I have this method to connect to my webservice (REST API)
public static void getHttpCon() throws Exception{
String tokenUrl = AppPropertiesService.getProperty( URL_TOKEN );
String username = AppPropertiesService.getProperty( USERNAME );
String password = AppPropertiesService.getProperty( PASSWORD );
String POST_PARAMS = "username="+username+"&password="+password+"&lang=fr&grant_type=password&client_id=apiclient";
URL obj = new URL(tokenUrl);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type", "application/json;odata=verbose");
con.setRequestProperty("Authorization",
"Basic Base64_encoded_clientId:clientSecret");
con.setRequestProperty("Accept",
"application/x-www-form-urlencoded");
// For POST only - START
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
os.write(POST_PARAMS.getBytes());
os.flush();
os.close();
// For POST only - END
int responseCode = con.getResponseCode();
System.out.println("POST Response Code :: " + responseCode);
if (responseCode == HttpURLConnection.HTTP_OK) { //success
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());
} else {
System.out.println("POST request not worked");
}
}
I want to know how can i POSTa CSV File .
Should I do it directly in my method above ?
Do I have to create a new method by recovering the connection token from my method above?
My API ULR is POST /api/{id}/csv
Related
How can i use "sendPost Function", Instead of using more than one "sendPost function" for different requests in NodeJs ?
like this Example,I do 2 sendPost function to send 2 requests.
But the code itself is in the two functions with little change, so I want a way to do one "sendPost" function for both requests.
////////sign up
public static void sendPOST1(String POST_PARAMS) throws Exception {
System.out.println("Sending http");
URL obj = new URL(POST_URL_SU);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Accept", "application/json");
con.setRequestProperty("Content-Type", "application/json");
con.setConnectTimeout(50000); // 5 seconds
con.setReadTimeout(50000); // 5 seconds
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
byte[] outputBytesArray = POST_PARAMS.getBytes();
os.write(outputBytesArray);
os.flush();
os.close();
int responseCode = con.getResponseCode();
System.out.println("POST Response Code :: " + responseCode);
if (responseCode == HttpURLConnection.HTTP_OK) { //success
BufferedReader in = new BufferedReader(new InputStreamReader(
con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
// Here it read line line
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
System.out.println("Res: " + response.toString());
} else {
System.out.println(con.getResponseMessage());
System.out.println("POST request not worked");
}
}
////////Login
public static void sendPOST2(String POST_PARAMS) throws Exception {
System.out.println("Sending http");
URL obj = new URL(POST_URL_LI);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Accept", "application/json");
con.setRequestProperty("Content-Type", "application/json");
con.setConnectTimeout(50000); // 5 seconds
con.setReadTimeout(50000); // 5 seconds
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
byte[] outputBytesArray = POST_PARAMS.getBytes();
os.write(outputBytesArray);
os.flush();
os.close();
int responseCode = con.getResponseCode();
System.out.println("POST Response Code :: " + responseCode);
if (responseCode == HttpURLConnection.HTTP_OK) { //success
BufferedReader in = new BufferedReader(new InputStreamReader(
con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
System.out.println("Res: " + response.toString());
} else {
System.out.println(con.getResponseMessage());
System.out.println("POST request not worked");
}
}
You can create a single function sendPost() that takes a URL parameter:
public static void sendPost(String url, String POST_PARAMS) throws Exception {
System.out.println("Sending http");
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Accept", "application/json");
con.setRequestProperty("Content-Type", "application/json");
con.setConnectTimeout(50000); // 5 seconds
con.setReadTimeout(50000); // 5 seconds
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
byte[] outputBytesArray = POST_PARAMS.getBytes();
os.write(outputBytesArray);
os.flush();
os.close();
int responseCode = con.getResponseCode();
System.out.println("POST Response Code :: " + responseCode);
if (responseCode == HttpURLConnection.HTTP_OK) { //success
BufferedReader in = new BufferedReader(new InputStreamReader(
con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
System.out.println("Res: " + response.toString());
} else {
System.out.println(con.getResponseMessage());
System.out.println("POST request not worked");
}
}
In fact, I suggest you break this function into several smaller functions that do simple tasks.
I'm using the code below to create a http request to my amazon AWS api gateway with an object (mp3Base64) as its content. However, it needs to have the authorization token attached. Can anyone explain how this is done and show an example? Any help is gratefully received. Thanks.
public String executePost(String targetURL, Mp3Base64 mp3Base64) throws IOException {
ObjectMapper mapper = new ObjectMapper();
String mp3Base64Json = mapper.writeValueAsString(mp3Base64);
URL obj = new URL(targetURL);
HttpURLConnection connection = (HttpURLConnection) obj.openConnection();
connection = (HttpURLConnection) obj.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setRequestProperty("Content-Length",
Integer.toString(mp3Base64Json.getBytes().length));
connection.setRequestProperty("Content-Language", "en-US");
connection.setUseCaches(false);
connection.setDoOutput(true);
//Send request
DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
wr.writeBytes("base64=" + mp3Base64Json);
wr.flush();
wr.close();
//Get Response
int responseCode = connection.getResponseCode();
System.out.println("\nSending 'POST' request to URL : " + targetURL);
System.out.println("Post parameters : base64 =" + mp3Base64Json);
System.out.println("Response Code : " + responseCode);
InputStream is = connection.getInputStream();
BufferedReader in = new BufferedReader(
new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
//print result
System.out.println(response.toString());
return response.toString();
}
Using http in java (eclipse) I have to POST a message using a given url with header of http authorization as 64 base encoded message and body has the information like grant type,password,username ,scope.There is a given content type,password,username.I want the client code and using it I should be able to get the message from the server and show that message as the output.
Here is a sample code
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
String userpass = username + ":" + password;
String basicAuth = "Basic " + javax.xml.bind.DatatypeConverter.printBase64Binary(userpass.getBytes());
con.setRequestProperty ("Authorization", basicAuth);
con.setRequestMethod("POST");
con.setConnectTimeout(timeout);
con.setDoOutput(true);
con.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream ());
wr.write(requestString);
wr.flush ();
wr.close ();
int responseCode = con.getResponseCode();
BufferedReader in = new BufferedReader(
new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
return response.t
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
public class HttpClassExample {
public static void main(String[] args) throws Exception {
HttpClassExample http = new HttpClassExample();
System.out.println("Testing Send Http POST request");
http.sendPost();
}
// HTTP POST request
private void sendPost() throws Exception {
String userName="world#gmail.com";
String password="world#123";
String url = "https://world.com:444/idsrv/issue/oauth2/token";
URL obj = new URL(url);
HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();
//add reuqest header
String ClientId = "mmclient";
String ClientSecret = "norZGs5vkw+cmlKROazauMrZInW9jokxIRCmndMwc+o=";
String userpass = ClientId + ":" + ClientSecret;
String basicAuth = "Basic "+" "
+ javax.xml.bind.DatatypeConverter.printBase64Binary(userpass
.getBytes());
con.setRequestProperty("Authorization", basicAuth);
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type","Application/x-www-form-urlencoded");
String urlParameters = "grant_type=password&username="+userName+"&password="+password+"&scope=urn:meetingmanagerservice";
// 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);
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());
}
}
I have a code that handle the post and get request . but it should response when the post request come . I dont want to use servlet because it need the tomcat or jetty and its become more complex .
how I should know post request recived ?
private void sendPost() throws Exception {
String url = "https://selfsolve.apple.com/wcResults.do";
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-Language", "en-US,en;q=0.5");
String urlParameters = "sn=C02G8416DRJM&cn=&locale=&caller=&num=12345";
// 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);
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());
}
public static void main(String[] args) throws Exception {
while (true) {
HttpURLConnectionExample http = new HttpURLConnectionExample();
System.out.println("Testing 1 - Send Http GET request");
http.sendGet();
System.out.println("\nTesting 2 - Send Http POST request");
http.sendPost();
}
}
I need to send a post request to a https address. I have a function that sends post messages currectly but i cant seem to make it work for https.
public static String serverCall(String link, String data){
HttpURLConnection connection;
OutputStreamWriter request = null;
URL url = null;
String response = null;
String parameters = data;
try
{
url = new URL(link);
connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type", "text/xml");
connection.setRequestMethod("POST");
request = new OutputStreamWriter(connection.getOutputStream());
request.write(parameters);
request.flush();
request.close();
String line = "";
InputStreamReader isr = new InputStreamReader(connection.getInputStream());
BufferedReader reader = new BufferedReader(isr);
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
// Response from server after process will be stored in response variable.
response = sb.toString();
isr.close();
reader.close();
}
catch(IOException e)
{
// Error
}
return response;
}
i have tryed using HttpsURLConnection insted of HttpURLConnection, i am still getting null from my server.
you should call connect();
....
connection.setRequestMethod("POST");
connection.connect();
....