我有问题。如何在javascript 中的 Json对象中获得 refcat 。请找到以下代码段。
{
"request": {
"operation": "Viviendas",
"languague": "es",
"idMunicipio": "5",
"idVia": "196",
"idProvincia": "28",
"pc1": "9115501",
"pc2": "VK6891N",
"numero": "1"
},
"created_http": "Thu Oct 01 09:33:58 GMT+01:00 2015",
"created_server": 20151001092458,
"data": [
{
"portal": "",
"escaleras": [
{
"escalera": "1",
"plantas": [
{
"planta": "00",
"puertas": [
{
"puerta": "01",
"refCat": "9115501VK6891N0001GB",
"superficieVivienda": 60.0,
"superficieTotal": 60.0
}
]
},
{
"planta": "01",
"puertas": [
{
"puerta": "01",
"refCat": "9115501VK6891N0002HZ",
"superficieVivienda": 154.0,
"superficieTotal": 170.0
}
]
},
{
"planta": "02",
"puertas": [
{
"puerta": "01",
"refCat": "9115501VK6891N0003JX",
"superficieVivienda": 161.0,
"superficieTotal": 177.0
}
]
}
]
}
]
}
],
"page": "1",
"pagesTotal": "1",
"status_code": "200",
"status_text": "OK"
}
我尝试使用以下方法解决此问题。
alert(json.data[0].escaleras[0].plantas[0].puertas[i].refCat);
但它不起作用。有人可以帮帮我吗？
答案 0 :(得分：0)
问题是
alert(json.data[0].escaleras[0].plantas[0].puertas[i].refCat);
i is causing the problem...... ^
它应该是0。
alert(json.data[0].escaleras[0].plantas[0].puertas[0].refCat);
var json = {
"request": {
"operation": "Viviendas",
"languague": "es",
"idMunicipio": "5",
"idVia": "196",
"idProvincia": "28",
"pc1": "9115501",
"pc2": "VK6891N",
"numero": "1"
},
"created_http": "Thu Oct 01 09:33:58 GMT+01:00 2015",
"created_server": 20151001092458,
"data": [
{
"portal": "",
"escaleras": [
{
"escalera": "1",
"plantas": [
{
"planta": "00",
"puertas": [
{
"puerta": "01",
"refCat": "9115501VK6891N0001GB",
"superficieVivienda": 60.0,
"superficieTotal": 60.0
}
]
},
{
"planta": "01",
"puertas": [
{
"puerta": "01",
"refCat": "9115501VK6891N0002HZ",
"superficieVivienda": 154.0,
"superficieTotal": 170.0
}
]
},
{
"planta": "02",
"puertas": [
{
"puerta": "01",
"refCat": "9115501VK6891N0003JX",
"superficieVivienda": 161.0,
"superficieTotal": 177.0
}
]
}
]
}
]
}
],
"page": "1",
"pagesTotal": "1",
"status_code": "200",
"status_text": "OK"
};
alert(json.data[0].escaleras[0].plantas[0].puertas[0].refCat);
答案 1 :(得分：0)
您好，您必须遍历json对象才能获取数据。
使用以下代码。
module.exports = function(grunt) {
//time
require('time-grunt')(grunt);
grunt.initConfig({
pkg: grunt.file.readJSON('package.json'),
sass: {
dist: {
options: {
sourceMap: true,
style: 'compressed',
},
files: {
'assets/css/style.css' : 'assets/scss/style.scss',
}
}
},
copy: {
scripts: {
cwd: 'bower_components/jquery/dist/',
expand: true,
src: [
'jquery.min.js',
],
dest: 'assets/js/',
filter: 'isFile',
}
},
concat: {
options: {
separator: ';',
},
js: {
src: [
'bower_components/bootstrap-sass/assets/javascripts/bootstrap.js',
'bower_components/bootstrap-sass/assets/javascripts/bootstrap/button.js',
'bower_components/bootstrap-sass/assets/javascripts/bootstrap/collapse.js',
'bower_components/bootstrap-sass/assets/javascripts/bootstrap/dropdown.js',
'bower_components/bootstrap-sass/assets/javascripts/bootstrap/modal.js',
'bower_components/bootstrap-sass/assets/javascripts/bootstrap/tab.js',
'bower_components/bootstrap-sass/assets/javascripts/bootstrap/transition.js',
],
dest: 'assets/js/bootstrap.js',
},
sass: {
src: [
'bower_components/bootstrap-sass/assets/stylesheets/_bootstrap.scss',
'bower_components/bootstrap-sass/assets/stylesheets/bootstrap/**/*.scss'
],
dest: 'assets/scss/style.scss'
}
},
uglify: {
options: {
mangle: false,
},
my_target: {
files: {
'assets/css/style.min.css' : ['assets/css/style.css'],
'assets/js/bootstrap.min.js' : ['assets/js/bootstrap.js']
}
}
},
watch: {
gruntfile: {
files: 'Gruntfile.js',
tasks: ['jshint:gruntfile'],
options: {
livereload: true
}
},
src: {
files: ['assets/js/*.js', 'assets/scss/*.scss'],
tasks: ['default'],
options: {
livereload: true
}
}
},
jshint: {
all: ['Gruntfile.js', 'assets/**/*.js']
},
});
grunt.loadNpmTasks('grunt-contrib-sass');
grunt.loadNpmTasks('grunt-contrib-copy');
grunt.loadNpmTasks('grunt-contrib-watch');
grunt.loadNpmTasks('grunt-contrib-concat');
grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.loadNpmTasks('grunt-contrib-jshint');
grunt.registerTask('build', ['sass', 'copy', 'concat', 'uglify']);
grunt.registerTask('default', ['watch', 'jshint']);
};
答案 2 :(得分：0)
假设你有一个id为'test'的div，这是有效的。我猜你的索引逻辑会产生'puertas'上的[i]不正确，或者你的'json'对象实际上不是JSON对象？
示例jsfiddle https://jsfiddle.net/p6udz7ao/
以下示例的副本：
$(document).ready(function () {
var jsonString = '{ "request": { "operation": "Viviendas", "languague": "es" ,"idMunicipio":"5","idVia":"196","idProvincia":"28","pc1":"9115501","pc2":"VK6891N","numero":"1" }, "created_http": "Thu Oct 01 09:33:58 GMT+01:00 2015", "created_server": 20151001092458, "data": [ { "portal": "", "escaleras": [ { "escalera": "1", "plantas": [ { "planta": "00", "puertas": [ { "puerta": "01", "refCat": "9115501VK6891N0001GB", "superficieVivienda": 60.0, "superficieTotal": 60.0 } ] } , { "planta": "01", "puertas": [ { "puerta": "01", "refCat": "9115501VK6891N0002HZ", "superficieVivienda": 154.0, "superficieTotal": 170.0 } ] } , { "planta": "02", "puertas": [ { "puerta": "01", "refCat": "9115501VK6891N0003JX", "superficieVivienda": 161.0, "superficieTotal": 177.0 } ] } ] } ] } ], "page" : "1", "pagesTotal" : "1", "status_code" : "200", "status_text" : "OK" }';
var jsonObject = JSON.parse(jsonString);
var refcattext = jsonObject.data[0].escaleras[0].plantas[0].puertas[0].refCat;
$('#test').text(refcattext);
});