
|
||||
workbook.write(fout);
|
||||
// close our file output stream
|
||||
fout.close();
|
||||
// print done. Go enjoy your copy of the file.
|
||||
System.out.println("done.");
|
||||
}
|
||||
|
||||
|
||||
//here is an excerpt of the recordHander called from our listener.
|
||||
public void recordHandler(Record record) { // the record handler in the container class is intent on just rewriting the fire
|
||||
HSSFRow row = null;
|
||||
// the record handler in the container class is intent on just rewriting the file
|
||||
public void recordHandler(Record record) {
|
||||
HSSFRow row = null;
|
||||
HSSFCell cell = null;
|
||||
int sheetnum = -1;
|
||||
switch (record.getSid()) {
|
||||
case BOFRecord.sid: // the BOFRecord can represent either the beginning of a sheet or the workbook
|
||||
// the BOFRecord can represent either the beginning of a sheet or the workbook
|
||||
case BOFRecord.sid:
|
||||
BOFRecord bof = (BOFRecord) record;
|
||||
if (bof.getType() == bof.TYPE_WORKBOOK) {
|
||||
workbook = new HSSFWorkbook(); //if its the workbook then create a new HSSFWorkbook
|
||||
} else if (bof.getType() == bof.TYPE_WORKSHEET) { // assigned to the class level member
|
||||
//if its the workbook then create a new HSSFWorkbook
|
||||
workbook = new HSSFWorkbook();
|
||||
// assigned to the class level member
|
||||
} else if (bof.getType() == bof.TYPE_WORKSHEET) {
|
||||
sheetnum++;
|
||||
cursheet = workbook.getSheetAt(sheetnum); // otherwise if its a sheet increment the sheetnum index
|
||||
} // get the sheet at that index and assign it to method variable
|
||||
break; // cursheet (the sheet was created when the BoundSheetRecord record occurred
|
||||
case BoundSheetRecord.sid:
|
||||
BoundSheetRecord bsr = (BoundSheetRecord) record; // when we find a boundsheet record create a new sheet in the workbook and
|
||||
workbook.createSheet(bsr.getSheetname()); // assign it the name specified in this record.
|
||||
// otherwise if its a sheet increment the sheetnum index
|
||||
cursheet = workbook.getSheetAt(sheetnum);
|
||||
}
|
||||
break;
|
||||
case RowRecord.sid: // if this is a row record add the row to the current sheet
|
||||
// get the sheet at that index and assign it to method variable
|
||||
// cursheet (the sheet was created when the BoundSheetRecord record occurred
|
||||
case BoundSheetRecord.sid:
|
||||
// when we find a boundsheet record create a new sheet in the workbook and
|
||||
BoundSheetRecord bsr = (BoundSheetRecord) record;
|
||||
// assign it the name specified in this record.
|
||||
workbook.createSheet(bsr.getSheetname());
|
||||
break;
|
||||
// if this is a row record add the row to the current sheet
|
||||
case RowRecord.sid:
|
||||
RowRecord rowrec = (RowRecord) record;
|
||||
cursheet.createRow(rowrec.getRowNumber()); // assign our row the rownumber specified in the Row Record
|
||||
// assign our row the rownumber specified in the Row Record
|
||||
cursheet.createRow(rowrec.getRowNumber());
|
||||
break;
|
||||
case NumberRecord.sid: // if this is a NumberRecord (RKRecord, MulRKRecord get converted to Number
|
||||
NumberRecord numrec = (NumberRecord) record; // records) then get the row specified in the number record from the current
|
||||
row = cursheet.getRow(numrec.getRow()); // sheet. With this instance of HSSFRow create a new HSSFCell with the column
|
||||
cell = row.createCell(numrec.getColumn(),HSSFCell.CELL_TYPE_NUMERIC); //number specified in the record and assign it type NUMERIC
|
||||
cell.setCellValue(numrec.getValue()); // set the HSSFCell's value to the value stored in the NumberRecord
|
||||
// if this is a NumberRecord (RKRecord, MulRKRecord get converted to Number
|
||||
// records) then get the row specified in the number record from the current
|
||||
// sheet. With this instance of HSSFRow create a new HSSFCell with the column
|
||||
// number specified in the record and assign it type NUMERIC
|
||||
case NumberRecord.sid:
|
||||
NumberRecord numrec = (NumberRecord) record;
|
||||
row = cursheet.getRow(numrec.getRow());
|
||||
cell = row.createCell(numrec.getColumn(),HSSFCell.CELL_TYPE_NUMERIC);
|
||||
// set the HSSFCell's value to the value stored in the NumberRecord
|
||||
cell.setCellValue(numrec.getValue());
|
||||
break;
|
||||
case SSTRecord.sid: // if this is the SSTRecord (occurs once in the workbook) then add all of its
|
||||
SSTRecord sstrec = (SSTRecord) record; // strings to our workbook. We'll look them up later when we add LABELSST records.
|
||||
// if this is the SSTRecord (occurs once in the workbook) then add all of its
|
||||
// strings to our workbook. We'll look them up later when we add LABELSST records.
|
||||
case SSTRecord.sid:
|
||||
SSTRecord sstrec = (SSTRecord) record;
|
||||
for (int k = 0; k < sstrec.getNumUniqueStrings(); k++) {
|
||||
workbook.addSSTString(sstrec.getString(k));
|
||||
}
|
||||
break;
|
||||
case LabelSSTRecord.sid: // if this is a LabelSSTRecord then get the row specified in the LabelSSTRecord from
|
||||
LabelSSTRecord lrec = (LabelSSTRecord) record; // the current sheet. With this instance of HSSFRow create a new HSSFCell with the
|
||||
row = cursheet.getRow(lrec.getRow()); // column nubmer specified in the record and set the type to type STRING.
|
||||
// if this is a LabelSSTRecord then get the row specified in the LabelSSTRecord from
|
||||
// the current sheet. With this instance of HSSFRow create a new HSSFCell with the
|
||||
// column nubmer specified in the record and set the type to type STRING.
|
||||
case LabelSSTRecord.sid:
|
||||
LabelSSTRecord lrec = (LabelSSTRecord) record;
|
||||
row = cursheet.getRow(lrec.getRow());
|
||||
cell = row.createCell(lrec.getColumn(),HSSFCell.CELL_TYPE_STRING);
|
||||
cell.setCellValue(workbook.getSSTString(lrec.getSSTIndex())); //set the cells value to the string in our workbook object (added in the case
|
||||
break; //above) at the index specified by the LabelSSTRecord.
|
||||
//set the cells value to the string in our workbook object (added in the case
|
||||
//above) at the index specified by the LabelSSTRecord.
|
||||
cell.setCellValue(workbook.getSSTString(lrec.getSSTIndex()));
|
||||
break;
|
||||
}
|
||||
}</source>
|
||||
</s3>
|
||||
|
|
@ -356,7 +432,9 @@ export CLASSPATH=$CLASSPATH:$HSSFDIR/hssf.jar:$HSSFDIR/poi-poifs.jar:$HSSFDIR/po
|
|||
<ul>
|
||||
<li>Type:
|
||||
<code>java org.apache.poi.hssf.dev.HSSF ~/input.xls output.xls
|
||||
This is the read/write/modify test. It reads in the spreadsheet, modifies a cell, and writes it back out. Failing this test is not necessarily a bad thing. If HSSF tries to modify a non-existant sheet then this will most likely fail. No big deal. </code></li>
|
||||
This is the read/write/modify test. It reads in the spreadsheet, modifies a cell, and writes it back out.
|
||||
Failing this test is not necessarily a bad thing. If HSSF tries to modify a non-existant sheet then this will
|
||||
most likely fail. No big deal. </code></li>
|
||||
</ul>
|
||||
</s3>
|
||||
<s3 title="HSSF Logging facility">
|
||||
|
|
@ -375,7 +453,7 @@ you get no logging. If the log configuration dictates the logging be
|
|||
turned off, you get no logging.</p>
|
||||
<p>Here is an example hssflog.properties (actually its not an example
|
||||
its mine):
|
||||
<code># Set root category priority to DEBUG and its only appender to A1.
|
||||
<source># Set root category priority to DEBUG and its only appender to A1.
|
||||
log4j.rootCategory=DEBUG, A1
|
||||
|
||||
# A1 is set to be a ConsoleAppender.
|
||||
|
|
@ -386,7 +464,7 @@ log4j.appender.A1.layout=org.apache.log4j.PatternLayout
|
|||
log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
|
||||
#uncomment below to change the level to WARN to disable debugging information. This effectively turns off logging.
|
||||
#the default level is DEBUG (and changing it to DEBUG is the basically the same thing as leaving it commented out).
|
||||
#log4j.category.org.apache.poi=WARN</code></p>
|
||||
#log4j.category.org.apache.poi=WARN</source></p>
|
||||
|
||||
</s3>
|
||||
<s3 title="HSSF Developer's tools">
|
||||
|
|
|
|||
Loading…
Reference in New Issue