grails处置json数据

grails处理json数据
01import grails.converters.JSON02?03class User{04???String nickname05???Integer age06}07class TestController{08???def listAsJson = {09??????def output = "{'nickname':'东瓜','age':'16'}"10??????render output as JSON11???}12???def listAsJSON2 = {13??????def output = "{'nickname':'东瓜','age':'16'}"14??????render JSON.parse(output)15???}16???def listAsJSON3 = {17??????def user = User.get(1)18??????render user as JSON19???}20???def listAsJSON4 = {21??????def outputMap = ['1':1,'2':2]22??????render outputMap as JSON23???}24}