excel 操作增加

src/com/platform/utils/excelUtils/ExcelOperation.java

@@ -0,0 +1,121 @@
+package com.platform.utils.excelUtils;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.util.List;
+
+import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFCellStyle;
+import org.apache.poi.hssf.usermodel.HSSFFont;
+import org.apache.poi.hssf.usermodel.HSSFRow;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.hssf.util.HSSFColor;
+import org.apache.poi.xssf.usermodel.XSSFCell;
+import org.apache.poi.xssf.usermodel.XSSFCellStyle;
+import org.apache.poi.xssf.usermodel.XSSFFactory;
+import org.apache.poi.xssf.usermodel.XSSFFont;
+import org.apache.poi.xssf.usermodel.XSSFRow;
+import org.apache.poi.xssf.usermodel.XSSFSheet;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.springframework.core.io.ClassPathResource;
+
+/**
+ * @author chen
+ * excel2007操作
+ */
+public class ExcelOperation {
+	
+	/** 读取excel模板
+	 * @param templateFilePath
+	 * @param list list中对象的属性顺序和模板的列顺序一一对应
+	 * @return HSSFWorkbook
+	 * @throws FileNotFoundException
+	 * @throws IOException
+	 * @throws IllegalAccessException 
+	 * @throws IllegalArgumentException 
+	 */
+	public static XSSFWorkbook readExcelTemplate(String templateFilePath, List list) throws FileNotFoundException, IOException, IllegalArgumentException, IllegalAccessException {
+		System.out.println(templateFilePath);
+//		InputStreamReader in= new InputStreamReader(Resource.class.getResourceAsStream(templateFilePath), "UTF-8");
+		ClassPathResource res = new ClassPathResource(templateFilePath);
+		XSSFWorkbook workbook = new XSSFWorkbook(res.getInputStream());//getAbsolutePath()
+		
+		
+		//从第几行 填充数据
+		int excelInitRow = 10;
+		 //读取工作表
+		XSSFSheet sheet = workbook.getSheetAt(0);//getSheet("Sheet1");
+	    XSSFRow row;
+		XSSFCell cell = null;
+		int size = list.size();
+		int lengths = 0;
+		XSSFCellStyle style = getStyle(workbook);
+		for (int i = 0; i < size; i++) {
+			row = sheet.createRow(excelInitRow);
+			Object obj = list.get(i);
+			Field[] fields = obj.getClass().getDeclaredFields();
+			lengths  = fields.length;
+			for (int j = 0; j < lengths; j++) {
+				fields[j].setAccessible(true);
+				cell = row.createCell((short) j,HSSFCellStyle.ALIGN_CENTER);
+			    cell.setCellType(HSSFCell.CELL_TYPE_STRING);
+			     Object value = fields[j].get(obj);
+			    if (null != value) {
+			    	cell.setCellValue(value.toString());
+				}
+			    else {
+			    	cell.setCellValue("");
+				}
+			    cell.setCellStyle(style);
+			}
+			//下一行
+			excelInitRow++;
+		}
+		for (int k = 0; k < lengths; k++) {
+			sheet.autoSizeColumn(k);
+		}
+		return workbook; 
+	}
+
+	private static XSSFCellStyle getStyle(XSSFWorkbook workbook) {
+//	     设置字体;
+		  XSSFFont font = workbook.createFont();
+		  //设置字体大小;
+		  font.setFontHeightInPoints((short)9);
+		  //设置字体名字;
+		  font.setFontName("Courier New");
+		  //font.setItalic(true);
+		  //font.setStrikeout(true);
+//		     设置样式;
+		  XSSFCellStyle style = workbook.createCellStyle();
+		  //设置底边框;
+		  style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
+		  //设置底边框颜色;
+		  style.setBottomBorderColor(HSSFColor.BLACK.index);
+		  //设置左边框;
+		  style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
+		  //设置左边框颜色;
+		  style.setLeftBorderColor(HSSFColor.BLACK.index);
+		  //设置右边框;
+		  style.setBorderRight(HSSFCellStyle.BORDER_THIN);
+		  //设置右边框颜色;
+		  style.setRightBorderColor(HSSFColor.BLACK.index);
+		  //设置顶边框;
+		  style.setBorderTop(HSSFCellStyle.BORDER_THIN);
+		  //设置顶边框颜色;
+		  style.setTopBorderColor(HSSFColor.BLACK.index);
+		  //在样式用应用设置的字体;
+		  style.setFont(font);
+		     //设置自动换行;
+		  style.setWrapText(false);
+		  //设置水平对齐的样式为居中对齐;
+		  style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
+		  //设置垂直对齐的样式为居中对齐;
+		  style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
+		  return style;
+	}
+
+}