我的JSP中有2个属性（path_Id和path_Proof_Of_Address），在这些属性中，我会在每个属性中发送一个图像。
但是当使用Hashtable中的MultipartFormDataRequest保存它们时，如果保留大小2，而仅在第一个键（file_Id）中保存一个值，则丢弃在键file_Address中发送的图像。
MultipartFormDataRequest mrequest = null;
UploadBean upBean = null;
try {
mrequest = new MultipartFormDataRequest(request);
Hashtable files = null;
files = mrequest.getFiles();
System.out.println("Size of Hashtable: " + files.size());
Set<String> keys = files.keySet();
//Obtaining iterator over set entries
Iterator<String> itr = keys.iterator();
//Displaying Key and value pairs
while (itr.hasNext()) {
// Getting Key
String str = itr.next();
/* public V get(Object key): Returns the value to which
* the specified key is mapped, or null if this map
* contains no mapping for the key.
*/
System.out.println("Key: "+str+" & Value: "+files.get(str));
}
if ((files != null) && (!files.isEmpty())) {
UploadFile file_Id = null;
if ((UploadFile) files.get("path_Id") != null) {
file_Id = (UploadFile) files.get("path_Id");
}
upBean = new UploadBean();
upBean.setFolderstore(path_Id);
System.out.println("file_Id: " + /*file_Id.getContentType() + */file_Id.getFileName()/* + file_Id.getFileSize() + file_Id.getClass() + file_Id.getData() + file_Id.getInpuStream()*/);
upBean.store(mrequest, "path_Id");
if (file_Id.getFileName() != null) {
// We get the name of the loaded file
name_Image_Id = file_Id.getFileName();
// Obtain the extension
String extension_Id = FilenameUtils.getExtension(path_Id + name_Image_Id);
// We get the path and the original name
File f1 = new File(path_Id + name_Image_Id);
// We set the name with our nomenclature
File f2 = new File(path_Id + "Id_" + email + "." + extension_Id);
// We delete the file if already exist
f2.delete();
// We rename the name with our nomenclature
f1.renameTo(f2);
// We set the value the name with our nomenclature
path_Id = path_Id + name_Image_Id;
} else {
// if they do not send us any Id, we initialize the path
path_Id = null;
}
UploadFile file_Address = null;
if ((UploadFile) files.get("path_Proof_Of_Address") != null) {
file_Address = (UploadFile) files.get("path_Proof_Of_Address");
}
upBean = new UploadBean();
upBean.setFolderstore(path_Proof_Of_Address);
System.out.println("file_Address: " + /*file_Id.getContentType() + */file_Address.getFileName()/* + file_Id.getFileSize() + file_Id.getClass() + file_Id.getData() + file_Id.getInpuStream()*/);
upBean.store(mrequest, "path_Proof_Of_Address");
if (file_Address.getFileName() != null) {
// We get the name of the loaded file
name_Image_Proof_Of_Address = file_Address.getFileName();
System.out.println("1");
// Obtain the extension
String extension_Address = FilenameUtils.getExtension(path_Proof_Of_Address + name_Image_Proof_Of_Address);
System.out.println("2");
System.out.println(path_Proof_Of_Address);
System.out.println(name_Image_Proof_Of_Address);
System.out.println(extension_Address);
// We get the path and the original name
File f1 = new File(path_Proof_Of_Address + name_Image_Proof_Of_Address);
// We set the name with our nomenclature
File f2 = new File(path_Proof_Of_Address + "Address_" + email + "." + extension_Address);
// We delete the file if already exist
f2.delete();
// We rename the name with our nomenclature
f1.renameTo(f2);
// We set the value the name with our nomenclature
path_Proof_Of_Address = path_Proof_Of_Address + name_Image_Proof_Of_Address;
} else {
// if they do not send us any Id, we initialize the path
path_Proof_Of_Address = null;
}
} else {
System.out.println("The customer do not sent us any file");
}
} catch (UploadException exc) {
System.out.println(exc.getMessage());
}
哈希表的大小： 2
密钥： path_Proof_Of_Address和值：javazoom.upload.parsing.CosUploadFile@2eda20da
密钥：路径ID和值：javazoom.upload.parsing.CosUploadFile@1ec42012
file_Id： BGW.jpg
文件地址：空