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This article focuses on "how jquery converts objects into strings". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how jquery converts objects into strings".

one. Conversion between Json object and Json string

The conversion methods supported by the 1.jQuery plug-in:

$.parseJSON (jsonstr); / / jQuery.parseJSON (jsonstr), which can convert json strings into json objects

two。 Browsers such as Firefox,chrome,opera,safari,ie9,ie8 supported by browsers:

JSON.stringify (obj) converts JSON to a string. JSON.parse (string) converts a string to JSON format

Var a =

Var baked goods'

Var aToStr=JSON.stringify (a)

Var bToObj=JSON.parse (b)

Alert (typeof (aToStr));? / / string

Alert (typeof (bToObj)); / / object

Conversion methods supported by 3.Javascript:

Eval ('('+ jsonstr +')'); / / you can convert json strings into json objects. Note that you need to wrap a pair of parentheses around json characters

Note: ie8 (compatibility mode), ie7 and ie6 can also use eval () to convert strings to JSON objects, but these methods are not recommended, which is not safe for eval to execute expressions in json strings.

The official conversion method of 4.JSON:

A json.js is provided so that ie8 (compatibility mode), ie7 and ie6 can support JSON objects and their stringify () and parse () methods

You can get this js on the, usually using json2.js now.

2. JSON? String? With? Java? Object conversion

1. Convert the list of java objects to an array of json objects and convert them to strings

JSONArray array=JSONArray.fromObject (list)

String

Jsonstr=array.toString ()

two。 Convert a java object to a json object and convert it to a string

JSONObject object=

JSONObject.fromObject (user)

Log4jInit.ysulogger.debug (object.toString ())

3. Convert JSON strings to JAVA

Object array

JSONArray json=

JSONArray.fromObject (userStr); / / userStr is a json string

List

Users=

(List) JSONArray.toCollection (json, User.class)

4. Convert JSON strings to JAVA

Object

JSONObject

Jsonobject=JSONObject.fromObject (jsonStr)

User user=

(User) JSONObject.toBean (object,User.class)

At this point, I believe you have a deeper understanding of "how jquery converts objects into strings". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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