i / o问题没有为类org.json.JSONObject找到序列化程序，也没有发现创建BeanSerializer的属性

Question

not sure whats going on, the full error is:

Problem with i/o No serializer found for class org.json.JSONObject and no properties        discovered to create BeanSerializer (to avoid exception, disable SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS) )

I am trying to send a PUT request to a RESTful service. I am parsing a POST And sending modified key/value pairs for 'ID' and 'enabled' for the PUT.

@Test(dependsOnMethods= {"Post"})
public void Put() throws IOException  {

logger.logTestActivity("Testing FORM data POST using Excel file");
requestBuilder = new RequestSpecBuilder();

String jsonString = "";
boolean enabledModify = false;

try {
 BufferedReader in = new BufferedReader(new FileReader(
 xmlTest.getParameter("json-post")));

String str;

while ((str = in.readLine()) != null) {
      jsonString += str;
        }

JSONObject jsonObjPut = new JSONObject(jsonString);
jsonObjPut.put("_id", createUserId);
jsonObjPut.put("enabled",enabledModify);

    System.out.println(jsonObjPut.toString());
in.close();

    requestBuilder.setContentType(ContentType.JSON);
    requestSpecification = requestBuilder.build();
    responseBuilder.expectStatusCode(Integer.parseInt(xmlTest
    .getParameter("http-status-code-200")));
    responseBuilder.expectContentType(ContentType.JSON);
    responseSpecification = responseBuilder.build();    
System.out.println(createUserId);

String responseJson = given().body(jsonObjPut).         
when().put("/" + createUserId).asString();

    System.out.println(responseJson);

logger.logTestActivity("Finished testing FORM data POST using Excel file");
} catch (AssertionError e ) {
  logger.logTestActivity(
        "Error testing FORM data post: " + e.getMessage(),logger.ERROR);

      System.out.println("REST URL: " + RestAssured.baseURI + " "
                + RestAssured.port + " " + RestAssured.basePath );
  Assert.fail("Error testing FORM data POST: " + e.getMessage());
        throw e;
} catch (IOException | JSONException e) {
   System.out.println("Problem with i/o" + e.getMessage()); 
    }
}

createUserID is a global variable that is the ID parsed from the POST.

JSON file that is getting parsed looks like this:

{
"enabled" : false,
"_id" : "fdse332a-22432d-4432b"
}

In a before test method I am setting up the restassured with all the appropriate url endpoints...

Also, the PUT is also failing, with a NULLPointerException Error. That may be another post in the future!

Answer 1

Solution: I was not converting my JSON object to a string when passing to restassured.

String responseJson = given().body(jsonObjPut.toString).

This did the trick. I now modify my existing json with generated ID and do a successful PUT on the RESTful service.

Answer 2

I was also facing same issue with java Spring rest Api. It was throwing BeanSerializerExcption. Use JsonNODE class instead of JSONObject .