Groovy：如何使用key的值搜索json并在groovy中找到它的子项

lrl1mhuk 于 2022-11-01 发布在其他

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[
{
    "createTime": "2014-05-12 04:51:46.513343",
    "powered": false,
    "description": "s",
    "current": false,
    "children": [
        {
            "createTime": "2014-05-13 03:50:43.050442",
            "powered": false,
            "description": "Snapshot description",
            "current": false,
            "children": [
                {
                    "createTime": "2014-05-13 03:57:08.209319",
                    "powered": false,
                    "description": "s",
                    "current": false,
                    "children": [
                        {
                            "createTime": "2014-05-13 04:27:00.646064",
                            "powered": false,
                            "description": "s",
                            "current": false,
                            "label": "snap3"
                        },
                        {
                            "createTime": "2014-05-13 21:00:16.374178",
                            "powered": false,
                            "description": "sd",
                            "current": false,
                            "label": "sddsds"
                        }
                    ],
                    "label": "snap2"
                }
            ],
            "label": "snapshot-name5"
        },
        {
            "createTime": "2014-05-14 00:49:33.415858",
            "powered": false,
            "description": "a",
            "current": false,
            "children": [
                {
                    "createTime": "2014-05-14 02:35:10.076829",
                    "powered": false,
                    "description": "sdfsdfsdf",
                    "current": true,
                    "label": "ssfsdf"
                }
            ],
            "label": "assa"
        }
    ],
    "label": "snap1"
}
]

这里我有标签'snap2'作为输入，我需要得到它的孩子的标签（snap3，sddsds）作为输出..我如何在groovy中做到这一点？我搜索了很多东西，但我无法找到一个解决方案..
如果我能从你们任何人那里得到建议就太好了。

groovy

来源：https://stackoverflow.com/questions/23654646/groovy-how-do-i-search-json-with-keys-value-and-find-its-children-in-groovy

2条答案

按热度按时间

fdx2calv1#

假设你的json在一个String jsonTxt中，你可以做：

def json = new groovy.json.JsonSlurper().parseText( jsonTxt )

def recursiveChildrenScan( map, key, value ) {
    if( !map ) { null }
    else if( map[ key ] == value ) { map.children }
    else { map.children.findResult { recursiveChildrenScan( it, key, value ) } }
}

println json.findResult { recursiveChildrenScan( it, 'label', 'snap2' ) }?.label

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edqdpe6u2#

find_recursive(new groovy.json.JsonSlurper().parseText(your_json_here))

def find_recursive(a) {
    a.collect {(it.label == "snap2") ? it.children.collect {it.label} : find_recursive(it.children) }.flatten()
}

赞(0）回复(0）举报 2022-11-01

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Groovy：如何使用key的值搜索json并在groovy中找到它的子项

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