java HttpUrlConnection addRequestProperty 方法不传递参数
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HttpUrlConnection addRequestProperty Method Not Passing Parameters
提问by David
I have some working java code which does the following:
我有一些工作的 java 代码，它执行以下操作：
URL myUrl = new URL("http://localhost:8080/webservice?user=" + username + "&password=" + password + "&request=x");
HttpURLConnection myConnection = (HttpURLConnection) myUrl.openConnection();
myConnection.setRequestMethod("POST");
// code continues to read the response stream
However, I noticed that my webserver access log contained the plaintext password for all of the users who connected. I would like to get this out of the access log, but the webserver admins claim that this needs to be changed in my code and not via webserver config.
但是，我注意到我的网络服务器访问日志包含所有连接用户的明文密码。我想从访问日志中删除它，但是网络服务器管理员声称这需要在我的代码中进行更改，而不是通过网络服务器配置进行更改。
I tried changing the code to the following:
我尝试将代码更改为以下内容：
URL myUrl = new URL("http://localhost:8080/webservice");
HttpURLConnection myConnection = (HttpURLConnection) myUrl.openConnection();
myConnection.setRequestMethod("POST");
// start of new code
myConnection.setDoOutput(true);
myConnection.addRequestProperty("username", username);
myConnection.addRequestProperty("password", password);
myConnection.addRequestProperty("request", "x");
// code continues to read the response stream
Now the access log does not contain the username/password/request method. However, the webservice now throws an exception indicating that it didn't receive any username/password.
现在访问日志不包含用户名/密码/请求方法。但是，Web 服务现在抛出一个异常，表明它没有收到任何用户名/密码。
What did I do wrong in my client code? I also tried using "setRequestProperty" instead of "addRequestProperty" and it had the same broken behavior.
我在客户端代码中做错了什么？我还尝试使用“setRequestProperty”而不是“addRequestProperty”，但它具有相同的损坏行为。
回答by David
I actually found the answer in another question on stackoverflow.
我实际上在关于 stackoverflow 的另一个问题中找到了答案。
The correct code should be:
正确的代码应该是：
URL myUrl = new URL("http://localhost:8080/webservice");
HttpURLConnection myConnection = (HttpURLConnection) myUrl.openConnection();
myConnection.setRequestMethod("POST");
myConnection.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(myConnection.getOutputStream ());
wr.writeBytes("username=" + username + "&password="+password + "&request=x");
// code continues to read the response stream
