我有两个实体之间的一系列对话,每个实体都根据父级和级别进行区分。每个请求后面都会跟着一个响应对象。示例输入结构如下所示
[
{ "message": "one", "messageSequence": 0, "level": 1, "Parent": "", "messageType": "request" },
{ "message": "two", "messageType": "response", "messageSequence": 1 },
{ "message": "three-1 (3.1)", "messageSequence": 2, "level": 2, "Parent": 1, "messageType": "request" },
{ "message": "four", "messageType": "response", "messageSequence": 3 },
{ "message": "five-1 (5.1)", "messageSequence": 4, "level": 3, "Parent": 2, "messageType": "request" },
{ "message": "six", "messageType": "response", "messageSequence": 5 },
{ "message": "five-2 (5.2)", "messageSequence": 6, "level": 3, "Parent": 2, "messageType": "request" },
{ "message": "seven", "messageType": "response", "messageSequence": 7 },
{ "message": "three-2 (3.2)", "messageSequence": 8, "level": 2, "Parent": 1, "messageType": "request" },
{ "message": "eight", "messageType": "response", "messageSequence": 9 },
{ "message": "nine-1 (9.1)", "messageSequence": 10, "level": 3, "Parent": 2, "messageType": "request" },
{ "message": "ten", "messageType": "response", "messageSequence": 11 },
{ "message": "nine-2 (9.2) ", "messageSequence": 12, "level": 3, "Parent": 2, "messageType": "request" },
{ "message": "eleven", "messageType": "response", "messageSequence": 13 }
]
我正在尝试根据请求及其相应的响应生成一个 json。下面是我用来实现它的方法
var prevLevel;
var lastUserItem = 0;
function convertToJson(array) {
var map = {};
for (var i = 0; i < array.length; i++) {
var obj = array[i];
if (array[i].messageType == "request")
obj.request = [];
else
obj.response = {};
if (obj.level) {
prevLevel = obj.level
map[obj.level] = obj;
var parent = obj.Parent || '-';
if (!map[parent]) {
map[parent] = {
request: []
};
}
delete obj.Parent;
delete obj.level;
delete obj.messageType;
delete obj.messageSequence;
map[parent].request.push(obj);
lastUserItem = map[parent].request.length - 1;
} else {
delete obj.Parent;
delete obj.level;
delete obj.messageType;
delete obj.messageSequence;
if (map[prevLevel].request && map[prevLevel].request.length > 0) {
map[prevLevel].request[lastUserItem].response = {};
map[prevLevel].request[lastUserItem].response = obj;
} else {
map[prevLevel].response = {};
map[prevLevel].response = obj;
}
}
}
return map['-'].request;
}
var r = convertToJson(messages);
console.log(JSON.stringify(r));
我得到的响应不是基于请求实体构建的。 上述方法的响应
[
{
"message": "one",
"request": [
{
"message": "three-1 (3.1)",
"request": [
{
"message": "five-1 (5.1)",
"request": [],
"response":
{
"message": "six",
"response":
{}
}
},
{
"message": "five-2 (5.2)",
"request": [],
"response":
{
"message": "seven",
"response":
{}
}
}],
"response":
{
"message": "four",
"response":
{}
}
},
{
"message": "three-2 (3.2)",
"request": [
{
"message": "nine-1 (9.1)",
"request": [],
"response":
{
"message": "ten",
"response":
{}
}
},
{
"message": "nine-2 (9.2) ",
"request": [],
"response":
{
"message": "eleven",
"response":
{}
}
}],
"response":
{
"message": "eight",
"response":
{}
}
}],
"response":
{
"message": "two",
"response":
{}
}
}]
Response 对象正在分离。预期的 json 输出如下所示
{
"request": [{
"message": "one",
"response": {
"message": "two"
"request": [{
"message": "three-1 (3.1)",
"response": {
"message": "four"
"request": [{
"message": "five-1 (5.1)",
"response": {
"message": "six"
}
},
{
"message": "five-2 (5.2)",
"response": {
"message": "seven"
}
}
]
}
},
{
"message": "three-2 (3.2)",
"response": {
"message": "eight",
"request": [{
"message": "nine-1 (9.1)",
"response": {
"message": "ten"
}
},
{
"message": "nine-2 (9.2) ",
"response": {
"message": "eleven"
}
}
]
}
}
]
}
}]
}
请指出我哪里出错了。在输入结构中进行任何更改以获得所需的输出。
最佳答案
如果 'response'
类型总是紧跟在 'request'
之后,那么您可以构建一个新对象并向前看下一个对象并将其插入作为结果将消息发送到新对象中。
该提案使用一个数组作为级别引用,并更新该数组和结果中的级别。
var data = [{ message: "one", messageSequence: 0, level: 1, Parent: "", messageType: "request" }, { message: "two", messageType: "response", messageSequence: 1 }, { message: "three-1 (3.1)", messageSequence: 2, level: 2, Parent: 1, messageType: "request" }, { message: "four", messageType: "response", messageSequence: 3 }, { message: "five-1 (5.1)", messageSequence: 4, level: 3, Parent: 2, messageType: "request" }, { message: "six", messageType: "response", messageSequence: 5 }, { message: "five-2 (5.2)", messageSequence: 6, level: 3, Parent: 2, messageType: "request" }, { message: "seven", messageType: "response", messageSequence: 7 }, { message: "three-2 (3.2)", messageSequence: 8, level: 2, Parent: 1, messageType: "request" }, { message: "eight", messageType: "response", messageSequence: 9 }, { message: "nine-1 (9.1)", messageSequence: 10, level: 3, Parent: 2, messageType: "request" }, { message: "ten", messageType: "response", messageSequence: 11 }, { message: "nine-2 (9.2) ", messageSequence: 12, level: 3, Parent: 2, messageType: "request" }, { message: "eleven", messageType: "response", messageSequence: 13 }],
result = [],
levels = [result];
data.forEach(function (o, i, a) {
var level = o.level - 1, temp;
if (o.messageType !== 'request') {
return;
}
temp = { message: o.message, response: { message: a[i + 1].message, request: [] } };
levels[level + 1] = temp.response.request;
levels[level].push(temp);
});
console.log(result);
.as-console-wrapper { max-height: 100% !important; top: 0; }
关于javascript - 在javascript中将平面数组转换为json,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49232720/