ibatis+spring+struts2

package com.test.test; import java.io.DataInputStream; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.util.HashMap; import javax.servlet.http.HttpServletRequest; public class uploadFile { public static final int MAX_SIZE = 1024 * 1024*100; public static final String FILE_DIR = "d:/temp/"; private int file_Size=0; private String file_Path = ""; private HashMap hm = new HashMap(); public String upLoad(HttpServletRequest req) { String tmpString =""; String result = ""; DataInputStream dis = null; try { dis = new DataInputStream(req.getInputStream()); String content = req.getContentType(); if (content != null && content.indexOf("multipart/form-data") != -1) { int reqSize = req.getContentLength(); byte[] data = new byte[reqSize]; int bytesRead = 0; int totalBytesRead = 0; int sizeCheck = 0; while (totalBytesRead < reqSize) { // check for maximum file size violation sizeCheck = totalBytesRead + dis.available(); if (sizeCheck > MAX_SIZE) result = "gfd..."; bytesRead = dis.read(data, totalBytesRead, reqSize); totalBytesRead += bytesRead; } tmpString = new String(data); hm = parseAnotherParam(tmpString); System.out.println("src datatmp |"+new String(data)+"|"); int postion = arrayIndexOf(data, "\r\n".getBytes()); byte[] split_arr = new byte[postion]; System.arraycopy(data, 0, split_arr, 0, postion); System.out.println("split |"+new String(split_arr)+"|"); postion = arrayIndexOf(data, "filename=\"".getBytes()); byte[] dataTmp = new byte[data.length - postion]; System.arraycopy(data, postion, dataTmp, 0, dataTmp.length); data = null; data = dataTmp.clone(); String filePath =null; postion = arrayIndexOf(data, "Content-Type:".getBytes())-2; dataTmp = null; dataTmp = new byte[postion]; System.arraycopy(data, 0, dataTmp, 0, dataTmp.length); filePath = new String(dataTmp); if (filePath==null && filePath.equals("")) return ""; System.out.println("filename |"+filePath+"|"); // 分离contentType 并赋值 postion = arrayIndexOf(data, "Content-Type:".getBytes()); dataTmp = null; dataTmp = new byte[data.length - postion]; System.arraycopy(data, postion, dataTmp, 0, dataTmp.length); data = null; data = dataTmp.clone(); System.out.println("src adatatmp |"+new String(data)+"|"); postion = arrayIndexOf(data, "\n".getBytes()) + 1; dataTmp = null; dataTmp = new byte[data.length - postion]; System.arraycopy(data, postion, dataTmp, 0, dataTmp.length); data = null; data = dataTmp.clone(); System.out.println("datatmp |"+new String(data)+"|"); // 分离文件信息 获得最终想要的字节 postion = arrayIndexOf(data, split_arr); split_arr = null; dataTmp = null; dataTmp = new byte[postion - 2]; System.arraycopy(data, 2, dataTmp, 0, dataTmp.length); data = null; data = dataTmp.clone(); System.out.println("datatmp |"+new String(data)+"|"); postion = arrayLastIndexOf(data, "\n".getBytes())-1; dataTmp = null; dataTmp = new byte[postion]; System.out.println("postion:"+postion + " datalength:"+ data.length +" tmplength:" + dataTmp.length); System.arraycopy(data, 0, dataTmp, 0, dataTmp.length); data = null; System.out.println("data |"+new String(dataTmp)+"|"); String file_path = getFileName(filePath); System.out.println("file_path:"+file_path); if(null != file_path) { if (writeFile(dataTmp, FILE_DIR + file_path)) { this.file_Size = dataTmp.length; this.file_Path = FILE_DIR + file_path; result = "文件上传完毕"; } else { result = "文件上传失败"; } }else{ result = "文件名为空"; } dataTmp = null; } else { result = "content 必须为 multipart/form-data"; } } catch (UnsupportedEncodingException ex4) { result = "UnsupportedEncodingException错误"; } catch (NullPointerException e) { result = "NullPointerException错误"; } catch (IOException ex1) { result = "IOException 错误 "; }catch (Exception ex1) { result = "Exception 错误 "; } return result; } public String getFilePath(){ return this.file_Path; } public int getFileSize(){ return this.file_Size; } public boolean writeFile(byte[] data, String path) { File f = null; FileOutputStream fos = null; try { f = new File(path); f.createNewFile(); fos = new FileOutputStream(f); fos.write(data, 0, data.length); } catch (FileNotFoundException e) { return false; } catch (IOException e) { return false; } finally { try { fos.close(); } catch (IOException e) { return false; } } return true; } public String getFileName(String arg) { String path = ""; if(arg.equals("\"\"")) { return null; } if (arg.indexOf("\"") > -1) path = arg.substring(arg.indexOf("\"") + 1, arg.lastIndexOf("\"")); else path = arg; System.out.println("file_path:"+arg); path = path.substring(path.lastIndexOf("\\") + 1); return path; } //判断两个byte数组的值是否相等 private boolean arrayEquals(byte[] src, byte[] value){ if(src == null || value == null) return false; if(src.length != value.length) return false; for(int i=0; i<src.length; i++) { if(src[i] != value[i]) return false; } return true; } //找出value数组在src中的位置, 从前往后 private int arrayIndexOf(byte[] src, byte[] value){ if(src == null || value == null) return -1; if(src.length < value.length) return -1; int postion = -1; for(int i=0; i<src.length - value.length; i++) { postion = i; byte[] tmp = new byte[value.length]; System.arraycopy(src, i, tmp, 0, tmp.length); if(arrayEquals(tmp, value)) { tmp = null; return postion; }else{ postion = -1; tmp = null; } } return postion; } //找出value数组在src中的位置 private int arrayLastIndexOf(byte[] src, byte[] value){ if(src == nu