I am faced with a problem regarding to the HttpURLConnection. I want to send a POST request with 2 keys in the body (form-data).
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("POST");
// add header
con.setRequestProperty("Content-Type", "multipart/form-data");
con.setRequestProperty("cookie", cookies);
con.setDoInput(true);
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
How do I add the body (form-data)?
For example, I would to add 2 keys, name: "abc" and password: "abc": Form-Data Image
Use Content-Disposition: form-data; followed by form-data parameters.
String name = "abc";
String password = "abc";
String crlf = "\r\n";
wr.writeBytes("Content-Disposition: form-data; name=\"" + name + "\"; password=\"" + password + "\""+ crlf);
Related
I tried to use the following method which is used in other areas of the app but I still get 401:
The original question is posted here: Java 6 EE Client Credentials Bearer
String urlParameters = "client_id=CLIENT_ID&client_secret=CLIENT_SECRET&grant_type=client_credentials";
byte[] postData = urlParameters.getBytes("UTF-8");
int postDataLength = postData.length;
String TokenURL = "URL for getting the token here";
URL url = new URL(TokenURL);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setInstanceFollowRedirects(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setRequestProperty("charset", "utf-8");
conn.setRequestProperty("Content-Length", Integer.toString(postDataLength));
conn.setUseCaches(false);
DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
wr.write(postData);
wr.flush();
System.out.println("->->-> We will send: " + urlParameters);
if (conn.getResponseCode() != HttpURLConnection.HTTP_CREATED && conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
System.out.println("->->-> Returned Http Code: " + conn.getResponseCode());
throw new RuntimeException("Failed : HTTP error code for Getting Token XFORMURLENCODED : " +
conn.getResponseCode());
}
I have to automate API through selenium+TestNG (Java). I know its not a good habit to automate APIs using selenium code but still I have got this to do.
Scenario - there is a login API and have to send the email and password and get response back (response code 200). Also can we print the response information also?
If you are working on java you can use JAVA socket libraries for the same:
Here are the sample code for POST API:
URL obj = new URL(url);
con = (HttpsURLConnection) obj.openConnection();
// add request header
con.setRequestMethod("POST");
con.setRequestProperty("User-Agent", USER_AGENT);
String urlParameters = "j_username=" + user + "&j_password=" + pass
+ "";
// Send post request
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
responseCode = con.getResponseCode();
System.out.println("\nSending 'POST' request to URL : " + url);
System.out.println("Post parameters : " + urlParameters);
System.out.println("Response Code : " + responseCode);
For GET API:
obj = new URL(url);
obj.openConnection();
con = (HttpsURLConnection) obj.openConnection();
// optional default is GET
con.setRequestMethod("GET");
CookieHandler.setDefault(new CookieManager());
// add request header
con.setRequestProperty("User-Agent", USER_AGENT);
con.setRequestProperty("Content-Type", "text/plain; charset=utf-8");
con.setRequestProperty("Accept-Language", "en-US,en;q=0.8l");
con.setRequestProperty("Accept", "*/*");
con.setRequestProperty(
"Cookie",
"BIGipServerPRODCAN-Default=423078080.2087.0000; __utma=44365112.1659763098.1418886605.1427784911.1441869730.4; __utmc=44365112; __utmz=44365112.1427784911.3.2.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided); JSESSIONID="
+ cookieValue);
responseCode = con.getResponseCode();
System.out.println("\nSending 'GET' request to URL : " + url);
System.out.println("Response Code : " + responseCode);
BufferedReader in = new BufferedReader(new InputStreamReader(
con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
File file = new File(prop.getFilePath() + "//XMLs//" + fileName
+ ".xml");
file.delete();
FileWriter fstream = new FileWriter(prop.getFilePath() + "//XMLs//"
+ fileName + ".xml", true);
BufferedWriter out = new BufferedWriter(fstream);
while ((inputLine = in.readLine()) != null) {
out.write(inputLine.toString());
out.newLine();
response.append(inputLine);
}
in.close();
out.close();`
I'm trying to use java to log in to a website and then eventually retrieve the cookie in order to gain access to information on the site. It seems my post request is working but I am receiving a response code of 500. I was wondering if this is because I have formatted the post data incorrectly
When using the website it says the post is formatted as below
{userName: "dfh", password: "suyj"}
In my code I have used this
String urlParameters = "userName:dfh,Password:suyj";
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
Am I right in thinking this could be the issue, and if so how can I correct my post data format?
Below is my whole code
public class post {
public static void main(String[] args) throws IOException {
final String USER_AGENT = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0";
String url = "website";
URL obj = new URL(url);
HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();
//add reuqest header
con.setRequestMethod("POST");
con.setRequestProperty("User-Agent", USER_AGENT);
con.setRequestProperty("Accept", "application/json, text/javascript, */*; q=0.01");
con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
con.setRequestProperty("Accept-Encoding", "gzip, deflate");
con.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
con.setRequestProperty("X-Requested-With", "XMLHttpRequest");
con.setRequestProperty("Referer", "https://extbasicph05.podc.sl.edst.ibm.com/FFAMobileRelay/");
con.setRequestProperty("Content-Length", "64");
con.setRequestProperty("Connection", "keep-alive");
con.setRequestProperty("Referer", "https://extbasicph05.podc.sl.edst.ibm.com/FFAMobileRelay/");
con.setRequestProperty("Cookies", "UnicaNIODID=KGew34gcvZ5-Y2NoBQr; mmid=-1658088866%7CKAAAAAr15Tc8FgsAAA%3D%3D; mmcore.pd=1484641984%7CejEyAAoBQvXlNzwWCxPPXGheAVibftSXgNJIDwAAADoOVvoDstFIAAAAAP//////////AAZEaXJlY3QBFgwIAAYABQAAAAAAAP+MAACAigAA/4wAAAIAxDEAAABFBVUW6QsA/////wHpCxoM//83AAAAAAAAAAOSfwAAusgAAJN/AAAgyAAAlH8AACHIAAABIYAAAAIAAADVNgAAAPcCB+70CwD/////AfQLHQz//60CAAEAAAAAAX+KAAAp2gAAAoCKAABAWBAAgYoAALMAAAAAAAABRQ%3D%3D; mmcore.srv=ldnvwcgus03; IBM_W3SSO_ACCESS=w3-03.sso.ibm.com; CoreID6=32675392371714128784599&ci=51040000|IBMTEST_51040000|IBMTESTW3_50200000|IBMTESTWWW; CoreM_State=75~-1~-1~-1~-1~3~3~5~3~3~7~7~|~~|~~|~~|~||||||~|~~|~~|~~|~~|~~|~~|~~|~; CoreM_State_Content=6~|~EE9EDB09923CD77F~|~0; PrefID=222-11978519; CSList=23427744/17540903,0/0,0/0,0/0,0/0; _ga=GA1.2.233924805.1433836377; mmcore.tst=0.169; ibmSurvey=1435758135373; 50200000_clogin=v=1&l=1435758136&e=1435760174616");
String urlParameters = "userName:dfh,Password:suyj";
// Send post request
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
int responseCode = con.getResponseCode();
System.out.println("\nSending 'POST' request to URL : " + url);
System.out.println("Post parameters : " + urlParameters);
System.out.println("Response Code : " + responseCode);
System.out.println(con.getErrorStream());
BufferedReader in = new BufferedReader(
new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
//print result
System.out.println(response.toString());
}
}
You have already found out your problem. Just fix it...
Instead of String urlParameters = "userName:dfh,Password:suyj";, use
String urlParameters = "{userName:\"dfh\",Password:\"suyj\"}";
Though I believe your server expects JSON formatted post parameter. In that case you should use,
String urlParameters = "{\"userName\":\"dfh\",\"Password\":\"suyj\"}";
Or use a JSON parser to create the parameters.
I am trying to implement Twitter sign in in my java web application.
I am following this manual.
I registered my application at here.
But when i am trying to get request_token i am getting Response Code : 401.
I am using following code to get request_token.
String userUrl = "https://api.twitter.com/oauth/request_token";
String urlParam = oauth_callback + "&" + oauth_consumer_key + "&" + oauth_nonce + "&"+ oauth_signature + "&" + oauth_signature_method+"&"+oauth_timestamp+"&"+oauth_version;
URL url = new URL(userUrl);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
String urlParameters = urlParam;
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
int responseCode = con.getResponseCode();
As the doc suggests, you have to put these "urlparams" in the headers, not in the URL parameters :
https://dev.twitter.com/oauth/reference/post/oauth/request_token
You might also find this useful: Implement OAuth in Java
I have some connection to url:
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
How I can send post parameter to this url that php function: http://www.php.net/manual/en/reserved.variables.request.php can read it ? I try to according this question: Java - sending HTTP parameters via POST method easily but with no success. It just display empty array
php code:
print_r($_REQUEST,1)
java code:
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setInstanceFollowRedirects(false);
connection.setRequestMethod("POST");
connection.setRequestProperty("category_name", categoryName);
connection.setRequestProperty("complete", complete);
DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
connection.getResponseCode();
wr.flush();
wr.close();
connection.disconnect();
You forgot to set the Content-Type header, and you need to write the category_name and complete values as a string to the stream.
Quoting the code from the post you mentioned:
String urlParameters = "param1=a¶m2=b¶m3=c";
String request = "http://example.com/index.php";
URL url = new URL(request);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setInstanceFollowRedirects(false);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestProperty("charset", "utf-8");
connection.setRequestProperty("Content-Length", "" + Integer.toString(urlParameters.getBytes().length));
connection.setUseCaches (false);
DataOutputStream wr = new DataOutputStream(connection.getOutputStream ());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
connection.disconnect();
As you can see, he sets the headers (Content-Type, Charset and Content-Length) and then writes the POST data to the stream.
The POST data is just like the GET format: key-value pairs seperated by &, and the key and value are seperated by =.
As the Content-Type is set to www-form-urlencoded, you need to 'url encode' the key and value values. You can do this using the URLEncoder.encode method.
The urlParameters for your POST data would be:
String urlParameters = "category_name=" + URLEncoder.encode(categoryName) + "&complete=" + URLEncoder.encode(complete);