Question

我有以下json返回。我希望得到汽车，汽车，汽车和汽车的所有价值。价格。怎么做到呢？我试过这个但没有工作

$.each(jqXHR.responseJSON.ModelState(index, value), function() {
  alert(jqXHR.responseJSON.ModelState[index].value);
});

{
    "Message": "The request is invalid.",
    "ModelState": { 
        "car": [
            "Required property 'Make' not found in JSON. Path '', line 1, position 57."
        ],
        "car.Make" : [
            "The Make field is required."
        ], 
        "car.Price": [
            "The field Price must be between 0 and 200000."
        ]
    }
}

Answer 1

你会得到3个这样的值：

alert(json.ModelState["car"]);
alert(json.ModelState["car.Make"]);
alert(json.ModelState["car.Price"]);

这也适用于汽车

alert(json.ModelState.car);

由于其他属性包含'。'然后它在名称中查找属性Make而不是属性car.Make因此我们需要使用字符串键。

请注意，在这个小提琴中，最后两个是未定义的。最好不要使用'。'属性名称，如果将在json中使用。

https://jsfiddle.net/1zgybf9m/

要打印modelState和所有汽车中的所有数据，假设您可以拥有多个数据。 IT会更像这样：

https://jsfiddle.net/1zgybf9m/1/

var json = {
    "Message": "The request is invalid.",
    "ModelState": { 
        "car": [
            "1 Required property 'Make' not found in JSON. Path '', line 1, position 57.",
            "2 Required property 'Make' not found in JSON. Path '', line 1, position 57."
        ],
        "car.Make" : [
            "1 The Make field is required.",
            "2 The Make field is required."
        ], 
        "car.Price": [
            "1 The field Price must be between 0 and 200000.",
            "2 The field Price must be between 0 and 200000."
        ]
    }
}

for(var prop in json.ModelState){
    console.log(prop);
    for(var value in json.ModelState[prop]){
       console.log(json.ModelState[prop][value]);
    }
}

Answer 2

拥有一个带有JSON的变量：

var obj= {

        "Message": "The request is invalid.",
        "ModelState": { 
            "car": [
                "Required property 'Make' not found in JSON. Path '', line 1, position 57."
            ],
            "car.Make" : [
                "The Make field is required."
            ], 
            "car.Price": [
                "The field Price must be between 0 and 200000."
            ]
        }
    };

通过ModelState进行循环访问：

for (var prop in obj.ModelState){
    for (var i=0; i<obj.ModelState[prop].length; i++){
        console.log(obj.ModelState[prop][i]);    
    }    
}

小提琴：http://jsfiddle.net/m8gq0Lew/2/

还建议不要在JSON密钥中使用.

从嵌套响应中获取json值

2 个答案: