Question

我目前正在使用一些jQuery执行以下操作，

    $(".template-choice").live("click", function(event){$.post($(this).attr('href'), function(data) {
                console.log(data);
            $('.textarea textarea').val(data.letter_template_content);
     });
     event.preventDefault();
});

正如您所看到的，我尝试将JSON var插入到textarea中，但是我的data.letter_template_content正在返回，因为下面的undefined是我的JSON对象，

{"template":[{"letter_template_id":"1","letter_template_name":"Change of address","letter_template_content":"[Your Name] <\/p>[Address] <\/p>[Town, City] <\/p>[Post Code] <\/span> <\/p> <\/p> <\/p>[Recipient Name] <\/p>[Job Title] <\/p>[Company Name] <\/p>[Address] <\/p>[Town, City] <\/p>[ Post Code] <\/p> <\/p> <\/p>Dear [Recipient Name]<\/span>: <\/p> <\/p> <\/p>This letter is to inform you that I have a new mailing address. Please update your records to replace my previous address: <\/p> <\/p>[Previous Address] <\/p>[Town, City] <\/p>[Post Code]<\/span> <\/p> <\/p>with the following new address: <\/p> <\/p>[New Address] <\/p>[Town, City] <\/p>[Post Code] <\/span> <\/p> <\/p> <\/p>Thank you for your attention to this matter. <\/p> <\/p>[Your Name] <\/p>","letter_template_created":"2011-09-09 15:59:51"}]}

如何访问letter_template_name键？

Answer 1

那是因为data.letter_template_content不存在。

尝试：

data.template[0].letter_template_id
data.template[0].letter_template_name
data.template[0].letter_template_content

你的（非常格式化的JSON，我可以添加），在一个格式很好的世界中看起来像这样：

{
    template: [
        {
            letter_template_id: 1,
            letter_template_name: "Change of address",
            letter_template_content: "lots of html",
        },...
    ]
}

Answer 2

这个是正确的

data.template[0].letter_template_content

json得不到访问返回为undefined

2 个答案: