From d8a45e9dc60bbe87286b9773fd46b8eae5441ea5 Mon Sep 17 00:00:00 2001
From: Administrator <15274802129@163.com>
Date: Wed, 14 Jan 2026 14:47:34 +0800
Subject: [PATCH] perf(video): 优化视频播放功能的性能和稳定性
---
src/main/java/cc/mrbird/febs/ai/controller/productPoint/ApiProductPointController.java | 109 ++++++++++++++++++++++++++++++++++++++++++------------
1 files changed, 84 insertions(+), 25 deletions(-)
diff --git a/src/main/java/cc/mrbird/febs/ai/controller/productPoint/ApiProductPointController.java b/src/main/java/cc/mrbird/febs/ai/controller/productPoint/ApiProductPointController.java
index f12cea1..838615e 100644
--- a/src/main/java/cc/mrbird/febs/ai/controller/productPoint/ApiProductPointController.java
+++ b/src/main/java/cc/mrbird/febs/ai/controller/productPoint/ApiProductPointController.java
@@ -79,44 +79,68 @@
public static final String baseUploadDir = "/home/javaweb/webresource/ai/file";
- /**
- * 播放视频文件
- */
+
@GetMapping("/play/{fileName}")
- public void playVideo(@PathVariable("fileName") String fileName,
- HttpServletRequest request,
- HttpServletResponse response) {
+ public void playVideo(@PathVariable("fileName") String fileName, HttpServletRequest request, HttpServletResponse response) {
+ log.info("开始播放视频文件: {}", fileName);
+
+ // 配置参数
+ final int BUFFER_SIZE = 1024 * 1024; // 1MB缓冲区，提高I/O性能
+ final long MAX_INITIAL_SEGMENT = 1024 * 1024 * 15; // 最大初始片段大小（15MB），约30秒中等码率视频
+
try {
String companyId = LoginUserUtil.getLoginUser().getCompanyId();
String uploadDir = baseUploadDir + "/" + companyId;
Path filePath = Paths.get(uploadDir, fileName);
+
+ // 检查文件是否存在
if (!Files.exists(filePath)) {
+ log.warn("视频文件不存在: {}", filePath);
response.setStatus(HttpStatus.NOT_FOUND.value());
+ return;
+ }
+
+ // 检查文件是否为常规文件
+ if (!Files.isRegularFile(filePath)) {
+ log.warn("路径不是常规文件: {}", filePath);
+ response.setStatus(HttpStatus.BAD_REQUEST.value());
return;
}
// 获取文件大小
long fileSize = Files.size(filePath);
+ log.debug("视频文件大小: {} bytes", fileSize);
// 检查是否有Range请求头
String rangeHeader = request.getHeader("Range");
if (rangeHeader != null) {
+ log.debug("收到Range请求: {}", rangeHeader);
// 解析Range头，格式为"bytes=start-end"
String[] ranges = rangeHeader.replace("bytes=", "").split("-");
long start = 0, end = fileSize - 1;
- if (!ranges[0].isEmpty()) {
- start = Long.parseLong(ranges[0]);
- }
- if (ranges.length > 1 && !ranges[1].isEmpty()) {
- end = Long.parseLong(ranges[1]);
- } else {
- end = fileSize - 1;
+ try {
+ if (!ranges[0].isEmpty()) {
+ start = Long.parseLong(ranges[0]);
+ }
+ if (ranges.length > 1 && !ranges[1].isEmpty()) {
+ end = Long.parseLong(ranges[1]);
+ } else {
+ // 如果没有指定结束位置，返回从开始位置到文件末尾的内容
+ // 但限制最大长度，避免一次性传输过大的内容
+ end = Math.min(start + BUFFER_SIZE * 10, fileSize - 1);
+ }
+ } catch (NumberFormatException e) {
+ log.error("无效的Range头格式: {}", rangeHeader, e);
+ response.setStatus(HttpStatus.BAD_REQUEST.value());
+ return;
}
// 确保范围有效
if (start > end || start >= fileSize) {
+ log.warn("无效的Range范围: {}-{}，文件大小: {}", start, end, fileSize);
response.setStatus(HttpStatus.REQUESTED_RANGE_NOT_SATISFIABLE.value());
+ response.setHeader("Content-Range", "bytes */" + fileSize);
return;
}
@@ -127,6 +151,7 @@
// 计算内容长度
long contentLength = end - start + 1;
+ log.debug("处理Range请求: {}-{}，长度: {}", start, end, contentLength);
// 设置响应状态和头部信息
response.setStatus(HttpStatus.PARTIAL_CONTENT.value());
@@ -135,27 +160,42 @@
response.setHeader("Content-Range", "bytes " + start + "-" + end + "/" + fileSize);
response.setHeader("Accept-Ranges", "bytes");
response.setHeader("Content-Disposition", "inline; filename=\"" + fileName + "\"");
+ response.setHeader("Cache-Control", "public, max-age=3600"); // 添加缓存控制
- // 从指定位置开始读取文件
+ // 使用NIO提高读取性能
try (RandomAccessFile randomAccessFile = new RandomAccessFile(filePath.toFile(), "r");
OutputStream outputStream = response.getOutputStream()) {
randomAccessFile.seek(start);
- byte[] buffer = new byte[8192];
+ byte[] buffer = new byte[BUFFER_SIZE];
long remaining = contentLength;
int bytesRead;
while (remaining > 0 && (bytesRead = randomAccessFile.read(buffer, 0, (int) Math.min(buffer.length, remaining))) != -1) {
outputStream.write(buffer, 0, bytesRead);
remaining -= bytesRead;
+
+ // 定期刷新输出流，避免缓冲区溢出
+ if (remaining % (BUFFER_SIZE * 4) == 0) {
+ outputStream.flush();
+ }
}
+
+ // 确保所有数据都被写入
+ outputStream.flush();
+ log.debug("Range请求处理完成: {}-{}", start, end);
}
} else {
+ log.debug("收到完整文件请求，返回初始片段");
- // 没有Range头，返回前30秒内容（如果可能的话）
- // 首先尝试估计前30秒对应的字节数（假设平均比特率为5 Mbps）
- long estimatedFirst30Seconds = (long) (5 * 1024 * 1024 / 8 * 30); // 5 Mbps => bytes for 30 seconds
- long actualEnd = Math.min(estimatedFirst30Seconds, fileSize - 1);
+ // 没有Range头，返回文件大小的10分之一和15MB中较小的那个
+ long oneTenthSize = fileSize / 10;
+ // 计算10分之一和15MB的较小值
+ long maxInitialSize = Math.min(oneTenthSize, MAX_INITIAL_SEGMENT);
+ // 确保至少返回1字节，且不超过文件大小
+ long actualEnd = Math.min(Math.max(maxInitialSize, 1), fileSize - 1);
+ log.debug("返回初始片段: {} bytes (10分之一大小: {} bytes, 15MB限制: {} bytes, 文件总大小: {} bytes)",
+ actualEnd + 1, oneTenthSize, MAX_INITIAL_SEGMENT, fileSize);
// 设置响应状态和头部信息
response.setStatus(HttpStatus.PARTIAL_CONTENT.value()); // 使用206状态码，因为只返回部分内容
@@ -164,29 +204,48 @@
response.setHeader("Content-Range", "bytes 0-" + actualEnd + "/" + fileSize);
response.setHeader("Accept-Ranges", "bytes");
response.setHeader("Content-Disposition", "inline; filename=\"" + fileName + "\"");
+ response.setHeader("Cache-Control", "public, max-age=3600"); // 添加缓存控制
- // 流式传输文件的前30秒
+ // 流式传输文件的初始片段
try (InputStream inputStream = Files.newInputStream(filePath);
OutputStream outputStream = response.getOutputStream()) {
- byte[] buffer = new byte[8192];
+ byte[] buffer = new byte[BUFFER_SIZE];
long written = 0;
int bytesRead;
while (written <= actualEnd && (bytesRead = inputStream.read(buffer)) != -1) {
- long toWrite = Math.min(bytesRead, (int)(actualEnd + 1 - written));
+ long toWrite = Math.min(bytesRead, actualEnd + 1 - written);
outputStream.write(buffer, 0, (int)toWrite);
written += toWrite;
- // 如果已经写完前30秒的内容，则停止
+ // 定期刷新输出流
+ if (written % (BUFFER_SIZE * 4) == 0) {
+ outputStream.flush();
+ }
+
+ // 如果已经写完初始片段，则停止
if (written > actualEnd) {
break;
}
}
+
+ // 确保所有数据都被写入
+ outputStream.flush();
+ log.debug("初始片段传输完成，大小: {} bytes", written);
}
}
} catch (Exception e) {
- e.printStackTrace();
- response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());
+ log.error("播放视频文件时发生错误: {}", fileName, e);
+ try {
+ // 确保响应状态被设置
+ if (!response.isCommitted()) {
+ response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());
+ }
+ } catch (Exception ex) {
+ log.error("设置响应状态时发生错误", ex);
+ }
+ } finally {
+ log.info("视频播放请求处理完成: {}", fileName);
}
}
--
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