java http post上传文件详解编程语言

@IgnoreToken 
    @RequestMapping(value = "/upload/cpicFile", method = RequestMethod.POST) 
    public void cpicFile(HttpServletResponse response, HttpServletRequest request){ 
        ErrorCode errorCode = ErrorCode.FAILED; 
        Map<String,Object> reqData = this.getContent(request); 
        String path = SysConf.CPIC_WORKBASEDIR; //上传路径 
        try { 
            String name = (String)reqData.get("name"); 
            String content = (String)reqData.get("content"); 
            byte[] bytes = org.apache.commons.codec.binary.Base64.decodeBase64(content); 
             
            //写入文件 
            File fileTmp = new File(path + name); //临时文件 
            FileOutputStream fop = new FileOutputStream(fileTmp); 
            if (!fileTmp.exists()) { 
                fileTmp.createNewFile(); 
            } 
            fop.write(bytes); 
            fop.flush(); 
            fop.close(); 
            System.err.println("Done"); 
            errorCode = ErrorCode.SUCCESS; 
        } catch (Exception e){ 
            logger.error("上传CPIC图片异常",e); 
            errorCode = ErrorCode.SYS_ERROR; 
        } 
        sendResponseContent(response, reqData, errorCode); 
    }

@Test 
    public void testCpicUploadFile(){ 
        try { 
            Map<String,Object> paramMap=new HashMap<>(); 
            paramMap.put("name", "cpic-160714.xml"); 
            File f = new File("C:/sftp/cpic-20160713-3.xml"); 
            InputStream in = new FileInputStream(f); 
            byte[] b = new byte[(int)f.length()];     //创建合适文件大小的数组    
            in.read(b);    //读取文件中的内容到b[]数组    
            in.close();    
             
            String s = new String(b); 
            System.out.println("s = " + s); 
            System.out.println("b1 = " + b);   //内存地址 
            String ss = org.apache.commons.codec.binary.Base64.encodeBase64String(b);      //base64编码 
            System.out.println("ss = " + ss); 
            System.out.println("b2 = " + Base64.decodeBase64(ss));  //内存地址 
             
            paramMap.put("content", ss);  
            //@IgnoreToken 
//            paramMap.put("token", "54ungzbaach65xypcceq48gd6jwlyros");  //token可以加一个注解。 
            System.out.println("paramMap="+paramMap); 
            HttpResult httpResult = HttpUtil.post("/cpic/upload/cpicFile",paramMap); 
            System.out.println(httpResult); 
        } catch (Exception e) { 
            e.printStackTrace(); 
        } 
         
    }