CODEWITHSUNDEEP
javajsonjackson
user
user

Reputation: 49

convert to string to json

I have a hash map and i was added 2 values into that map. After that i want to convert to json, but it is showing as string after converting json using jackson. below is my code :

Map<String, Map<String, String>> attributes = new HashMap<String, Map<String, String>>();
Map<String, String> values = new HashMap<String, String>();
Map<String, String> metadata = new HashMap<String, String>();
metadata.put("type", test.getType().toString());
metadata.put("id", test.getId());
String metadataStr = metadata.toString();
String replaceStr = metadataStr.replace("=", ":");
values.put("metadata", replaceStr);
attributes.put("caption", values);

Here I am converting attributes to json like below :

String json = this.getObjectMapper().writeValueAsString(attributes);

{
  "Test": {
    "metadata": "{id:f600b8fa-77cf-4225-ba42-39135909c7ce, type:test}",
   }
}

But i need like below :

{
  "Test": {
    "metadata": {
               "id":"f600b8fa-77cf-4225-ba42-39135909c7ce",
                "type":"test" }
   }
}

Can any one help me out this. Thanks in Advance.

Upvotes: 0

Views: 147

Answers (1)

Sergey Bzhezitskiy
Sergey Bzhezitskiy

Reputation: 255

The root of cause is in type of values and this line: 

values.put("metadata", replaceStr);

Need to have:

Map<String, Map<String, Map<String, String>>> attributes = new HashMap<String, Map<String, Map<String, String>>>();
Map<String, Map<String, String>> values = new HashMap<String, Map<String, String>>();
Map<String, String> metadata = new HashMap<String, String>();
metadata.put("type", test.getType().toString());
metadata.put("id", test.getId());
values.put("metadata", metadata);
attributes.put("caption", values);

Upvotes: 1

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