FTP下载的问题,从网上找了许多代码,但运行下载文件(我要下载的是.XML文件)都没完全下载成功. 求大家给个经测试一定可以下载文件成功的源

下面的是我每次只能下载到的.XML文件内容:
 <?xml version="1.0" encoding="UTF-8" ?> 
  <dataroot xmlns:od="urn:schemas-microsoft-com:officedata" generated="2006-01-01T16:05:06" /> 
实际上里面的数据都没下载到,
<?xml version="1.0" encoding="UTF-8" ?> 
- <dataroot xmlns:od="urn:schemas-microsoft-com:officedata" generated="2006-01-10T16:12:10">
+ <PQSItemGroup>
  <SubmissionNumber>130177958</SubmissionNumber> 
  <VendorName>Namyang International</VendorName> 
  <BPMNumber>15486</BPMNumber> 
  <GMSNumber>1111626</GMSNumber> 
  <VendorContact>JINSOO HONG, Sang Soo Lee, soo im, jongwoog yim, Chul Ho Yi, sunmi Lee, Jimie Lee, Jasun Koo</VendorContact> 
  <ContactPhone>822-5516741, 82-2-551-6741, 822-551-6741, 822-551-6741, 82-2-551-6741, 82-16-744-8311, 82-2-2191-3438, 82-2-2191-3433</ContactPhone> 
  <ContactFax>822-5516735, 82-2-551-6735, , , 82-2-551-6735, , 82-2-551-6735, 82-2-551-6735</ContactFax> 
  <ContactEmail>[email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]</ContactEmail> 
  <TSSVendor>1</TSSVendor> 
  <InStoreDate>5/24/2006</InStoreDate> 
  <ItemGroupDescription>ME HERRING C</ItemGroupDescription> 
  <DPCI>014/13/2839, 014/13/2840, 014/13/2841, 014/13/2842, 014/13/2843, 014/13/2844, 014/13/2845, 014/13/2846</DPCI> 
  <VendorStyle>132378</VendorStyle> 
  <ColorNumber>2410</ColorNumber> 
  <GMSColor>SAND</GMSColor> 
  <SizeRange>COROLLA SAND 10, COROLLA SAND 12, COROLLA SAND 14, COROLLA SAND 16, COROLLA SAND 18, COROLLA SAND 4, COROLLA SAND 6, COROLLA SAND 8</SizeRange> 
  <Buyer>Molly Tatalovich</Buyer> 
  </PQSItemGroup>大家帮我看看是什么愿因,急救, 高手和知道的请帮忙.