easyexcel的简单使用(execl模板导出)

模板支持功能点

1. 支持列表
2. 支持自定义头名称
3. 支持自定义fileName
4. 支持汇总

模板示例

操作

pom引入

  <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>easyexcel</artifactId>
            <version>${easyexcel.version}</version>
        </dependency>

版本

  <easyexcel.version>3.3.4</easyexcel.version>

这里尽量使用新版本，用老版本的话可能会有问题。

简单封装easyexcel方法

public class EasyExportUtil {
/**
* 指定流输出
* @param fileName
* @param response
* @param sheetName
* @param templateFileName
* @param list
* @param 
*/
public static <T>  void exportWithTemplate(String fileName,HttpServletResponse response, String sheetName, String templateFileName, List<T> list) {
try {
response.setHeader("content-disposition", "attachment;filename="+ URLEncoder.encode(fileName, "UTF-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
try (ExcelWriter excelWriter = EasyExcel.write(response.getOutputStream()).withTemplate(templateFileName).registerWriteHandler(new CustomTemplateSheetStrategy(0,sheetName)).build()) {
WriteSheet writeSheet = EasyExcel.writerSheet().build();
FillConfig fillConfig = FillConfig.builder().forceNewRow(Boolean.TRUE).build();
excelWriter.fill(list, fillConfig, writeSheet);
Map<String, Object> map = new HashMap<>();
map.put("date", "2019年10月9日13:28:28");
map.put("total", 1000);
excelWriter.fill(map, writeSheet);
} catch (IOException e) {
e.printStackTrace();
}
}
}

自定义拦截器

public class CustomTemplateSheetStrategy implements SheetWriteHandler {
private Integer sheetNo;
private String sheetName;
public CustomTemplateSheetStrategy(String sheetName) {
this.sheetName = sheetName;
}
public CustomTemplateSheetStrategy(Integer sheetNo, String sheetName) {
this.sheetNo = sheetNo;
this.sheetName = sheetName;
}
@Override
public void beforeSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
}
/**
* 功能：动态修改模板中sheet的名称
* sheet创建完成后调用
* @param writeWorkbookHolder
* @param writeSheetHolder
*/
@Override
public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
if (sheetName == null) {
return;
}
if (sheetNo == null) {
sheetNo = 0;
}
writeWorkbookHolder.getCachedWorkbook().setSheetName(sheetNo, sheetName);
}
}

date和total 我这里就写死了，大家根据自己的情况进行更改。

接口示例

@GetMapping("/export")
public void exportDeviceList(HttpServletResponse response) {
List<ExcelData3> list = new ArrayList<>();
for (int i = 0; i <= 10; i++) {
ExcelData3 excelData3 = new ExcelData3();
excelData3.setA("testA");
excelData3.setB("testB");
excelData3.setC("testC");
excelData3.setD("testD");
excelData3.setE("testE");
excelData3.setF("testF");
excelData3.setG("testG");
excelData3.setH("testH");
excelData3.setI("testI");
list.add(excelData3);
}
EasyExportUtil.exportWithTemplate(System.currentTimeMillis() + ".xlsx", response, "我是一个sheetName", CommonUtlis.resolvePath("test.xlsx"), list);
}

调用

导出示例

参考

easyexcel示例填充

源码地址

源码示例