{"id":1340,"date":"2024-07-09T15:05:19","date_gmt":"2024-07-09T07:05:19","guid":{"rendered":"https:\/\/blog.nonot.cn\/?p=1340"},"modified":"2024-07-09T15:05:43","modified_gmt":"2024-07-09T07:05:43","slug":"java%e7%bd%91%e7%ab%99%e8%a7%86%e9%a2%91%e8%b5%84%e6%ba%90%e5%8a%a0%e5%af%86","status":"publish","type":"post","link":"https:\/\/blog.nonot.cn\/index.php\/2024\/07\/09\/java%e7%bd%91%e7%ab%99%e8%a7%86%e9%a2%91%e8%b5%84%e6%ba%90%e5%8a%a0%e5%af%86\/","title":{"rendered":"Java\u7f51\u7ad9\u89c6\u9891\u8d44\u6e90\u52a0\u5bc6"},"content":{"rendered":"

\u76ee\u524d\u516c\u53f8\u662f\u505a\u7ebf\u4e0a\u89c6\u9891\u6559\u80b2\u7684\uff0c\u6559\u80b2\u89c6\u9891\u8d44\u6e90\u4e00\u76f4\u88ab\u76d7\u53d6\uff0c\u7248\u6743\u88ab\u4fb5\u72af\u3002\u9886\u5bfc\u7279\u522b\u91cd\u89c6\u6b64\u4e8b\uff0c\u4e8e\u662f\u5c31\u5f00\u59cb\u63a2\u7d22\u5982\u4f55\u52a0\u5bc6\u3002<\/p>\n

\u679c\u7136\uff0c\u529f\u592b\u4e0d\u8d1f\u6709\u5fc3\u4eba\u3002\u3002\u3002\u3002<\/p>\n

\u4e3a\u4e86\u9075\u5b88\u6280\u672f\u5f00\u6e90\u65e0\u79c1\u5949\u732e\u7684\u539f\u5219\uff0c\u8ba9\u7248\u6743\u80fd\u591f\u5f97\u5230\u66f4\u591a\u7684\u4fdd\u62a4\uff0c\u51b3\u5b9a\u679c\u65ad\u5206\u4eab\u6b64\u529f\u80fd\u7684\u5b9e\u73b0\u65b9\u6cd5\uff01<\/p>\n

 <\/p>\n

\u5148\u5e26\u5927\u5bb6\u770b\u4e00\u4e0b\u4e3b\u6d41\u89c6\u9891\u7f51\u7ad9\u7684\u5b9e\u73b0\uff1a<\/p>\n

\"1044505-20190513144454097-1375551812\"<\/p>\n

\"1044505-20190513144655288-1529745749\"<\/p>\n

 <\/p>\n

\u7b49\u7b49\u5427\uff0c\u5c31\u4e0d\u8fc7\u591a\u5c55\u793a\u4e86\uff0c\u76ee\u6d4b\u5f88\u591a\u7f51\u7ad9\u90fd\u7528\u8fd9\u79cd\u52a0\u5bc6\u65b9\u5f0f\uff0c\u5176\u4e2d\u7684src\u94fe\u63a5\u90fd\u662fblob:http:\/\/xxx\u683c\u5f0f\u7684\uff0c\u4e14\u6839\u636e\u94fe\u63a5\u65e0\u6cd5\u83b7\u53d6\u89c6\u9891\u6e90\u3002\u56e0\u4e3a\u8fd9\u5e76\u4e0d\u662f\u4e00\u4e2a\u5728\u7ebf\u7684\u89c6\u9891\u5b58\u653e\u5730\u5740\uff0c\u8fd9\u6837\u4f60\u901a\u8fc7\u722c\u866b\u811a\u672c\u4e5f\u65e0\u6cd5\u4e0b\u8f7d\u8be5\u89c6\u9891\u6587\u4ef6<\/p>\n

\u90a3\u4e48\u5177\u4f53\u5982\u4f55\u5b9e\u73b0\u7684\u5462\uff1f<\/p>\n

\u4e0d\u6025\uff0c\u54b1\u4eec\u4e00\u6b65\u4e00\u6b65\u6765\uff1a<\/p>\n

 <\/p>\n

\u7b2c\u4e00\u6b65\uff1a<\/strong>java\u00a0\u670d\u52a1\u5668\u63a5\u53e3\uff0c\u6839\u636eurl \u8fd4\u56de\u8d44\u6e90<\/p>\n

\n
\"copycode-3\"<\/a><\/span><\/div>\n
package com.wf.course.web.controller;\r\n\r\n\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.bind.annotation.ResponseBody;\r\n\r\nimport javax.servlet.http.HttpServletRequest;\r\nimport javax.servlet.http.HttpServletResponse;\r\nimport java.io.*;\r\nimport java.net.MalformedURLException;\r\nimport java.net.URL;\r\nimport java.net.URLConnection;\r\nimport java.net.URLEncoder;\r\n\r\n@Controller\r\npublic class VideoController {\r\n\r\n    @ResponseBody\r\n    @RequestMapping(\"\/getVideoSrc\")\r\n    public OutputStream getVideoSrc(HttpServletRequest httpServletRequest,\r\n                                    HttpServletResponse httpServletResponse){\r\n        \/\/1.\u521b\u5efa\u6587\u4ef6\u5bf9\u8c61\r\n        File f = new File(\"D:\/test\/x.mp4\");\r\n        \/\/2.\u83b7\u53d6\u6587\u4ef6\u540d\u79f0\r\n        String fileName = f.getName();\r\n        \/\/3.\u5bfc\u51fa\u6587\u4ef6\r\n        String agent = httpServletRequest.getHeader(\"User-Agent\").toUpperCase();\r\n        InputStream fis = null;\r\n        OutputStream os = null;\r\n        try {\r\n            \/\/4.\u83b7\u53d6\u8f93\u5165\u6d41\r\n            fis = new BufferedInputStream(new FileInputStream(f.getPath()));\r\n            byte[] buffer;\r\n            buffer = new byte[fis.available()];\r\n            fis.read(buffer);\r\n            httpServletResponse.reset();\r\n            \/\/5.\u7531\u4e8e\u706b\u72d0\u548c\u5176\u4ed6\u6d4f\u89c8\u5668\u663e\u793a\u540d\u79f0\u7684\u65b9\u5f0f\u4e0d\u76f8\u540c\uff0c\u9700\u8981\u8fdb\u884c\u4e0d\u540c\u7684\u7f16\u7801\u5904\u7406\r\n            if(agent.indexOf(\"FIREFOX\") != -1){\/\/\u706b\u72d0\u6d4f\u89c8\u5668\r\n                httpServletResponse.addHeader(\"Content-Disposition\", \"attachment;filename=\"+ new String(fileName.getBytes(\"GB2312\"),\"ISO-8859-1\"));\r\n            }else{\/\/\u5176\u4ed6\u6d4f\u89c8\u5668\r\n                httpServletResponse.addHeader(\"Content-Disposition\", \"attachment;filename=\"+ URLEncoder.encode(fileName, \"UTF-8\"));\r\n            }\r\n            \/\/6.\u8bbe\u7f6eresponse\u7f16\u7801\r\n            httpServletResponse.setCharacterEncoding(\"UTF-8\");\r\n            httpServletResponse.addHeader(\"Content-Length\", \"\" + f.length());\r\n            \/\/\u8bbe\u7f6e\u8f93\u51fa\u6587\u4ef6\u7c7b\u578b\r\n            httpServletResponse.setContentType(\"video\/mpeg4\");\r\n            \/\/7.\u83b7\u53d6response\u8f93\u51fa\u6d41\r\n            os = httpServletResponse.getOutputStream();\r\n            os.flush();\r\n            \/\/8.\u8f93\u51fa\u6587\u4ef6\r\n            os.write(buffer);\r\n        }catch(Exception e){\r\n            System.out.println(e.getMessage());\r\n        } finally{\r\n            \/\/\u5173\u95ed\u6d41\r\n            try {\r\n                if(fis != null){ fis.close(); }\r\n\r\n                if(os != null){ os.flush(); }\r\n\r\n                if(os != null){os.close(); }\r\n\r\n            } catch (IOException e) {\r\n                System.out.println(e.getMessage());\r\n            }\r\n        }\r\n\r\n        return os;\r\n    }\r\n\r\n\r\n    @RequestMapping(\"\/getVideoBlob_V2\")\r\n    public OutputStream getVideoBlob_V2(HttpServletRequest httpServletRequest,\r\n                                        HttpServletResponse httpServletResponse) {\r\n\r\n        String httpUrl = \"https:\/\/wangfang.oss-cn-qingdao.aliyuncs.com\/wf_video\/videoPath\/863E1B126B81B7B60993CC0B9B1EC1EA.mp3\";\r\n        \/\/ 1.\u4e0b\u8f7d\u7f51\u7edc\u6587\u4ef6\r\n        URL url = null;\r\n        try {\r\n            url = new URL(httpUrl);\r\n        } catch (MalformedURLException e1) {\r\n            e1.printStackTrace();\r\n        }\r\n\r\n        InputStream inStream = null;\r\n        OutputStream outputStream = null;\r\n        try {\r\n\r\n            \/\/2.\u83b7\u53d6\u94fe\u63a5\r\n            URLConnection conn = url.openConnection();\r\n            \/\/3.\u8f93\u5165\u6d41\r\n            inStream = conn.getInputStream();\r\n            httpServletResponse.reset();\r\n            httpServletResponse.addHeader(\"Content-Disposition\", \"attachment;filename=\" + httpUrl);\r\n            \/\/6.\u8bbe\u7f6eresponse\u7f16\u7801\r\n            httpServletResponse.setCharacterEncoding(\"UTF-8\");\/\/\u8bbe\u7f6e\u8f93\u51fa\u6587\u4ef6\u7c7b\u578b\r\n            httpServletResponse.setContentType(\"video\/mpeg4\");\r\n            \/\/7.\u83b7\u53d6response\u8f93\u51fa\u6d41\r\n            outputStream = httpServletResponse.getOutputStream();\r\n            int byteRead;\r\n            while ((byteRead = inStream.read()) != -1) {\r\n                outputStream.write(byteRead);\r\n            }\r\n\r\n        } catch (IOException e) {\r\n            e.printStackTrace();\r\n            System.out.println(e);\r\n        } finally {\r\n\r\n            try {\r\n                inStream.close();\r\n                outputStream.close();\r\n            } catch (IOException e) {\r\n                e.printStackTrace();\r\n            }\r\n        }\r\n\r\n        return outputStream;\r\n    }\r\n}<\/pre>\n
\"copycode-3\"<\/a><\/span><\/div>\n<\/div>\n
 <\/p>\n
\u7b2c\u4e8c\u6b65\uff1a<\/strong>\u9875\u9762\u6dfb\u52a0<video>\u6807\u7b7e\u5f15\u7528<\/p>\n
\n
<video controls=\"controls\"  preload=\"auto\"  height=\"300\" width=\"400\" id=\"videoPath\"    type=\"video\/mp4\">\r\n                                         \u60a8\u7684\u6d4f\u89c8\u5668\u4e0d\u652f\u6301html5!\r\n                                      <\/video><\/pre>\n<\/div>\n
 <\/p>\n
\u7b2c\u4e09\u6b65\uff1a<\/strong>\u9875\u9762js\u5904\u7406\uff0c\u8c03\u7528\u63a5\u53e3\uff0c\u52a0\u8f7d\u8d44\u6e90<\/p>\n
\n
\"copycode-3\"<\/a><\/span><\/div>\n
$(function () {\r\n            var xhr = new XMLHttpRequest();\/\/\u521b\u5efaXMLHttpRequest\u5bf9\u8c61\r\n            xhr.open('GET', 'http:\/\/localhost:8080\/getVideoBlob_V2', true);\/\/\u914d\u7f6e\u8bf7\u6c42\u65b9\u5f0f\u3001\u8bf7\u6c42\u5730\u5740\u4ee5\u53ca\u662f\u5426\u540c\u6b65\r\n            xhr.responseType = 'blob';\/\/\u8bbe\u7f6e\u7ed3\u679c\u7c7b\u578b\u4e3ablob;\r\n            xhr.onload = function(e) {\r\n                alert(this.status);\r\n                if (this.status === 200) {\r\n                    \/\/ \u83b7\u53d6blob\u5bf9\u8c61\r\n                    var blob = this.response;\r\n                    console.log(blob);\r\n                    \/\/ \u83b7\u53d6blob\u5bf9\u8c61\u5730\u5740\uff0c\u5e76\u628a\u503c\u8d4b\u7ed9\u5bb9\u5668\r\n                    $(\"#videoPath\").attr(\"src\", URL.createObjectURL(blob));\r\n                }\r\n            };\r\n            xhr.send();\r\n        });<\/pre>\n
\"copycode-3\"<\/a><\/span><\/div>\n<\/div>\n