[英]How do I create JSON in ExtJS for an AJAX call?
I want to create this parameter file so that I can send it to my web service. 我想创建此参数文件,以便可以将其发送到Web服务。
var parms = {
"quiz_id":"120",
"owner_id":"1",
"solver_id":"1",
"answers":
[
{
"answer_text" : "YES",
"question_id" : "1"
},
{
"answer_text" : "NO",
"question_id" : "2"
},
{
"answer_text" : "YES",
"question_id" : "3"
},
{
"answer_text" : "YES",
"question_id" : "4"
},
{
"answer_text" : "YES",
"question_id" : "5"
}
]
};
I am stuck with the contents inside of the answers. 我坚持答案的内容。 I don't know how to create it dynamically.
我不知道如何动态创建它。
for serializing Javascript objects to JSON strings either you can use 用于将Javascript对象序列化为JSON字符串,您可以使用
JSON.stringify(Object);
which is available in most of the latest browers, else you can use ExtJS inbuilt method 大多数最新浏览器都可用,否则您可以使用ExtJS内置方法
Ext.encode(Object);
and for deserializing JSON string you can use JSON.parse(JSONString)
or Ext.decode(JSONString)
对于反序列化JSON字符串,您可以使用
JSON.parse(JSONString)
或Ext.decode(JSONString)
An easy way to do this is to create your data as a javascript object and then use a Json "stringifier" to turn it into a json string, which can then be passed to your server. 一种简单的方法是将数据创建为javascript对象,然后使用Json“ stringifier”将其转换为json字符串,然后可以将其传递到您的服务器。
This same problem was answered previously at Serializing an object to JSON 先前在将对象序列化为JSON时回答了相同的问题
If you use jquery (and I highly recommend it as a very useful tool for all serious javascript programmers), there is a nice plugin that I use for passing json back and forth in Ajax calls. 如果您使用jquery(我强烈建议将其作为对所有认真的javascript程序员非常有用的工具),那么有个不错的插件可用于在Ajax调用中来回传递json。 See http://code.google.com/p/jquery-json/
请参阅http://code.google.com/p/jquery-json/
创建一个内部包含数组和一些对象的对象,然后查看Ext.data.proxy.Server.encodeFilters()
方法。
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