本文介绍了JSON对象返回值但显示未定义的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 29岁程序员,3月因学历无情被辞! 我正在从数据库中选择数据并将其返回到json对象中,但是当我尝试访问对象的属性时,它们显示为undefined,但是如果我查看返回的对象,则使用Mozilla的firebug或内置的Chromes web开发工具,对象的属性有值,I'm selecting data from a database and returning it in a json object, but when i try to access the object's properties they display undefined, but if i look at the object being returned, either using Mozilla's firebug or Chromes built in web dev tools, the object's properties have values,$.getJSON("info.php", {uid:one}, function(data){ var size = $(data).size(); console.log(data); //display systems $(child).append('<tr><th height="20" colspan="2">Contact Person</th><th height="20">Contact Number</th><th height="20" colspan="2">E-mail</th></tr><tr><td colspan="2">'+data.contact_person+'</td><td>0'+data.contact_number+'</td><td colspan="2">'+data.email_address+'</td></tr>'); child.show(); loader.hide(); });非常感谢任何帮助。以下是chrom如何显示它(我用-----替换敏感数据):Here's how chrom displays it (i've replaced sensitive data with "-----"): [ Object bee:undefined bwo:undefined cell_number:--- city:--- company_name:---- contact_number:---- contact_person: date:2010-10- 18 email_address:----- esco_number:------- fax_number:0 fgn:undefined lbs:undefined none:undefined 数字:761 其他:undefined pobox:------ postal_city:------ postal_code :----- postal_postal_code:----- postal_province:--------- postal_suburb:-------- 省:------- same_as_physical: smee :undefined 状态:有效 街道:-------- 郊区:----- -----结果时间:11:36:21 uid:---------- 网站: proto :对象 ][Objectbee: "undefined"bwo: "undefined"cell_number: "---"city: "---"company_name: "----"contact_number: "----"contact_person: ""date: "2010-10-18"email_address: "-----"esco_number: "-------"fax_number: "0"fgn: "undefined"lbs: "undefined"none: "undefined"number: "761"other: "undefined"pobox: "------"postal_city: "------"postal_code: "-----"postal_postal_code: "-----"postal_province: "---------"postal_suburb: "--------"province: "-------"same_as_physical: ""smee: "undefined"status: "Active"street: "--------"suburb: "----------"time: "11:36:21"uid: "----------"website: ""proto: Object] //尝试访问chrome控制台中的数据 Object.pobox undefined// trying to access the data in chrome's consoleObject.poboxundefined //这里是console.dir: 数组[1] 0:对象 bee: bwo: cell_number:123456789 city: Bathurst company_name:test contact_number:123456789 contact_person:test date:2011- 03-22 email_address:[email protected] esco_number:010101 fax_number:123456789 fgn: lbs: 无: 数字:01 其他: pobox:0 postal_city: postal_code:0 postal_postal_code:0 postal_province: postal_suburb: 省份:东开普省 same_as_physical:on smee: 状态:有效 街道:测试 郊区:测试 时间:10:09:04 uid:0 网站:test.co.za proto :对象 长度:1 proto :数组[0]// here's console.dir:Array[1]0: Objectbee: ""bwo: ""cell_number: "123456789"city: "Bathurst"company_name: "test"contact_number: "123456789"contact_person: "test"date: "2011-03-22"email_address: "[email protected]"esco_number: "010101"fax_number: "123456789"fgn: ""lbs: ""none: ""number: "01"other: ""pobox: "0"postal_city: ""postal_code: "0"postal_postal_code: "0"postal_province: ""postal_suburb: ""province: "Eastern Cape"same_as_physical: "on"smee: ""status: "Active"street: "test"suburb: "test"time: "10:09:04"uid: "0"website: "test.co.za"proto: Objectlength: 1proto: Array[0]推荐答案啊,看起来你正在获得一个数组其中的一个对象。你可以在你的PHP脚本中修复它,或者只是在javascript函数的开头添加一行修复,Ahh, looks like you're getting an array with an object in it. You can either fix it in your PHP script or just add a one-line fix at the beginning of the javascript function,data = data[0]; 这篇关于JSON对象返回值但显示未定义的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 上岸,阿里云! 08-28 15:01