Java(HttpURLConnection)内置HTTP模块上传文件
URL url = null; HttpURLConnection httpConn = null; BufferedReader reader = null; String viewUrl = ""; try { String BOUNDARY = UUID.randomUUID().toString().replace("-", ""); url = new URL(dcsConfig.getServerDomain() + dcsServerUrl); httpConn = (HttpURLConnection) url.openConnection(); httpConn.setConnectTimeout(10000); // 设置发起连接的等待时间,10s httpConn.setReadTimeout(300000); // 设置数据读取超时的时间,300s httpConn.setUseCaches(false); // 设置不使用缓存 httpConn.setDoOutput(true); httpConn.setRequestMethod("POST"); httpConn.setRequestProperty("Connection", "Keep-Alive"); httpConn.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)"); httpConn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY); OutputStream os = httpConn.getOutputStream(); BufferedOutputStream bos = new BufferedOutputStream(os); StringBuffer strBuf = new StringBuffer(); strBuf.append(" ").append("--").append(BOUNDARY).append(" "); strBuf.append("Content-Disposition: form-data; name="convertType"").append(" "); //转换类型 strBuf.append("类型"); strBuf.append(" ").append("--").append(BOUNDARY).append(" "); strBuf.append("Content-Disposition: form-data; name="isDelSr"").append(" "); //是否删除源文件:0=删除,1=不删除 strBuf.append("0"); strBuf.append(" ").append("--").append(BOUNDARY).append(" "); strBuf.append("Content-Disposition: form-data; name="file"; filename="" + filename + "" "); strBuf.append("Content-Type:" + contentType + " "); bos.write(strBuf.toString().getBytes()); // 开始写出文件的二进制数据 DataInputStream in = new DataInputStream(file.getInputStream()); int bytes = 0; byte[] bufferOut = new byte[1024]; while ((bytes = in.read(bufferOut)) != -1) { bos.write(bufferOut, 0, bytes); } bos.write((" --" + BOUNDARY).getBytes()); in.close(); bos.flush(); bos.close(); os.close(); // 读取返回数据 StringBuffer strRet = new StringBuffer(); reader = new BufferedReader(new InputStreamReader(httpConn.getInputStream())); String line = null; while ((line = reader.readLine()) != null) { strRet.append(line); } reader.close(); JSONObject json = JSON.parseObject(strRet.toString()); } catch (Exception ex) { logger.error("-{}", ex); } finally { if (reader != null) { reader = null; } httpConn.disconnect(); }
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