Question

我有一个JSON，如下所示

  var json =  {
        "name": "Soft Drinks",
        "T2": [
            {
                "name": "Bottled",
                "T3": [
                    {
                        "name": "Apple",
                        "leaf": [
                            {
                                "name": "Apple 500 ML"
                            },
                            {
                                "name": "Apple 1 Ltr"
                            }
                        ]
                    }
                ]
            },
            {
                "name": "Fountain",
                "T3": [
                    {
                        "name": "Apple",
                        "leaf": [
                            {
                                "name": "Apple Regular, 500 ML"
                            }
                        ]
                    }
                ]
            },
            {
                "name": "Tin",
                "T3": [
                    {
                        "name": "Apple",
                        "leaf": [
                            {
                                "name": "Apple Regular, 300 ML"
                            }
                        ]
                    }
                ]
            }
        ]
    }

我试图通过提供路径来搜索JSON

案例1：

例如，如果我提供路径为

var patharray = ["Soft Drinks","Bottled"] ; //(Bottled doesn't have leaf )

我需要的输出是Apple

案例2：

例如，如果我提供路径为

var patharray = ["Soft Drinks","Bottled","Apple"] ; //(Apple has got leaf )

我需要的输出是

 "leaf": [
                            {
                                "name": "Apple 500 ML"
                            },
                            {
                                "name": "Apple 1 Ltr"
                            }
                        ]

我尝试使用以下方法，但现在它无法正常工作。

function findElement(obj, patharray, index) {
    var res = '';
    if(index < patharray.length) {
        var searchStr = patharray[index];
        index++;
        for(each in obj) {
            if(obj[each] instanceof Array) {
                var found = false;
                for(var i=0;i<obj[each].length;i++) {
                    if(obj[each][i].name == searchStr) {
                        res = obj[each][i];
                        if(index<patharray.length) {
                            console.log('search again')
                            res = findElement(obj[each][i], patharray, index);
                        }
                        found = true
                        break;
                    }
                }
                if(found) {
                    break;
                }
            }
        }   
        return res
    }
}
var patharray = ["Ice creams","Stick","Frosty"] ;

console.log(findElement(json, patharray, 0));

Answer 1

查看此问题的答案 - JSONPath or other XPath like utility for JSON/Javascript; or Jquery JSON

有几种选择：JSONSelect，Defiant.js，JSPath

搜索JSON字符串

1 个答案: