J2ME手机本地存储文件的上传，核心代码如下：
package com.mopietek;import javax.microedition.midlet.MIDlet;import javax.microedition.midlet.MIDletStateChangeException;import com.sun.lwuit.Display;public class MainMIDlet extends MIDlet{ private MainPanel panel = null; protected void destroyApp(boolean unconditional) throws MIDletStateChangeException { // TODO Auto-generated method stub } protected void pauseApp() { // TODO Auto-generated method stub } protected void startApp() throws MIDletStateChangeException { Display.init(this); panel = new MainPanel(this); } public void exit(){ try{ destroyApp(false); }catch(MIDletStateChangeException e){ e.printStackTrace(); } this.notifyDestroyed(); }}package com.mopietek;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.Enumeration;import javax.microedition.io.Connector;import javax.microedition.io.HttpConnection;import javax.microedition.io.file.FileConnection;import javax.microedition.io.file.FileSystemRegistry;import com.sun.lwuit.Command;import com.sun.lwuit.Component;import com.sun.lwuit.Container;import com.sun.lwuit.Dialog;import com.sun.lwuit.Form;import com.sun.lwuit.Label;import com.sun.lwuit.List;import com.sun.lwuit.TextArea;import com.sun.lwuit.events.ActionEvent;import com.sun.lwuit.events.ActionListener;import com.sun.lwuit.layouts.BorderLayout;import com.sun.lwuit.list.ListCellRenderer;import com.sun.lwuit.plaf.Border;public class MainPanel implements ActionListener{ private final String UP_DIR = ".."; private final String SEPS_STR = "/"; private final int SEPS_CHAR = '/'; private final String ROOT = "/"; private final String RES_PREFIX = "file://"; private final int BLOCK_SIZE = 256; private final String TEXT_EXT[] = {".TXT",".H",".HPP",".C",".CPPC",".INC"}; private final String IMAGE_EXT[] = {".JPG",".JPEG",".PNG",".GIF"}; private final String WEB_EXT[] = {".HTM",".HTML",".XML",".CSS"}; private final String CHARACTER_CODE = "UTF-8"; private MainMIDlet let = null; //主界面 private Form listForm = null; //内容列表 private List contentList = null; //显示文件用窗体 private Form textForm = null; private TextArea text = null; private Form imageForm = null; private Command cmdExit = null; private Command cmdView = null; //浏览目录/文件 private Command cmdDone = null; //退出浏览文件内容 private Command cmdUpload = null; //上传文件 private IconHelper helper = null; private String currentDir = null; public MainPanel(MainMIDlet mainMIDlet) { let = mainMIDlet; currentDir = ROOT; helper = new IconHelper(); listForm = new Form(); listForm.setLayout(new BorderLayout()); cmdExit = new Command("退出"); cmdView = new Command("浏览"); cmdDone = new Command("返回"); listForm.addCommand(cmdView); listForm.addCommand(cmdExit); listForm.addCommandListener(this); new BrowseThread(currentDir,true).start(); } public void actionPerformed(ActionEvent evt) { Command c = evt.getCommand(); if(c == cmdExit){ let.exit(); }else if(c == cmdView){ if(contentList.size() == 0){ new BrowseThread(ROOT,true).start(); }else{ final String url = ((MyContainer) contentList.getSelectedItem()).name.getText(); if(url.endsWith(SEPS_STR) == true){ new BrowseThread(currentDir + url,true).start(); }else if(url.endsWith(UP_DIR) == true){ backward(); }else{ new BrowseThread(currentDir + url,false).start(); } } }else if(c == cmdDone){ new BrowseThread(currentDir,true).start(); } } private void backward(){ int pos = currentDir.lastIndexOf(SEPS_CHAR, currentDir.length() -2); if(pos != -1){ currentDir = currentDir.substring(0, pos +1); }else{ currentDir = ROOT; } new BrowseThread(currentDir,true).start(); } class MyContainer extends Container{ private Label name; public MyContainer(String source){ name = new Label(source); name.getStyle().setBgTransparency(0); addComponent(name); } } class MyRenderer implements ListCellRenderer{ private Label focus; public MyRenderer(){ focus = new Label(); Border b = Border.createLineBorder(1, 0xff0000); focus.getStyle().setBorder(b); } public Component getListCellRendererComponent(List list, Object value, int index, boolean selected) { return (MyContainer) value; } public Component getListFocusComponent(List list) { return focus; } } class BrowseThread extends Thread{ private String url = null; private boolean isDirectory = false; public BrowseThread(final String _url,final boolean _isDirectory){ url = _url; isDirectory = _isDirectory; } public void run(){ if(isDirectory){ showDir(url); } else { showFile(url); } } public void showDir(final String dir){ Enumeration em = null; FileConnection fc = null; currentDir = dir; listForm.removeAll(); contentList = new List(); contentList.setListCellRenderer(new MyRenderer()); listForm.addComponent(BorderLayout.CENTER,contentList); try{ if(dir.equals(ROOT) == true){ //枚举根目录列表 em = FileSystemRegistry.listRoots(); }else{ //非根目录 fc = (FileConnection) Connector.open(RES_PREFIX + dir); em = fc.list(); MyContainer up = new MyContainer(UP_DIR); up.name.setIcon(helper.getIconByExt("/")); contentList.addItem(up); } while(em.hasMoreElements()){ String fileName = (String) em.nextElement(); if(fileName.endsWith(SEPS_STR)){ //如果为目录 MyContainer c = new MyContainer(fileName); c.name.setIcon(helper.getIconByExt("/")); contentList.addItem(c); System.out.println("filName------>"+fileName); }else{ //非目录（文件） MyContainer c = new MyContainer(fileName); c.name.setIcon(helper.getIconByExt(extractExt(fileName))); contentList.addItem(c); } } listForm.revalidate(); contentList.setSelectedIndex(0,true); if(fc != null){ fc.close(); } }catch(Exception ex){ ex.printStackTrace(); } listForm.show(); } //文件上传 public void showFile(final String fileName){ String url = "http://dev.mopietek.net:8080/waptest_1.0/httpup"; String tempFileName = fileName.toUpperCase(); byte[] data = null; try{ FileConnection fc = (FileConnection) Connector.open(RES_PREFIX + fileName,Connector.READ); if(!fc.exists()){ Dialog.show("Exception", "未找到文件", "ok","cancel"); } if(isEndWithIn(tempFileName,IMAGE_EXT) == true){ InputStream is = fc.openInputStream(); ByteArrayOutputStream out = new ByteArrayOutputStream(4096); byte[] tmp = new byte[4096]; int n; while((n = is.read(tmp)) != -1){ out.write(tmp, 0, n); out.flush(); } is.close(); out.close(); data = out.toByteArray(); } if(fc != null){ fc.close(); } }catch(Exception ex){ ex.printStackTrace(); } try { HttpConnection sc = (HttpConnection) Connector.open(url, Connector.READ, true); sc.setRequestMethod(HttpConnection.POST); sc.setRequestProperty("Content-Type", "application/octet-stream"); sc.setRequestProperty("Content-Length", String.valueOf(data.length)); OutputStream output = sc.openOutputStream(); output.write(data); output.flush(); output.close(); } catch (IOException e) { e.printStackTrace(); } } // private String getRelativeName(final String fileName){// int pos = fileName.lastIndexOf(SEPS_CHAR);// if(pos == -1){// return ("");// }// return (fileName.substring(pos + 1, fileName.length()));// } private boolean isEndWithIn(final String fileName,final String[] extArray){ for(int i=0;i<extArray.length;i++){ if(fileName.endsWith(extArray[i]) == true){ return true; } } return false; } //获取扩展名（不包括'.'符号） private String extractExt(final String fileName){ int pos = fileName.lastIndexOf('.'); return (fileName.substring(pos + 1, fileName.length()).toLowerCase()); } } }
package com.mopietek;import java.io.IOException;import java.util.Hashtable;import com.sun.lwuit.Image;public class IconHelper { //图标资源 private Image imgFolder; private Image unknownImage; private Image textImage; //Audio private Image audioImage; //Picture private Image picImage; private Image jpgImage; //Video private Image sgpImage; private Image aviImage; private Image wmvImage; private Image mpgImage; //Web private Image zipImage; private Image htmlImage; private Image xmlImage; //Source private Image cImage; private Image cppImage; private Image headerImage; //图标管理容器 private Hashtable iconTable; public IconHelper(){ iconTable = new Hashtable(); try{ //载入图标资源 imgFolder = Image.createImage("/filetype/folder.png"); unknownImage = Image.createImage("/filetype/unknown.png"); textImage = Image.createImage("/filetype/text.png"); //Audio audioImage = Image.createImage("/filetype/audio.png"); //Picture picImage = Image.createImage("/filetype/pic.png"); jpgImage = Image.createImage("/filetype/jpg.png"); //Video sgpImage = Image.createImage("/filetype/3gp.png"); aviImage = Image.createImage("/filetype/avi.png"); wmvImage = Image.createImage("/filetype/wmv.png"); mpgImage = Image.createImage("/filetype/mpg.png"); //Web zipImage = Image.createImage("/filetype/zip.png"); htmlImage = Image.createImage("/filetype/html.png"); xmlImage = Image.createImage("/filetype/xml.png"); //Source cImage = Image.createImage("/filetype/c.png"); cppImage = Image.createImage("/filetype/cpp.png"); headerImage = Image.createImage("/filetype/header.png"); }catch(IOException e){ //图标资源 imgFolder = null; unknownImage = null; textImage = null; //Audio audioImage = null; //Picture picImage = null; jpgImage = null; //Video sgpImage = null; aviImage = null; wmvImage = null; mpgImage = null; //Web zipImage = null; htmlImage = null; xmlImage = null; //Source cImage = null; cppImage = null; headerImage = null; e.printStackTrace(); } initTable(); } private void initTable() { //Key为扩展名(不包括'.'符号),值为content type iconTable.put("/", imgFolder); iconTable.put("", unknownImage); iconTable.put("txt", textImage); //Source iconTable.put("c", cImage); iconTable.put("cpp", cppImage); iconTable.put("h", headerImage); //Web iconTable.put("html", htmlImage); iconTable.put("htm", htmlImage); iconTable.put("xml", xmlImage); iconTable.put("zip", zipImage); iconTable.put("jar", zipImage); //audio iconTable.put("mp3", audioImage); iconTable.put("wma", audioImage); iconTable.put("mid", audioImage); iconTable.put("wav", audioImage); //Picture iconTable.put("gif", picImage); iconTable.put("png", picImage); iconTable.put("jpg", jpgImage); iconTable.put("jepg", jpgImage); //Video iconTable.put("3gp", sgpImage); iconTable.put("avi", aviImage); iconTable.put("wmv", wmvImage); iconTable.put("mpeg", mpgImage); iconTable.put("mpg", mpgImage); iconTable.put("mp4", mpgImage); } //按照扩展名(不包括'.'符号) 获取文件的图标对象 public Image getIconByExt(final String extension) { Image temp = (Image) iconTable.get(extension); //是否为空,则使用默认图标替代 return ((temp == null) ? unknownImage : temp); }}由于是在昨天的lwuit版手机本地文件读取上修改，所以代码中用到的资源文件在上一篇中可以下载，程序中只是写实现了图片的上传的代码，其它类型文件跟图片文件上传相同。