java webservice上传下载文件代码分享

package com; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.sql.Date; import java.text.SimpleDateFormat; import java.util.Random; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; /* * web servcie 上传下载文件 */ public class FileProgress { public String sayHello(String name) { return "Hello," + name+"\n"+getdir("2"); } /* * 文件上传服务 */ public String uploadFile(String fileName, String filetype, String file)//byte[] bytes) { FileOutputStream fos = null; try { String filedir = getdir(filetype); BASE64Decoder decoder= new BASE64Decoder(); byte[] bytes = decoder.decodeBuffer(file); if(filedir=="") { return ""; } Integer rdm = new Random().nextInt(10000); String savename = getDataTimeString(true) +rdm.toString()+fileName.substring(fileName.indexOf('.')); fos = new FileOutputStream(filedir+savename); // 将字节数组bytes中的数据，写入文件输出流fos中 fos.write(bytes); fos.flush(); return filedir +savename; } catch (Exception e) { e.printStackTrace(); return ""; } finally { try { fos.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * @param filepath */ private String getdir(String filetype) { String path = "F:\\youme\\{0}\\" + getDataString() + "\\"; switch (filetype) { case "2": path = path.replace("{0}", "image"); break; case "3": path = path.replace("{0}", "vedio"); break; default: return ""; } try { java.io.File file = new java.io.File(path); if(!file.exists()) { if(!file.mkdirs()) { return ""; } } return path; } catch(Exception ex) { return ""; } finally { } } /* * 文件下载服务 */ public String downloadFile(String filepath) { // filepath = "F:\\youme\\vedio\\2013-09-03\\201309031700143294.amr"; FileInputStream in = null; byte bytes[] = null; String file = null; try { in = new FileInputStream(filepath); bytes = new byte[in.available()]; // 从输入流in中,将 bytes.length 个字节的数据读入字节数组bytes中 in.read(bytes); BASE64Encoder encoder = new BASE64Encoder(); file = encoder.encode(bytes); } catch (Exception e) { e.printStackTrace(); return ""; } finally { try { in.close(); } catch (IOException e) { e.printStackTrace(); } } // return bytes; return file; } /* * 获取当前时间 */ private static String getDataTimeString(Boolean isfilename) { try { SimpleDateFormat formatter = null; if(!isfilename) { formatter= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); } else { formatter= new SimpleDateFormat("yyyyMMddHHmmss"); } Date curDate = new Date(System.currentTimeMillis());//获取当前时间 return formatter.format(curDate); } catch(Exception ex) { System.out.println(ex.getMessage()); return ""; } } /* * 获取当前日期 */ private static String getDataString() { try { SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); Date curDate = new Date(System.currentTimeMillis());//获取当前时间 return formatter.format(curDate); } catch(Exception ex) { System.out.println(ex.getMessage()); return ""; } } }