How to get data from curl in REST web service in java?

Question

This is my curl command

curl -X PATCH -H  "accept: application/json" -H  "content-type: application/json" -d "{ \"name\": \"guest\" }" --url http://localhost:6080/REST/users/gust.

How do I extract the json data { name: guest} from the request. Does the HttpServletRequest class has any supporting method?.

Thank you.

Answer 1

use Reader:

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    StringBuilder sb = new StringBuilder();
    BufferedReader reader = request.getReader();
    try {
        String line;
        while ((line = reader.readLine()) != null) {
            sb.append(line).append('\n');
        }
    } finally {
        reader.close();
    }
    System.out.println(sb.toString());
}

or you can try parse the json from the request object using a library, an example is org.json which can do this for you quite easily.... here is some sample code to get you started:

import org.json.*;

JSONObject obj = new JSONObject(" .... ");
String pageName = obj.getJSONObject("pageInfo").getString("pageName");

JSONArray arr = obj.getJSONArray("posts");
for (int i = 0; i < arr.length(); i++)
{
    String post_id = arr.getJSONObject(i).getString("post_id");
    ......
}

Downloadable jar: http://mvnrepository.com/artifact/org.json/json