《Groovy极简教程》第12章 Groovy的JSON包《Groovy极简教程》JsonOutputJsonSlurper

class Person {
    int id
    String name
    List<Book> books

    @Override
    String toString() {
        "Book(id;$id,name:$name,books:${books})"
    }
}

class Book {
    int id
    String name

    @Override
    String toString() {
        "Book(id:$id,name:$name)"
    }
}

    static void parseSimpleObject() {
        def book = new Book(id: 1, name: 'Thinking in Java')
        def jsonOutput = new JsonOutput()
        def result = jsonOutput.toJson(book)
        println(result)

        //格式化输出
        println(jsonOutput.prettyPrint(result))
    }

//结果
{"id":1,"name":"Thinking in Java"}
{
    "id": 1,
    "name": "Thinking in Java"
}

    static void parseSimpleJson() {
        def text = '{"id":1,"name":"Thinking in Java"}'
        def jsonSlurper = new JsonSlurper()

        //获取到的是Map对象
        def map = jsonSlurper.parseText(text)
        println(map)
        //将Map转换为实际对象
        def obj = new Book(map)
        println(obj)
    }