修改宽度策略

src/main/java/com/alibaba/excel/write/metadata/holder/AbstractWriteHolder.java

@@ -8,9 +8,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.TreeMap;
 
-import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.IndexedColors;
-import org.apache.poi.ss.usermodel.Sheet;
 
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.converters.ConverterKeyBuild;
@@ -37,7 +35,6 @@ import com.alibaba.excel.write.metadata.style.WriteCellStyle;
 import com.alibaba.excel.write.metadata.style.WriteFont;
 import com.alibaba.excel.write.property.ExcelWriteHeadProperty;
 import com.alibaba.excel.write.style.RowCellStyleStrategy;
-import com.alibaba.excel.write.style.column.AbstractColumnWidthStyleStrategy;
 import com.alibaba.excel.write.style.column.AbstractHeadColumnWidthStyleStrategy;
 import com.alibaba.excel.write.style.row.SimpleRowHeightStyleStrategy;
 
@@ -248,15 +245,16 @@ public abstract class AbstractWriteHolder extends AbstractHolder implements Writ
     }
 
     private void dealColumnWidth(List<WriteHandler> handlerList) {
-        WriteHandler columnWidthStyleStrategy = new AbstractColumnWidthStyleStrategy() {
+        WriteHandler columnWidthStyleStrategy = new AbstractHeadColumnWidthStyleStrategy() {
             @Override
-            protected void setColumnWidth(Sheet sheet, Cell cell, Head head) {
+            protected Integer columnWidth(Head head) {
                 if (head == null) {
-                    return;
+                    return null;
                 }
                 if (head.getColumnWidthProperty() != null) {
-                    sheet.setColumnWidth(head.getColumnIndex(), head.getColumnWidthProperty().getWidth());
+                    return head.getColumnWidthProperty().getWidth();
                 }
+                return null;
             }
         };
         handlerList.add(columnWidthStyleStrategy);

src/main/java/com/alibaba/excel/write/style/column/AbstractColumnWidthStyleStrategy.java

@@ -32,10 +32,7 @@ public abstract class AbstractColumnWidthStyleStrategy implements CellWriteHandl
     @Override
     public void afterCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Cell cell,
         Head head, int relativeRowIndex, boolean isHead) {
-        if (!isHead && relativeRowIndex != 0) {
-            return;
-        }
-        setColumnWidth(writeSheetHolder.getSheet(), cell, head);
+        setColumnWidth(writeSheetHolder.getSheet(), cell, head, relativeRowIndex, isHead);
     }
 
     /**
@@ -44,7 +41,10 @@ public abstract class AbstractColumnWidthStyleStrategy implements CellWriteHandl
      * @param sheet
      * @param cell
      * @param head
+     * @param relativeRowIndex
+     * @param isHead
      */
-    protected abstract void setColumnWidth(Sheet sheet, Cell cell, @Nullable Head head);
+    protected abstract void setColumnWidth(Sheet sheet, Cell cell, @Nullable Head head, int relativeRowIndex,
+        boolean isHead);
 
 }

src/main/java/com/alibaba/excel/write/style/column/AbstractHeadColumnWidthStyleStrategy.java

@@ -8,12 +8,15 @@ import com.sun.istack.internal.Nullable;
 
 /**
  * Returns the column width according to each column header
- * 
+ *
  * @author zhuangjiaju
  */
 public abstract class AbstractHeadColumnWidthStyleStrategy extends AbstractColumnWidthStyleStrategy {
     @Override
-    protected void setColumnWidth(Sheet sheet, Cell cell, Head head) {
+    protected void setColumnWidth(Sheet sheet, Cell cell, Head head, int relativeRowIndex, boolean isHead) {
+        if (!isHead && relativeRowIndex != 0) {
+            return;
+        }
         Integer width = columnWidth(head);
         if (width != null) {
             sheet.setColumnWidth(cell.getColumnIndex(), columnWidth(head));
@@ -22,9 +25,9 @@ public abstract class AbstractHeadColumnWidthStyleStrategy extends AbstractColum
 
     /**
      * Returns the column width corresponding to each column head.
-     * 
+     *
      * <li>if return null,ignore
-     * 
+     *
      * @param head
      * @return the width in units of 1/256th of a character width . Using the Calibri font as an example, the maximum
      *         digit width of 11 point font size is 7 pixels (at 96 dpi). If you set a column width to be eight

src/main/java/com/alibaba/excel/write/style/column/SimpleColumnWidthStyleStrategy.java

 package com.alibaba.excel.write.style.column;
 
-import org.apache.poi.ss.usermodel.Cell;
-import org.apache.poi.ss.usermodel.Sheet;
-
 import com.alibaba.excel.metadata.Head;
 
 /**
  * All the columns are the same width
- * 
+ *
  * @author zhuangjiaju
  */
-public class SimpleColumnWidthStyleStrategy extends AbstractColumnWidthStyleStrategy {
+public class SimpleColumnWidthStyleStrategy extends AbstractHeadColumnWidthStyleStrategy {
     private Integer columnWidth;
 
     /**
      * Using the Calibri font as an example, the maximum digit width of 11 point font size is 7 pixels (at 96 dpi). * If
      * you set a column width to be eight characters wide, e.g. <code>SimpleColumnWidthStyleStrategy( 8*256)</code>,
-     * 
+     *
      * @param columnWidth
      *            the width in units of 1/256th of a character width
      */
@@ -25,9 +22,7 @@ public class SimpleColumnWidthStyleStrategy extends AbstractColumnWidthStyleStra
     }
 
     @Override
-    protected void setColumnWidth(Sheet sheet, Cell cell, Head head) {
-        if (columnWidth != null) {
-            sheet.setColumnWidth(cell.getColumnIndex(), columnWidth);
-        }
+    protected Integer columnWidth(Head head) {
+        return columnWidth;
     }
 }