我想在 swing 中制作一个连接到本地运行的 tomcat 服务器的程序。使用用户名,密码验证,然后用户可以上传服务器目录中的文件。即.http://localhost:8080/uploadfiles。从用户定义的文件路径,和下载到本地目录一样。
最佳答案
这是一种可能: 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();
}
上传:
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,您需要区分 GET 和 POST 请求并相应地处理它们。您将需要一个库来处理上传,例如 apache FileUpload
哦,在客户端,您将需要一个进行 Base64 编码的库,例如 apache commons codec
关于java - 如何在swing中使用用户名和密码从tomcat服务器上传、下载文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7608428/