groovy.json.StreamingJsonBuilderのサンプル

StreamingJsonBuilderSample.groovy

//StreamingJsonBuilderのサンプル
import groovy.json.JsonOutput
import groovy.json.StreamingJsonBuilder

def data = {
  people {
    person {
      firstName 'Yasuharu'
      lastName 'Hayami'
      // Named arguments are valid values for objects too
      address(
        city: 'Niigata',
        country: 'Japan',
        zip: 9501115
      )
      married false
      // a list of values
      conferences 'JGGUG', 'JJUG'
    }
  }
}

//StringWriterを使う
def writer = new StringWriter()
//StreamingJsonBuilderを使う
def builder = new StreamingJsonBuilder(writer)
builder data
println writer.toString()

//結果が等しいことを確認
assert writer.toString() == JsonOutput.toJson(data)