自2011年以來一直處理此問題。通常能夠解決此問題。現在出現了這樣一種情況:我真的需要能夠處理錯誤,而且我在想,人們多年以來就知道這個問題,看起來像是修復列表上的高級事物,但最新的DBI升級問題仍未解決。有沒有人找到解決辦法,或知道如何破解庫,並獲取DBI :: errstr攜帶值時出現錯誤?Win 64草莓Perl DBI沒有錯誤報告錯誤仍然沒有解決?
這裏是我的代碼(是我知道的問題瓦特/空的root密碼):現在
use strict;
use DBI;
use DBD::mysql;
use Data::Dumper;
my $platform = "mysql";
my $database = "test";
my $host = "localhost";
my $port = "3306";
my $user = "root";
my $pw = "";
my $dsn;
$dsn = "dbi:mysql:$database:$host:$port";
my $DBI_connect = DBI->connect($dsn, $user, $pw, {RaiseError => 1,PrintError=>1}) or die "$DBI::errstr\n";
my $sql_str = 'INSERT INTO test_tablexx (\'xxx) VALUES (blah)';
my $DBI_query_handle = $DBI_connect->prepare($sql_str) or die "Can't prepare SQL statement: $DBI::errstr\n";
my $return = $DBI_query_handle->execute() or warn "$DBI::errstr\n";
print "sys arry".Dumper [email protected]"\n";
print "err: ".$DBI_query_handle->err."\n";
print "errstr: ".$DBI_query_handle->errstr."\n";
print "state: ".$DBI_query_handle->state."\n";
print "err: ".$DBI_connect->err."\n";
print "errstr: ".$DBI_connect->errstr."\n";
print "state: ".$DBI_connect->state."\n";
print Dumper $DBI_query_handle;
print "\n\n-------------------------------------------------------------------\n\n";
my $hash = DBI->installed_versions;
print Dumper $hash;
,該表是無效的,列有在它和中間報價值是一個未加引號的字符串。應該像聖誕樹一樣點亮錯誤處理。
如果我將執行語句更改爲「$ DBI :: errstr \ n」,它會出錯:它會死亡,但根本沒有消息。
然而,這裏是結果:
sys arry$VAR1 = '
';
err:
errstr:
state:
err:
errstr:
state:
$VAR1 = bless({}, 'DBI::st');
-------------------------------------------------------------------
$VAR1 = {
'DBD::SQLite' => '1.37',
'DBD::ExampleP' => '12.014311',
'DBD::Sponge' => '12.010003',
'DBD::Pg' => bless({
'original' => '2.19.3',
'qv' => 1,
'version' => [
2,
19,
3
]
}, 'version'),
'DBD::Gofer' => '0.015327',
'DBD::DBM' => '0.08',
'DBD::mysql' => '4.022',
'DBD::ADO' => '2.99',
'DBD::ODBC' => '1.41',
'DBI' => '1.631',
'DBD::File' => '0.42'
};
的最後一位是版本信息轉儲,所以你們可以看到我最新的與我的DBI安裝。
現在,當我改變數據庫的東西不存在,例如:我的$ database =「的testXXX」,它確實火了一個錯誤:
DBI connect('testxx:localhost:3306','root',...) failed: Unknown database 'testxx' at ../sql_tester.pl line 17.
的信息的最後一位爲你當我傾倒$ DBI :: lasth,我可以看到錯誤的方法是聯合國民主基金:
print Dumper $DBI::lasth;
$VAR1 = bless({
'FetchHashKeyName' => 'NAME',
'TraceLevel' => 0,
'ImplementorClass' => 'DBD::mysql::db',
'dbi_imp_data' => undef,
'State' => \undef,
'Username' => 'root',
'Errstr' => \undef,
'ChildHandles' => [
bless({}, 'DBI::st')
],
'Driver' => bless({
'Attribution' => 'DBD::mysql by Patrick Galbraith',
'FetchHashKeyName' => 'NAME',
'TraceLevel' => 0,
'ImplementorClass' => 'DBD::mysql::dr',
'State' => \undef,
'Version' => '4.022',
'Errstr' => \undef,
'ChildHandles' => [
bless({}, 'DBI::db')
],
'Name' => 'mysql',
'Err' => \undef
}, 'DBI::dr'),
'Statement' => 'INSERT INTO test_tablexx (\'xxx) VALUES (blah)',
'Name' => 'test:localhost:3306',
'dbi_connect_closure' => sub { "DUMMY" },
'Err' => \undef
}, 'DBI::db');
所以請請的這麼好的人,我該怎麼辦時,編程的最重要的原則之一 - 錯誤處理 - 在我的程序的核心模塊中不起作用?!
模塊的作者在報告錯誤時說了些什麼? – ikegami