the data type obtained asynchronously by jQuery-json object and string, we will introduce the Processing Methods of the obtained results in two ways.1. For the JSON string returned by the server, if jQuery asynchronous requests do not provide a type description or are accepted as strings, an object processing is required. The method is not too troublesome, is to put this string in eval () for execution onc
: ' 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 by the server, if the jquery asynchronous request does not have a type description, or is
This article mainly introduces the best way to convert a JSON string to a JSON object in js. For more information, see parse a JSON string into a JSON data format in JS, there are two methods:
1. Use the eval () function.
2. Use the Function object for return parsing.
Metho
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
For example:JSON string:var str1 = ' {' name ': ' cxh ', ' sex ': ' Man '} ';JSON object:var str2 = {"Name": "Cxh", "Sex": "Man"};One, JSON string converted to JSON objectTo use the above str1, you must first convert to a JSON object using the following method:Convert from
For example:JSON string:var str1 = ' {' name ': ' cxh ', ' sex ': ' Man '} ';JSON object:var str2 = {"Name": "Cxh", "Sex": "Man"};One, JSON string converted to JSON objectTo use the above str1, you must first convert to a JSON object using the following method:Convert from
For example:JSON string:var str1 = ' {' name ': ' cxh ', ' sex ': ' Man '} ';JSON object:var str2 = {"Name": "Cxh", "Sex": "Man"};One, JSON string converted to JSON objectTo use the above str1, you must first convert to a JSON object using the following method:Convert from
JSON string:var str1 = ' {' name ': ' cxh ', ' sex ': ' Man '} ';JSON object:var str2 = {"Name": "Cxh", "Sex": "Man"};To use the above str1, you must first convert to a JSON object using the following method:Convert from JSON string to J
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
scripts), which can easily cause system security problems. So you can use some third-party client script libraries that circumvent eval (), such as JSON in JavaScript, which provides a script library of no more than 3k.The second parsing method: Using the Function object to complete, its typical application is in jquery in the Ajax method of success and so on the return data of the parsing
1
varjson=‘{"name":"CJ","age":18}‘;
: ' Yulin '}, {name: ' 6109 ', V Alue: ' Ankang '}, {name: ' 6110 ', Value: ' Shangluo '} ]}";This is based on the data type obtained by jquery asynchronously,--json object and string, and describes how the results are handled in two ways. 1, for the JSON string returned by the server, if the jquery asynchronous request did not do type description, or as a string to accept, then need to do
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. Convert PHP array
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: falseReturn "{\" OK \ ": false }";}StringBuilder
Suppose we have obtained a Java object on the server side, and now we are considering how to convert this Java object into a string that complies with the JSON syntax. Of course, we can write a set of algorithms to implement this conversion, but it is troublesome, especially when the object has many attributes or the attribute Nesting is deep, it is more troublesome.
In practice, we can use a ready-made too
Form has a serialize () method that can serialize the value of the form. However, this method provided by jquery serializes the data in a format similar to the following:
A = 1 B = 2 c = 3 d = 4
Jquery does not provide a method to serialize form data to json, so we need to encapsulate it ourselves. The following code and test example are provided. First, write a js file:
$. AjaxSetup ({contentType: "application/x-www-form-urlencoded; charset
The form form has a serialize () method. The ability to serialize the values of the form, but this method of jquery provides a way to serialize the data into a form similar to the following:A=1b=2c=3d=4jquery does not provide a way to serialize form data to JSON. So we need to encapsulate it ourselves. The following gives the code and test examples, first write a JS file:$.ajaxsetup ({ contentType: "application/x-www-form-urlencoded; Charset=utf-8
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