基本上我正在为我的网站制作申请表。我需要使用用户输入的邮政编码搜索完整地址，并希望提供该邮政编码的结果供他们选择。我知道需要各种数据库，但我正在努力寻找它，希望能提供任何帮助。
【问题讨论】：
标签： php codeigniter lookup street-address postal-code
在英国，您可以使用 192.com 从任何邮政编码获取完整地址。
他们在 192.com 上有一个完全免费的数据库
我不为他们或他们的任何广告商工作，但我已将此网站用于许多数据输入应用程序。
根据您正在搜索的邮政编码格式化 URL。即
'a1 1aa' 将是 http://www.192.com/places/a/a1-1/a1-1aa
这将列出邮政编码中的所有地址。
这是我写的课程，希望对你有帮助：
Imports System.Net
Imports System.IO
Public Class PCLookup
Property Addresses As List(Of Address)
Public Sub New(Postcode As String)
GetAddresses(CreatDoc(Postcode))
End Sub
Private Function CreatDoc(PostCode As String) As mshtml.HTMLDocument
Dim URL As String = FormatPostcode(PostCode)
If URL = "" Then Return New mshtml.HTMLDocument
Dim request As HttpWebRequest = WebRequest.Create(URL)
Dim response As HttpWebResponse = request.GetResponse()
Dim reader As StreamReader = New StreamReader(response.GetResponseStream())
Dim doc As New mshtml.HTMLDocument
Dim objDoc As mshtml.IHTMLDocument2 = doc
Dim param As Object() = {reader.ReadToEnd()}
objDoc.write(param)
response.Close()
reader.Close()
Return objDoc
End Function
Private Function FormatPostcode(Postcode As String) As String
Dim FullURL As String = "http://www.192.com/places/"
Do Until Postcode.Contains(" ") = False
Postcode = Replace(Postcode, " ", "")
Loop
If Len(Postcode) > 7 Or Len(Postcode) < 5 Then
Return ""
End If
If Len(Postcode) = 5 Then
FullURL &= Mid(Postcode, 1, 1) & "/"
FullURL &= Mid(Postcode, 1, 2) & "-" & Mid(Postcode, 3, 1) & "/"
FullURL &= Mid(Postcode, 1, 2) & "-" & Mid(Postcode, 3) & "/"
End If
If Len(Postcode) = 6 Then
If IsNumeric(Mid(Postcode, 2, 1)) Then
FullURL &= Mid(Postcode, 1, 1) & "/"
FullURL &= Mid(Postcode, 1, 3) & "-" & Mid(Postcode, 4, 1) & "/"
FullURL &= Mid(Postcode, 1, 3) & "-" & Mid(Postcode, 4) & "/"
Else
FullURL &= Mid(Postcode, 1, 2) & "/"
FullURL &= Mid(Postcode, 1, 3) & "-" & Mid(Postcode, 4, 1) & "/"
FullURL &= Mid(Postcode, 1, 3) & "-" & Mid(Postcode, 4) & "/"
End If
End If
If Len(Postcode) = 7 Then
FullURL &= Mid(Postcode, 1, 2) & "/"
FullURL &= Mid(Postcode, 1, 4) & "-" & Mid(Postcode, 5, 1) & "/"
FullURL &= Mid(Postcode, 1, 4) & "-" & Mid(Postcode, 5) & "/"
End If
Return FullURL
End Function
Private Sub GetAddresses(ObjDoc As mshtml.HTMLDocument)
Dim Obj As mshtml.IHTMLElementCollection = ObjDoc.getElementsByTagName("td")
Addresses = New List(Of Address)
For Each TD As mshtml.HTMLTableCell In Obj
If TD.className = "address" Then
Dim FullAddress As String = TD.innerText
Addresses.Add(New Address(FullAddress))
End If
Next
End Sub
End Class
Public Class Address
Property Line1 As String
Property Line2 As String
Property Line3 As String
Property Line4 As String
Property Postcode As String
Public Sub New(FullAddress As String)
Dim Obj As Object = Split(FullAddress, ", ")
Select Case UBound(Obj)
Case 4
Line1 = Obj(0) & " " & Obj(1)
Line2 = ""
Line3 = Obj(2)
Line4 = Obj(3)
Postcode = Obj(4)
Case 5
Line1 = Obj(0) & " " & Obj(1)
Line2 = Obj(2)
Line3 = Obj(3)
Line4 = Obj(4)
Postcode = Obj(5)
Case 6
Line1 = Obj(0) & " " & Obj(1)
Line2 = Obj(2) & " " & Obj(3)
Line3 = Obj(4)
Line4 = Obj(5)
Postcode = Obj(6)
End Select
End Sub
End Class
对不起，如果代码有点乱，自学程序员！
【讨论】：
在 NL，您可以通过邮政编码和门牌号来唯一标识地址。
并非所有国家/地区都有此属性，因此您的里程可能会有所不同。
但是你会做这样的事情：
SELECT
CONCAT(street,' ','$housenumber') AS streetplusnumber
, city
FROM postcodetostreet p
WHERE p.postcode = '$postcode' and '$housenumber' between minnumber and maxnumber
到街道的表格邮政编码类似于：
postcodetostreet
------------------
postcode varchar(6) primary key
street varchar(512)
city
minnumber
maxnumber
数据库通常是从第三方购买的。
【讨论】：
我在自己寻找答案时发现了这个（通过http://ben-major.co.uk/2012/02/using-google-maps-to-lookup-uk-postcodes/）。希望对您有所帮助：
/*fill out the postcode and hit search*/
(function($) {
$.fn.searchPc = function(options) {
var settings = $.extend({
address1: 'address1',
address2: 'address2',
address3: 'address3',
address4: 'address4'
}, options);
return this.each(function() {
var $el = $(this);
var $form = $el.closest('form');
//insert the button on the form
$('<a class="postCodeLookup">Search</a>').insertAfter($el);
$('.postCodeLookup', $form).button({icons:{primary:'ui-icon-search'}});
$form.on('click', '.postCodeLookup', function() {
$.post('http://maps.googleapis.com/maps/api/geocode/json?address='+$el.val()+'&sensor=false', function(r) {
var lat = r['results'][0]['geometry']['location']['lat'];
var lng = r['results'][0]['geometry']['location']['lng'];
$.post('http://maps.googleapis.com/maps/api/geocode/json?latlng='+lat+','+lng+'&sensor=false', function(address) {
$('input[name='+settings.address1+']').val(address['results'][0]['address_components'][0]['long_name']);
$('input[name='+settings.address2+']').val(address['results'][0]['address_components'][1]['long_name']);
$('input[name='+settings.address3+']').val(address['results'][0]['address_components'][2]['long_name']);
$('input[name='+settings.address4+']').val(address['results'][0]['address_components'][3]['long_name']);
});
});
});
});
};
})(jQuery);
$('input[name=postcode]').searchPc({
address2: 'custom_field',
});
【讨论】：
我知道你在英国，不幸的是，这意味着要花一大笔钱来访问皇家邮政的Postcode Address File (PAF)。
【讨论】：
您可以使用诸如 Google 地理定位 API 之类的网络服务。
【讨论】：
你的意思是像下面这样的服务吗？
http://www.postcodeanywhere.co.uk/demos/address-finder.aspx
我只建议我们在工作中使用它，它没有给我们带来任何问题，但我想还有很多其他同样好的选择。
不过，这是一项付费服务（我相信）。
【讨论】：
如果您想在地址表单中添加邮政编码查找解决方案，您需要购买付费服务来访问 Royal Mail 的邮政编码地址文件。
Ideal Postcodes 为英国提供了这样的解决方案。您可以在这里查看演示：https://ideal-postcodes.co.uk/postcode-lookup-demo
【讨论】：