JavaScript：解析 jsonstring

Question

我有一个由 C# razor 页面方法返回的 json 字符串，如下所示：

var data = 
{"Transactions":"[{\"BatchID\":\"814C87D9-7037-4E66-97EC-5861D2712997\",\"BatchOpenStatus\":\"Y\",\"Time\":\"2021-09-02T10:41:26.318\",\"recType\":\"Trip\",\"RevisionNum\":0,\"ID\":\"e1ddc1ac-0c0c-11ec-b55b-e2b9dfec84c8\",\"Payment Type\":\"2\",\"Tag Agency\":\"0046\",\"Transponder ID\":\"309999\",\"Plate#\":\"\",\"State\":\"\",\"Type\":\"PAS\",\"Class\":\"4\",\"AVC Class\":\"4\",\"VehSpeed\":\" \",\"TagStatus\":\"0\",\"TagClass\":\"2\",\"Plaza\":\"072\",\"Lane\":\"41\"},{\"BatchID\":\"814C87D9-7037-4E66-97EC-5861D2712997\",\"BatchOpenStatus\":\"Y\",\"Time\":\"2021-09-02T10:53:26.229\",\"recType\":\"Trip\",\"RevisionNum\":0,\"ID\":\"7c5dccbe-0c0e-11ec-b55b-e2b9dfec84c8\",\"Payment Type\":\"2\",\"Tag Agency\":\"0046\",\"Transponder ID\":\"309119\",\"Plate#\":\"JSON06\",\"State\":\"\",\"Type\":\"PAS\",\"Class\":\"4\",\"AVC Class\":\"4\",\"VehSpeed\":\" \",\"TagStatus\":\"0\",\"TagClass\":\"2\",\"Plaza\":\"072\",\"Lane\":\"41\"},{\"BatchID\":\"814C87D9-7037-4E66-97EC-5861D2712997\",\"BatchOpenStatus\":\"Y\",\"Time\":\"2021-09-02T13:05:26.17\",\"recType\":\"Trip\",\"RevisionNum\":0,\"ID\":\"fb707240-0c20-11ec-b55b-e2b9dfec84c8\",\"Payment Type\":\"2\",\"Tag Agency\":\"0046\",\"Transponder ID\":\"377159\",\"Plate#\":\"470E03\",\"State\":\"\",\"Type\":\"PAS\",\"Class\":\"2\",\"AVC Class\":\"2\",\"VehSpeed\":\" \",\"TagStatus\":\"0\",\"TagClass\":\"2\",\"Plaza\":\"040\",\"Lane\":\"2\"}]","ReturnCode":0,"ReturnString":"Succesful"}

如何提取 javascript 中的事务？ 这是我当前的代码：

var _transactions = [];
var allData= jQuery.parseJSON(data);
_transactions = JSON.stringify(eval("(" + allData.Transactions + ")")); 

此代码适用于少量“交易”，但不适用于数千条记录。

任何帮助表示赞赏。

Answer 1

不清楚你为什么使用 eval 甚至为什么 jQuery

这是普通的JS

 const transactions = JSON.parse(data.Transactions) console.log(transactions) // example of getting the item values - use [""] for strings with spaces transactions.forEach(transaction => console.log(transaction["Transponder ID"]))

 <script> const data = {"Transactions":"[{\"BatchID\":\"814C87D9-7037-4E66-97EC-5861D2712997\",\"BatchOpenStatus\":\"Y\",\"Time\":\"2021-09-02T10:41:26.318\",\"recType\":\"Trip\",\"RevisionNum\":0,\"ID\":\"e1ddc1ac-0c0c-11ec-b55b-e2b9dfec84c8\",\"Payment Type\":\"2\",\"Tag Agency\":\"0046\",\"Transponder ID\":\"309999\",\"Plate#\":\"\",\"State\":\"\",\"Type\":\"PAS\",\"Class\":\"4\",\"AVC Class\":\"4\",\"VehSpeed\":\" \",\"TagStatus\":\"0\",\"TagClass\":\"2\",\"Plaza\":\"072\",\"Lane\":\"41\"},{\"BatchID\":\"814C87D9-7037-4E66-97EC-5861D2712997\",\"BatchOpenStatus\":\"Y\",\"Time\":\"2021-09-02T10:53:26.229\",\"recType\":\"Trip\",\"RevisionNum\":0,\"ID\":\"7c5dccbe-0c0e-11ec-b55b-e2b9dfec84c8\",\"Payment Type\":\"2\",\"Tag Agency\":\"0046\",\"Transponder ID\":\"309119\",\"Plate#\":\"JSON06\",\"State\":\"\",\"Type\":\"PAS\",\"Class\":\"4\",\"AVC Class\":\"4\",\"VehSpeed\":\" \",\"TagStatus\":\"0\",\"TagClass\":\"2\",\"Plaza\":\"072\",\"Lane\":\"41\"},{\"BatchID\":\"814C87D9-7037-4E66-97EC-5861D2712997\",\"BatchOpenStatus\":\"Y\",\"Time\":\"2021-09-02T13:05:26.17\",\"recType\":\"Trip\",\"RevisionNum\":0,\"ID\":\"fb707240-0c20-11ec-b55b-e2b9dfec84c8\",\"Payment Type\":\"2\",\"Tag Agency\":\"0046\",\"Transponder ID\":\"377159\",\"Plate#\":\"470E03\",\"State\":\"\",\"Type\":\"PAS\",\"Class\":\"2\",\"AVC Class\":\"2\",\"VehSpeed\":\" \",\"TagStatus\":\"0\",\"TagClass\":\"2\",\"Plaza\":\"040\",\"Lane\":\"2\"}]","ReturnCode":0,"ReturnString":"Succesful"}</script>