A method that converts a JSON string into a JSON object. During data transfer, JSON is passed in the form of text, which is a string, and JS operates on JSON objects, so the conversion between
JQuery. parseJSON (json) converts a JSON string to a js object, and the jquery string to json
Overview
Accepts a JSON string and returns the parsed object.
Inputting a malformed
What is JSON?
JSON refers to JavaScript Object notation (JavaScript Notation)
JSON is a lightweight text data interchange Format
JSON Independent of Language *
JSON is self-descriptive and easier to understand
*
During data transfer, JSON is passed in the form of text, which is a string, and JS operates on JSON objects, so the conversion between JSON objects and JSON strings is keyFor example:JSON string: var str = ' {' name ': ' name1 ',
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var str = {"Code": "", "Svcname": "", "Version": "", "Component": "", "category": "", "requestmsg": [{"FieldName": " UserName ', ' type ': ' Simple ', ' required ': ' True '},{' fieldName ': ' Age ', ' type ': ' Simple ', ' required ': ' True '}]}
First, check if the string is in
In java, XStream is used to convert an object to an xml string or convert an xml string to an object =
We often have requirements, such as calling others' interfaces, and others will return data in json or xml format to you. Then we need to
* map, custom type is resolved with Jsonobject * Map can be understood as an object, the Key/value of the inside can be To understand the property/property value of an object * that is {key1:value1,key2,value2 ...} * * 1.JSONObject is a name:values collection, obtained through its get (key) method is key after the corresponding value part (string) * through its getjsonobject (key) can be taken to a jsonobject,- ---
Original link: http://www.cnblogs.com/mailingfeng/archive/2012/01/18/2325707.html1. Json-lib is a Java class library that provides the ability to convert Java objects, including beans, maps, collections, Java Arrays and XML, to JSON, or reverse-transform.2. Json-lib Home: http://js
: ' 6108 ', Value: ' Yulin '},
{name: ' 6109 ', Value: ' Ankang '},
{name: ' 6110 ', Value: ' Shangluo '}
]
}
";
This is based on the data type--json object and string that jquery asynchronously obtains, and describes the result processing methods obtained in two ways respectively.
1. For the JSON string returned
First, import the following jar packagesHere are the various types of programs that convert to JSON and extract data from JSONPackage Jsontest;import Java.util.arraylist;import java.util.hashmap;import java.util.list;import java.util.Map; Import Net.sf.json.jsonarray;import Net.sf.json.jsonobject;public class Jsonmain {public static void main (string[] args ) {Ge
1. Json-lib is a Java class library that provides the ability to convert Java objects, including beans, maps, collections, Java Arrays and XML, to JSON, or reverse-transform.2. Json-lib Home: http://json-lib.sourceforge.net/3. Execution EnvironmentThe following class library
1. Json-lib is a Java class library that provides the ability to convert Java objects, including beans, maps, collections, Java Arrays and XML, to JSON, or reverse-transform.2. Json-lib Home: http://json-lib.sourceforge.net/3. Execution EnvironmentThe following class library
Convert DataSet to json, and DataSet to json/// /// Convert dataset data to json format/// /// /// Public static string GetJsonByDataset (DataSet ds){If (ds = null | ds. Tables. Count {// If the queried data is null, mark OK: fals
When I called the PHP function that returned the array value in JS a few days ago, I did not know how to read the returned PHP array data in JS. So I thought of converting the PHP array into a JSON string first, then, get the returned value in JS and convert it to an object using the eval function of Js. to read data. How to implement it?
1.
-inf/page/jsonvideonews.jsp"). Forward (request, response); }}(3) When the client through the servlet request through the jump can return to the JSP page data (using the El expression, because the JSON data is a string type, so Contenttype= "text/plain; Charset=utf-8 ")%@ page language="java" contentType="text/plain; charset=UTF-8" pageEncoding="UTF-8"%>${json}(4
JavaScript toolkits or APIs.
modifying JSON data
Just as you can access data with dots and parentheses, you can easily modify the data in the same way:
After you convert a string to a JavaScript object, you can modify the data in the variable like this.
Convert back to
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