From ea1014ff8f34c2783eeff8f474734ead840930c0 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期一, 09 五月 2022 17:37:12 +0800
Subject: [PATCH] 优化excel创建表格样式

---
 src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java |  114 ++++++++++++++++++++++++++++----------------------------
 1 files changed, 57 insertions(+), 57 deletions(-)

diff --git a/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java b/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
index 4712534..d3e02dd 100644
--- a/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
+++ b/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
@@ -22,6 +22,7 @@
 import java.util.UUID;
 import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletResponse;
+import org.apache.commons.lang3.RegExUtils;
 import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
 import org.apache.poi.hssf.usermodel.HSSFPicture;
 import org.apache.poi.hssf.usermodel.HSSFPictureData;
@@ -87,6 +88,8 @@
 public class ExcelUtil<T>
 {
     private static final Logger log = LoggerFactory.getLogger(ExcelUtil.class);
+
+    public static final String FORMULA_REGEX_STR = "=|-|\\+|@";
 
     public static final String[] FORMULA_STR = { "=", "-", "+", "@" };
 
@@ -669,21 +672,46 @@
         style.setFont(totalFont);
         styles.put("total", style);
 
-        style = wb.createCellStyle();
-        style.cloneStyleFrom(styles.get("data"));
-        style.setAlignment(HorizontalAlignment.LEFT);
-        styles.put("data1", style);
+        styles.putAll(annotationStyles(wb));
 
-        style = wb.createCellStyle();
-        style.cloneStyleFrom(styles.get("data"));
-        style.setAlignment(HorizontalAlignment.CENTER);
-        styles.put("data2", style);
+        return styles;
+    }
 
-        style = wb.createCellStyle();
-        style.cloneStyleFrom(styles.get("data"));
-        style.setAlignment(HorizontalAlignment.RIGHT);
-        styles.put("data3", style);
-
+    /**
+     * 鏍规嵁Excel娉ㄨВ鍒涘缓琛ㄦ牸鏍峰紡
+     * 
+     * @param wb 宸ヤ綔钖勫璞�
+     * @return 鑷畾涔夋牱寮忓垪琛�
+     */
+    private Map<String, CellStyle> annotationStyles(Workbook wb)
+    {
+        Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
+        for (Object[] os : fields)
+        {
+            Excel excel = (Excel) os[1];
+            String key = "data_" + excel.align() + "_" + excel.color();
+            if (!styles.containsKey(key))
+            {
+                CellStyle style = wb.createCellStyle();
+                style = wb.createCellStyle();
+                style.setAlignment(excel.align());
+                style.setVerticalAlignment(VerticalAlignment.CENTER);
+                style.setBorderRight(BorderStyle.THIN);
+                style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
+                style.setBorderLeft(BorderStyle.THIN);
+                style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
+                style.setBorderTop(BorderStyle.THIN);
+                style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
+                style.setBorderBottom(BorderStyle.THIN);
+                style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
+                Font dataFont = wb.createFont();
+                dataFont.setFontName("Arial");
+                dataFont.setFontHeightInPoints((short) 10);
+                dataFont.setColor(excel.color().index);
+                style.setFont(dataFont);
+                styles.put(key, style);
+            }
+        }
         return styles;
     }
 
@@ -714,9 +742,9 @@
         {
             String cellValue = Convert.toStr(value);
             // 瀵逛簬浠讳綍浠ヨ〃杈惧紡瑙﹀彂瀛楃 =-+@寮�澶寸殑鍗曞厓鏍硷紝鐩存帴浣跨敤tab瀛楃浣滀负鍓嶇紑锛岄槻姝SV娉ㄥ叆銆�
-            if (StringUtils.containsAny(cellValue, FORMULA_STR))
+            if (StringUtils.startsWithAny(cellValue, FORMULA_STR))
             {
-                cellValue = StringUtils.replaceEach(cellValue, FORMULA_STR, new String[] { "\t=", "\t-", "\t+", "\t@" });
+                cellValue = RegExUtils.replaceFirst(cellValue, FORMULA_REGEX_STR, "\t$0");
             }
             cell.setCellValue(StringUtils.isNull(cellValue) ? attr.defaultValue() : cellValue + attr.suffix());
         }
@@ -783,17 +811,10 @@
             // 璁剧疆鍒楀
             sheet.setColumnWidth(column, (int) ((attr.width() + 0.72) * 256));
         }
-        // 濡傛灉璁剧疆浜嗘彁绀轰俊鎭垯榧犳爣鏀句笂鍘绘彁绀�.
-        if (StringUtils.isNotEmpty(attr.prompt()))
+        if (StringUtils.isNotEmpty(attr.prompt()) || attr.combo().length > 0)
         {
-            // 杩欓噷榛樿璁句簡2-101鍒楁彁绀�.
-            setXSSFPrompt(sheet, "", attr.prompt(), 1, 100, column, column);
-        }
-        // 濡傛灉璁剧疆浜哻ombo灞炴�у垯鏈垪鍙兘閫夋嫨涓嶈兘杈撳叆
-        if (attr.combo().length > 0)
-        {
-            // 杩欓噷榛樿璁句簡2-101鍒楀彧鑳介�夋嫨涓嶈兘杈撳叆.
-            setXSSFValidation(sheet, attr.combo(), 1, 100, column, column);
+            // 鎻愮ず淇℃伅鎴栧彧鑳介�夋嫨涓嶈兘杈撳叆鐨勫垪鍐呭.
+            setPromptOrValidation(sheet, attr.combo(), attr.prompt(), 1, 100, column, column);
         }
     }
 
@@ -812,8 +833,7 @@
             {
                 // 鍒涘缓cell
                 cell = row.createCell(column);
-                int align = attr.align().value();
-                cell.setCellStyle(styles.get("data" + (align >= 1 && align <= 3 ? align : "")));
+                cell.setCellStyle(styles.get("data_" + attr.align() + "_" + attr.color()));
 
                 // 鐢ㄤ簬璇诲彇瀵硅薄涓殑灞炴��
                 Object value = getTargetValue(vo, field, attr);
@@ -857,48 +877,29 @@
     }
 
     /**
-     * 璁剧疆 POI XSSFSheet 鍗曞厓鏍兼彁绀�
+     * 璁剧疆 POI XSSFSheet 鍗曞厓鏍兼彁绀烘垨閫夋嫨妗�
      * 
      * @param sheet 琛ㄥ崟
-     * @param promptTitle 鎻愮ず鏍囬
+     * @param textlist 涓嬫媺妗嗘樉绀虹殑鍐呭
      * @param promptContent 鎻愮ず鍐呭
      * @param firstRow 寮�濮嬭
      * @param endRow 缁撴潫琛�
      * @param firstCol 寮�濮嬪垪
      * @param endCol 缁撴潫鍒�
      */
-    public void setXSSFPrompt(Sheet sheet, String promptTitle, String promptContent, int firstRow, int endRow,
+    public void setPromptOrValidation(Sheet sheet, String[] textlist, String promptContent, int firstRow, int endRow,
             int firstCol, int endCol)
     {
         DataValidationHelper helper = sheet.getDataValidationHelper();
-        DataValidationConstraint constraint = helper.createCustomConstraint("DD1");
+        DataValidationConstraint constraint = textlist.length > 0 ? helper.createExplicitListConstraint(textlist) : helper.createCustomConstraint("DD1");
         CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
         DataValidation dataValidation = helper.createValidation(constraint, regions);
-        dataValidation.createPromptBox(promptTitle, promptContent);
-        dataValidation.setShowPromptBox(true);
-        sheet.addValidationData(dataValidation);
-    }
-
-    /**
-     * 璁剧疆鏌愪簺鍒楃殑鍊煎彧鑳借緭鍏ラ鍒剁殑鏁版嵁,鏄剧ず涓嬫媺妗�.
-     * 
-     * @param sheet 瑕佽缃殑sheet.
-     * @param textlist 涓嬫媺妗嗘樉绀虹殑鍐呭
-     * @param firstRow 寮�濮嬭
-     * @param endRow 缁撴潫琛�
-     * @param firstCol 寮�濮嬪垪
-     * @param endCol 缁撴潫鍒�
-     * @return 璁剧疆濂界殑sheet.
-     */
-    public void setXSSFValidation(Sheet sheet, String[] textlist, int firstRow, int endRow, int firstCol, int endCol)
-    {
-        DataValidationHelper helper = sheet.getDataValidationHelper();
-        // 鍔犺浇涓嬫媺鍒楄〃鍐呭
-        DataValidationConstraint constraint = helper.createExplicitListConstraint(textlist);
-        // 璁剧疆鏁版嵁鏈夋晥鎬у姞杞藉湪鍝釜鍗曞厓鏍间笂,鍥涗釜鍙傛暟鍒嗗埆鏄細璧峰琛屻�佺粓姝㈣銆佽捣濮嬪垪銆佺粓姝㈠垪
-        CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
-        // 鏁版嵁鏈夋晥鎬у璞�
-        DataValidation dataValidation = helper.createValidation(constraint, regions);
+        if (StringUtils.isNotEmpty(promptContent))
+        {
+            // 濡傛灉璁剧疆浜嗘彁绀轰俊鎭垯榧犳爣鏀句笂鍘绘彁绀�
+            dataValidation.createPromptBox("", promptContent);
+            dataValidation.setShowPromptBox(true);
+        }
         // 澶勭悊Excel鍏煎鎬ч棶棰�
         if (dataValidation instanceof XSSFDataValidation)
         {
@@ -909,7 +910,6 @@
         {
             dataValidation.setSuppressDropDownArrow(false);
         }
-
         sheet.addValidationData(dataValidation);
     }
 

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