有点难以置信，Java 让客户端变得如此简单。我确信我将不得不将图像发布到服务器文件以首先对其进行清理，但我也想阻止任何人访问这样的服务器文件（并且想了一点）并最终用图片向我发送垃圾邮件。我需要严格的流程，最终用户没有潜在的篡改。
如果我理解正确，从我读到的内容来看，PUT 应该正是我所需要的。我的签名 ja 从客户端向服务器发送与站点相关的信息图像，而不会暴露我的任何 FTP 信息或显示可能受到攻击的上传文件。我猜我是否正确掌握了 PUT 是我的问题。它会通过 http 将图像放在我的帐户上，而无需额外的处理过程？
顺便说一句，我怎么能把这个片段用于图像？
URLConnection urlconnection=null;
try{
File file = new File("C:/test.txt");
URL url = new URL("http://192.168.5.27/Test/test.txt");
urlconnection = url.openConnection();
urlconnection.setDoOutput(true);
urlconnection.setDoInput(true);
if (urlconnection instanceof HttpURLConnection) {
try {
((HttpURLConnection)urlconnection).setRequestMethod("PUT");
((HttpURLConnection)urlconnection).setRequestProperty("Content-type", "text/html");
((HttpURLConnection)urlconnection).connect();
} catch (ProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
BufferedOutputStream bos = new BufferedOutputStream(urlconnection
.getOutputStream());
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(
file));
int i;
// read byte by byte until end of stream
while ((i = bis.read()) >0) {
bos.write(i);
}
System.out.println(((HttpURLConnection)urlconnection).getResponseMessage());
}
catch(Exception e)
{
e.printStackTrace();
}
try {
InputStream inputStream;
int responseCode=((HttpURLConnection)urlconnection).getResponseCode();
if ((responseCode>= 200) &&(responseCode<=202) ) {
inputStream = ((HttpURLConnection)urlconnection).getInputStream();
int j;
while ((j = inputStream.read()) >0) {
System.out.println(j);
}
} else {
inputStream = ((HttpURLConnection)urlconnection).getErrorStream();
}
((HttpURLConnection)urlconnection).disconnect();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}