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javajsonspring-bootjacksonfasterxml

Jackson Converting String to Object

Link.java

@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonPropertyOrder({ "rel", "href","method" })
public class Link {

    @JsonProperty("rel")
    private String rel;
    @JsonProperty("href")
    private String href;
    @JsonProperty("method")
    private Method method;

    @Override
    public String toString() {
        return ToStringBuilder.reflectionToString(this);
    }
}

I have this third party class with fasterxml jackson annotations. I can convert a given object into a string using the specified toString() method. Is there any way of using that String to get an object of type Link?

Note: The object itself has an embedded object (which has several more embedded objects) and these too needs to be converted into a Method object from the string itself.

Solution

  • Just putting the comment by @pvpkiran in an answer.

    Use ObjectMapper class from com.fasterxml.jackson.databind

    ObjectMapper objectMapper = new ObjectMapper();

    Converting from Object to String:

    String jsonString = objectMapper.writeValueAsString(link);

    Converting from String to Object:

    Link link = objectMapper.readValue(jsonString, type)