android之网络文件上传下载源码.doc

android之网络文件上传下载源码效果图：Main.xml： AndroidManifest.xml: 加上 FromFile.javapackage ;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.InputStream;public class FormFile private bytedata;private InputStream inStream;private File file;private String filename;private String parameterName;private String contentType = application/octet-stream;public FormFile(String filename, byte data, String parameterName, String contentType) this.data = data;this.filename = filename;this.parameterName = parameterName;if(contentType!=null)this.contentType = contentType;public FormFile(String filename,File file,String parameterName,String contentType)this.filename = filename;this.parameterName = parameterName;this.file = file;trythis.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 getFilename()return filename;public void setFilename(String filename)this.filename = filename;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;FileUtils.java:package ;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import android.os.Environment;public class FileUtils private String SDPATH;public String getSDPATH()return SDPATH;public void setSDPATH(String sDPATH)SDPATH = sDPATH;/获取SD卡目录public FileUtils()SDPATH = Environment.getExternalStorageDirectory() + /;System.out.println(sd cards directory path is : + SDPATH);/在SD卡上创建文件public File createSDFile(String fileName)throws IOExceptionFile file = new File(SDPATH + fileName);file.createNewFile();return file;/在SD卡上创建目录public File createSDDir(String dirName)File dir = new File(SDPATH + dirName);System.out.println(storge devices state : +Environment.getExternalStorageState();if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)System.out.println(this directory real path is:+dir.getAbsolutePath();System.out.println(the result of making directory:+dir.mkdir();return dir;/判断SD卡的文件夹是否存在public boolean isFileExist(String fileName)File file = new File(SDPATH + fileName);return file.exists();/将一个inputStream里面的数据写入到SD卡中public File write2SDFromInput(String path,String fileName,InputStream inputStream)File file = null;OutputStream output = null;tryFile tempf = createSDDir(path);System.out.println(directory in the sd card: + tempf.exists();file = createSDFile(path + fileName);output = new FileOutputStream(file);byte buffer = new byte4*1024;int length = 0;while(length = inputStream.read(buffer) != -1)output.write(buffer, 0, length);System.out.println(length);output.flush();catch(FileNotFoundException e)e.printStackTrace();catch(IOException e)e.printStackTrace();finallytryoutput.close();catch(IOException e)e.printStackTrace();return file;HttpDownloader.java:package ;import java.io.BufferedReader;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import .HttpURLConnection;import .MalformedURLException;import .URL;public class HttpDownloader private URL url = null;/* * 下载步骤： * 1.创建一个URL对象 * 2.通过URL对象，创建一个HttpURLConnection对象 * 3.得到InputStream * 4.从InputStream当中读取数据 */public String download(String urlStr)StringBuffer sb = new StringBuffer();String line = null;BufferedReader buffer = null;tryurl = new URL(urlStr);HttpURLConnection urlConn = (HttpURLConnection)url.openConnection();buffer = new BufferedReader(new InputStreamReader(urlConn.getInputStream();while(line = buffer.readLine() != null)sb.append(line);catch(Exception e)e.printStackTrace();finallytrybuffer.close();catch(IOException e)e.printStackTrace();return sb.toString();public int downFile(String urlStr, String path, String fileName)InputStream inputStream = null;tryFileUtils fileUtils = new FileUtils();if(fileUtils.isFileExist(path + fileName)return 1;elseinputStream = getInputStreamFromURL(urlStr);File resultFile = fileUtils.write2SDFromInput(path, fileName, inputStream);if(resultFile = null)return -1;catch(Exception e)e.printStackTrace();return -1;finallytryinputStream.close();catch(IOException e)e.printStackTrace();return 0;public InputStream getInputStreamFromURL(String urlStr)HttpURLConnection urlConn = null;InputStream inputStream = null;tryurl = new URL(urlStr);urlConn = (HttpURLConnection)url.openConnection();inputStream = urlConn.getInputStream();catch(MalformedURLException e)e.printStackTrace();catch(IOException e)e.printStackTrace();return inputStream;HttpUploader.java:package ;import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.OutputStream;import .InetAddress;import .Socket;import .URL;import java.util.Map;public class HttpUploader public static boolean post(String path, Map params, FormFile files)throws Exceptionfinal String BOUNDARY = -7da2137580612;final String endline = BOUNDARY + -rn;int fileDataLength = 0;for(FormFile uploadFile : files)StringBuilder fileExplain = new StringBuilder();fileExplain.append(-);fileExplain.append(BOUNDARY);fileExplain.append(rn);fileExplain.append(Content-Disposition:form-data;name=+ uploadFile.getParameterName()+;filename=+ uploadFile.getFilename() + rn);fileExplain.append(Content-Type: + uploadFile.getContentType()+rnrn);fileExplain.append(rn);fileDataLength += fileExplain.length();if(uploadFile.getInStream()!=null)fileDataLength += uploadFile.getFile().length();elsefileDataLength += uploadFile.getData().length;/*StringBuilder textEntity = new StringBuilder();for(Map.Entry entry : params.entrySet()textEntity.append(-);textEntity.append(BOUNDARY);textEntity.append(rn);textEntity.append(Content-Disposition: form-data; name=+ entry.getKey() + rnrn);textEntity.append(entry.getValue();textEntity.append(rn);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();String requestmethod = POST + url.getPath()+ HTTP/1.1rn; outStream.write(requestmethod.getBytes();String accept = Accept:image/gif,image/jpeg,image/pjpeg,application/x-shockwave-flash,application/xaml+xml,application/vnd.ms-xpdocument,application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*rn;outStream.write(accept.getBytes();String language = Accept-Language: zh-CNrn;outStream.write(language.getBytes();String contenttype = Content-Type: multipart/form-data; boundary=+ BOUNDARY+ rn;outStream.write(contenttype.getBytes();String contentlength = Content-Length: + fileDataLength + rn;/String contentlength = Content-Length: + dataLength + rn;outStream.write(contentlength.getBytes();String alive = Connection: Keep-Alivern;outStream.write(alive.getBytes();String host = Host: + url.getHost() +:+ port +rn;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(rn.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(rn); fileEntity.append(Content-Disposition: form-data;name=+ uploadFile.getParameterName()+;filename=+ uploadFile.getFilename() + rn); fileEntity.append(Content-Type: + uploadFile.getContentType()+rnrn); outStream.write(fileEntity.toString().getBytes(); if(uploadFile.getInStream()!=null) byte buffer = new byte1024; 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(rn.getBytes(); outStream.write(rn.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或这样的路径测试，因为它会指向手机模拟器，你可以使用或0:8080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 params, FormFile file) throws Exceptionreturn post(path, params, new FormFilefile);HttpclientActivity.java:package ;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 android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;public class HttpclientActivity extends Activity private EditText downloadText;private Button downloadButton;private EditText uploadfileText;private Button uploadButton;private File file;private Handler handler;private static final String TAG=MainActivity; /* Called when the activity is first created. */ Override public void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState); setContentView(R.layout.main); downloadText = (EditText)findViewById(R.id.downloadfile); downloadButton = (Button)findViewById(R.id.download); downloadButton.setOnClickListener(new DownloadListener(); uploadfileText = (EditText)findViewById(R.id.uploadfile); uploadButton = (Button)findViewById(R.id.upload); uploadButton.setOnClickLi