[英]HttpUrlConnection “PUT” Request also sends “GET” Request
My issue is that when I use HttpURLConnection
to send a PUT
request to my REST API
, it sends a GET
request first, then a PUT
request. 我的问题是,当我使用HttpURLConnection
将PUT
请求发送到REST API
,它将首先发送GET
请求,然后发送PUT
请求。 I was wondering if any of my code I have to send a PUT
request is causing it to also send a GET
request. 我想知道我必须发送PUT
请求的任何代码是否导致它也发送GET
请求。
I know that this issue occurs in my Android
code because I also use Postman
to send PUT
requests, and I never have an issue. 我知道在我的Android
代码中会发生此问题,因为我也使用Postman
发送PUT
请求,而我从来没有遇到过问题。
Below is a copy of the function I use to send HttpUrlConnection
requests. 下面是我用来发送HttpUrlConnection
请求的函数的副本。
public String HTTPConnection(String requestType, String url, String input, Context context, Activity activity){
HttpURLConnection connection = null;
try {
URL OBJ = new URL(url);
connection = (HttpURLConnection) OBJ.openConnection();
connection.setRequestMethod(requestType);
switch (requestType.toLowerCase()) {
case "get":
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuilder response = new StringBuilder();
int i = 1;
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
i++;
}
in.close();
return response.toString();
case "put":
if (!input.equals("")){
OBJ.openStream();
connection.setRequestProperty("Content-type", "application/json");
connection.setRequestProperty("Accept", "application/json");
connection.setDoOutput(true);
}
Writer writer = new BufferedWriter(new OutputStreamWriter(connection.getOutputStream(), "UTF-8"));
writer.write(input);
writer.flush();
writer.close();
connection.getInputStream();
return "";
default:
return "";
}
} catch (IOException e){
e.printStackTrace();
return null;
}
}
OBJ.openStream();
sends a GET request (see java.net.URL.openStream ), since it opens an input stream for reading the contents of that URL. 发送GET请求(请参阅java.net.URL.openStream ),因为它打开了一个输入流以读取该URL的内容。
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