java - Android 中 JSON 将子树提取为字符串

Question

我有以下 json 结构:

 "interpretation": {
        "ComplexSearchRequest": {
            "BoostLanguage": 0,
            "Clauses": {
                "MustClauses": [
                    {
                        "Match": {
                            "Attribute": "Channel",
                            "Operator": "None",
                            "Value": "n twenty four c h"
                        }
                    }
                ],
                "MustNotClauses": []
            },
            "FilterLanguages": [],
            "ItemFilters": [],
            "MaxResults": 10
        },
        "GraphManagerRequestId": "baf28b69-0806-4725-9fb4-1d2acd1944ea",
        "GraphManagerRequestLanguage": "de",
        "Type": "Search"
    },

如何提取整个节点“Clauses”并将其转换为字符串？输出应该是:

"Clauses": {
                "MustClauses": [
                    {
                        "Match": {
                            "Attribute": "Channel",
                            "Operator": "None",
                            "Value": "n twenty four c h"
                        }
                    }
                ],
                "MustNotClauses": []
            },

需要一个最佳解决方案。

为了简单解析，我使用 JsonReader。

Answer 1

假设您有带有名称解释的 JSONObject，那么以下是获取子句的简单方法:

JSONObject complexSearchRequest = interpretation.getJSONObject("ComplexSearchRequest");
JSONObject clauses = complexSearchRequest.getJSONObject("Clauses");
Log.d("clauses",clauses.toString());