bugfix-1662

src/main/java/com/alibaba/excel/write/property/ExcelWriteHeadProperty.java

@@ -158,7 +158,9 @@ public class ExcelWriteHeadProperty extends ExcelHeadProperty {
                 int lastCol = i;
                 int lastRow = j;
                 for (int k = i + 1; k < headList.size(); k++) {
-                    if (headList.get(k).getHeadNameList().get(j).equals(headName)) {
+                    if (headList.get(k).getHeadNameList().get(j).equals(headName)
+                        && (j - 1 >= 0)
+                        && !headList.get(k).getHeadNameList().get(j-1).equals(headName)) {
                         alreadyRangeSet.add(k + "-" + j);
                         lastCol = k;
                     } else {

src/test/java/com/alibaba/easyexcel/test/temp/issue1662/Data1662.java

@@ -0,0 +1,20 @@
+package com.alibaba.easyexcel.test.temp.issue1662;
+
+import com.alibaba.excel.annotation.ExcelProperty;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.Date;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class Data1662 {
+    @ExcelProperty(index = 0)
+    private String str;
+    @ExcelProperty(index = 1)
+    private Date date;
+    @ExcelProperty(index = 2)
+    private double r;
+}

src/test/java/com/alibaba/easyexcel/test/temp/issue1662/Issue1662Test.java

@@ -0,0 +1,42 @@
+package com.alibaba.easyexcel.test.temp.issue1662;
+
+import com.alibaba.easyexcel.test.util.TestFileUtil;
+import com.alibaba.excel.EasyExcel;
+import org.junit.Test;
+
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+public class Issue1662Test {
+    @Test
+    public void test1662() {
+        String fileName = TestFileUtil.getPath() + "Test1939" + ".xlsx";
+        System.out.println(fileName);
+        EasyExcel.write(fileName).head(head()).sheet("模板").doWrite(dataList());
+    }
+
+
+    private List<List<String>> head() {
+        List<List<String>> list = new ArrayList<>();
+        List<String> head0 = new ArrayList<>();
+        List<String> head1 = new ArrayList<>();
+        head0.add("xx");
+        head0.add("日期");
+        list.add(head0);
+        head1.add("日期");
+        list.add(head1);
+        return list;
+    }
+
+    private List<List<Object>> dataList() {
+        List<List<Object>> list = new ArrayList<>();
+        List<Object> data = new ArrayList<>();
+        data.add("字符串");
+        data.add(new Date());
+        data.add(0.56);
+        list.add(data);
+        return list;
+    }
+}