CODEWITHSUNDEEP
javajsoncharacter-encodingjackson
Dattatreya Kugve
Dattatreya Kugve

Reputation: 377

Jackson ObjectMapper is turning euro symbol into junk character

I have a object which has a field called currencySymbol which stores Euro symbol in one of its property of String type. When I convert this Object to json using Object mapper euro symbol is converted into a junk character. Below is the code I am using. Do I need to do any character encoding configuration before converting to JSON

public String convertObjectToJson(Object obj) {
    long start = System.currentTimeMillis();
    objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    String jsonBody = null;
    try {
        jsonBody = objectMapper.writeValueAsString(obj);
    } catch (JsonProcessingException e) {
        logger.info(e.getMessage(), e.fillInStackTrace());
    }
    logger.debug("Conversion time for object to json :: " + (System.currentTimeMillis() - start) / 1000d);
    return jsonBody;
}

Input object :

{"currencySymbol":"₹","currencyFormat":"₹0;-₹0"}

JSON output:

{"currencySymbol":"Ç","currencyFormat":"Ç0;-Ç0"}

As you can see post conversion 'Indian Rupee' symbol ₹ is turned to junk character. Same thing happens for Euro € symbol as well

Upvotes: 2

Views: 1893

Answers (2)

Ricky Sixx
Ricky Sixx

Reputation: 653

I'll post an answer because it may be useful to someone else.

I had a similar problem, but it turned out to not be Jackson's fault.

I was trying to serialize a string which contained the € character to a JSON string using Jackson library (version 2.8.6).

I've tried to debug my code to see the value of the serialized JSON string and it contained the € character, but in the console and in the log files I've always seen a junk character.

So it turned out to be a problem on the encoding used by my console and by my logging framework.

Just for reference, here is an answer on how to explicitly set the encoding used by a Logback appender. After setting this encoding, I was able to see the € symbol in my log files.

Upvotes: 1

Dattatreya Kugve
Dattatreya Kugve

Reputation: 377

I am able to resolve this issue by setting config parameter JsonGenerator.Feature.ESCAPE_NON_ASCII to true. Below is the working code

public String convertObjectToJson(Object obj) {
    long start = System.currentTimeMillis();
    objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    objectMapper.getFactory().configure(JsonGenerator.Feature.ESCAPE_NON_ASCII, true);
    String jsonBody = null;
    try {
        jsonBody = objectMapper.writeValueAsString(obj);
    } catch (JsonProcessingException e) {
        logger.info(e.getMessage(), e.fillInStackTrace());
    }
    logger.debug("Conversion time for object to json :: " + (System.currentTimeMillis() - start) / 1000d);
    return jsonBody;
}

Upvotes: 1

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