Groovy Json生成器和解析器

import groovy.json.JsonBuilder
import groovy.json.JsonOutput
import groovy.json.JsonSlurper

//Json生成器
def builder = new JsonBuilder()
builder.json {
    first 'lance'
    last 'haha'
}
println builder.toString()
def p = new Person(name: 'lanch_',age: 18)
def b = new JsonBuilder(p)
println b.toString()
println JsonOutput.toJson(p)
println JsonOutput.prettyPrint(b.toString())

//Json解析器 JsonSlurper
def slurper = new JsonSlurper()
def text = slurper.parseText(b.toString())
println text
println text.name
println text.age

Person person = slurper.parseText(b.toString())
println person.name
println person.age