使用javascript的JSON解析返回[object]
我正在制作一个简单的网页,将地址作为输入,并使用google使用javascript的JSON解析返回[object],javascript,jquery,json,google-maps,Javascript,Jquery,Json,Google Maps,我正在制作一个简单的网页,将地址作为输入,并使用googlegeocodeapi返回该地址的纬度和经度。我无法处理结果。我想从JSON中选择特定的元素,即从google返回的响应中选择纬度和经度。请帮助我,我不熟悉JSON。以下是JSON的JSON: { "results" : [ { "address_components" : [ { "long_name" : "Jabalpur", "short_na
geocode
api
返回该地址的纬度和经度。我无法处理结果。我想从JSON
中选择特定的元素,即从google返回的响应中选择纬度和经度。请帮助我,我不熟悉JSON
。以下是JSON的JSON
:
{
"results" : [
{
"address_components" : [
{
"long_name" : "Jabalpur",
"short_name" : "Jabalpur",
"types" : [ "locality", "political" ]
},
{
"long_name" : "Jabalpur",
"short_name" : "Jabalpur",
"types" : [ "administrative_area_level_2", "political" ]
},
{
"long_name" : "Madhya Pradesh",
"short_name" : "MP",
"types" : [ "administrative_area_level_1", "political" ]
},
{
"long_name" : "India",
"short_name" : "IN",
"types" : [ "country", "political" ]
},
{
"long_name" : "482001",
"short_name" : "482001",
"types" : [ "postal_code" ]
}
],
"formatted_address" : "Jabalpur, Madhya Pradesh 482001, India",
"geometry" : {
"bounds" : {
"northeast" : {
"lat" : 23.246354,
"lng" : 80.08003219999999
},
"southwest" : {
"lat" : 23.1050362,
"lng" : 79.85747339999999
}
},
"location" : {
"lat" : 23.181467,
"lng" : 79.98640709999999
},
"location_type" : "APPROXIMATE",
"viewport" : {
"northeast" : {
"lat" : 23.246354,
"lng" : 80.08003219999999
},
"southwest" : {
"lat" : 23.1050362,
"lng" : 79.85747339999999
}
}
},
"place_id" : "ChIJfam2DxqugTkRueNDvBYGAkQ",
"types" : [ "locality", "political" ]
}
],
"status" : "OK"
}
我的代码是:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Geocode</title>
</head>
<body>
Enter Address<input type="text" id="UserInput">
Go<input type="button" onclick="geoCode()">
<script>
function geoCode(){
var UserInput = document.getElementById('UserInput').valueOf();
var xmlhttp = new XMLHttpRequest();
var ApiKey = 'AIzaSyDZP2E_5LLE6VOwIbrNImS32sAx5rsgEbU';
var myArr;
var url = 'https://maps.googleapis.com/maps/api/geocode/json?address='+UserInput.value+'&key='+ApiKey;
var xhr = new XMLHttpRequest();
xhr.open('GET',url,true);
xhr.send();
xhr.onreadystatechange = processRequest;
function processRequest() {
if(xhr.readyState==4 && xhr.status==200)
{
var response = JSON.parse(xhr.responseText);
alert(response["results"][0][0]);
}
}
}
地理编码
输入地址
去
函数geoCode(){
var UserInput=document.getElementById('UserInput').valueOf();
var xmlhttp=new XMLHttpRequest();
var ApiKey='AIzaSyDZP2Eu 5lle6Vowibrimbinims32 Sax5rsgebu';
var myArr;
var url='1〕https://maps.googleapis.com/maps/api/geocode/json?address='+UserInput.value+'&key='+ApiKey;
var xhr=new XMLHttpRequest();
xhr.open('GET',url,true);
xhr.send();
xhr.onreadystatechange=processRequest;
函数processRequest(){
如果(xhr.readyState==4&&xhr.status==200)
{
var response=JSON.parse(xhr.responseText);
警报(响应[“结果”][0][0]);
}
}
}
我尝试了JSON.stringify()
,但它吐出了响应中的所有数据。如何从JSON中选择一个特定元素?请提供帮助
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Geocode</title>
</head>
<body>
Enter Address<input type="text" id="UserInput">
Go<input type="button" onclick="geoCode()">
<script>
function geoCode(){
var UserInput = document.getElementById('UserInput').valueOf();
var xmlhttp = new XMLHttpRequest();
var ApiKey = 'AIzaSyDZP2E_5LLE6VOwIbrNImS32sAx5rsgEbU';
var myArr;
var url = 'https://maps.googleapis.com/maps/api/geocode/json?address='+UserInput.value+'&key='+ApiKey;
var xhr = new XMLHttpRequest();
xhr.open('GET',url,true);
xhr.send();
xhr.onreadystatechange = processRequest;
function processRequest() {
if(xhr.readyState==4 && xhr.status==200)
{
var response = JSON.parse(xhr.responseText);
alert(response.results[0].geometry.location.lat + " " + response.results[0].geometry.location.lng);
}
}
}
地理编码
输入地址
去
函数geoCode(){
var UserInput=document.getElementById('UserInput').valueOf();
var xmlhttp=new XMLHttpRequest();
var ApiKey='AIzaSyDZP2Eu 5lle6Vowibrimbinims32 Sax5rsgebu';
var myArr;
var url='1〕https://maps.googleapis.com/maps/api/geocode/json?address='+UserInput.value+'&key='+ApiKey;
var xhr=new XMLHttpRequest();
xhr.open('GET',url,true);
xhr.send();
xhr.onreadystatechange=processRequest;
函数processRequest(){
如果(xhr.readyState==4&&xhr.status==200)
{
var response=JSON.parse(xhr.responseText);
警报(response.results[0].geometry.location.lat+“”+response.results[0].geometry.location.lng);
}
}
}
响应[“结果”][0]
不是数组,因此响应[“结果”][0][0]
是未定义的
。您想要什么?您不应该解析(JSON.parse)接收到的响应,因为此函数用于将JSON的字符串表示形式转换为JSON对象,您的案例已经是这种形式。您需要的是通过其路径访问元素,类似于结果[0]。格式化的\u地址将返回“Jabalpur,Madhya Pradesh 482001,India”
。