我输入的内容如下:
NAME
Get-AzureRmSqlServer
SYNOPSIS
Returns information about SQL Database servers.
SYNTAX
Get-AzureRmSqlServer [[-ResourceGroupName] <System.String>] [[-ServerName]
<System.String>] [-DefaultProfile <Microsoft.Azure.Commands.Common.Authenticatio
n.Abstractions.IAzureContextContainer>] [-Confirm
<System.Management.Automation.SwitchParameter>] [-WhatIf
<System.Management.Automation.SwitchParameter>] [<CommonParameters>]
DESCRIPTION
The Get-AzureRmSqlServer cmdlet returns information about one or more Azure SQL
Database servers. Specify the name of a server to see information for only that
server.
我想捕获地址标签之间的所有内容。
我尝试过:
<address>
<addressLine>280 Flinders Mall</addressLine>
<geoCodeGranularity>PROPERTY</geoCodeGranularity>
</address>
<address type="office">
<addressLine>IT Park</addressLine>
<geoCodeGranularity>office Space</geoCodeGranularity>
</address>
这不适用于所有情况,因为地址标记内部可能包含某些属性。请帮助如何获取此类字符串的文本。
答案 0 :(得分:1)
通常,您不应该使用正则表达式来解析HTML / XML内容。而是使用XPath之类的解析器。鉴于您似乎无法使用解析器,我们可以使用模式匹配器尝试以下选项:
int count = 0;
String input = "<address>\n<addressLine>280 Flinders Mall</addressLine>\n <geoCodeGranularity>PROPERTY</geoCodeGranularity>\n</address>\n<address type=\"office\">\n <addressLine>IT Park</addressLine>\n <geoCodeGranularity>office Space</geoCodeGranularity>\n</address>";
String pattern = "<address[^>]*>(.*?)</address>";
Pattern r = Pattern.compile(pattern, Pattern.DOTALL);
Matcher m = r.matcher(input);
while (m.find( )) {
count += m.group(1).length();
System.out.println("Found value: " + m.group(1) );
}
System.out.println("count = " + count);
这会为您的示例数据中的两个<address>
标签找到198个计数。
要使用BufferedReader
进行此操作,您可能必须确保一次读取一个完整的<address>
标签。
答案 1 :(得分:0)
您可以将文件转换为String,并可以如下确定所需子字符串的开始和结束索引:
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
public class Address {
public static void main(String[] args) throws IOException {
// Complete File Path
File dir =
new File("\\..\\..\\Test.html");
// Convert File Data As String
String data =
new String(
Files.readAllBytes(Paths
.get(dir
.getAbsolutePath())));
// For Loop to get all the <address> tags in the file.
for (int index = data.indexOf("<address"); index >= 0;) {
// Start Index
int startIndex = data.indexOf(">", index + 1);
++startIndex;
// End Index
int indexOfEnd = data.indexOf("</address>", startIndex + 1);
String attributesString = data.substring(startIndex, indexOfEnd);
// Replace below line with desired logic with calling trim() on the String attributesString
System.out.println(attributesString);
// Next Address will be after the end of first address
index = data.indexOf("<address", indexOfEnd + 1);
}
}
}
答案 2 :(得分:0)
while (scan.hasNextLine()) {
parser = scan.nextLine();
// System.out.println(parser);
if (parser.equals("<adress>")) {
parser = scan.nextLine();
// System.out.println(parser);
int startPosition = parser.indexOf("<adressLine>") + "<adressLine>".length();
int endPosition = parser.indexOf("</adressLine>", startPosition);
idNumber = parser.substring(startPosition, endPosition);
parser = scan.nextLine();
int startPosition1 = parser.indexOf("<geoCodeGranularity>") + "<geoCodeGranularity>".length();
int endPosition1 = parser.indexOf("</geoCodeGranularity>", startPosition1);
time = parser.substring(startPosition1, endPosition1);
parser = scan.nextLine();
...... 算法必须是这样的。如果您在文件上阅读。