Wenn das Front-End Formulare verarbeitet, die eine große Menge an übermittelten Daten enthalten, besteht neben der Verwendung von Formularen zum direkten Senden und Aktualisieren der Seite eine häufige Anforderung darin, Formularinformationen in Datenobjekten zu sammeln und über Ajax einreichen.
Beim Umgang mit komplexen Formularen müssen Sie die Feldwerte einzeln manuell beurteilen und verarbeiten, was sehr mühsam ist. Das als nächstes vorgestellte Plugin wird dieses Problem lösen.
Mit jquery.serializeJSON können Sie die Methode .serializeJSON() aufrufen, um Formulardaten in JS-Objekte auf einer Seite basierend auf jQuery oder Zepto zu serialisieren.
zu verwenden, müssen Sie es nur in jQuery oder Zepto einführen
<script type="text/javascript" src="jquery.js?1.1.10"></script> <script type="text/javascript" src="jquery.serializejson.js?1.1.10"></script>
HTML form (unterstützt input, textarea, select und andere Tags)
<form id="my-profile"> <!-- simple attribute --> <input type="text" name="fullName" value="Mario Izquierdo" /> <!-- nested attributes --> <input type="text" name="address[city]" value="San Francisco" /> <input type="text" name="address[state][name]" value="California" /> <input type="text" name="address[state][abbr]" value="CA" /> <!-- array --> <input type="text" name="jobbies[]" value="code" /> <input type="text" name="jobbies[]" value="climbing" /> <!-- textareas, checkboxes ... --> <textarea name="projects[0][name]">serializeJSON</textarea> <textarea name="projects[0][language]">javascript</textarea> <input type="hidden" name="projects[0][popular]" value="0" /> <input type="checkbox" name="projects[0][popular]" value="1" checked /> <textarea name="projects[1][name]">tinytest.js</textarea> <textarea name="projects[1][language]">javascript</textarea> <input type="hidden" name="projects[1][popular]" value="0" /> <input type="checkbox" name="projects[1][popular]" value="1"/> <!-- select --> <select name="selectOne"> <option value="paper">Paper</option> <option value="rock" selected>Rock</option> <option value="scissors">Scissors</option> </select> <!-- select multiple options, just name it as an array[] --> <select multiple name="selectMultiple[]"> <option value="red" selected>Red</option> <option value="blue" selected>Blue</option> <option value="yellow">Yellow</option> </select> </form>
javascript:
$('#my-profile').serializeJSON();
// returns =>{
fullName: "Mario Izquierdo",
address: {
city: "San Francisco",
state: {
name: "California",
abbr: "CA"}
},
jobbies: ["code", "climbing"],
projects: {'0': { name: "serializeJSON", language: "javascript", popular: "1" },'1': { name: "tinytest.js?1.1.10", language: "javascript", popular: "0" }
},
selectOne: "rock",
selectMultiple: ["red", "blue"]
} gibt ein JS-Objekt zurück, keine JSON-Zeichenfolge. Mit serializeJSON können Sie in einen String konvertieren (IE8-Kompatibilität beachten). JSON.stringify
var jsonString = JSON.stringify(obj);
-Attribut anstelle des
-Tags angegeben werden.<form>
<input type="text" name="notype" value="default type is :string"/>
<input type="text" name="string:string" value=":string type overrides parsing options"/>
<input type="text" name="excluded:skip" value="Use :skip to not include this field in the result"/>
<input type="text" name="number[1]:number" value="1"/>
<input type="text" name="number[1.1]:number" value="1.1"/>
<input type="text" name="number[other stuff]:number" value="other stuff"/>
<input type="text" name="boolean[true]:boolean" value="true"/>
<input type="text" name="boolean[false]:boolean" value="false"/>
<input type="text" name="boolean[0]:boolean" value="0"/>
<input type="text" name="null[null]:null" value="null"/>
<input type="text" name="null[other stuff]:null" value="other stuff"/>
<input type="text" name="auto[string]:auto" value="text with stuff"/>
<input type="text" name="auto[0]:auto" value="0"/>
<input type="text" name="auto[1]:auto" value="1"/>
<input type="text" name="auto[true]:auto" value="true"/>
<input type="text" name="auto[false]:auto" value="false"/>
<input type="text" name="auto[null]:auto" value="null"/>
<input type="text" name="auto[list]:auto" value="[1, 2, 3]"/>
<input type="text" name="array[empty]:array" value="[]"/>
<input type="text" name="array[list]:array" value="[1, 2, 3]"/>
<input type="text" name="object[empty]:object" value="{}"/>
<input type="text" name="object[dict]:object" value='{"my": "stuff"}'/>
</form>$('form').serializeJSON();
// returns =>{"notype": "default type is :string","string": ":string type overrides parsing options",// :skip type removes the field from the output"number": {"1": 1,"1.1": 1.1,"other stuff": NaN, // <-- Other stuff parses as NaN (Not a Number) },"boolean": {"true": true,"false": false,"0": false, // <-- "false", "null", "undefined", "", "0" parse as false },"null": {"null": null, // <-- "false", "null", "undefined", "", "0" parse as null"other stuff": "other stuff"},"auto": { // works as the parseAll option"string": "text with stuff","0": 0, // <-- parsed as number"1": 1, // <-- parsed as number"true": true, // <-- parsed as boolean"false": false, // <-- parsed as boolean"null": null, // <-- parsed as null"list": "[1, 2, 3]" // <-- array and object types are not auto-parsed },"array": { // <-- works using JSON.parse"empty": [],"not empty": [1,2,3]
},"object": { // <-- works using JSON.parse"empty": {},"not empty": {"my": "stuff"}
}
}Optionskonfiguration
data-value-type:typeWerte sind immer Zeichenfolgen (es sei denn,
<form> <input type="text" name="number[1]" data-value-type="number" value="1"/> <input type="text" name="number[1.1]" data-value-type="number" value="1.1"/> <input type="text" name="boolean[true]" data-value-type="boolean" value="true"/> <input type="text" name="null[null]" data-value-type="null" value="null"/> <input type="text" name="auto[string]" data-value-type="auto" value="0"/> </form>
sind immer Zeichenfolgen (standardmäßig wird die Konvertierung nicht automatisch erkannt zu einem Array ist erforderlich)
Das input names wird ignoriert:types
Keys
checkboxes
SerializeJSON-Unterstützung disabled-Konfiguration, oder Sie können elements-Attribute in
写法 释义
checkboxUncheckedValue: string 针对未勾选的checkboxes，设定值
parseBooleans: true 自动检测转换”true”、”false”为布尔值true、false
parseNumbers: true 自动检测转换”1″、”33.33″、”-44″为数字1、33.33、-44
parseNulls: true 自动检测字符串”null”为null
parseAll: true 自动检测转换以上类型的字符串
parseWithFunction: function 自定义转换函数 function(value, name){return parsedValue}customTypes: {} 自定义:types覆盖默认types，如{type: function(value){…}}
defaultTypes: {defaultTypes} 重新定义所有的:types，如{type: function(value){…}}
useIntKeysAsArrayIndex: true 当keys为整数时，将序列化为数组 checkboxUncheckedValuecheckboxesdata-unchecked-value
<form> <input type="checkbox" name="check1" value="true" checked/> <input type="checkbox" name="check2" value="true"/> <input type="checkbox" name="check3" value="true"/> </form>
$('form').serializeJSON();
// returns =>{'check1': 'true'} // Note that check2 and check3 are not included because they are not checkedAttribut hinzufügen
checkboxUncheckedValue
$('form').serializeJSON({checkboxUncheckedValue: "false"});
// returns =>{'check1': 'true', check2: 'false', check3: 'false'}Der Standardtyp ist String data-unchecked-value, der durch Konfiguration in andere Typen konvertiert werden kann
<form id="checkboxes"> <input type="checkbox" name="checked[bool]" value="true" data-unchecked-value="false" checked/> <input type="checkbox" name="checked[bin]" value="1" data-unchecked-value="0" checked/> <input type="checkbox" name="checked[cool]" value="YUP" checked/> <input type="checkbox" name="unchecked[bool]" value="true" data-unchecked-value="false" /> <input type="checkbox" name="unchecked[bin]" value="1" data-unchecked-value="0" /> <input type="checkbox" name="unchecked[cool]" value="YUP" /> <!-- No unchecked value specified --> </form>
$('form#checkboxes').serializeJSON(); // Note no option is used
// returns =>{ 'checked': {'bool': 'true','bin': '1','cool': 'YUP'
}, 'unchecked': {'bool': 'false','bin': '0'// Note that unchecked cool does not appear, because it doesn't use data-unchecked-value }
}在极少数情况下，可以使用自定义转换函数
var emptyStringsAndZerosToNulls = function(val, inputName) { if (val === "") return null; // parse empty strings as nulls
if (val === 0) return null; // parse 0 as null
return val;
}
$('form').serializeJSON({parseWithFunction: emptyStringsAndZerosToNulls, parseNumbers: true});
// returns =>{ "bool": {"true": "true","false": "false",
} "number": {"0": null, // <-- parsed with custom function"1": 1,"2.2": 2.2,"-2.25": -2.25,
} "null": "null", "string": "text is always string", "empty": null // <-- parsed with custom function}
可以使用 customTypes 配置自定义类型或者覆盖默认类型（$.serializeJSON.defaultOptions.defaultTypes）
<form> <input type="text" name="scary:alwaysBoo" value="not boo"/> <input type="text" name="str:string" value="str"/> <input type="text" name="number:number" value="5"/> </form>
$('form').serializeJSON({
customTypes: {
alwaysBoo: function(str) { // value is always a string return "boo";
},
string: function(str) { // all strings will now end with " override" return str + " override";
}
}
});
// returns =>{ "scary": "boo", // <-- parsed with type :alwaysBoo
"str": "str override", // <-- parsed with new type :string (instead of the default)
"number": 5, // <-- the default :number still works}
// Select only imputs that have a non-empty value$('form :input[value!=""]').serializeJSON();
// Or filter them from the formobj = $('form').find('input').not('[value=""]').serializeJSON();
// For more complicated filtering, you can use a functionobj = $form.find(':input').filter(function () { return $.trim(this.value).length > 0 }).serializeJSON();使用useIntKeyAsArrayIndex配置
<form> <input type="text" name="arr[0]" value="foo"/> <input type="text" name="arr[1]" value="var"/> <input type="text" name="arr[5]" value="inn"/> </form>
按照默认的方法，结果为：
$('form').serializeJSON();
// returns =>{'arr': {'0': 'foo', '1': 'var', '5': 'inn' }}
使用useIntKeyAsArrayIndex可以将记过转换为数组并制定顺序
$('form').serializeJSON({useIntKeysAsArrayIndex: true});
// returns =>{'arr': ['foo', 'var', undefined, undefined, undefined, 'inn']}
所有的默认配置均定义在 $.serializeJSON.defaultOptions，可以进行修改。
$.serializeJSON.defaultOptions.parseAll = true; // parse booleans, numbers and nulls by default $('form').serializeJSON(); // No options => then use $.serializeJSON.defaultOptions
// returns =>{ "bool": {"true": true,"false": false,
} "number": {"0": 0,"1": 1,"2.2": 2.2,"-2.25": -2.25,
} "null": null, "string": "text is always string", "empty": ""}
这个插件支持的配置非常丰富，自定义程度很高，带来很大的便捷性。
Das obige ist der detaillierte Inhalt vonFormularformatierungs-Plug-in jquery.serializeJSON. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!
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