我创建了一个java来生成包含图片jpg的单元格的excel文件。 一张照片 只显示最后一行的最后一张图片
第二部分中我的java编码的一部分
你帮忙获得所有图片吗？
祝你好运
import java.net.URL;
import java.net.URLConnection;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.hssf.util.*;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
@SuppressWarnings("serial")
public class ExcelCaracAssocModelFileBatch extends AbstractBusinessBatch {
public int rowIdx = 0;
public int rowId1 = 0;
public short cellIdx = 0;
public short cellId2 = 15;
public String _item_codref = ""; /
private HSSFWorkbook wb = new HSSFWorkbook();
private HSSFSheet sheet1 = wb.createSheet("CONTEXT");
private HSSFRow hssfHeader;
private HSSFRow hssfHead2;
private HSSFSheet sheet = wb.createSheet("DATA");
private HSSFCellStyle cellStyle = wb.createCellStyle();
private HSSFCellStyle cellStyle2 = wb.createCellStyle();
public HSSFRow r2;
private HSSFPicture my_picture;
private HSSFCell Celldescarac;
private HSSFCell Cellcodcarac;
public ExcelCaracAssocModelFileBatch(ContexteMetier contexteMetier) {
super(contexteMetier);
}
}
@SuppressWarnings("deprecation")
public RowSetStateHolder select(ParameterAccess parameterAccess) throws CoreBatchException {
HSSFFont font1 = wb.createFont();
font1.setFontHeightInPoints((short)14);
font1.setFontName("Arial");
font1.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
cellStyle.setFillForegroundColor(HSSFColor.GREY_25_PERCENT.index);
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_MEDIUM);
cellStyle.setBorderRight(HSSFCellStyle.BORDER_MEDIUM);
cellStyle.setBorderTop(HSSFCellStyle.BORDER_MEDIUM);
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_MEDIUM);
cellStyle.setFont(font1);
cellStyle2.setAlignment(HSSFCellStyle.ALIGN_LEFT);
cellStyle2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
cellStyle2.setBorderLeft(HSSFCellStyle.BORDER_THIN);
cellStyle2.setBorderRight(HSSFCellStyle.BORDER_THIN);
cellStyle2.setBorderTop(HSSFCellStyle.BORDER_THIN);
cellStyle2.setBorderBottom(HSSFCellStyle.BORDER_THIN);
SqlBindingHelper sql = new SqlBindingHelper();
sql.appendSql("SELECT w_1, w_2, w_3, w_4, w_5, w_6, w_7, w_8, w_9, w_10,");
sql.appendSql("w_11, w_12, w_13, w_14, w_15, w_16, w_17, w_18, w_19, w_20,");
sql.appendSql("w_21, w_22, w_23, w_24, w_25, w_26, w_27, w_28, w_29, w_30,");
sql.appendSql("num01, num02");
sql.appendSql(" FROM PHX_GDT2_CARAS3 ");
sql.appendSql(" WHERE ");
sql.appendSql(" w_1 = ? "); sql.addParamValue(_w_1);
sql.addParamValue( _w_2 );
} */
return createRowSetStateHolderFromSql(sql);
}
public long execute(RowSetStateHolder rowSetStateHolder) throws CoreBatchException {
int cpt = 0;
Row row;
while(rowSetStateHolder.getRowSet().hasNext())
{
row = rowSetStateHolder.getRowSet().next();
String item_cod = (String)row.getAttribute("w_8");
rowIdx = rowId1++;
r2 = sheet.createRow(rowIdx);
r2.setHeight((short) 1800);
HSSFCell r2c0 = r2.createCell((short) 0);
r2c0.setCellValue((String)row.getAttribute("w_3"));
r2c0.setCellStyle(cellStyle2);
HSSFCell r2c1 = r2.createCell((short) 1);
r2c1.setCellValue((String)row.getAttribute("w_4"));
r2c1.setCellStyle(cellStyle2);
HSSFCell r2c2 = r2.createCell((short) 2);
r2c2.setCellValue((String)row.getAttribute("w_5"));
r2c2.setCellStyle(cellStyle2);
HSSFCell r2c3 = r2.createCell((short) 3);
r2c3.setCellValue((String)row.getAttribute("w_6"));
r2c3.setCellStyle(cellStyle2);
HSSFCell r2c4 = r2.createCell((short) 4);
r2c4.setCellValue((String) row.getAttribute("w_27"));
r2c4.setCellStyle(cellStyle2);
HSSFCell r2c5 = r2.createCell((short) 5);
r2c5.setCellValue((String)row.getAttribute("w_18"));
r2c5.setCellStyle(cellStyle2);
HSSFCell r2c6 = r2.createCell((short) 6);
r2c6.setCellValue((String)row.getAttribute("w_19"));
r2c6.setCellStyle(cellStyle2);
HSSFCell r2c7 = r2.createCell((short) 7);
r2c7.setCellValue((String)row.getAttribute("w_8"));
r2c7.setCellStyle(cellStyle2);
HSSFCell r2c8 = r2.createCell((short) 8);
r2c8.setCellValue((String) row.getAttribute("w_9"));
r2c8.setCellStyle(cellStyle2);
HSSFCell r2c9 = r2.createCell((short) 9);
r2c9.setCellValue((String) row.getAttribute("w_10"));
r2c9.setCellStyle(cellStyle2);
HSSFCell r2c10 = r2.createCell((short) 10);
r2c10.setCellValue((String) row.getAttribute("w_11"));
r2c10.setCellStyle(cellStyle2);
HSSFCell r2c11 = r2.createCell((short) 11);
r2c11.setCellValue((String) row.getAttribute("w_12"));
r2c11.setCellStyle(cellStyle2);
HSSFCell r2c12 = r2.createCell((short) 12);
r2c12.setCellValue((String) row.getAttribute("w_13"));
r2c12.setCellStyle(cellStyle2);
String urlmedia = (String) row.getAttribute("w_30");
try {
//test url image
URL url = new URL((String) row.getAttribute("w_30"));
URLConnection connection = url.openConnection();
int fileLength = connection.getContentLength();
// URL ok
if (fileLength != -1)
{
InputStream input = null;
input = connection.getInputStream();
//Get the contents of an InputStream as a byte[].
//byte[] bytes = IOUtils.toByteArray(input);
ByteArrayOutputStream img_bytes = new ByteArrayOutputStream();
int b;
while ((b = input.read()) != -1)
img_bytes.write(b);
input.close();
//Adds a picture to the workbook
//int pictureIdx = wb.addPicture(bytes, HSSFWorkbook.PICTURE_TYPE_JPEG);
int pictureIdx = wb.addPicture(img_bytes.toByteArray(), HSSFWorkbook.PICTURE_TYPE_JPEG);
//close the input stream
input.close();
/* Create the drawing container */
HSSFPatriarch drawing = sheet.createDrawingPatriarch();
/* Create an anchor point */
/*
dx1 - the x coordinate within the first cell.
dy1 - the y coordinate within the first cell.
dx2 - the x coordinate within the second cell.
dy2 - the y coordinate within the second cell.
col1 - the column (0 based) of the first cell.
row1 - the row (0 based) of the first cell.
col2 - the column (0 based) of the second cell.
row2 - the row (0 based) of the second cell.
*/
HSSFClientAnchor my_anchor = new HSSFClientAnchor();
my_anchor.setDx1(10);
my_anchor.setDx2(10);
my_anchor.setDy1(10);
my_anchor.setDy2(10);
short pictcol1 = (short) rowIdx;
short pictcol2 = (short) (pictcol1 + 1);
my_anchor.setCol1((short) 13);
my_anchor.setCol2((short) 14);
my_anchor.setRow1(pictcol1);
my_anchor.setRow2(pictcol2);
my_anchor.setAnchorType((int) 2);
setMy_picture(drawing.createPicture(my_anchor, pictureIdx));
}
}
catch (IOException e)
{
_log.info("Error while trying to download the file "+ urlmedia, e );
}
cellIdx = 14;
_item_codref = item_cod;
}
cellId2 = cellIdx++;
HSSFCell r2c4 = r2.createCell(cellId2);
r2c4.setCellValue((String)row.getAttribute("w_17"));
r2c4.setCellStyle(cellStyle2);
}
}
cpt++;
}
return cpt;
}
@Override
public synchronized void tearDown() throws CoreBatchException {
try
{
//Write the Excel file
String nomfic = FILE_NAME_PREFIX + "_" + getCtxMetier().getNumedi() + ".xls";
FileOutputStream fileOut = null;
fileOut = new FileOutputStream(nomfic);
wb.write(fileOut);
fileOut.close();
}
catch (Exception e)
{
_log.error(e);
throw new CoreBatchException(e);
}
finally
{
super.tearDown();
}
}
答案 0 :(得分：1)
createDrawingPatriarch method可以在Sheet上删除所有图纸，包括预先存在的图像。
请注意，这通常会删除此工作表上的所有现有图纸。
您在createDrawingPatriarch方法的while循环内调用了execute，因此您之前的图片会在每次迭代中被删除，只有最后一张图片存活。
要保持所有图像的完整性，请在while循环之前创建一次patriarch对象，并在while循环的每次迭代中重复使用它。
/* Create the drawing container */
HSSFPatriarch drawing = sheet.createDrawingPatriarch();
while(rowSetStateHolder.getRowSet().hasNext())
{
// Other code...
// Use it here as normal.
setMy_picture(drawing.createPicture(my_anchor, pictureIdx));
}