导出优化

linwei

2026-01-27 04ca758eb14fa39e50aea551ad646980d5e604f8

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package org.sxkj.system.util.excel;
 
import com.alibaba.excel.write.style.row.AbstractRowHeightStyleStrategy;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
 
import java.util.Iterator;
 
/**
 * 自适应行高
 * @author zhongrj
 * @since 2021-10-29
 */
public class CustomCellWriteHeightConfig extends AbstractRowHeightStyleStrategy {
    /**
     * 默认高度
     */
    private static final Integer DEFAULT_HEIGHT = 300;
 
    @Override
    protected void setHeadColumnHeight(Row row, int relativeRowIndex) {
    }
 
    @Override
    protected void setContentColumnHeight(Row row, int relativeRowIndex) {
        Iterator<Cell> cellIterator = row.cellIterator();
        if (!cellIterator.hasNext()) {
            return;
        }
 
        // 默认为 1行高度
        Integer maxHeight = 1;
        while (cellIterator.hasNext()) {
            Cell cell = cellIterator.next();
            switch (cell.getCellType()) {
                case STRING:
                    if (cell.getStringCellValue().indexOf("\n") != -1) {
                        int length = cell.getStringCellValue().split("\n").length;
                        maxHeight = Math.max(maxHeight, length);
                    }
                    break;
                default:
                    break;
            }
        }
 
        row.setHeight((short) (maxHeight * DEFAULT_HEIGHT));
    }
}