Android使用http協議實現文件的上傳

fmms 12年前發布 | 106K 次閱讀 Android Android開發移動開發
http協議上傳文件一般最大是2M，比較適合上傳小于兩M的文件
import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.InputStream;
/**

上傳的文件 
/

public class FormFile {

/** 上傳文件的數據 /

private byte[] data;

private InputStream inStream;

private File file;

/ 文件名稱 */

private String filname;

/ 請求參數名稱/

private String parameterName;

/** 內容類型 /

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

/** 

@param filname 文件名稱 
@param data 上傳的文件數據 
@param parameterName 參數 
@param contentType 內容類型 
*/

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;

}

/** 

@param filname 文件名 
@param file 上傳的文件 
@param parameterName 參數 
@param contentType 內容內容類型 
*/

public FormFile(String filname, File file, String parameterName, String contentType) {

this.filname = filname;

this.parameterName = parameterName;

this.file = file;

try {

this.inStream = new FileInputStream(file);

} catch (FileNotFoundException e) {

e.printStackTrace();

}

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

}  



public File getFile() {

    return file;

}
public InputStream getInStream() {

    return inStream;

}
public byte[] getData() {

    return data;

}
public String getFilname() {

    return filname;

}
public void setFilname(String filname) {

    this.filname = filname;

}
public String getParameterName() {

    return parameterName;

}
public void setParameterName(String parameterName) {

    this.parameterName = parameterName;

}
public String getContentType() {

    return contentType;

}
public void setContentType(String contentType) {

    this.contentType = contentType;

}
}
/**

直接通過HTTP協議提交數據到服務器,實現如下面表單提交功能: 
<FORM METHOD=POST ACTION="http://192.168.0.200:8080/ssi/fileload/test.do&quot; 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 上傳路徑(注：避免使用localhost或127.0.0.1這樣的路徑測試，因為它會指向手機模擬器，你可以使用http://www.xxx.cn或http://192.168.1.10:8080這樣的路徑測試) 
@param params 請求參數 key為參數名,value為參數值 
@param file 上傳文件 
*/

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

 final String BOUNDARY = "---------------------------7da2137580612"; //數據分隔線

 final String endline = "--" + BOUNDARY + "--\r\n";//數據結束標志
int fileDataLength = 0;

 for(FormFile uploadFile : files){//得到文件類型數據的總長度

 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()) {//構造文本類型參數的實體數據

 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");

 }

 //計算傳輸給服務器的實體數據總長度

 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請求頭的發送

 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());

 //寫完HTTP請求頭后根據HTTP協議再寫一個回車換行

 outStream.write("\r\n".getBytes());

 //把所有文本類型的實體數據發送出來

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

 //把所有文件類型的實體數據發送出來

 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());

 }

 //下面發送數據結束標志，表示數據已經結束

 outStream.write(endline.getBytes());
BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));

 if(reader.readLine().indexOf("200")==-1){//讀取web服務器返回的數據，判斷請求碼是否為200，如果不是200，代表請求失敗

 return false;

 }

 outStream.flush();

 outStream.close();

 reader.close();

 socket.close();

 return true;

}


/**

提交數據到服務器  
@param path 上傳路徑(注：避免使用localhost或127.0.0.1這樣的路徑測試，因為它會指向手機模擬器，你可以使用http://www.xxx.cn或http://192.168.1.10:8080這樣的路徑測試)   
@param params 請求參數 key為參數名,value為參數值  
@param file 上傳文件

*/

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

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

}  </pre>
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Android Android開發移動開發
Android使用http協議實現文件的上傳

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