Android用http协议上传文件

http协议上传文件一般最大是2M，比较适合上传小于两M的文件

 

[代码] [Java]代码

 

001import java.io.File; 

002import java.io.FileInputStream; 

003import java.io.FileNotFoundException; 

004import java.io.InputStream; 

005

006/**

007* 上传的文件

008*/ 

009public class FormFile { 

010/** 上传文件的数据 */ 

011private byte[] data; 

012private InputStream inStream; 

013private File file; 

014/** 文件名称 */ 

015private String filname; 

016/** 请求参数名称*/ 

017private String parameterName; 

018/** 内容类型 */ 

019private String contentType = "application/octet-stream"; 

020/**

021*

022* @param filname 文件名称

023* @param data 上传的文件数据

024* @param parameterName 参数

025* @param contentType 内容类型

026*/ 

027public FormFile(String filname, byte[] data, String parameterName, String contentType) { 

028this.data = data; 

029this.filname = filname; 

030this.parameterName = parameterName; 

031if(contentType!=null) this.contentType = contentType; 

032}

033/**

034*

035* @param filname 文件名

036* @param file 上传的文件

037* @param parameterName 参数

038* @param contentType 内容内容类型

039*/ 

040public 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} catch (FileNotFoundException e) { 

047e.printStackTrace();

048}

049if(contentType!=null) this.contentType = contentType; 

050}

051

052public File getFile() { 

053return file; 

054}

055

056public InputStream getInStream() { 

057return inStream; 

058}

059

060public byte[] getData() { 

061return data; 

062}

063

064public String getFilname() { 

065return filname; 

066}

067

068public void setFilname(String filname) { 

069this.filname = filname; 

070}

071

072public String getParameterName() { 

073return parameterName; 

074}

075

076public void setParameterName(String parameterName) { 

077this.parameterName = parameterName; 

078}

079

080public String getContentType() { 

081return contentType; 

082}

083

084public void setContentType(String contentType) { 

085this.contentType = contentType; 

086}

087

088}

089

090/**

091* 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:

092* <FORM METHOD=POST ACTION="http://192.168.0.200:8080/ssi/fileload/test.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 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)

099* @param params 请求参数 key为参数名,value为参数值

100* @param file 上传文件

101*/ 

102public static boolean post(String path, Map<String, String> params, FormFile[] files) throws Exception{ 

103final String BOUNDARY = "---------------------------7da2137580612"; //数据分隔线 

104final String endline = "--" + BOUNDARY + "-- ";//数据结束标志 

105

106int fileDataLength = 0; 

107for(FormFile uploadFile : files){//得到文件类型数据的总长度 

108StringBuilder fileExplain = new StringBuilder(); 

109fileExplain.append("--"); 

110fileExplain.append(BOUNDARY);

111fileExplain.append(" ");

112fileExplain.append("Content-Disposition: form-data;name=""+ uploadFile.getParameterName()+"";filename=""+ uploadFile.getFilname() + "" ");

113fileExplain.append("Content-Type: "+ uploadFile.getContentType()+" "); 

114fileExplain.append(" ");

115fileDataLength += fileExplain.length(); 

116if(uploadFile.getInStream()!=null){ 

117fileDataLength += uploadFile.getFile().length(); 

118}else{

119fileDataLength += uploadFile.getData().length; 

120}

121}

122StringBuilder textEntity = new StringBuilder(); 

123for (Map.Entry<String, String> entry : params.entrySet()) {//构造文本类型参数的实体数据 

124textEntity.append("--"); 

125textEntity.append(BOUNDARY);

126textEntity.append(" ");

127textEntity.append("Content-Disposition: form-data; name=""+ entry.getKey() + "" "); 

128textEntity.append(entry.getValue());

129textEntity.append(" ");

130}

131//计算传输给服务器的实体数据总长度 

132int dataLength = textEntity.toString().getBytes().length + fileDataLength + endline.getBytes().length; 

133

134URL url = new URL(path); 

135int port = url.getPort()==-1 ? 80 : url.getPort(); 

136Socket socket = new Socket(InetAddress.getByName(url.getHost()), port); 

137OutputStream outStream = socket.getOutputStream(); 

138//下面完成HTTP请求头的发送 

139String requestmethod = "POST "+ url.getPath()+" HTTP/1.1 "; 

140outStream.write(requestmethod.getBytes());

141String 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, */* ";

142outStream.write(accept.getBytes());

143String language = "Accept-Language: zh-CN "; 

144outStream.write(language.getBytes());

145String contenttype = "Content-Type: multipart/form-data; boundary="+ BOUNDARY+ " "; 

146outStream.write(contenttype.getBytes());

147String contentlength = "Content-Length: "+ dataLength + " "; 

148outStream.write(contentlength.getBytes());

149String alive = "Connection: Keep-Alive "; 

150outStream.write(alive.getBytes());

151String host = "Host: "+ url.getHost() +":"+ port +" "; 

152outStream.write(host.getBytes());

153//写完HTTP请求头后根据HTTP协议再写一个回车换行 

154outStream.write(" ".getBytes());

155//把所有文本类型的实体数据发送出来 

156outStream.write(textEntity.toString().getBytes());

157//把所有文件类型的实体数据发送出来 

158for(FormFile uploadFile : files){ 

159StringBuilder fileEntity = new StringBuilder(); 

160fileEntity.append("--"); 

161fileEntity.append(BOUNDARY);

162fileEntity.append(" ");

163fileEntity.append("Content-Disposition: form-data;name=""+ uploadFile.getParameterName()+"";filename=""+ uploadFile.getFilname() + "" ");

164fileEntity.append("Content-Type: "+ uploadFile.getContentType()+" "); 

165outStream.write(fileEntity.toString().getBytes());

166if(uploadFile.getInStream()!=null){ 

167byte[] buffer = new byte[1024]; 

168int len = 0; 

169while((len = uploadFile.getInStream().read(buffer, 0,1024))!=-1){ 

170outStream.write(buffer, 0, len); 

171}

172uploadFile.getInStream().close();

173}else{

174outStream.write(uploadFile.getData(), 0, uploadFile.getData().length); 

175}

176outStream.write(" ".getBytes());

177}

178//下面发送数据结束标志，表示数据已经结束 

179outStream.write(endline.getBytes());

180

181BufferedReader reader = new BufferedReader(newInputStreamReader(socket.getInputStream())); 

182if(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

183return false; 

184}

185outStream.flush();

186outStream.close();

187reader.close();

188socket.close();

189return true; 

190}

191

192/**

193* 提交数据到服务器 

194* @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)

195* @param params 请求参数 key为参数名,value为参数值 

196* @param file 上传文件 

197*/ 

198public static boolean post(String path, Map<String, String> params, FormFile file) throws Exception{ 

199return post(path, params, new FormFile[]{file}); 

200}