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feat(printer): 引入唯一处理标识符避免文件冲突

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- 添加 UUID 依赖以生成唯一标识符
-为打印任务生成唯一处理 ID，防止多线程文件名冲突
- 更新原图、水印图及旋转图片的文件命名逻辑
- 确保每个打印任务使用独立的临时文件名
This commit is contained in:
Jerry Yan
2025-10-16 15:37:51 +08:00
parent 56e1081304
commit 2b79302874
1 changed files with 7 additions and 4 deletions
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11
src/main/java/com/ycwl/basic/service/printer/impl/PrinterServiceImpl.java
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@@ -67,6 +67,7 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
@@ -464,9 +465,11 @@ public class PrinterServiceImpl implements PrinterService {
// 准备水印处理器
IOperator operator = ImageWatermarkFactory.get(watermarkType);
// 生成唯一的处理标识符，避免多线程环境下的文件冲突
String processId = item.getId() + "_" + UUID.randomUUID().toString();
// 下载原图
File originalFile = new File("print_" + item.getId() + ".jpg");
File watermarkedFile = new File("print_" + item.getId() + "_" + watermarkType.getType() + "." + watermarkType.getPreferFileType());
File originalFile = new File("print_" + processId + ".jpg");
File watermarkedFile = new File("print_" + processId + "_" + watermarkType.getType() + "." + watermarkType.getPreferFileType());
File rotatedOriginalFile = null;
File rotatedWatermarkedFile = null;
boolean needRotation = false;
@@ -481,7 +484,7 @@ public class PrinterServiceImpl implements PrinterService {
if (!isLandscape) {
// 竖图需要旋转为横图
needRotation = true;
rotatedOriginalFile = new File("print_" + item.getId() + "_rotated.jpg");
rotatedOriginalFile = new File("print_" + processId + "_rotated.jpg");
ImageUtils.rotateImage90(originalFile, rotatedOriginalFile);
log.info("竖图已旋转为横图，照片ID: {}", item.getId());
}
@@ -495,7 +498,7 @@ public class PrinterServiceImpl implements PrinterService {
// 如果之前旋转了,需要将水印图片旋转回去
if (needRotation) {
rotatedWatermarkedFile = new File("print_" + item.getId() + "_final_" + watermarkType.getType() + "." + watermarkType.getPreferFileType());
rotatedWatermarkedFile = new File("print_" + processId + "_final_" + watermarkType.getType() + "." + watermarkType.getPreferFileType());
ImageUtils.rotateImage270(watermarkedFile, rotatedWatermarkedFile);
log.info("水印图片已旋转回竖图，照片ID: {}", item.getId());
// 删除中间的横图水印文件