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json转树状结构

json转树状结构

作者: 123困兽 | 来源:发表于2018-11-29 20:06 被阅读0次

    原数据格式

    varjsonData = eval('[{"id":"4","pid":"1","name":"大家电"},  {"id":"5","pid":"1","name":"生活电器"},  {"id":"1","pid":"0","name":"家用电器"},  {"id":"2","pid":"0","name":"服饰"},  {"id":"3","pid":"0","name":"化妆"},  {"id":"7","pid":"4","name":"空调"}, {"id":"8","pid":"4","name":"冰箱"},  {"id":"9","pid":"4","name":"洗衣机"},  {"id":"10","pid":"4","name":"热水器"},  {"id":"11","pid":"3","name":"面部护理"},  {"id":"12","pid":"3","name":"口腔护理"},  {"id":"13","pid":"2","name":"男装"},  {"id":"14","pid":"2","name":"女装"},  {"id":"15","pid":"7","name":"海尔空调"},  {"id":"16","pid":"7","name":"美的空调"}, {"id":"19","pid":"5","name":"加湿器"},  {"id":"20","pid":"5","name":"电熨斗"}  ]');

    定义js方法:

    function transData(a, idStr, pidStr, chindrenStr){   

                    varr = [], hash = {}, id = idStr, pid = pidStr, children = chindrenStr, i = 0, j = 0, len = a.length;   

                    for(; i < len; i++){   

                        hash[a[i][id]] = a[i];   

                    }   

                    for(; j < len; j++){   

                        varaVal = a[j], hashVP = hash[aVal[pid]];   

                        if(hashVP){   

                            !hashVP[children] && (hashVP[children] = []);   

                            hashVP[children].push(aVal);   

                        }else{   

                            r.push(aVal);   

                        }   

                    }   

                    return r;   

                } 

    调用js方法及转换的数据格式

    varjsonDataTree = transData(jsonData, 'id', 'pid', 'chindren');

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