Excel注解支持Image图片导入

ruoyi-common/src/main/java/com/ruoyi/common/config/RuoYiConfig.java

@@ -90,6 +90,14 @@ public class RuoYiConfig
         RuoYiConfig.addressEnabled = addressEnabled;
     }
 
+    /**
+     * 获取导入上传路径
+     */
+    public static String getImportPath()
+    {
+        return getProfile() + "/import";
+    }
+
     /**
      * 获取头像上传路径
      */

ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUploadUtils.java

@@ -127,7 +127,7 @@ public class FileUploadUtils
         return fileName;
     }
 
-    private static final File getAbsoluteFile(String uploadDir, String fileName) throws IOException
+    public static final File getAbsoluteFile(String uploadDir, String fileName) throws IOException
     {
         File desc = new File(uploadDir + File.separator + fileName);
 
@@ -141,7 +141,7 @@ public class FileUploadUtils
         return desc;
     }
 
-    private static final String getPathFileName(String uploadDir, String fileName) throws IOException
+    public static final String getPathFileName(String uploadDir, String fileName) throws IOException
     {
         int dirLastIndex = RuoYiConfig.getProfile().length() + 1;
         String currentDir = StringUtils.substring(uploadDir, dirLastIndex);

ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java

@@ -3,6 +3,7 @@ package com.ruoyi.common.utils.file;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.UnsupportedEncodingException;
@@ -10,8 +11,12 @@ import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.ArrayUtils;
+import com.ruoyi.common.config.RuoYiConfig;
+import com.ruoyi.common.utils.DateUtils;
 import com.ruoyi.common.utils.StringUtils;
+import com.ruoyi.common.utils.uuid.IdUtils;
 
 /**
  * 文件处理工具类
@@ -53,29 +58,48 @@ public class FileUtils
         }
         finally
         {
-            if (os != null)
-            {
-                try
-                {
-                    os.close();
-                }
-                catch (IOException e1)
-                {
-                    e1.printStackTrace();
-                }
-            }
-            if (fis != null)
-            {
-                try
-                {
-                    fis.close();
-                }
-                catch (IOException e1)
-                {
-                    e1.printStackTrace();
-                }
-            }
+            IOUtils.close(os);
+            IOUtils.close(fis);
+        }
+    }
+
+    /**
+     * 写数据到文件中
+     *
+     * @param data 数据
+     * @return 目标文件
+     * @throws IOException IO异常
+     */
+    public static String writeImportBytes(byte[] data) throws IOException
+    {
+        return writeBytes(data, RuoYiConfig.getImportPath());
+    }
+
+    /**
+     * 写数据到文件中
+     *
+     * @param data 数据
+     * @param uploadDir 目标文件
+     * @return 目标文件
+     * @throws IOException IO异常
+     */
+    public static String writeBytes(byte[] data, String uploadDir) throws IOException
+    {
+        FileOutputStream fos = null;
+        String pathName = "";
+        try
+        {
+            String extension = getFileExtendName(data);
+            pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
+            File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName);
+            fos = new FileOutputStream(file);
+            fos.write(data);
         }
+        finally
+        {
+            IOUtils.close(fos);
+        }
+        return FileUploadUtils.getPathFileName(uploadDir, pathName);
     }
 
     /**
@@ -200,4 +224,33 @@ public class FileUtils
         String encode = URLEncoder.encode(s, StandardCharsets.UTF_8.toString());
         return encode.replaceAll("\\+", "%20");
     }
+
+    /**
+     * 获取图像后缀
+     * 
+     * @param photoByte 图像数据
+     * @return 后缀名
+     */
+    public static String getFileExtendName(byte[] photoByte)
+    {
+        String strFileExtendName = "jpg";
+        if ((photoByte[0] == 71) && (photoByte[1] == 73) && (photoByte[2] == 70) && (photoByte[3] == 56)
+                && ((photoByte[4] == 55) || (photoByte[4] == 57)) && (photoByte[5] == 97))
+        {
+            strFileExtendName = "gif";
+        }
+        else if ((photoByte[6] == 74) && (photoByte[7] == 70) && (photoByte[8] == 73) && (photoByte[9] == 70))
+        {
+            strFileExtendName = "jpg";
+        }
+        else if ((photoByte[0] == 66) && (photoByte[1] == 77))
+        {
+            strFileExtendName = "bmp";
+        }
+        else if ((photoByte[1] == 80) && (photoByte[2] == 78) && (photoByte[3] == 71))
+        {
+            strFileExtendName = "png";
+        }
+        return strFileExtendName;
+    }
 }

ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java

@@ -19,6 +19,7 @@ import java.util.Set;
 import java.util.UUID;
 import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletResponse;
+import org.apache.poi.ooxml.POIXMLDocumentPart;
 import org.apache.poi.ss.usermodel.BorderStyle;
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.CellStyle;
@@ -33,6 +34,7 @@ import org.apache.poi.ss.usermodel.FillPatternType;
 import org.apache.poi.ss.usermodel.Font;
 import org.apache.poi.ss.usermodel.HorizontalAlignment;
 import org.apache.poi.ss.usermodel.IndexedColors;
+import org.apache.poi.ss.usermodel.PictureData;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.VerticalAlignment;
@@ -43,6 +45,12 @@ import org.apache.poi.util.IOUtils;
 import org.apache.poi.xssf.streaming.SXSSFWorkbook;
 import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
 import org.apache.poi.xssf.usermodel.XSSFDataValidation;
+import org.apache.poi.xssf.usermodel.XSSFDrawing;
+import org.apache.poi.xssf.usermodel.XSSFPicture;
+import org.apache.poi.xssf.usermodel.XSSFShape;
+import org.apache.poi.xssf.usermodel.XSSFSheet;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import com.ruoyi.common.annotation.Excel;
@@ -57,6 +65,7 @@ import com.ruoyi.common.utils.DateUtils;
 import com.ruoyi.common.utils.DictUtils;
 import com.ruoyi.common.utils.StringUtils;
 import com.ruoyi.common.utils.file.FileTypeUtils;
+import com.ruoyi.common.utils.file.FileUtils;
 import com.ruoyi.common.utils.file.ImageUtils;
 import com.ruoyi.common.utils.reflect.ReflectUtils;
 
@@ -176,7 +185,7 @@ public class ExcelUtil<T>
         {
             throw new IOException("文件sheet不存在");
         }
-
+        Map<String, PictureData> pictures = getSheetPictrues((XSSFSheet) sheet, (XSSFWorkbook) wb);
         // 获取最后一个非空行的行下标，比如总行数为n，则返回的为n-1
         int rows = sheet.getLastRowNum();
 
@@ -309,6 +318,20 @@ public class ExcelUtil<T>
                         {
                             val = reverseDictByExp(Convert.toStr(val), attr.dictType(), attr.separator());
                         }
+                        else if (ColumnType.IMAGE == attr.cellType())
+                        {
+                            if (StringUtils.isNull(pictures))
+                            {
+                                val = "";
+                            }
+                            PictureData image = pictures.get(row.getRowNum() + "_" + entry.getKey());
+                            if (image == null)
+                            {
+                                val = "";
+                            }
+                            byte[] data = image.getData();
+                            val = FileUtils.writeImportBytes(data);
+                        }
                         ReflectUtils.invokeSetter(entity, propertyName, val);
                     }
                 }
@@ -1154,4 +1177,36 @@ public class ExcelUtil<T>
         }
         return true;
     }
+
+    /**
+     * 获取Excel图片
+     *
+     * @param sheet 当前sheet对象
+     * @param workbook 工作簿对象
+     * @return Map key:图片单元格索引（1_1）String，value:图片流PictureData
+     */
+    public static Map<String, PictureData> getSheetPictrues(XSSFSheet sheet, XSSFWorkbook workbook)
+    {
+        Map<String, PictureData> sheetIndexPicMap = new HashMap<String, PictureData>();
+        for (POIXMLDocumentPart dr : sheet.getRelations())
+        {
+            if (dr instanceof XSSFDrawing)
+            {
+                XSSFDrawing drawing = (XSSFDrawing) dr;
+                List<XSSFShape> shapes = drawing.getShapes();
+                for (XSSFShape shape : shapes)
+                {
+                    if (shape instanceof XSSFPicture)
+                    {
+                        XSSFPicture pic = (XSSFPicture) shape;
+                        XSSFClientAnchor anchor = pic.getPreferredSize();
+                        CTMarker ctMarker = anchor.getFrom();
+                        String picIndex = ctMarker.getRow() + "_" + ctMarker.getCol();
+                        sheetIndexPicMap.put(picIndex, pic.getPictureData());
+                    }
+                }
+            }
+        }
+        return sheetIndexPicMap;
+    }
 }