lzq
/
njzscloud
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

1

localizer
ljw 2025-10-13 11:10:17 +08:00
parent ae3c856b28
commit 3fc015d6d9
1 changed files with 14 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/utils/FileUtil.java
View File

@ -68,17 +68,17 @@ public class FileUtil extends cn.hutool.core.io.FileUtil {
SXSSFSheet sheet = (SXSSFSheet) writer.getSheet(); SXSSFSheet sheet = (SXSSFSheet) writer.getSheet();
// 手动设置列宽，确保标题和数据内容都能完整显示 // 手动设置列宽，确保标题和数据内容都能完整显示
int columnCount = sheet.getRow(0).getLastCellNum(); /*int columnCount = sheet.getRow(0).getLastCellNum();
for (int i = 0; i < columnCount; i++) { for (int i = 0; i < columnCount; i++) {
String headerText = ""; String headerText = "";
int maxContentLength = 0; int maxContentLength = 0;
try { try {
// 获取标题文本 // 获取标题文本
if (sheet.getRow(0) != null && sheet.getRow(0).getCell(i) != null) { if (sheet.getRow(0) != null && sheet.getRow(0).getCell(i) != null) {
headerText = sheet.getRow(0).getCell(i).getStringCellValue(); headerText = sheet.getRow(0).getCell(i).getStringCellValue();
} }
// 遍历所有数据行，找到最长的内容 // 遍历所有数据行，找到最长的内容
for (int rowIndex = 1; rowIndex <= sheet.getLastRowNum(); rowIndex++) { for (int rowIndex = 1; rowIndex <= sheet.getLastRowNum(); rowIndex++) {
if (sheet.getRow(rowIndex) != null && sheet.getRow(rowIndex).getCell(i) != null) { if (sheet.getRow(rowIndex) != null && sheet.getRow(rowIndex).getCell(i) != null) {
@ -91,33 +91,33 @@ public class FileUtil extends cn.hutool.core.io.FileUtil {
} catch (Exception e) { } catch (Exception e) {
// 忽略获取单元格值的异常 // 忽略获取单元格值的异常
} }
// 根据标题和内容的最大长度计算合适的列宽 // 根据标题和内容的最大长度计算合适的列宽
int headerLength = headerText.length(); int headerLength = headerText.length();
int contentLength = maxContentLength; int contentLength = maxContentLength;
int maxLength = Math.max(headerLength, contentLength); int maxLength = Math.max(headerLength, contentLength);
// 设置列宽：每个字符约2个字符宽度，最小8个字符，最大50个字符 // 设置列宽：每个字符约2个字符宽度，最小8个字符，最大50个字符
int calculatedWidth = Math.max(Math.min(maxLength * 2, 50), 8) * 256; int calculatedWidth = Math.max(Math.min(maxLength * 2, 50), 8) * 256;
int currentWidth = sheet.getColumnWidth(i); int currentWidth = sheet.getColumnWidth(i);
// 设置列宽，确保标题和内容都能完整显示 // 设置列宽，确保标题和内容都能完整显示
sheet.setColumnWidth(i, Math.max(calculatedWidth, currentWidth)); sheet.setColumnWidth(i, Math.max(calculatedWidth, currentWidth));
} }*/
// 尝试自动调整列宽 // 尝试自动调整列宽
// try { try {
// sheet.trackAllColumnsForAutoSizing(); sheet.trackAllColumnsForAutoSizing();
// writer.autoSizeColumnAll(); writer.autoSizeColumnAll();
// } catch (Exception e) { } catch (Exception e) {
// log.warn("自动调整列宽失败，使用手动设置的列宽", e); log.warn("自动调整列宽失败，使用手动设置的列宽", e);
// } }
//response为HttpServletResponse对象 //response为HttpServletResponse对象
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8"); response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
//设置文件名，支持中文文件名 //设置文件名，支持中文文件名
try { try {
String encodedFileName = java.net.URLEncoder.encode(fileName, "UTF-8"); String encodedFileName = java.net.URLEncoder.encode(fileName, "UTF-8");
response.setHeader("Content-Disposition", "attachment;filename=" + encodedFileName + ";filename*=UTF-8''" + encodedFileName); response.setHeader("Content-Disposition", "attachment;filename=" + encodedFileName);
} catch (Exception e) { } catch (Exception e) {
// 如果编码失败，使用默认文件名 // 如果编码失败，使用默认文件名
response.setHeader("Content-Disposition", "attachment;filename=file.xlsx"); response.setHeader("Content-Disposition", "attachment;filename=file.xlsx");