我在java中向PHP发布了一个表单，但在Ubuntu18.10中没有响应

作为标题，我想用Java实现一个Web服务器，唯一的问题是我需要在login.php上发布一个表单，然后得到响应。 下面的代码是如何将数据发布到PHP的

URL url = new URL("http://127.0.0.1:6789" + req.uri);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
// Convert string to byte array, as it should be sent
// req.form is the form data to post to the login.php
byte[] postDataBytes = req.form.getBytes(StandardCharsets.UTF_8);

// set the form from request as the post data to PHP
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setRequestProperty("Content-Length", String.valueOf(postDataBytes.length));
conn.getOutputStream().write(postDataBytes);

// get response
int code = conn.getResponseCode();
InputStream is;
if (code == 200) {
    is = conn.getInputStream();
    fillHeaders(Status._200_);
} else {
    is = conn.getErrorStream();
    fillHeaders(Status._404_);
}

// get response conetent length from login.php
int length = conn.getContentLength();

login.php的内容非常简单：

<?php
echo 'User name is：' . $_POST['loginName'];
?>

这意味着我无法从login.php获得响应

那么我如何改变ubuntu的代码或环境（可能是php的版本？）来解决这个问题呢

---

Thx。XD

如果java是服务器，PHP是客户端，那么应该用java打开监听连接

ServerSocket server = new ServerSocket(8080);
 System.out.println("Listening for connection on port 8080 ....");
 while (true) { 
Socket clientSocket = server.accept();
 InputStreamReader isr = new InputStreamReader(clientSocket.getInputStream()); 

BufferedReader reader = new BufferedReader(isr);
 String line = reader.readLine();
 while (!line.isEmpty()) { 
System.out.println(line); line = reader.readLine(); 
} 
}

---

这个问题清楚地描述了从java到PHP的请求，而不是相反。无论哪种方式，您都不会打开原始套接字连接来接收HTTP请求……有更好的方法来启动webserverADyson说的没错。Thx，但是我仍然没有解决这个问题的方法。使用

PHPCGI

可以解决这个问题。

ServerSocket server = new ServerSocket(8080);
 System.out.println("Listening for connection on port 8080 ....");
 while (true) { 
Socket clientSocket = server.accept();
 InputStreamReader isr = new InputStreamReader(clientSocket.getInputStream()); 

BufferedReader reader = new BufferedReader(isr);
 String line = reader.readLine();
 while (!line.isEmpty()) { 
System.out.println(line); line = reader.readLine(); 
} 
}