获取Json信息并将其设置到我的ListView中

Question

如何从Json检索所有这些信息并将其插入Flutter应用程序上的ListView？

"acordos": {
"29": {
"0": {
"installment": 0,
"link": "https://hml.use...",
"amount": 55.07,
"amount_paid": 0.0,
"status": "VEN",
"due_date": "2021-05-04",
"receivable_type": "ACO",
"payment_method": "banking_billet",
"acordo": "86",
"created_at": "2021-05-04",
"updated_at": "2021-05-05"
},
"1": {
"installment": 1,
"link": "https://hml.use...",
"amount": 20.62,
"amount_paid": 20.62,
"status": "PAG",
"due_date": "2021-05-04",
"receivable_type": "ACO",
"payment_method": "banking_billet",
"acordo": "86",
"created_at": "2021-05-04",
"updated_at": "2021-05-04"
},
"2": {
"installment": 2,
"link": "https://hml.use...",
"amount": 20.62,
"amount_paid": 20.62,
"status": "PAG",
"due_date": "2021-05-04",
"receivable_type": "ACO",
"payment_method": "banking_billet",
"acordo": "86",
"created_at": "2021-05-04",
"updated_at": "2021-05-04"
},
"3": {
"installment": 3,
"link": "https://hml.use...",
"amount": 20.62,
"amount_paid": 20.62,
"status": "PAG",
"due_date": "2021-05-04",
"receivable_type": "ACO",
"payment_method": "banking_billet",
"acordo": "86",
"created_at": "2021-05-04",
"updated_at": "2021-05-04"
}
}

}，

我以前也做过，但只使用带有"；[]"；在物品方面，我取得了成功，但有了这种Json，我就做不到了。

Answer 1

JSON格式错误，请尝试在开头和结尾添加{}，如

{
"acordos": {
"29": {
"0": {
"installment": 0,
"link": "https://hml.use...",
"amount": 55.07,
"amount_paid": 0.0,
"status": "VEN",
"due_date": "2021-05-04",
"receivable_type": "ACO",
"payment_method": "banking_billet",
"acordo": "86",
"created_at": "2021-05-04",
"updated_at": "2021-05-05"
},
"1": {
"installment": 1,
"link": "https://hml.use...",
"amount": 20.62,
"amount_paid": 20.62,
"status": "PAG",
"due_date": "2021-05-04",
"receivable_type": "ACO",
"payment_method": "banking_billet",
"acordo": "86",
"created_at": "2021-05-04",
"updated_at": "2021-05-04"
},
"2": {
"installment": 2,
"link": "https://hml.use...",
"amount": 20.62,
"amount_paid": 20.62,
"status": "PAG",
"due_date": "2021-05-04",
"receivable_type": "ACO",
"payment_method": "banking_billet",
"acordo": "86",
"created_at": "2021-05-04",
"updated_at": "2021-05-04"
},
"3": {
"installment": 3,
"link": "https://hml.use...",
"amount": 20.62,
"amount_paid": 20.62,
"status": "PAG",
"due_date": "2021-05-04",
"receivable_type": "ACO",
"payment_method": "banking_billet",
"acordo": "86",
"created_at": "2021-05-04",
"updated_at": "2021-05-04"
}
}
}
}

然后，你可以正确地解码

Answer 2

只有一个"类型"；JSON，而您编写的那个是不正确的。

如果你想写正确的JSON，有一个简单的规则：

"property":value

该值可以是数组[]、字符串"&"；，整数等

如果你写的是"；"定制结构"；，然后您应该编写一个特定的解释器，以便到达最后一个元素，该元素是正确编写的JSON。

问题在最后一节。。。它是一个数组，但没有定义[]，因此它不是一个正确的JSON，您不能使用现有的东西来读取它，但您需要自己迭代元素，最后您可以从最后一个｛｝中获得JSON对象