回答編集履歴
2
XMLAgilityPackの例を追加しました．
test
CHANGED
|
@@ -175,3 +175,79 @@
|
|
|
175
175
|
|
|
176
176
|
|
|
177
177
|
入力はたまたまXHTMLでした．他のダーティーなのでも試した方が良いのでしょうけれども、私の家は冷房なしでこれ以上気力が持ちません... あと普段まずVisual Studioを立ち上げる機会はゼロです．おかしな点があるかもしれません、ご容赦ください．
|
|
178
|
+
|
|
179
|
+
|
|
180
|
+
|
|
181
|
+
［追記］
|
|
182
|
+
|
|
183
|
+
> HtmlAgilityPackを使ってみましたが結果は散々でした．
|
|
184
|
+
|
|
185
|
+
|
|
186
|
+
|
|
187
|
+
HtmlAgilityPackでもいろいろやった末、以下のコードで動きました．エンコーディングの指定が要るようです．
|
|
188
|
+
|
|
189
|
+
|
|
190
|
+
|
|
191
|
+
```vb
|
|
192
|
+
|
|
193
|
+
Imports System.Text.Encoding
|
|
194
|
+
|
|
195
|
+
Imports System.Net
|
|
196
|
+
|
|
197
|
+
Imports HtmlAgilityPack
|
|
198
|
+
|
|
199
|
+
|
|
200
|
+
|
|
201
|
+
...
|
|
202
|
+
|
|
203
|
+
|
|
204
|
+
|
|
205
|
+
Sub Main()
|
|
206
|
+
|
|
207
|
+
Dim xw As XmlWriter = CreateXmlWriter("maxTemp.xml")
|
|
208
|
+
|
|
209
|
+
xw.WriteStartElement("tempDataRoot", "")
|
|
210
|
+
|
|
211
|
+
Dim wc As WebClient = New WebClient()
|
|
212
|
+
|
|
213
|
+
wc.Encoding = UTF8
|
|
214
|
+
|
|
215
|
+
Dim htmlSource As String = wc.DownloadString("http://www.data.jma.go.jp/obd/stats/data/mdrr/synopday/data1s.html")
|
|
216
|
+
|
|
217
|
+
Dim doc As HtmlDocument = New HtmlDocument()
|
|
218
|
+
|
|
219
|
+
doc.LoadHtml(htmlSource)
|
|
220
|
+
|
|
221
|
+
Dim trs = doc.DocumentNode.SelectNodes("//table[@class = 'o1']//tr[@class != 'o1h']")
|
|
222
|
+
|
|
223
|
+
For Each tr In trs
|
|
224
|
+
|
|
225
|
+
Dim tds As IEnumerable(Of HtmlNode) = tr.Elements("td")
|
|
226
|
+
|
|
227
|
+
Dim tdArray As HtmlNode() = tds.ToArray
|
|
228
|
+
|
|
229
|
+
Dim regionTd As HtmlNode = tdArray(0)
|
|
230
|
+
|
|
231
|
+
Dim maxTempTd As HtmlNode = tdArray(6)
|
|
232
|
+
|
|
233
|
+
xw.WriteStartElement("tempData")
|
|
234
|
+
|
|
235
|
+
xw.WriteAttributeString("region", regionTd.InnerText)
|
|
236
|
+
|
|
237
|
+
xw.WriteAttributeString("maxTemp", maxTempTd.InnerText)
|
|
238
|
+
|
|
239
|
+
Debug.WriteLine("region={0} max-temp={1}", regionTd.InnerText, maxTempTd.InnerText)
|
|
240
|
+
|
|
241
|
+
xw.WriteEndElement()
|
|
242
|
+
|
|
243
|
+
Next
|
|
244
|
+
|
|
245
|
+
xw.WriteEndElement()
|
|
246
|
+
|
|
247
|
+
xw.Close()
|
|
248
|
+
|
|
249
|
+
End Sub
|
|
250
|
+
|
|
251
|
+
|
|
252
|
+
|
|
253
|
+
```
|
1
サンプルプログラムを追加しました．
test
CHANGED
|
@@ -33,3 +33,145 @@
|
|
|
33
33
|
|
|
34
34
|
|
|
35
35
|
以上 少しでもお役にたてば．
|
|
36
|
+
|
|
37
|
+
|
|
38
|
+
|
|
39
|
+
［追記］
|
|
40
|
+
|
|
41
|
+
コメントに書きましたプログラムです．
|
|
42
|
+
|
|
43
|
+
|
|
44
|
+
|
|
45
|
+
```vb
|
|
46
|
+
|
|
47
|
+
Imports System.Xml
|
|
48
|
+
|
|
49
|
+
Imports System.Xml.XPath
|
|
50
|
+
|
|
51
|
+
Imports System.Text.Encoding
|
|
52
|
+
|
|
53
|
+
Imports Sgml
|
|
54
|
+
|
|
55
|
+
Module HtmlXPathModule
|
|
56
|
+
|
|
57
|
+
Sub Main()
|
|
58
|
+
|
|
59
|
+
Dim xw As XmlWriter = CreateXmlWriter("maxTemp.xml")
|
|
60
|
+
|
|
61
|
+
xw.WriteStartElement("tempDataRoot", "")
|
|
62
|
+
|
|
63
|
+
Dim sgml As SgmlReader = New SgmlReader()
|
|
64
|
+
|
|
65
|
+
sgml.DocType = "HTML"
|
|
66
|
+
|
|
67
|
+
sgml.Href = "http://www.data.jma.go.jp/obd/stats/data/mdrr/synopday/data1s.html"
|
|
68
|
+
|
|
69
|
+
sgml.IgnoreDtd = True
|
|
70
|
+
|
|
71
|
+
Dim htmlDoc As XDocument = XDocument.Load(sgml)
|
|
72
|
+
|
|
73
|
+
Dim nsTable As NameTable = New NameTable
|
|
74
|
+
|
|
75
|
+
Dim nsMgr As XmlNamespaceManager = New XmlNamespaceManager(nsTable)
|
|
76
|
+
|
|
77
|
+
nsMgr.AddNamespace("xhtml", "http://www.w3.org/1999/xhtml")
|
|
78
|
+
|
|
79
|
+
Dim targetTrs As IEnumerable(Of XElement) = htmlDoc.XPathSelectElements("//xhtml:table[@class = 'o1']//xhtml:tr[@class != 'o1h']", nsMgr)
|
|
80
|
+
|
|
81
|
+
For Each tr As XElement In targetTrs
|
|
82
|
+
|
|
83
|
+
Dim targetTds As IEnumerable(Of XElement) = tr.Elements
|
|
84
|
+
|
|
85
|
+
Dim tdArray As XElement() = targetTds.ToArray
|
|
86
|
+
|
|
87
|
+
Dim region As XElement = tdArray(0)
|
|
88
|
+
|
|
89
|
+
Dim maxTemp As XElement = tdArray(6)
|
|
90
|
+
|
|
91
|
+
xw.WriteStartElement("tempData")
|
|
92
|
+
|
|
93
|
+
xw.WriteAttributeString("region", "", region.Value)
|
|
94
|
+
|
|
95
|
+
xw.WriteAttributeString("maxTemp", "", maxTemp.Value)
|
|
96
|
+
|
|
97
|
+
xw.WriteEndElement()
|
|
98
|
+
|
|
99
|
+
Next
|
|
100
|
+
|
|
101
|
+
xw.WriteEndElement()
|
|
102
|
+
|
|
103
|
+
xw.Close()
|
|
104
|
+
|
|
105
|
+
End Sub
|
|
106
|
+
|
|
107
|
+
|
|
108
|
+
|
|
109
|
+
Function CreateXmlWriter(outputPath As String) As XmlWriter
|
|
110
|
+
|
|
111
|
+
Dim settings As XmlWriterSettings = New XmlWriterSettings()
|
|
112
|
+
|
|
113
|
+
settings.CloseOutput = True
|
|
114
|
+
|
|
115
|
+
settings.ConformanceLevel = ConformanceLevel.Document
|
|
116
|
+
|
|
117
|
+
settings.Encoding = UTF8
|
|
118
|
+
|
|
119
|
+
settings.Indent = False
|
|
120
|
+
|
|
121
|
+
settings.NewLineChars = vbCrLf
|
|
122
|
+
|
|
123
|
+
settings.NewLineHandling = NewLineHandling.None
|
|
124
|
+
|
|
125
|
+
settings.OmitXmlDeclaration = False
|
|
126
|
+
|
|
127
|
+
settings.WriteEndDocumentOnClose = False
|
|
128
|
+
|
|
129
|
+
Dim xw As XmlWriter = XmlWriter.Create(outputPath, settings)
|
|
130
|
+
|
|
131
|
+
Return xw
|
|
132
|
+
|
|
133
|
+
End Function
|
|
134
|
+
|
|
135
|
+
|
|
136
|
+
|
|
137
|
+
End Module
|
|
138
|
+
|
|
139
|
+
```
|
|
140
|
+
|
|
141
|
+
|
|
142
|
+
|
|
143
|
+
こんなXMLが出ます．（maxTemp.xml）今日は日本列島暑いです．37℃越え（！）のところもあります．
|
|
144
|
+
|
|
145
|
+
|
|
146
|
+
|
|
147
|
+
```XML
|
|
148
|
+
|
|
149
|
+
<?xml version="1.0" encoding="UTF-8"?>
|
|
150
|
+
|
|
151
|
+
<tempDataRoot>
|
|
152
|
+
|
|
153
|
+
<tempData maxTemp="27.1]" region="札幌"/>
|
|
154
|
+
|
|
155
|
+
<tempData maxTemp="26.9]" region="稚内"/>
|
|
156
|
+
|
|
157
|
+
<tempData maxTemp="26.0]" region="北見枝幸"/>
|
|
158
|
+
|
|
159
|
+
...
|
|
160
|
+
|
|
161
|
+
<tempData maxTemp="37.1]" region="鹿児島"/>
|
|
162
|
+
|
|
163
|
+
...
|
|
164
|
+
|
|
165
|
+
<tempData maxTemp="31.3]" region="西表島"/>
|
|
166
|
+
|
|
167
|
+
<tempData maxTemp="33.1]" region="石垣島"/>
|
|
168
|
+
|
|
169
|
+
<tempData maxTemp="" region="昭和"/>
|
|
170
|
+
|
|
171
|
+
</tempDataRoot>
|
|
172
|
+
|
|
173
|
+
```
|
|
174
|
+
|
|
175
|
+
|
|
176
|
+
|
|
177
|
+
入力はたまたまXHTMLでした．他のダーティーなのでも試した方が良いのでしょうけれども、私の家は冷房なしでこれ以上気力が持ちません... あと普段まずVisual Studioを立ち上げる機会はゼロです．おかしな点があるかもしれません、ご容赦ください．
|