audio读取文件流播放音频

心已赠人 2022-05-27 02:41 353阅读 0赞

jsp阶段：

效果图：

![20180410105913463][]

java部分：

@RequestMapping("getAudio")  
        @ResponseBody
    	public String getAudio(HttpServletRequest request, HttpServletResponse response) throws Exception{
    		 Map<String, Object> map = getPageMapParams();	
    		 List<Map<String, Object>> list_new =xcxQqandWxServices.getimgOraudiopath(map);
    		 
    		 String path = (String)list_new.get(0).get("TRANCFILEPATH");
    		 if (path!=null) {
    			 String range = request.getHeader("Range");  
                             String[] rs = range.split("\\=");  
                             range = rs[1].split("\\-")[0]; 
    			 File file = new File(path);  
    			 OutputStream os = response.getOutputStream();  
    			 FileInputStream fis = new FileInputStream(file);  
    			 long length = file.length();  
    			 // 播放进度  
    			 int count = 0;  
    			 // 播放百分比  
    			 int percent = (int)(length * 1);  
    			 int irange = Integer.parseInt(range);  
                             length = length - irange;  
    
                                 response.addHeader("Accept-Ranges", "bytes");  
                                 response.addHeader("Content-Length", length + "");  
                                 response.addHeader("Content-Range", "bytes " + range + "-" + length + "/" + length);  
                                 response.addHeader("Content-Type", "audio/mpeg;charset=UTF-8");   
    			
    			 int len = 0;  
    			 byte[] b = new byte[1024];  
    			 while ((len = fis.read(b)) != -1) {  
    			     os.write(b, 0, len);  
    			     count += len;  
    			     if(count >= percent){  
    			         break;  
    			     }  
    			 }  
    			 fis.close();  
    			 os.close();  
    		 }
    		return null;
    	}

借鉴地址：https://blog.csdn.net/xxzblog/article/details/41312315

[20180410105913463]: /images/20220527/5ba04a44158746e2b0b84393d3604cbe.png