javascript - 放(存)json数据

Question

我有 json 数据:

{ "products": [

    {
        "productId" : 0,
        "productImg" : "../img/product-photo1.png",
        "productName" : "New Balance",
        "productNameNumber" : "(1st)",
        "productSeria" : "Ref. 2514/302",
        "productColor" : "Grey",
        "productSize" : "38",
        "productAmount" : "€32.20"
    },
    {
        "productId" : 1,
        "productImg" : "../img/product-photo2.png",
        "productName" : "New Balance",
        "productNameNumber" : "(2st)",
        "productSeria" : "Ref. 2611/502",
        "productColor" : "White",
        "productSize" : "39",
        "productAmount" : "€20.10"
    }
]}

我需要将这些数据放到本地存储中。我已经找到了足够的信息来说明如何将数据从 js 对象放入本地存储，但是如何将数据从 json 文件中放入我还没有找到。请帮我找出来。

Answer 1

使用 JSON.stringify() 将您的对象转换为字符串。然后保存到localStorage。

例如:

var obj = { 
    "products": [
    {
        "productId" : 0,
        "productImg" : "../img/product-photo1.png",
        "productName" : "New Balance",
        "productNameNumber" : "(1st)",
        "productSeria" : "Ref. 2514/302",
        "productColor" : "Grey",
        "productSize" : "38",
        "productAmount" : "€32.20"
    },
    {
        "productId" : 1,
        "productImg" : "../img/product-photo2.png",
        "productName" : "New Balance",
        "productNameNumber" : "(2st)",
        "productSeria" : "Ref. 2611/502",
        "productColor" : "White",
        "productSize" : "39",
        "productAmount" : "€20.10"
    }
    ]
};

localStorage.setItem('someKey', JSON.stringify(obj));

console.log(JSON.parse(localStorage.getItem('someKey')));