gts

hutool-poi/src/test/java/cn/hutool/poi/excel/Issue3965Test.java

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+package cn.hutool.poi.excel;
+
+import cn.hutool.core.collection.ListUtil;
+import cn.hutool.core.io.FileUtil;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Issue3965Test {
+	@Test
+	@Disabled
+	void writeTest() {
+		ArrayList<List<String>> arrayList = new ArrayList<>();
+
+		arrayList.add(ListUtil.of("a"));
+		arrayList.add(ListUtil.of("b"));
+		arrayList.add(ListUtil.of("c"));
+		arrayList.add(ListUtil.of("d"));
+
+		ExcelWriter writer = ExcelUtil.getWriter(FileUtil.file("d:/test/123.xlsx"));
+		writer.setColumnWidth(0, 50);
+		writer.write(arrayList);
+		writer.flush();
+		writer.close();
+	}
+}