public class HttpRequester { /** * 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 actionUrl 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. 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 file 上传文件 */ public static String post(String actionUrl, Map<String, String> params, FormFile[] files) { try { String BOUNDARY = "---------7d4a6d158c9"; //数据分隔线 String MULTIPART_FORM_DATA = "multipart/form-data"; URL url = new URL(actionUrl); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5* 1000); conn.setDoInput(true);//允许输入 conn.setDoOutput(true);//允许输出 conn.setUseCaches(false);//不使用Cache conn.setRequestMethod("POST"); conn.setRequestProperty("Connection", "Keep-Alive"); conn.setRequestProperty("Charset", "UTF-8"); conn.setRequestProperty("Content-Type", MULTIPART_FORM_DATA + "; boundary=" + BOUNDARY); StringBuilder sb = new StringBuilder(); for (Map.Entry<String, String> entry : params.entrySet()) {//构建表单 字段内容 sb.append("--"); sb.append(BOUNDARY); sb.append("\r\n"); sb.append("Content-Disposition: form-data; name=\""+ entry.getKey() + "\"\r\n\r\n"); sb.append(entry.getValue()); sb.append("\r\n"); } DataOutputStream outStream = new DataOutputStream(conn.getOutputStream()); outStream.write(sb.toString().getBytes());//发送表单字段数据 for(FormFile file : files){//发送文件数据 StringBuilder split = new StringBuilder(); split.append("--"); split.append(BOUNDARY); split.append("\r\n"); split.append("Content-Disposition: form-data;name=\""+ file.getFormname()+"\";filename=\""+ file.getFilname() + "\"\r\n"); split.append("Content-Type: "+ file.getContentType()+"\r\n\r\n"); outStream.write(split.toString().getBytes()); if(file.getInStream()!=null){ byte[] buffer = new byte[1024]; int len = 0; while((len = file.getInStream().read(buffer))!=-1){ outStream.write(buffer, 0, len); } file.getInStream().close(); }else{ outStream.write(file.getData(), 0, file.getData().length); } outStream.write("\r\n".getBytes()); } byte[] end_data = ("--" + BOUNDARY + "--\r\n").getBytes();//数据结 束标志 outStream.write(end_data); outStream.flush(); int cah = conn.getResponseCode(); if (cah != 200) throw new RuntimeException("请求url 失败"); InputStream is = conn.getInputStream(); int ch; StringBuilder b = new StringBuilder(); while( (ch = is.read()) != -1 ){ b.append((char)ch); } outStream.close(); conn.disconnect(); return b.toString(); } catch (Exception e) { throw new RuntimeException(e); } } /** * 提交数据到服务器 * @param actionUrl 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. 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 file 上传文件 */ public static String post(String actionUrl, Map<String, String> params, FormFile file) { return post(actionUrl, params, new FormFile[]{file}); } public static byte[] postFromHttpClient(String path, Map<String, String> params, String encode) throws Exception{ List<NameValuePair> formparams = new ArrayList<NameValuePair>();// 用 于存放请求参数 for(Map.Entry<String, String> entry : params.entrySet()){ formparams.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); } UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, "UTF-8"); HttpPost httppost = new HttpPost(path); httppost.setEntity(entity); HttpClient httpclient = new DefaultHttpClient();//看作是浏览器 HttpResponse response = httpclient.execute(httppost);//发送post 请求 return StreamTool.readInputStream(response.getEntity().getContent()); } /** * 发送请求 * @param path 请求路径 * @param params 请求参数key 为参数名称value 为参数值 * @param encode 请求参数的编码 */ public static byte[] post(String path, Map<String, String> params, String encode) throws Exception{ //String params = "method=save&name="+ URLEncoder.encode(" 老毕", "UTF-8")+ "&age=28&";//需要发送的参数 StringBuilder parambuilder = new StringBuilder(""); if(params!=null && !params.isEmpty()){ for(Map.Entry<String, String> entry : params.entrySet()){ parambuilder.append(entry.getKey()).append("=") .append(URLEncoder.encode(entry.getValue(), encode)).append("&"); } parambuilder.deleteCharAt(parambuilder.length()-1); } byte[] data = parambuilder.toString().getBytes(); URL url = new URL(path); HttpURLConnection conn = (HttpURLConnection)url.openConnection(); conn.setDoOutput(true);//允许对外发送请求参数 conn.setUseCaches(false);//不进行缓存 conn.setConnectTimeout(5 * 1000); conn.setRequestMethod("POST"); //下面设置http 请求头 conn.setRequestProperty("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, */*"); conn.setRequestProperty("Accept-Language", "zh-CN"); conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)"); conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); conn.setRequestProperty("Content-Length", String.valueOf(data.length)); conn.setRequestProperty("Connection", "Keep-Alive"); //发送参数 DataOutputStream outStream = new DataOutputStream(conn.getOutputStream()); outStream.write(data);//把参数发送出去 outStream.flush(); outStream.close(); if(conn.getResponseCode()==200){ return StreamTool.readInputStream(conn.getInputStream()); } return null; } } |
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