RESTful Java Web Services - Third Edition

Full Jackson data binding with specialized objects

If the JSON data format, which a client receives, is well-structured, you can directly map the content to a concrete Java class. A full data binding solution fits well in such a scenario. For instance, you can create an Employee class for representing the employee data presented in the JSON format as long as the JSON content structure does not change. The following example uses the data binding offering from Jackson to convert the JSON content from the emp.json file into an Employee object. This example calls readValue(InputStream src, Class<T> valueType) on ObjectMapper to get the Java representation for the JSON content:

// emp.json file has following contents: //{"employeeId":100,"firstName":"John","lastName":"Chen"} ...