'commit'

src/main/java/UnitTest/ImportExcel/AddComment.java

@@ -2,6 +2,7 @@ package UnitTest.ImportExcel;
 
 import com.dsideal.QingLong.Util.PoiUtil;
 import org.apache.poi.ss.usermodel.*;
+import org.apache.poi.xssf.usermodel.XSSFCell;
 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 
 import java.io.FileInputStream;
@@ -11,21 +12,20 @@ import java.io.IOException;
 public class AddComment {
     //工作目录
     public static String path = "D:\\dsWork\\QingLong\\src\\main\\resource\\Excel\\";
+
     public static void main(String[] args) throws Exception {
         //学校上传的Excel
         String source = path + "1.xlsx";
         //要进行标注的行和列
         int r = 5, c = 6;//第6行第7列
-        //字号
-        int fontSize = 12;
-        //标识的颜色，比如黄色、白色
-        short colorIdx = IndexedColors.YELLOW.getIndex();
 
         //对文件进行校验，标注
         try (FileInputStream fileIn = new FileInputStream(source);
              Workbook workbook = new XSSFWorkbook(fileIn)) {
             //在指定单元格上添加背景黄色+标注提示信息
-            PoiUtil.addComment(workbook, 0, r, c, fontSize, colorIdx, "此单元格应该是非空的！");
+            Cell cell = workbook.getSheetAt(0).getRow(r).getCell(c);
+
+            PoiUtil.addComment(workbook,  cell,  "此单元格应该是非空的！");
             // 保存
             FileOutputStream fileOut = new FileOutputStream(source);
             workbook.write(fileOut);

src/main/java/UnitTest/ImportExcel/TestDiffrentColor.java

@@ -0,0 +1,32 @@
+package UnitTest.ImportExcel;
+
+import com.dsideal.QingLong.Util.PoiUtil;
+import org.apache.poi.ss.usermodel.IndexedColors;
+import org.apache.poi.xssf.usermodel.*;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+public class TestDiffrentColor {
+
+
+    public static void main(String[] args) throws IOException {
+        XSSFWorkbook wb = new XSSFWorkbook();
+        XSSFSheet sheet = wb.createSheet("RichTextStringExample");
+
+        XSSFRow row = sheet.createRow(0);//行号
+        XSSFCell cell = row.createCell(0);//单元格
+        cell.setCellValue("我是原来的内容");
+
+        //添加重点提示符*和Comment
+        PoiUtil.addStar(wb, cell);
+        //添加Comment
+        PoiUtil.addComment(wb, cell, "此单元格内容必须输入！");
+
+        //输出
+        FileOutputStream fileOut = new FileOutputStream("c:\\workbook.xlsx");
+        wb.write(fileOut);
+        fileOut.close();
+        wb.close();
+    }
+}

src/main/java/com/dsideal/QingLong/Util/PoiUtil.java

@@ -2,24 +2,47 @@ package com.dsideal.QingLong.Util;
 
 import org.apache.poi.ss.usermodel.*;
 import org.apache.poi.ss.util.CellRangeAddressList;
+import org.apache.poi.xssf.usermodel.XSSFCell;
+import org.apache.poi.xssf.usermodel.XSSFFont;
+import org.apache.poi.xssf.usermodel.XSSFRichTextString;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 
 public class PoiUtil {
     /**
-     * 功能：修改指定单元格的样式
+     * 功能：对于指定Cell中文字进行加红色(*)提醒
      *
      * @param wb
-     * @param sheetIndex
-     * @param r
-     * @param c
-     * @param fontSize
-     * @param colorIdx
-     * @return
+     * @param cell
      */
-    public static void addComment(Workbook wb, int sheetIndex, int r, int c,
-                                  int fontSize, short colorIdx, String str) {
-        Sheet sheet = wb.getSheetAt(sheetIndex);
-        Row row = sheet.getRow(r);
-        Cell cell = row.getCell(c);
+    public static void addStar(XSSFWorkbook wb, XSSFCell cell) {
+        XSSFFont fontRed = wb.createFont();//第一种字体
+        fontRed.setBold(true);
+        fontRed.setColor(IndexedColors.RED.getIndex());
+        fontRed.setFontHeightInPoints((short) 14);
+        fontRed.setFontName("黑体");
+
+        XSSFFont fontBlack = wb.createFont();//第二种字体
+        fontBlack.setColor(IndexedColors.BLACK.getIndex());
+        fontBlack.setFontName("宋体");
+        fontRed.setBold(true);
+        fontBlack.setFontHeightInPoints((short) 12);
+        String txt = cell.getStringCellValue();
+
+        int len = txt.length();
+        txt += "(*)";
+        XSSFRichTextString richText = new XSSFRichTextString(txt);//全部文字
+        richText.applyFont(0, len - 1, fontBlack); // 从第0个字符到第2个字符应用font1
+        richText.applyFont(len, len + 3, fontRed); // 从第2个字符到第4个字符应用font2
+        cell.setCellValue(richText);//设置文字
+    }
+
+    /**
+     * 功能：给指定单元格加边框
+     *
+     * @param wb
+     * @param cell
+     */
+    public static void addBorder(Workbook wb, Cell cell, short colorIdx) {
         // 创建单元格样式
         CellStyle style = wb.createCellStyle();
         style.setAlignment(HorizontalAlignment.CENTER);
@@ -32,14 +55,25 @@ public class PoiUtil {
         Font font = wb.createFont();
         font.setFontName("宋体");//字体
         font.setBold(true);//加粗
-        font.setFontHeightInPoints((short) fontSize);//字号
+        font.setFontHeightInPoints((short) 12);//字号
         style.setFont(font);
         // 设置背景颜色
+        //short colorIdx = IndexedColors.YELLOW.getIndex();
         style.setFillForegroundColor(colorIdx);
         style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
         // 应用样式到单元格
         cell.setCellStyle(style);
+    }
 
+    /**
+     * 功能：修改指定单元格的样式
+     *
+     * @param wb
+     * @return
+     */
+    public static void addComment(Workbook wb,  Cell cell,
+                                  String str) {
+        Sheet sheet = cell.getSheet();
         // 判断单元格上是否存在批注
         if (cell.getCellComment() != null) {
             // 如果存在批注，先删除
@@ -50,9 +84,9 @@ public class PoiUtil {
         CreationHelper factory = wb.getCreationHelper();
         ClientAnchor anchor = factory.createClientAnchor();
         anchor.setCol1(cell.getColumnIndex());
-        anchor.setCol2(cell.getColumnIndex() + 1);
-        anchor.setRow1(row.getRowNum());
-        anchor.setRow2(row.getRowNum() + 3);
+        anchor.setCol2(cell.getColumnIndex() + 2);
+        anchor.setRow1(cell.getRow().getRowNum());
+        anchor.setRow2(cell.getRow().getRowNum() + 3);
         Comment comment = drawing.createCellComment(anchor);
         comment.setString(factory.createRichTextString(str));
         // 将批注添加到单元格