通过表单上传视频

通过表单向WEB服务器上传视频通过表单向WEB服务器上传文件必须给表单设置enctype属性且其值为multipart/form-data即<form action="/videoweb/video/manage.do" method="post" enctype="multipart/form-data"></form>通过HttpWatch查看浏览器生成的Http协议注意协议的头字段的Content-Type:multipart/form-data并且在实体数据中各项参数用分割线隔开但在原来提交文本数据的时候为Content-Type:application/x-www-form-urlencoded//业务bean,描述被上传视频的各项属性.get()和set()方法此处省略package cn.itcast.utils;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.InputStream;public class FormFile {private byte[] data;//上传文件的数据private InputStream inStream;private File file;private String filname;private String parameterName;//请求参数名称private String contentType = "application/octet-stream";//内容类型public FormFile(String filname, byte[] data, String parameterName, String contentType) {this.data = data;this.filname = filname;this.parameterName = parameterName;if(contentType!=null) this.contentType = contentType;}public FormFile(File file, String parameterName, String contentType) {this.filname = file.getName();this.parameterName = parameterName;this.file = file;try {this.inStream = new FileInputStream(file);} catch (FileNotFoundException e) {e.printStackTrace();}if(contentType!=null) this.contentType = contentType;}}核心代码:package cn.itcast.utils;import java.io.BufferedReader;import java.io.ByteArrayOutputStream;import java.io.DataOutputStream;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.HttpURLConnection;import java.net.InetAddress;import java.net.Socket;import java.net.URL;import java.net.URLEncoder;import java.util.ArrayList;import java.util.List;import java.util.Map;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.HttpClient;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicNameValuePair;public class SocketHttpRequester {// 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)//@param params 请求参数 key为参数名,value为参数值//      @param file 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");         fileDataLength += fileExplain.length();        if(uploadFile.getInStream()!=null){        fileDataLength += uploadFile.getFile().length();     }else{     fileDataLength += uploadFile.getData().length;     }        fileDataLength += "\r\n".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();        //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;}// 提交数据到服务器// @param path 上传路径// @param params 请求参数 key为参数名,value为参数值// @param file 上传文件public static boolean post(String path, Map<String, String> params, FormFile file) throws Exception{   return post(path, params, new FormFile[]{file});}//提交数据到服务器//@param path 上传路径//@param params 请求参数 key为参数名,value为参数值//@param encode 编码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, encode);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 readStream(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 readStream(conn.getInputStream());}return null;}//读取流public static byte[] readStream(InputStream inStream) throws Exception{ByteArrayOutputStream outSteam = new ByteArrayOutputStream();byte[] buffer = new byte[1024];int len = -1;while( (len=inStream.read(buffer)) != -1){outSteam.write(buffer, 0, len);}outSteam.close();inStream.close();return outSteam.toByteArray();}}