Java读取并下载已有的Excel模板
时间: 2024-02-05 15:13:16 浏览: 28
可以使用Java中的Apache POI库来读取和下载已有的Excel模板。
以下是一个简单的示例代码,演示如何读取并下载一个名为“template.xlsx”的Excel模板:
```java
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
public class ExcelTemplateDownloadServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String fileName = "template.xlsx";
String filePath = "/path/to/template.xlsx";
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-disposition", "attachment; filename=" + fileName);
try (InputStream in = new FileInputStream(filePath); OutputStream out = response.getOutputStream()) {
Workbook wb = WorkbookFactory.create(in);
wb.write(out);
} catch (Exception e) {
e.printStackTrace();
}
}
}
```
该代码使用Servlet技术,将Excel模板作为响应发送给客户端。您可以根据需要修改代码以满足您的要求。