接口文档的支持

yzg-util-db/src/main/java/com/yanzuoguang/excel/ExcelConsole.java

@@ -67,6 +67,11 @@ public class ExcelConsole<T extends Object> implements DbRow<T> {
      */
     private Map<String, ExcelMergerData> mergerGroupData;
 
+    /**
+     * 最大字节长度
+     */
+    private Map<Integer, Integer> columnBytes;
+
     /**
      * 控制台输出Excel
      *
@@ -160,6 +165,7 @@ public class ExcelConsole<T extends Object> implements DbRow<T> {
         // 创建合并对象数据检测
         mergerGroup = new HashMap<>();
         mergerGroupData = new HashMap<>();
+        columnBytes = new HashMap<>();
 
         // 创建工作簿对象
         workbook = new XSSFWorkbook();
@@ -293,7 +299,11 @@ public class ExcelConsole<T extends Object> implements DbRow<T> {
         for (int columnPos = 0; columnPos < this.config.getColumns().size(); columnPos++) {
             ExportColumn column = this.config.getColumns().get(columnPos);
             String columnName = column.getName();
-            String value = rowHandle.get(t, columnName);
+            String value = StringHelper.getFirst(rowHandle.get(t, columnName));
+
+            // 获取字节数、用于设置最大宽度
+            int maxBytes = Math.max(columnBytes.getOrDefault(columnPos, 0), value.getBytes().length);
+            columnBytes.put(columnPos, maxBytes);
 
             // 当不需要合并历史记录时，则创建新的内容
             Cell cell = createCell(row, columnPos, value);
@@ -334,7 +344,6 @@ public class ExcelConsole<T extends Object> implements DbRow<T> {
         if (workbook == null) {
             return this;
         }
-
         // 合并数据配置
         for (int columnPos = 0; columnPos < this.config.getColumns().size(); columnPos++) {
             ExportColumn column = this.config.getColumns().get(columnPos);
@@ -348,7 +357,9 @@ public class ExcelConsole<T extends Object> implements DbRow<T> {
                 }
             }
             if (column.getWidth() < 1) {
-                sheet.autoSizeColumn(columnPos);
+                //设置单元格长度, 这里要乘上256
+                int maxBytes = columnBytes.get(columnPos);
+                sheet.setColumnWidth(columnPos, maxBytes * 256);
             } else {
                 sheet.setColumnWidth(columnPos, getUnit(column.getWidth()));
             }