/** * 直接通过HTTP协议提交数据到服务器,实现如下面表单提交功能: <FORM METHOD=POST * ACTION="http://192.168.0.200:8080/ssi/fileload/test.do" enctype="multipart/form-data"> <INPUT * TYPE="text" NAME="name"> <INPUT TYPE="text" NAME="id"> <input type="file" name="imagefile"/> * <input type="file" name="zip"/> </FORM> * * @param path * 上传路径(注:避免使用localhost或127.0.0.1这样的路径测试,因为它会指向手机模拟器,你可以使用http://www.xxx.cn或http://192.168.1.10:8080这样的路径测试) * @param params 请求参数 key为参数名,value为参数值 * @param files 上传文件 */ public static boolean post(String path, Map<String, String> params, FormFile[] files) throws Exception { final String BOUNDARY = "---------------------------7da2137580612"; // 数据分隔线 final String endline = "--" + BOUNDARY + "--\r\n"; // 数据结束标志 int fileDataLength = 0; for (FormFile uploadFile : files) { // 得到文件类型数据的总长度 StringBuilder fileExplain = new StringBuilder(); fileExplain.append("--"); fileExplain.append(BOUNDARY); fileExplain.append("\r\n"); fileExplain.append( "Content-Disposition: form-data;name=\"" + uploadFile.getParameterName() + "\";filename=\"" + uploadFile.getFilname() + "\"\r\n"); fileExplain.append("Content-Type: " + uploadFile.getContentType() + "\r\n\r\n"); fileExplain.append("\r\n"); fileDataLength += fileExplain.length(); if (uploadFile.getInStream() != null) { fileDataLength += uploadFile.getFile().length(); } else { fileDataLength += uploadFile.getData().length; } } StringBuilder textEntity = new StringBuilder(); for (Map.Entry<String, String> entry : params.entrySet()) { // 构造文本类型参数的实体数据 textEntity.append("--"); textEntity.append(BOUNDARY); textEntity.append("\r\n"); textEntity.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"\r\n\r\n"); textEntity.append(entry.getValue()); textEntity.append("\r\n"); } // 计算传输给服务器的实体数据总长度 int dataLength = textEntity.toString().getBytes().length + fileDataLength + endline.getBytes().length; URL url = new URL(path); int port = url.getPort() == -1 ? 80 : url.getPort(); Socket socket = new Socket(InetAddress.getByName(url.getHost()), port); OutputStream outStream = socket.getOutputStream(); // 下面完成HTTP请求头的发送 String requestmethod = "POST " + url.getPath() + " HTTP/1.1\r\n"; outStream.write(requestmethod.getBytes()); String accept = "Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\n"; outStream.write(accept.getBytes()); String language = "Accept-Language: zh-CN\r\n"; outStream.write(language.getBytes()); String contenttype = "Content-Type: multipart/form-data; boundary=" + BOUNDARY + "\r\n"; outStream.write(contenttype.getBytes()); String contentlength = "Content-Length: " + dataLength + "\r\n"; outStream.write(contentlength.getBytes()); String alive = "Connection: Keep-Alive\r\n"; outStream.write(alive.getBytes()); String host = "Host: " + url.getHost() + ":" + port + "\r\n"; outStream.write(host.getBytes()); // 写完HTTP请求头后根据HTTP协议再写一个回车换行 outStream.write("\r\n".getBytes()); // 把所有文本类型的实体数据发送出来 outStream.write(textEntity.toString().getBytes()); // 把所有文件类型的实体数据发送出来 for (FormFile uploadFile : files) { StringBuilder fileEntity = new StringBuilder(); fileEntity.append("--"); fileEntity.append(BOUNDARY); fileEntity.append("\r\n"); fileEntity.append( "Content-Disposition: form-data;name=\"" + uploadFile.getParameterName() + "\";filename=\"" + uploadFile.getFilname() + "\"\r\n"); fileEntity.append("Content-Type: " + uploadFile.getContentType() + "\r\n\r\n"); outStream.write(fileEntity.toString().getBytes()); if (uploadFile.getInStream() != null) { byte[] buffer = new byte[1024]; int len = 0; while ((len = uploadFile.getInStream().read(buffer, 0, 1024)) != -1) { outStream.write(buffer, 0, len); } uploadFile.getInStream().close(); } else { outStream.write(uploadFile.getData(), 0, uploadFile.getData().length); } outStream.write("\r\n".getBytes()); } // 下面发送数据结束标志,表示数据已经结束 outStream.write(endline.getBytes()); BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); if (reader.readLine().indexOf("200") == -1) { // 读取web服务器返回的数据,判断请求码是否为200,如果不是200,代表请求失败 return false; } outStream.flush(); outStream.close(); reader.close(); socket.close(); return true; }