Perl：使用LibXML将XML转换为MySQL

我对Perl很新颖，我正在编写一个perl脚本来练习，并且我想将XML文件中的信息解析为MySQL DB，但是我卡住了，找不到将数据导入到MySQL的方法。Perl：使用LibXML将XML转换为MySQL

这里是我的Perl代码：

#!/usr/local/bin/perl 
use strict; 
use warnings; 
use diagnostics; 
use XML::LibXML; 
use DBI; 
my $filename = 'test.xml'; 
my $dom = XML::LibXML->load_xml(location => $filename); 
my $sport_id; 
my $sport_name; 
my $competition_id; 
my $competition_name; 
my $game_id; 
my $game_start; 
my $game_name; 
my @values; 
my $dbh = DBI->connect("dbi:mysql:parser:127.0.0.1", "root", "123qwe", { RaiseError => 1}) or die $DBI::errstr; 
my $query = 'INSERT INTO sports (sport_id,sport_name,competition_id,competition_name,game_id,game_start,game_name) VALUES (?,?,?,?,?,?,?)'; 
my $sth = $dbh->prepare($query) or die "Prepare failed: " . $dbh->errstr(); 

foreach my $test ($dom->findnodes('//Sport')) { 
    print "\n"; 
    $sport_id = $test->findvalue('./ID'); 
    $sport_name = $test->findvalue('./Name'); 
    $competition_id = $test->findvalue('./Competitions/Competition/ID'); 
    $competition_name = $test->findvalue('./Competitions/Competition/Name'); 
    $game_id = $test->findvalue('./Competitions/Competition/Games/ID'); 
    $game_start = $test->findvalue('./Competitions/Competition/Games/Start'); 
    $game_name = $test->findvalue('./Competitions/Competition/Games/Name'); 
    #print "Sport ID: $sport_id\n"; 
    #print "Sport Name: $sport_name\n"; 
    #print "Competition ID: $competition_id\n"; 
    #print "Competition Name: $competition_name\n"; 
    #print "Game ID: $game_id\n"; 
    #print "Game Start: $game_start\n"; 
    #print "Game Name: $game_name\n"; 
    #print "\n"; 
    push @values, $sport_id,$sport_name,$competition_id,$competition_name,$game_id,$game_start,$game_name; 
    $sth->execute(@values) or die $dbh->errstr; 
}

我的XML：

<Sports> 
<Sport> 
<ID>1369527874</ID> 
<Name>Virtual Football</Name> 
<Competitions> 
<Competition> 
<ID>1374380502</ID> 
<Name>Virtual Football. World - G.Devs Stadium</Name> 
<Games> 
<ID>1974885309</ID> 
<Start>2016-05-11 12:21:00</Start> 
<Name>New England Militia - St. Louis Racers</Name> 
<ID>1974892839</ID> 
<Start>2016-05-11 12:27:00</Start> 
<Name>Las Vegas Rollers - Salt Lake Wrath</Name> 
</Games> 
</Competition> 
</Competitions> 
</Sport> 
<Sport> 
<ID>882</ID> 
<Name>Darts</Name> 
<Competitions> 
<Competition> 
<ID>1834852369</ID> 
<Name>Darts. World - PDC European Tour Outright</Name> 
<Games> 
<ID>1895020486</ID> 
<Start>2016-05-15 23:00:00</Start> 
<Name>PDC European Tour. Outright</Name> 
</Games> 
</Competition> 
</Competitions> 
</Sport> 
</Sports>

MySQL的结构：

+------------------+--------------+------+-----+---------+----------------+ 
| Field   | Type   | Null | Key | Default | Extra   | 
+------------------+--------------+------+-----+---------+----------------+ 
| id    | int(6)  | NO | PRI | NULL | auto_increment | 
| sport_id   | varchar(255) | YES |  | NULL |    | 
| sport_name  | varchar(255) | YES |  | NULL |    | 
| competition_id | varchar(255) | YES |  | NULL |    | 
| competition_name | varchar(255) | YES |  | NULL |    | 
| game_id   | varchar(255) | YES |  | NULL |    | 
| game_start  | varchar(255) | YES |  | NULL |    | 
| game_name  | varchar(255) | YES |  | NULL |    | 
+------------------+--------------+------+-----+---------+----------------+

如果我从打印行删除注释输出将是如下：

Sport ID: 1369527874 
Sport Name: Virtual Football 
Competition ID: 1374380502 
Competition Name: Virtual Football. World - G.Devs Stadium 
Game ID: 19748853091974892839 
Game Start: 2016-05-11 12:21:002016-05-11 12:27:00 
Game Name: New England Militia - St. Louis RacersLas Vegas Rollers - Salt Lake Wrath 


Sport ID: 882 
Sport Name: Darts 
Competition ID: 1834852369 
Competition Name: Darts. World - PDC European Tour Outright 
Game ID: 1895020486 
Game Start: 2016-05-15 23:00:00 
Game Name: PDC European Tour. Outright

正如你所看到的，主要问题是我有多个游戏，我似乎找不到一种方法来分割它们，所以我可以将它们导入到MySQL。

来源

2016-05-13 user2642601

为什么不只是反覆'//游戏“而不是？ – Sobrique

那么结果将是相同的，例如第一个体育ID将与价值：19748853091974892839其中包括2体育1974885309和1974892839的身份证，我想分开这些结果。 – user2642601

要点是 - 你的牌桌_看起来像你每场比赛都在寻找一排，而不是每场比赛。 – Sobrique

我会重新说明你在做什么。它看起来像你的表是每游戏每行不是一行。

所以你需要一个'内部循环'来挑选游戏ID。不幸的是 - 这个没有分组，所以你需要做一个'下一个'的操作。

使用XML::Twig因为我更熟悉它 - 是这样的：

#!/usr/bin/env perl 
use strict; 
use warnings; 
use XML::Twig; 

my $twig = XML::Twig->parse(\*DATA); 

foreach my $sport ($twig->findnodes('//Sport')) { 
    my %fields; 
    $fields{sport_id}   = $sport->findvalue('./ID'); 
    $fields{sport_name}  = $sport->findvalue('./Name'); 
    $fields{competition_id} = $sport->findvalue('.//Competition/ID'); 
    $fields{competition_name} = $sport->findvalue('.//Competition/Name'); 
    foreach my $game ($sport->findnodes('.//Games/ID')) { 
     $fields{game_id} = $game->text; 
     $fields{game_start} = $game->next_sibling->text; 
     $fields{game_end} = $game->next_sibling->next_sibling->text; 
     print "Fields: ", join(
      ",", 
      @fields{ 
       qw(sport_id sport_name 
        competition_id competition_name 
        game_id game_start game_end) 
      } 
      ), 
      "\n"; 
    }  
}

（敢肯定你可以做同样的XML::LibXML）

来源

2016-05-13 10:18:22 Sobrique

Perl：使用LibXML将XML转换为MySQL

回答

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