这是一种可能性：下载：
URL url = new URL("http://localhost:8080/uploadfiles");
HttpURLConnection con = (HttpURLConnection)url.openConnection();
try {
con.addRequestProperty("Authorization",
"Basic " + encode64(username + ":" + password));
InputStream in = con.getInputStream();
try {
OutputStream out = new FileOutputStream(outFile);
try {
byte buf[] = new byte[4096];
for (int n = in.read(buf); n > 0; n = in.read(buf)) {
out.write(buf, 0, n);
}
} finally {
out.close();
}
} finally {
in.close();
}
} finally {
con.disconnect();
}
上载：
URL url = new URL("http://localhost:8080/uploadfiles");
HttpURLConnection con = (HttpURLConnection)uploadUrl.openConnection();
try {
con.setDoOutput(true);
con.setRequestMethod("POST");
con.addRequestProperty("Authorization",
"Basic " + encode64(username + ":" + password));
OutputStream out = con.getOutputStream();
try {
InputStream in = new FileInputStream(inFile);
try {
byte buffer[] = new byte[4096];
for (int n = in.read(buffer); n > 0; n = in.read(buffer)) {
out.write(buffer, 0, n);
}
} finally {
in.close();
}
} finally {
out.close();
}
int code = con.getResponseCode();
if (code != HttpURLConnection.HTTP_OK) {
String msg = con.getResponseMessage();
throw new IOException("HTTP Error " + code + ": " + msg);
}
} finally {
con.disconnect();
}
现在，在服务器端，您将需要区分GET和POST请求并进行相应处理。您将需要一个库来处理上传，例如apacheFileUpload
哦，在客户端，您将需要一个执行Base64编码的库，例如apachecommons编解码器
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