Android上传文件到服务器的方法

package com.ljq.utils;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.InputStream;/** * 上传文件 */public class FormFile { /* 上传文件的数据 */ private byte[] data; private InputStream inStream; private File file; /* 文件名称 */ private String filname; /* 请求参数名称*/ private String parameterName; /* 内容类型 */ private String contentType = "application/octet-stream";  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(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; } }

package com.ljq.utils;import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.InetAddress;import java.net.Socket;import java.net.URL;import java.util.Map;/** * 上传文件到服务器 *  * @author Administrator * */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://192.168.1.101:8083/upload/servlet/UploadServlet" 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，因为它会指向手机模拟器，你可以使用http://www.iteye.cn或http://192.168.1.101:8083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");    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()) {//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();  //下面完成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(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.itcast.cn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 boolean post(String path, Map<String, String> params, FormFile file) throws Exception{  return post(path, params, new FormFile[]{file}); }}

package com.ljq.activity;import java.io.File;import java.util.HashMap;import java.util.Map;import android.app.Activity;import android.os.Bundle;import android.os.Environment;import android.os.Handler;import android.util.Log;import com.ljq.utils.FormFile;import com.ljq.utils.SocketHttpRequester;public class MainActivity extends Activity { private File file; private Handler handler; private static final String TAG="MainActivity"; @Override public void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.main);  Log.i(TAG, "onCreate");    file = new File(Environment.getExternalStorageDirectory(), "123.rmvb");  Log.i(TAG, "照片文件是否存在："+file);  handler=new Handler();  handler.post(runnable); }  Runnable runnable=new Runnable() {   public void run() {   Log.i(TAG, "runnable run");   uploadFile(file);   handler.postDelayed(runnable, 5000);  }  };  /**  * 上传图片到服务器  *   * @param imageFile 包含路径  */ public void uploadFile(File imageFile) {  Log.i(TAG, "upload start");  try {   String requestUrl = "http://192.168.1.101:8083/upload/upload/execute.do";   //请求普通信息   Map<String, String> params = new HashMap<String, String>();   params.put("username", "张三");   params.put("pwd", "zhangsan");   params.put("age", "21");   params.put("fileName", imageFile.getName());   //上传文件   FormFile formfile = new FormFile(imageFile.getName(), imageFile, "image", "application/octet-stream");      SocketHttpRequester.post(requestUrl, params, formfile);   Log.i(TAG, "upload success");  } catch (Exception e) {   Log.i(TAG, "upload error");   e.printStackTrace();  }  Log.i(TAG, "upload end"); }}

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.ljq.activity" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".MainActivity"  android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="4" /> <uses-permission android:name="android.permission.INTERNET" /> </manifest>