使用jxls自定义命令设置动态行高

<dependency>
    <groupId>org.jxls</groupId>
    <artifactId>jxls</artifactId>
    <version>2.4.5</version>
</dependency>
<dependency>
    <!-- 可以使用poi的实现也可以用jexcelapi的 -->
    <groupId>org.jxls</groupId>
    <artifactId>jxls-poi</artifactId>
    <version>1.0.15</version>
</dependency>
<dependency>
    <groupId>org.jxls</groupId>
    <artifactId>jxls-jexcel</artifactId>
    <version>1.0.7</version>
</dependency>
<dependency>
    <groupId>net.sf.jxls</groupId>
    <artifactId>jxls-core</artifactId>
    <version>1.0.6</version>
</dependency>

Administrator:
jx:area(lastCell=”H3”)

Administrator:
jx:each(items=“bDatas” var=“vo” lastCell=“H3” varIndex=“ojbIndex” )

import cn.xj.test.UserPo;
import com.google.common.collect.Lists;
import org.jxls.builder.xls.XlsCommentAreaBuilder;
import org.jxls.common.Context;
import org.jxls.util.JxlsHelper;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import java.io.*;
import java.util.*;

public class Test1 {

    public static void main(String[] args) throws IOException {
        Context context = new Context();
        // 数据集合
        List<UserPo> dataList = Lists.newArrayList();
        for (int i = 0; i < 10; i++) {
            UserPo userPo = new UserPo();
            userPo.setNum("1_"+i);
            userPo.setName("xj_"+i);
            userPo.setAge(i+1);
            userPo.setMail("专注写bug测试中文11111");
            dataList.add(userPo);
        }
        // ${item.num}
        context.putVar("bDatas",dataList);

		// 模板文件再resources 目录下
        Resource resource = new ClassPathResource("/report/test_user1.xlsx");
        InputStream is = resource.getInputStream();

        String outFile = System.getProperty("user.dir")+ File.separator+"springboot-poi"+File.separator+"pdf"+File.separator+System.currentTimeMillis()+ ".xlsx";
        OutputStream outputStream = new FileOutputStream(outFile);

        JxlsHelper jxlsHelper = JxlsHelper.getInstance();
        jxlsHelper.getAreaBuilder().getTransformer();
        jxlsHelper.processTemplate(is, outputStream, context);
		
		// JxlsHelper.getInstance().processTemplate(is, outputStream, context);
    }
}

import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.jxls.area.Area;
import org.jxls.command.AbstractCommand;
import org.jxls.common.CellRef;
import org.jxls.common.Context;
import org.jxls.common.Size;
import org.jxls.transform.poi.PoiTransformer;

/**
 * 自定义列高指令
 * 如：
 * jx:autoRowHeight(lastCell ="C3")
 *
 * 还需要在对应的主程序中调用
 */
public class AutoRowHeightCommand extends AbstractCommand {

    /**
     * 批注中的自定义指令
     * @return
     */
    @Override
    public String getName() {
        return "autoRowHeight";
    }

    /**
     * 列高逻辑
     * @param cellRef
     * @param context
     * @return
     */
    @Override
    public Size applyAt(CellRef cellRef, Context context) {
        Area area=getAreaList().get(0);
        Size size = area.applyAt(cellRef, context);

        PoiTransformer transformer = (PoiTransformer) area.getTransformer();

        Sheet sheet = transformer.getWorkbook().getSheet(cellRef.getSheetName());
//        List bDatas = (List) context.getVar("bDatas");
//        int firstDefaultCol = cellRef.getCol(); // 最开始的第一列
//        if(!CollectionUtils.isEmpty(bDatas)){
//            for (int i = 0; i < bDatas.size(); i++) {
//                // 计算中文、字符的长度  设定列宽
//                Object data = bDatas.get(i);
//                if(!StringUtils.isEmpty(data) && (data.getBytes().length+4)>sheet.getColumnWidth(i)){
//                    sheet.setColumnWidth(i+firstDefaultCol,data.getBytes().length+4);
//                }else{
//                    sheet.setColumnWidth(i+firstDefaultCol,30); // 默认
//                }
//
//            }
//        }
        //sheet.setColumnWidth(cellRef.getCol(),50);

        Row row = sheet.getRow(cellRef.getRow());
        row.setHeight((short) -1);

        return size;
    }
}

jx:autoRowHeight(lastCell =“H3”)

import cn.xj.jxls.AutoRowHeightCommand;
import cn.xj.test.UserPo;
import com.google.common.collect.Lists;
import org.jxls.builder.xls.XlsCommentAreaBuilder;
import org.jxls.common.Context;
import org.jxls.util.JxlsHelper;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import java.io.*;
import java.util.*;

public class Test1 {

    public static void main(String[] args) throws IOException {
        Context context = new Context();
        // 数据集合
        List<UserPo> dataList = Lists.newArrayList();
        for (int i = 0; i < 10; i++) {
            UserPo userPo = new UserPo();
            userPo.setNum("1_"+i);
            userPo.setName("xj_"+i);
            userPo.setAge(i+1);
            userPo.setMail("专注写bug测试中文11111");
            dataList.add(userPo);
        }
        // ${item.num}
        context.putVar("bDatas",dataList);

        // 模板文件再resources 目录下
        Resource resource = new ClassPathResource("/report/test_user1.xlsx");
        InputStream is = resource.getInputStream();

        String outFile = System.getProperty("user.dir")+ File.separator+"springboot-poi"+File.separator+"pdf"+File.separator+System.currentTimeMillis()+ ".xlsx";
        OutputStream outputStream = new FileOutputStream(outFile);

        JxlsHelper jxlsHelper = JxlsHelper.getInstance();
        jxlsHelper.getAreaBuilder().getTransformer();
        // 渲染前  载入 自定义 命令
        XlsCommentAreaBuilder.addCommandMapping("autoRowHeight", AutoRowHeightCommand.class);
        jxlsHelper.processTemplate(is, outputStream, context);
    }
}