| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.rocketmq.dashboard.util; |
| |
| import com.alibaba.excel.EasyExcel; |
| import com.alibaba.excel.support.ExcelTypeEnum; |
| import com.alibaba.excel.write.metadata.style.WriteCellStyle; |
| import com.alibaba.excel.write.metadata.style.WriteFont; |
| import com.alibaba.excel.write.style.HorizontalCellStyleStrategy; |
| import java.io.OutputStream; |
| import java.net.URLEncoder; |
| import java.util.List; |
| import javax.servlet.http.HttpServletResponse; |
| import org.apache.poi.ss.usermodel.HorizontalAlignment; |
| |
| public class ExcelUtil { |
| |
| public static void writeExcel(HttpServletResponse response, List<? extends Object> data, String fileName, |
| String sheetName, Class clazz) throws Exception { |
| WriteCellStyle headWriteCellStyle = new WriteCellStyle(); |
| WriteFont writeFont = new WriteFont(); |
| writeFont.setFontHeightInPoints((short)12); |
| writeFont.setFontName("Microsoft YaHei UI"); |
| headWriteCellStyle.setWriteFont(writeFont); |
| headWriteCellStyle.setHorizontalAlignment(HorizontalAlignment.CENTER); |
| |
| WriteCellStyle contentWriteCellStyle = new WriteCellStyle(); |
| contentWriteCellStyle.setWriteFont(writeFont); |
| contentWriteCellStyle.setHorizontalAlignment(HorizontalAlignment.CENTER); |
| HorizontalCellStyleStrategy horizontalCellStyleStrategy = new HorizontalCellStyleStrategy(headWriteCellStyle, contentWriteCellStyle); |
| EasyExcel.write(getOutputStream(fileName, response), clazz) |
| .excelType(ExcelTypeEnum.XLSX).sheet(sheetName).registerWriteHandler(horizontalCellStyleStrategy).doWrite(data); |
| } |
| |
| private static OutputStream getOutputStream(String fileName, HttpServletResponse response) throws Exception { |
| fileName = URLEncoder.encode(fileName, "UTF-8"); |
| response.setContentType("application/vnd.ms-excel"); |
| response.setCharacterEncoding("utf8"); |
| response.setHeader("Content-Disposition", "attachment;filename=" + fileName + ".xlsx"); |
| return response.getOutputStream(); |
| } |
| } |