Issue
Good afternoon everyone.
I'm new in using both java/groovy and PHP and was working on a attempting a basic method to send a json message to the a php file.
I have a php file which is as follows
<?php
$query = "Hi, my name is: '".$_POST["name"]."'";
echo $query;
?>
and my java/groovy file is as follows
post = (new URL("http://localhost/Ping/Post.php")).openConnection()
message = '{"name":"Max Weiver"}';
println("This is the message = "+message);
post.setRequestMethod("POST");
post.setRequestProperty("Content-Type","application/json");
post.setDoOutput(true);
post.getOutputStream().write((message).getBytes("UTF-8"));
println("This is the detailed message: "+post);
postResponseCode = post.getResponseCode();
println "Response Code: ${postResponseCode}"
postResponseData = post.getInputStream().getText();
println "Response Data: ${postResponseData}"
And I just want the groovy console to output something like this
Hi, my name is: 'Max Weiver'
However, I keep getting this error:
Response Code: 200
Response Data: <br />
<b>Notice</b>: Undefined index: name in <b>C:\xampp\htdocs\Ping\Post.php</b> on line <b>3</b><br />
Hi, my name is: ''
I'm aware that there are solutions to be made within the php file to sort this problem (like using the json_decode and the isset, etc). But I'm wondering whether there modification needed within the groovy/java file to successfully send the POST message without changing the php script?
*Note: As I said earlier, I'm sort of new in both languages so do let me know if I'm missing something obvious :)
Thank you
Solution
In php _POST is an associative array of variables passed to the current script via the HTTP POST method when using application/x-www-form-urlencoded or multipart/form-data as the HTTP Content-Type in the request.
https://www.php.net/manual/en/reserved.variables.post.php
to make groovy call successful the easiest way to pass parameters in
application/x-www-form-urlencoded format:
name1=value1&name2=value2&...
changed groovy code:
def post = new URL("http://httpbin.org/post").openConnection()
def body = [name: "Max Weiver"]
//convert map to x-www-form-urlencoded
body = body.collect{k,v-> "$k=${URLEncoder.encode(v,'UTF-8')}" }.join('&')
println("This is the body = "+body);
post.setRequestMethod("POST")
post.setRequestProperty("Content-Type","application/x-www-form-urlencoded")
post.setDoOutput(true)
post.getOutputStream().write(body.getBytes("US-ASCII"))
def postResponseCode = post.getResponseCode()
println "Response Code: ${postResponseCode}"
def postResponseData = post.getInputStream().getText()
println "Response Data: ${postResponseData}"
Answered By - daggett
Answer Checked By - Candace Johnson (JavaFixing Volunteer)
