Question

我试图在Groovy中生成以下JSON结构，但没有得到我想要的输出。

{
    "settings": [
        {
            "location": "remote",
            "stance": "cold"
        },
        {
            "spareParts": {
                "id": "123" {
                "info": "In stock"
             }
            }
        }
    ]
}

Answer 1

首先，目前问题中的JSON无效。 :)其次，既然Groovy对此有很大的支持，那就不需要丑陋了。：）

您可以使用闭包，地图或组合，请参阅此示例：https://github.com/jonatan-ivanov/groovy-training/blob/master/examples/050_JsonBuilder.groovy

以下是使用地图的（我认为）JSON的示例：

builder = new groovy.json.JsonBuilder(
    settings: [
        [
            location: 'remote',
            stance: 'cold'
        ],
        [
            spareparts: [
                id: '123',
                info: 'In stock'
            ]
        ]
    ]
)

println builder.toPrettyString()

这是它的输出：

{
    "settings": [
        {
            "location": "remote",
            "stance": "cold"
        },
        {
            "spareparts": {
                "id": "123",
                "info": "In stock"
            }
        }
    ]
}

Answer 2

我会为此使用地图和列表的组合。考虑更简单的情况：

import groovy.json.JsonBuilder

def map = [:]
def map1 = [:]

map1['location'] = 'remote'
def list = []
list << ['id' : '123', 'info' : 'In stock']
map1['spareParts'] = list
map['settings'] = [map1]

def jsonBuilder = new JsonBuilder(map)
println jsonBuilder.toPrettyString()

然后是更复杂的情况（这应该重构）：

import groovy.json.JsonBuilder

def map = [:]

def map1 = [:]
map1['location'] = 'remote'
def list1 = []
list1 << ['id' : '123', 'info' : 'In stock']
map1['spareParts'] = list1
map['settings'] = map1

def map2 = [:]
map2['location'] = 'local'
def list2 = []
list2 << ['id' : '505', 'info' : 'none']
map2['spareParts'] = list2

map['settings'] = [map1, map2]

def jsonBuilder = new JsonBuilder(map)
println jsonBuilder.toPrettyString()

使用groovy生成JSON

2 个答案: