接口文档的支持

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

@@ -295,7 +295,7 @@ public class ExcelConsole<T extends Object> implements DbRow<T> {
             // 将当前組生成值密钥
             StringBuilder sb = new StringBuilder();
             for (String columnName : groupKvp.getValue()) {
-                String value = rowHandle.get(t, columnName);
+                String value = StringHelper.getFirst(rowHandle.get(t, columnName));
                 sb.append(value.replace(":", "::"));
                 sb.append(":");
             }