修改图片导出是自适应图片宽高

whyclj

2019-06-29 dff1e7c324c627a971438b0e21d5f3f7dc1c3ea5

修改图片导出是自适应图片宽高

 sensor/src/com/fgkj/servlets/EchartPictureDowloadServlet.java

@@ -132,8 +132,9 @@
                InputStream buffin = new ByteArrayInputStream(b);

                src = ImageIO.read(buffin);

                int widthYuan = src.getWidth(); // 得到源图宽

                int heightYuan = src.getHeight(); // 得到源图长

                picPX[i] = (double)widthYuan/heightYuan;

                int heightYuan = src.getHeight(); // 得到源图高

                //System.out.println("width:"+widthYuan+"\theight:"+heightYuan+"\t单元格宽:"+swidth+"\t单元格高"+sheight);

                picPX[i] = (double)widthYuan/(heightYuan*4);

            } catch (IOException e) {

                e.printStackTrace();

            }

@@ -147,7 +148,8 @@
                sheet1.getRow(rownum).createCell(0).setCellValue(i>=picName.length?"":picName[i]);

                rownum++;

                

                HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 512, 255,(short) 0, rownum, (short) Math.ceil(10*picPX[i]), 25 + rownum-1);

						
                HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 512, 255,(short) 0, rownum, (short) Math.ceil(25*picPX[i]), 25 + rownum-1);

                anchor.setAnchorType(3);

                patriarch.createPicture(anchor,wb.addPicture(bytes.get(i),HSSFWorkbook.PICTURE_TYPE_PNG));

                rownum+=26;