guzijian / wvp-assist · Commits

Commit add6d0eb22f2d53a124185ae36a686b230936230

Authored by 648540858
1 parent 2ad1001e

去掉多余注释

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Showing 1 changed file with 0 additions and 175 deletions
src/main/java/top/panll/assist/controller/DownloadController.java deleted 100644 → 0
  View file @2ad1001
1 -//package top.panll.assist.controller;  
2 -//  
3 -//  
4 -//import io.swagger.v3.oas.annotations.Operation;  
5 -//import io.swagger.v3.oas.annotations.Parameter;  
6 -//import io.swagger.v3.oas.annotations.tags.Tag;  
7 -//import org.apache.catalina.connector.ClientAbortException;  
8 -//import org.slf4j.Logger;  
9 -//import org.slf4j.LoggerFactory;  
10 -//import org.springframework.beans.factory.annotation.Autowired;  
11 -//import org.springframework.stereotype.Controller;  
12 -//import org.springframework.web.bind.annotation.*;  
13 -//import top.panll.assist.dto.UserSettings;  
14 -//import top.panll.assist.utils.PageInfo;  
15 -//  
16 -//import javax.servlet.http.HttpServletRequest;  
17 -//import javax.servlet.http.HttpServletResponse;  
18 -//import java.io.BufferedOutputStream;  
19 -//import java.io.File;  
20 -//import java.io.IOException;  
21 -//import java.io.RandomAccessFile;  
22 -//import java.nio.charset.StandardCharsets;  
23 -//import java.util.List;  
24 -//import java.util.Map;  
25 -//  
26 -//@Controller  
27 -//@RequestMapping("/download")  
28 -//public class DownloadController {  
29 -//  
30 -// private final static Logger logger = LoggerFactory.getLogger(DownloadController.class);  
31 -//  
32 -// @Autowired  
33 -// private UserSettings userSettings;  
34 -//  
35 -// /**  
36 -// * 获取app+stream列表  
37 -// *  
38 -// * @return  
39 -// */  
40 -// @GetMapping(value = "/**")  
41 -// @ResponseBody  
42 -// public void download(HttpServletRequest request, HttpServletResponse response) {  
43 -//  
44 -// String resourcePath = request.getServletPath();  
45 -// System.out.println(resourcePath);  
46 -// resourcePath = resourcePath.substring("/download".length() + 1, resourcePath.length());  
47 -// String record = userSettings.getRecord();  
48 -//// if (record.endsWith("/")) {  
49 -//// record = record.substring(0, record.length() - 1);  
50 -//// System.out.println(record);  
51 -//// }  
52 -// System.out.println(record + resourcePath);  
53 -// File file = new File(record + resourcePath);  
54 -// if (!file.exists()) {  
55 -// response.setStatus(HttpServletResponse.SC_NOT_FOUND);  
56 -// return;  
57 -// }  
58 -//  
59 -// /**  
60 -// * 参考实现来自： CSDN 进修的CODER SpringBoot Java实现Http方式分片下载断点续传+实现H5大视频渐进式播放  
61 -// * https://blog.csdn.net/lovequanquqn/article/details/104562945  
62 -// */  
63 -// String range = request.getHeader("Range");  
64 -// logger.info("current request rang:" + range);  
65 -// //开始下载位置  
66 -// long startByte = 0;  
67 -// //结束下载位置  
68 -// long endByte = file.length() - 1;  
69 -// logger.info("文件开始位置：{}，文件结束位置：{}，文件总长度：{}", startByte, endByte, file.length());  
70 -//  
71 -// //有range的话  
72 -// if (range != null && range.contains("bytes=") && range.contains("-")) {  
73 -// range = range.substring(range.lastIndexOf("=") + 1).trim();  
74 -// String[] ranges = range.split("-");  
75 -// try {  
76 -// //判断range的类型  
77 -// if (ranges.length == 1) {  
78 -// // 类型一：bytes=-2343,  
79 -// if (range.startsWith("-")) {  
80 -// endByte = Long.parseLong(ranges[0]);  
81 -// }  
82 -// //类型二：bytes=2343-  
83 -// else if (range.endsWith("-")) {  
84 -// startByte = Long.parseLong(ranges[0]);  
85 -// }  
86 -// }  
87 -// //类型三：bytes=22-2343  
88 -// else if (ranges.length == 2) {  
89 -// startByte = Long.parseLong(ranges[0]);  
90 -// endByte = Long.parseLong(ranges[1]);  
91 -// }  
92 -//  
93 -// } catch (NumberFormatException e) {  
94 -// startByte = 0;  
95 -// endByte = file.length() - 1;  
96 -// logger.error("Range Occur Error,Message:{}", e.getLocalizedMessage());  
97 -// }  
98 -//  
99 -//  
100 -// }  
101 -//  
102 -// // 要下载的长度  
103 -// long contentLength = endByte - startByte + 1;  
104 -// // 文件名  
105 -// String fileName = file.getName();  
106 -// // 文件类型  
107 -// String contentType = request.getServletContext().getMimeType(fileName);  
108 -//  
109 -// // 解决下载文件时文件名乱码问题  
110 -// byte[] fileNameBytes = fileName.getBytes(StandardCharsets.UTF_8);  
111 -// fileName = new String(fileNameBytes, 0, fileNameBytes.length, StandardCharsets.ISO_8859_1);  
112 -//  
113 -// response.setHeader("Content-Type", contentType);  
114 -// response.setHeader("Content-Length", String.valueOf(contentLength));  
115 -// //inline表示浏览器直接使用，attachment表示下载，fileName表示下载的文件名  
116 -// response.setHeader("Content-Disposition", "inline;filename=" + fileName);  
117 -// response.setContentType(contentType);  
118 -// if (range != null) {  
119 -// //各种响应头设置  
120 -// //支持断点续传，获取部分字节内容：  
121 -// response.setHeader("Accept-Ranges", "bytes");  
122 -// //http状态码要为206：表示获取部分内容  
123 -// response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);  
124 -// // Content-Range，格式为：[要下载的开始位置]-[结束位置]/[文件总大小]  
125 -// response.setHeader("Content-Range", "bytes " + startByte + "-" + endByte + "/" + file.length());  
126 -// } else {  
127 -// response.setStatus(HttpServletResponse.SC_OK);  
128 -// }  
129 -//  
130 -//  
131 -// BufferedOutputStream outputStream = null;  
132 -// RandomAccessFile randomAccessFile = null;  
133 -// //已传送数据大小  
134 -// long transmitted = 0;  
135 -// try {  
136 -// randomAccessFile = new RandomAccessFile(file, "r");  
137 -//  
138 -// outputStream = new BufferedOutputStream(response.getOutputStream());  
139 -// byte[] buff = new byte[4096];  
140 -// int len = 0;  
141 -// randomAccessFile.seek(startByte);  
142 -// //warning：判断是否到了最后不足4096（buff的length）个byte这个逻辑（(transmitted + len) <= contentLength）要放前面  
143 -// //不然会会先读取randomAccessFile，造成后面读取位置出错;  
144 -// while ((transmitted + len) <= contentLength && (len = randomAccessFile.read(buff)) != -1) {  
145 -// outputStream.write(buff, 0, len);  
146 -// transmitted += len;  
147 -// }  
148 -// //处理不足buff.length部分  
149 -// if (transmitted < contentLength) {  
150 -// len = randomAccessFile.read(buff, 0, (int) (contentLength - transmitted));  
151 -// outputStream.write(buff, 0, len);  
152 -// transmitted += len;  
153 -// }  
154 -//  
155 -// outputStream.flush();  
156 -// response.flushBuffer();  
157 -// randomAccessFile.close();  
158 -// logger.info("下载完毕：" + startByte + "-" + endByte + "：" + transmitted);  
159 -// } catch (ClientAbortException e) {  
160 -// logger.warn("用户停止下载：" + startByte + "-" + endByte + "：" + transmitted);  
161 -// //捕获此异常表示拥护停止下载  
162 -// } catch (IOException e) {  
163 -// e.printStackTrace();  
164 -// logger.error("用户下载IO异常，Message：{}", e.getLocalizedMessage());  
165 -// } finally {  
166 -// try {  
167 -// if (randomAccessFile != null) {  
168 -// randomAccessFile.close();  
169 -// }  
170 -// } catch (IOException e) {  
171 -// e.printStackTrace();  
172 -// }  
173 -// }///end try  
174 -// }  
175 -//}