Springboot使用jxls实现excel模板导出excel方式

# 设置 列表数据展示 
jx:each(items="item.itemsList" var="obj" lastCell="H11" varIndex="ojbIndex")
jx:if(condition="item.productType.equals('财务报表')&&ojbIndex==0" lastCell="H11" areas=["A11:H11"])

# 设置表title 范围
jx:area(lastCell=”H12”)

<!-- excel 填充 -->
<dependency>
    <groupId>org.jxls</groupId>
    <artifactId>jxls</artifactId>
    <version>2.8.1</version>
</dependency>
<dependency>
    <groupId>net.sf.jxls</groupId>
    <artifactId>jxls-core</artifactId>
    <version>1.0.6</version>
</dependency>
<dependency>
    <groupId>org.jxls</groupId>
    <artifactId>jxls-poi</artifactId>
    <version>2.8.1</version>
</dependency>

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.util.Map;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import net.sf.jxls.transformer.XLSTransformer;
 
public class ExcelUtil {

	/**
	 * 下载excel
	 *
	 * @param sourcePath 模板路径
	 * @param beanParams excel内容
	 * @return
	 */
	public static byte[] downLoadExcel(String sourcePath, Map<String, Object> beanParams) throws Exception {
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		//读取模板
		Resource resource = new ClassPathResource(sourcePath);
		InputStream is = resource.getInputStream();

		XLSTransformer transformer = new XLSTransformer();
		//向模板中写入内容
		Workbook workbook = transformer.transformXLS(is, beanParams);
		//写入成功后转化为输出流
		workbook.write(os);

		byte[] bytes = os.toByteArray();
		return bytes;
	}
}

@GetMapping("/report-xls")
public void excelReport(HttpServletResponse response) throws Exception {
    Map<String, Object> map = new HashMap();
    List<Map<String, Object>> dataList = Lists.newArrayList();
    for (int i = 0; i < 10; i++) {
        Map<String, Object> params = new HashMap<>();
        params.put("num","1_"+i);
        params.put("name","xj_"+i);
        params.put("age",22);
        params.put("mail","专注写bug测试中文");
        dataList.add(params);
    }
    // ${item.num}
    map.put("item",dataList);

    byte[] bytes = ExcelUtil.downLoadExcel("/templates_report/test_user2.xls", map);

    String fileName = UUID.randomUUID().toString() + "_001_test.xls";
    generateFile(response, bytes, fileName);
}

# 设置 列表数据展示 
jx:each(items="item.itemsList" var="obj" lastCell="H11" varIndex="ojbIndex")
jx:if(condition="item.productType.equals('财务报表')&&ojbIndex==0" lastCell="H11" areas=["A11:H11"])

# 设置表title 范围
jx:area(lastCell=”H12”)

	Administrator:
	jx:area(lastCell=”P2”)

Administrator:
jx:each(items="dataList" var="item" lastCell="P2")

Administrator:
jx:area(lastCell=”M20”)  

Administrator:
jx:each(items="dataList" var="item" lastCell="M20")

List<User>中第一个 user 对象