Android uploads files over http

Generally, the maximum size of files uploaded over http is 2 MB, which is suitable for uploading files smaller than 2 MB [Code] [Java] code 001 import java. io. file; 002 import java. io. fileInputStream; 003 import java. io. fileNotFoundException; 004 import java. io. inputStream; 005006/** 007 * uploaded file 008 */009 public class FormFile {010/** uploaded file data */011 private byte [] data; 012 private InputStream inStream; 013 private File file; 014/** File name */015 private String filname; 016/** request parameter name */017 private String ParameterName; 018/** content type */019 private String contentType = "application/octet-stream "; 020/** 021*022 * @ param filname file name 023 * @ param data file data uploaded 024 * @ param parameterName parameter 025 * @ param contentType content type 026 */027 public formFile (String filname, byte [] data, String parameterName, String contentType) {028this. data = data; 029this. filname = filname; 030this. parameterName = parameterName; 031if (cont EntType! = Null) this. contentType = contentType; 032} 033/** 034*035 * @ param filname file name 036 * @ param file the uploaded file 037 * @ param parameterName parameter 038 * @ param contentType content type 039 */040 public FormFile (String filname, file file, String parameterName, String contentType) {041this. filname = filname; 042this. parameterName = parameterName; 043this. file = file; 044try {045this. inStream = new FileInputStream (file); 046} ca Tch (FileNotFoundException e) {047e. printStackTrace (); 048} 049if (contentType! = Null) this. contentType = contentType; 050} 051052 public File getFile () {053 return file; 054} 055056 public InputStream getInStream () {057 return inStream; 058} 059060 public byte [] getData () {061 return data; 062} 063064 public String getFilname () {065 return filname; 066} 067068 public void setFilname (String filname) {069this. filname = filname; 070} 071072 public String getParameterName () {073 return para MeterName; 074} 075076 public void setParameterName (String parameterName) {077this. parameterName = parameterName; 078} 079080 public String getContentType () {081 return contentType; 082} 083084 public void setContentType (String contentType) {085this. contentType = contentType; 086} 087088} 089090/** 091 * submit data directly to the server over HTTP, as shown in the following form submission function: 092 * <form method = post action = "http: // 192.168.0.200: 8080/ssi/fileload/t Est. do "enctype =" multipart/form-data "> 093 <input type =" text "NAME =" name "> 094 <input type =" text "NAME =" id "> 095 <input type = "file" name = "imagefile"/> 096 <input type = "file" name = "zip"/> 097 </FORM> 098 * @ param path upload path (note: avoid using a path test like localhost or 127.0.0.1 because it will point to the phone simulator and you can use a path test like http://www.xxx.cn or http: // 192.168.1.10: 8080) 099 * @ param params the request parameter key is the parameter name, and the value is the parameter value 100 * @ param file Upload file 101 */102 public static boole An post (String path, Map <String, String> params, FormFile [] files) throws Exception {103 final String BOUNDARY = "------------------------- 7da1_7580612 "; // data separation line 104 final String endline = "--" + BOUNDARY + "-- \ r \ n"; // data end mark 1050000int fileDataLength = 0; mandatory for (FormFile uploadFile: files) {// obtain the total length of the file type data 108 StringBuilder fileExplain = new StringBuilder (); optional fileExplain. append ("--"); 110 fileExpla In. append (BOUNDARY); 111fileExplain. append ("\ r \ n"); Specify fileexplain. append ("Content-Disposition: form-data; name = \" "+ uploadFile. getParameterName () + "\"; filename = \ "" + uploadFile. getFilname () + "\" \ r \ n "); 113fileExplain. append ("Content-Type:" + uploadFile. getContentType () + "\ r \ n"); 114fileExplain. append ("\ r \ n"); 115 fileDataLength + = fileExplain. length (); when if (uploadFile. getInStream ()! = Null) {117 fileDataLength + = uploadFile. getFile (). length (); 118} else {119 fileDataLength + = uploadFile. getData (). length; 120} 121} 122 StringBuilder textEntity = new StringBuilder (); 123for (Map. entry <String, String> entry: params. entrySet () {// construct object data of the text type parameter 124textEntity. append ("--"); 125textEntity. append (BOUNDARY); 126textEntity. append ("\ r \ n"); extends textentity. append ("Content-Disposition: form-data; nam E = \ "" + entry. getKey () + "\" \ r \ n "); 128textEntity. append (entry. getValue (); 129textEntity. append ("\ r \ n"); 130} 131 // calculate the total length of the object data transmitted to the server: 132int dataLength = textEntity. toString (). getBytes (). length + fileDataLength + endline. getBytes (). length; 133134URL url = new URL (path); 135int port = url. getPort () =-1? 80: url. getPort (); 136 Socket socket = new Socket (InetAddress. getByName (url. getHost (), port); 137 OutputStream outStream = socket. getOutputStream (); 138 // The HTTP request header is sent below 139 String requestmethod = "POST" + url. getPath () + "HTTP/1.1 \ r \ n"; 140outStream. write (requestmethod. getBytes (); 141 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 "; 142outStream. write (accept. getBytes (); 143 String language = "Accept-Language: zh-CN \ r \ n"; 144outStream. write (language. getBytes (); 145 String contenttype = "Content-Type: multipart/form-data; boundary =" + BOUNDARY + "\ r \ n "; 146outStream. write (contenttype. getBytes (); 147 String contentlength = "Content-Length:" + dataLength + "\ r \ n"; 148outStream. write (contentlength. getBytes (); 149 String alive = "Connection: Keep-Alive \ r \ n"; 150outStream. write (alive. getBytes (); 151 String host = "Host:" + url. getHost () + ":" + port + "\ r \ n"; 152outStream. write (host. getBytes (); 153 // After writing the HTTP Request Header, write another carriage return line 154outStream Based on the HTTP protocol. write ("\ r \ n ". getBy Tes (); 155 // send object data of all text types to 156outStream. write (textEntity. toString (). getBytes (); 157 // send object data of all file types to 158for (FormFile uploadFile: files) {159 StringBuilder fileEntity = new StringBuilder (); 160fileEntity. append ("--"); 161fileEntity. append (BOUNDARY); 162fileEntity. append ("\ r \ n"); 163fileEntity. append ("Content-Disposition: form-data; name = \" "+ uploadFile. getParameterName () + "\"; filename = \ "" + uploadFil E. getFilname () + "\" \ r \ n "); 164fileEntity. append ("Content-Type:" + uploadFile. getContentType () + "\ r \ n"); 165outStream. write (fileEntity. toString (). getBytes (); 166if (uploadFile. getInStream ()! = Null) {167 byte [] buffer = new byte [1024]; 168int len = 0; 169 while (len = uploadFile. getInStream (). read (buffer ))! =-1) {170outStream. write (buffer, 0, len); 171} 172uploadFile. getInStream (). close (); 173} else {174outStream. write (uploadFile. getData (), 0, uploadFile. getData (). length); 175} 176outStream. write ("\ r \ n ". getBytes (); 177} 178 // The End mark of the sent data, indicating that the data has ended 179outStream. write (endline. getBytes (); 180181 BufferedReader reader = new BufferedReader (newInputStreamReader (socket. getInputStream (); 182if (reader. readLine (). indexOf ("200") =-1) {// read the data returned by the web server and determine whether the request code is 200. If it is not 200, the request fails. 183 return false; 184} 185outStream. flush (); 186outStream. close (); 187reader. close (); 188socket. close (); 189 return true; 190} 191192/** 193 * submit data to the server 194 * @ param path upload path (Note: Do not test using a path such as localhost or 127.0.0.1, because it will point to the phone simulator, you can test using a path like http://www.xxx.cn or http: // 192.168.1.10: 8080) 195 * @ param params request parameter key for the parameter name, value is the parameter value 196 * @ param file Upload file 197 */198 public static boolean post (String path, Map <String, String> params, FormFile file) throws Exception {199 return post (path, params, new FormFile [] {file}); 200}