使用java获取复杂的JSON结构

Question

我已经粘贴了一个示例JSON结构，我正在尝试使用java程序实现它。最后，输出应该是JSONObject。我试着使用地图，但如果我没有出错，它会变得非常复杂

{
"name": "flare",
"children": [
    {
    "name": "analytics",
    "children": [
        {
        "name": "cluster",
        "children": [
            {"name": "AgglomerativeCluster"},
            {"name": "CommunityStructure"},
            {"name": "HierarchicalCluster"},
            {"name": "MergeEdge"}
        ]
        }]
    },
    {
    "name": "graph",
    "children": [
        {"name": "BetweennessCentrality"},
        {"name": "LinkDistance"},
        {"name": "MaxFlowMinCut"},
        {"name": "ShortestPaths"},
        {"name": "SpanningTree"}
    ]
    }
]
}

Answer 1

使用GSON库很容易。创建带有同一类数组属性的Person类

class Person {
    private String name;
    private Person[] children;

    //getters

    //setters
}

然后，使用它从json获取实例

// Create person
Person person = new Gson().fromJson(jsonString, Person.class);
// Get children
Person[] childrens = person.getChildren();