从select元素创建JSON

Question

我有一个网页，列出了我数据库中学生的信息。其中一个领域是他们的出生国。目前，数据库已存储了他们所在国家的全名。我需要将这些完整的国家/地区名称转换为双字符串。例如，“美国”将成为“美国”，“墨西哥”将成为“MX”。

我的服务器上有另一个网页，其中包含一个包含所有这些国家/地区列表的选择元素，但它将值存储为我需要的另一个字段的双字符代码。

我想将这个select元素用作查找，以确定在第一页上应该为国家名称指定正确的双字符代码。

以下是我的一个数据行的代码：

<tr id="38768">
    <td style="width:25px" class="">&nbsp</td>
    <td align="right">17</td>
    <td style="background-image: none !important;">LastName, FirstName</td>
    <td><input type="text" id="17-ereg_hls_date" value="08/03/2015" readonly></td>  
    <td><input type="text" id="17-ereg_hlid" value="1" readonly></td>
    <td><input type="text" id="17-ereg_bc" value="Mexico" readonly></td>
    <td><input type="text" id="17-sri_hls_date" value="" /></td>
    <td><input type="text" id="17-sri_hlid" value="99" /></td>
    <td><input type="text" id="17-sri_bc" value="" /></td>
</tr> 

我发现我可以使用以下内容从其他页面中提取select元素：

$j("#test").load("/admin/students/state/usa_ia/stateIA_BirthCountry.html [name*='Birth_Country']");

元素编码为：

<select name="[Students.S_IA_STU_X]Birth_Country">
    <option value="AF">Afghanistan
    <option value="AX">Åland Islands
    <option value="AL">Albania
    ...
    <option value="ZW">Zimbabwe
</select>

我认为我想要做的是将select元素中的信息加载到JSON对象或js数组中，然后从那里进行查找。

如何获取此select元素并创建某种键/值对象？

Answer 1

为什么不创建一个新的DDL，如：

<select name="country">
<option value="">Country...</option>
<option value="AF">Afghanistan</option>
<option value="AL">Albania</option>
<option value="DZ">Algeria</option>
<option value="AS">American Samoa</option>
<option value="AD">Andorra</option>
<option value="AG">Angola</option>
<option value="AI">Anguilla</option>
<option value="AG">Antigua &amp; Barbuda</option>
<option value="AR">Argentina</option>
<option value="AA">Armenia</option>
<option value="AW">Aruba</option>
<option value="AU">Australia</option>
<option value="AT">Austria</option>
<option value="AZ">Azerbaijan</option>
<option value="BS">Bahamas</option>
<option value="BH">Bahrain</option>
<option value="BD">Bangladesh</option>
<option value="BB">Barbados</option>
<option value="BY">Belarus</option>
<option value="BE">Belgium</option>
<option value="BZ">Belize</option>
<option value="BJ">Benin</option>
<option value="BM">Bermuda</option>
<option value="BT">Bhutan</option>
<option value="BO">Bolivia</option>
<option value="BL">Bonaire</option>
<option value="BA">Bosnia &amp; Herzegovina</option>
<option value="BW">Botswana</option>
<option value="BR">Brazil</option>
<option value="BC">British Indian Ocean Ter</option>
<option value="BN">Brunei</option>
<option value="BG">Bulgaria</option>
<option value="BF">Burkina Faso</option>
<option value="BI">Burundi</option>
<option value="KH">Cambodia</option>
<option value="CM">Cameroon</option>
<option value="CA">Canada</option>
<option value="IC">Canary Islands</option>
<option value="CV">Cape Verde</option>
<option value="KY">Cayman Islands</option>
<option value="CF">Central African Republic</option>
<option value="TD">Chad</option>
<option value="CD">Channel Islands</option>
<option value="CL">Chile</option>
<option value="CN">China</option>
<option value="CI">Christmas Island</option>
<option value="CS">Cocos Island</option>
<option value="CO">Colombia</option>
<option value="CC">Comoros</option>
<option value="CG">Congo</option>
<option value="CK">Cook Islands</option>
<option value="CR">Costa Rica</option>
<option value="CT">Cote D'Ivoire</option>
<option value="HR">Croatia</option>
<option value="CU">Cuba</option>
<option value="CB">Curacao</option>
<option value="CY">Cyprus</option>
<option value="CZ">Czech Republic</option>
<option value="DK">Denmark</option>
<option value="DJ">Djibouti</option>
<option value="DM">Dominica</option>
<option value="DO">Dominican Republic</option>
<option value="TM">East Timor</option>
<option value="EC">Ecuador</option>
<option value="EG">Egypt</option>
<option value="SV">El Salvador</option>
<option value="GQ">Equatorial Guinea</option>
<option value="ER">Eritrea</option>
<option value="EE">Estonia</option>
<option value="ET">Ethiopia</option>
<option value="FA">Falkland Islands</option>
<option value="FO">Faroe Islands</option>
<option value="FJ">Fiji</option>
<option value="FI">Finland</option>
<option value="FR">France</option>
<option value="GF">French Guiana</option>
<option value="PF">French Polynesia</option>
<option value="FS">French Southern Ter</option>
<option value="GA">Gabon</option>
<option value="GM">Gambia</option>
<option value="GE">Georgia</option>
<option value="DE">Germany</option>
<option value="GH">Ghana</option>
<option value="GI">Gibraltar</option>
<option value="GB">Great Britain</option>
<option value="GR">Greece</option>
<option value="GL">Greenland</option>
<option value="GD">Grenada</option>
<option value="GP">Guadeloupe</option>
<option value="GU">Guam</option>
<option value="GT">Guatemala</option>
<option value="GN">Guinea</option>
<option value="GY">Guyana</option>
<option value="HT">Haiti</option>
<option value="HW">Hawaii</option>
<option value="HN">Honduras</option>
<option value="HK">Hong Kong</option>
<option value="HU">Hungary</option>
<option value="IS">Iceland</option>
<option value="IN">India</option>
<option value="ID">Indonesia</option>
<option value="IA">Iran</option>
<option value="IQ">Iraq</option>
<option value="IR">Ireland</option>
<option value="IM">Isle of Man</option>
<option value="IL">Israel</option>
<option value="IT">Italy</option>
<option value="JM">Jamaica</option>
<option value="JP">Japan</option>
<option value="JO">Jordan</option>
<option value="KZ">Kazakhstan</option>
<option value="KE">Kenya</option>
<option value="KI">Kiribati</option>
<option value="NK">Korea North</option>
<option value="KS">Korea South</option>
<option value="KW">Kuwait</option>
<option value="KG">Kyrgyzstan</option>
<option value="LA">Laos</option>
<option value="LV">Latvia</option>
<option value="LB">Lebanon</option>
<option value="LS">Lesotho</option>
<option value="LR">Liberia</option>
<option value="LY">Libya</option>
<option value="LI">Liechtenstein</option>
<option value="LT">Lithuania</option>
<option value="LU">Luxembourg</option>
<option value="MO">Macau</option>
<option value="MK">Macedonia</option>
<option value="MG">Madagascar</option>
<option value="MY">Malaysia</option>
<option value="MW">Malawi</option>
<option value="MV">Maldives</option>
<option value="ML">Mali</option>
<option value="MT">Malta</option>
<option value="MH">Marshall Islands</option>
<option value="MQ">Martinique</option>
<option value="MR">Mauritania</option>
<option value="MU">Mauritius</option>
<option value="ME">Mayotte</option>
<option value="MX">Mexico</option>
<option value="MI">Midway Islands</option>
<option value="MD">Moldova</option>
<option value="MC">Monaco</option>
<option value="MN">Mongolia</option>
<option value="MS">Montserrat</option>
<option value="MA">Morocco</option>
<option value="MZ">Mozambique</option>
<option value="MM">Myanmar</option>
<option value="NA">Nambia</option>
<option value="NU">Nauru</option>
<option value="NP">Nepal</option>
<option value="AN">Netherland Antilles</option>
<option value="NL">Netherlands (Holland, Europe)</option>
<option value="NV">Nevis</option>
<option value="NC">New Caledonia</option>
<option value="NZ">New Zealand</option>
<option value="NI">Nicaragua</option>
<option value="NE">Niger</option>
<option value="NG">Nigeria</option>
<option value="NW">Niue</option>
<option value="NF">Norfolk Island</option>
<option value="NO">Norway</option>
<option value="OM">Oman</option>
<option value="PK">Pakistan</option>
<option value="PW">Palau Island</option>
<option value="PS">Palestine</option>
<option value="PA">Panama</option>
<option value="PG">Papua New Guinea</option>
<option value="PY">Paraguay</option>
<option value="PE">Peru</option>
<option value="PH">Philippines</option>
<option value="PO">Pitcairn Island</option>
<option value="PL">Poland</option>
<option value="PT">Portugal</option>
<option value="PR">Puerto Rico</option>
<option value="QA">Qatar</option>
<option value="ME">Republic of Montenegro</option>
<option value="RS">Republic of Serbia</option>
<option value="RE">Reunion</option>
<option value="RO">Romania</option>
<option value="RU">Russia</option>
<option value="RW">Rwanda</option>
<option value="NT">St Barthelemy</option>
<option value="EU">St Eustatius</option>
<option value="HE">St Helena</option>
<option value="KN">St Kitts-Nevis</option>
<option value="LC">St Lucia</option>
<option value="MB">St Maarten</option>
<option value="PM">St Pierre &amp; Miquelon</option>
<option value="VC">St Vincent &amp; Grenadines</option>
<option value="SP">Saipan</option>
<option value="SO">Samoa</option>
<option value="AS">Samoa American</option>
<option value="SM">San Marino</option>
<option value="ST">Sao Tome &amp; Principe</option>
<option value="SA">Saudi Arabia</option>
<option value="SN">Senegal</option>
<option value="RS">Serbia</option>
<option value="SC">Seychelles</option>
<option value="SL">Sierra Leone</option>
<option value="SG">Singapore</option>
<option value="SK">Slovakia</option>
<option value="SI">Slovenia</option>
<option value="SB">Solomon Islands</option>
<option value="OI">Somalia</option>
<option value="ZA">South Africa</option>
<option value="ES">Spain</option>
<option value="LK">Sri Lanka</option>
<option value="SD">Sudan</option>
<option value="SR">Suriname</option>
<option value="SZ">Swaziland</option>
<option value="SE">Sweden</option>
<option value="CH">Switzerland</option>
<option value="SY">Syria</option>
<option value="TA">Tahiti</option>
<option value="TW">Taiwan</option>
<option value="TJ">Tajikistan</option>
<option value="TZ">Tanzania</option>
<option value="TH">Thailand</option>
<option value="TG">Togo</option>
<option value="TK">Tokelau</option>
<option value="TO">Tonga</option>
<option value="TT">Trinidad &amp; Tobago</option>
<option value="TN">Tunisia</option>
<option value="TR">Turkey</option>
<option value="TU">Turkmenistan</option>
<option value="TC">Turks &amp; Caicos Is</option>
<option value="TV">Tuvalu</option>
<option value="UG">Uganda</option>
<option value="UA">Ukraine</option>
<option value="AE">United Arab Emirates</option>
<option value="GB">United Kingdom</option>
<option value="US">United States of America</option>
<option value="UY">Uruguay</option>
<option value="UZ">Uzbekistan</option>
<option value="VU">Vanuatu</option>
<option value="VS">Vatican City State</option>
<option value="VE">Venezuela</option>
<option value="VN">Vietnam</option>
<option value="VB">Virgin Islands (Brit)</option>
<option value="VA">Virgin Islands (USA)</option>
<option value="WK">Wake Island</option>
<option value="WF">Wallis &amp; Futana Is</option>
<option value="YE">Yemen</option>
<option value="ZR">Zaire</option>
<option value="ZM">Zambia</option>
<option value="ZW">Zimbabwe</option>
</select>

Answer 2

只需使用这样的对象：

var iso3166 = {
    'Afghanistan': 'AF',
    'Albania': 'AL',
    'Algeria': 'DZ',
    'American Samoa': 'AS',
    'Andorra': 'AD',
    'Angola': 'AG',
    'Anguilla': 'AI',
    'Antigua & Barbuda': 'AG',
    'Argentina': 'AR',
    'Armenia': 'AA',
    'Aruba': 'AW',
    'Australia': 'AU',
    'Austria': 'AT',
    'Azerbaijan': 'AZ',
    'Bahamas': 'BS',
    'Bahrain': 'BH',
    'Bangladesh': 'BD',
    'Barbados': 'BB',
    'Belarus': 'BY',
    'Belgium': 'BE',
    'Belize': 'BZ',
    'Benin': 'BJ',
    'Bermuda': 'BM',
    'Bhutan': 'BT',
    'Bolivia': 'BO',
    'Bonaire': 'BL',
    'Bosnia & Herzegovina': 'BA',
    'Botswana': 'BW',
    'Brazil': 'BR',
    'British Indian Ocean Ter': 'BC',
    'Brunei': 'BN',
    'Bulgaria': 'BG',
    'Burkina Faso': 'BF',
    'Burundi': 'BI',
    'Cambodia': 'KH',
    'Cameroon': 'CM',
    'Canada': 'CA',
    'Canary Islands': 'IC',
    'Cape Verde': 'CV',
    'Cayman Islands': 'KY',
    'Central African Republic': 'CF',
    'Chad': 'TD',
    'Channel Islands': 'CD',
    'Chile': 'CL',
    'China': 'CN',
    'Christmas Island': 'CI',
    'Cocos Island': 'CS',
    'Colombia': 'CO',
    'Comoros': 'CC',
    'Congo': 'CG',
    'Cook Islands': 'CK',
    'Costa Rica': 'CR',
    'Cote D`\'Ivoire': 'CT',
    'Croatia': 'HR',
    'Cuba': 'CU',
    'Curacao': 'CB',
    'Cyprus': 'CY',
    'Czech Republic': 'CZ',
    'Denmark': 'DK',
    'Djibouti': 'DJ',
    'Dominica': 'DM',
    'Dominican Republic': 'DO',
    'East Timor': 'TM',
    'Ecuador': 'EC',
    'Egypt': 'EG',
    'El Salvador': 'SV',
    'Equatorial Guinea': 'GQ',
    'Eritrea': 'ER',
    'Estonia': 'EE',
    'Ethiopia': 'ET',
    'Falkland Islands': 'FA',
    'Faroe Islands': 'FO',
    'Fiji': 'FJ',
    'Finland': 'FI',
    'France': 'FR',
    'French Guiana': 'GF',
    'French Polynesia': 'PF',
    'French Southern Ter': 'FS',
    'Gabon': 'GA',
    'Gambia': 'GM',
    'Georgia': 'GE',
    'Germany': 'DE',
    'Ghana': 'GH',
    'Gibraltar': 'GI',
    'Great Britain': 'GB',
    'Greece': 'GR',
    'Greenland': 'GL',
    'Grenada': 'GD',
    'Guadeloupe': 'GP',
    'Guam': 'GU',
    'Guatemala': 'GT',
    'Guinea': 'GN',
    'Guyana': 'GY',
    'Haiti': 'HT',
    'Hawaii': 'HW',
    'Honduras': 'HN',
    'Hong Kong': 'HK',
    'Hungary': 'HU',
    'Iceland': 'IS',
    'India': 'IN',
    'Indonesia': 'ID',
    'Iran': 'IA',
    'Iraq': 'IQ',
    'Ireland': 'IR',
    'Isle of Man': 'IM',
    'Israel': 'IL',
    'Italy': 'IT',
    'Jamaica': 'JM',
    'Japan': 'JP',
    'Jordan': 'JO',
    'Kazakhstan': 'KZ',
    'Kenya': 'KE',
    'Kiribati': 'KI',
    'Korea North': 'NK',
    'Korea South': 'KS',
    'Kuwait': 'KW',
    'Kyrgyzstan': 'KG',
    'Laos': 'LA',
    'Latvia': 'LV',
    'Lebanon': 'LB',
    'Lesotho': 'LS',
    'Liberia': 'LR',
    'Libya': 'LY',
    'Liechtenstein': 'LI',
    'Lithuania': 'LT',
    'Luxembourg': 'LU',
    'Macau': 'MO',
    'Macedonia': 'MK',
    'Madagascar': 'MG',
    'Malaysia': 'MY',
    'Malawi': 'MW',
    'Maldives': 'MV',
    'Mali': 'ML',
    'Malta': 'MT',
    'Marshall Islands': 'MH',
    'Martinique': 'MQ',
    'Mauritania': 'MR',
    'Mauritius': 'MU',
    'Mayotte': 'ME',
    'Mexico': 'MX',
    'Midway Islands': 'MI',
    'Moldova': 'MD',
    'Monaco': 'MC',
    'Mongolia': 'MN',
    'Montserrat': 'MS',
    'Morocco': 'MA',
    'Mozambique': 'MZ',
    'Myanmar': 'MM',
    'Nambia': 'NA',
    'Nauru': 'NU',
    'Nepal': 'NP',
    'Netherland Antilles': 'AN',
    'Netherlands (Holland, Europe)': 'NL',
    'Nevis': 'NV',
    'New Caledonia': 'NC',
    'New Zealand': 'NZ',
    'Nicaragua': 'NI',
    'Niger': 'NE',
    'Nigeria': 'NG',
    'Niue': 'NW',
    'Norfolk Island': 'NF',
    'Norway': 'NO',
    'Oman': 'OM',
    'Pakistan': 'PK',
    'Palau Island': 'PW',
    'Palestine': 'PS',
    'Panama': 'PA',
    'Papua New Guinea': 'PG',
    'Paraguay': 'PY',
    'Peru': 'PE',
    'Philippines': 'PH',
    'Pitcairn Island': 'PO',
    'Poland': 'PL',
    'Portugal': 'PT',
    'Puerto Rico': 'PR',
    'Qatar': 'QA',
    'Republic of Montenegro': 'ME',
    'Republic of Serbia': 'RS',
    'Reunion': 'RE',
    'Romania': 'RO',
    'Russia': 'RU',
    'Rwanda': 'RW',
    'St Barthelemy': 'NT',
    'St Eustatius': 'EU',
    'St Helena': 'HE',
    'St Kitts-Nevis': 'KN',
    'St Lucia': 'LC',
    'St Maarten': 'MB',
    'St Pierre & Miquelon': 'PM',
    'St Vincent & Grenadines': 'VC',
    'Saipan': 'SP',
    'Samoa': 'SO',
    'Samoa American': 'AS',
    'San Marino': 'SM',
    'Sao Tome & Principe': 'ST',
    'Saudi Arabia': 'SA',
    'Senegal': 'SN',
    'Serbia': 'RS',
    'Seychelles': 'SC',
    'Sierra Leone': 'SL',
    'Singapore': 'SG',
    'Slovakia': 'SK',
    'Slovenia': 'SI',
    'Solomon Islands': 'SB',
    'Somalia': 'OI',
    'South Africa': 'ZA',
    'Spain': 'ES',
    'Sri Lanka': 'LK',
    'Sudan': 'SD',
    'Suriname': 'SR',
    'Swaziland': 'SZ',
    'Sweden': 'SE',
    'Switzerland': 'CH',
    'Syria': 'SY',
    'Tahiti': 'TA',
    'Taiwan': 'TW',
    'Tajikistan': 'TJ',
    'Tanzania': 'TZ',
    'Thailand': 'TH',
    'Togo': 'TG',
    'Tokelau': 'TK',
    'Tonga': 'TO',
    'Trinidad & Tobago': 'TT',
    'Tunisia': 'TN',
    'Turkey': 'TR',
    'Turkmenistan': 'TU',
    'Turks & Caicos Is': 'TC',
    'Tuvalu': 'TV',
    'Uganda': 'UG',
    'Ukraine': 'UA',
    'United Arab Emirates': 'AE',
    'United Kingdom': 'GB',
    'United States of America': 'US',
    'Uruguay': 'UY',
    'Uzbekistan': 'UZ',
    'Vanuatu': 'VU',
    'Vatican City State': 'VS',
    'Venezuela': 'VE',
    'Vietnam': 'VN',
    'Virgin Islands (Brit)': 'VB',
    'Virgin Islands (USA)': 'VA',
    'Wake Island': 'WK',
    'Wallis & Futana Is': 'WF',
    'Yemen': 'YE',
    'Zaire': 'ZR',
    'Zambia': 'ZM',
    'Zimbabwe': 'ZW'
};

Answer 3

这个答案需要jQuery。

加载元素后，只需找到子选项并将所需信息存储在对象中。

var nameToCode = {};

$(...).find('option').each(function () {
    nameToCode[$(this).text()] = $(this).val();
});

然后您可以使用查询更改数据以更新所有元素。

$('[id$=ereg_bc]').each(function () {
    $(this).val(nameToCode[$(this).val()]);
});