我试图在我的Mac笔记本电脑(OS X 10.9.5)上的SQL Developer中创建一个TNS连接.我得到这个错误no ocijdbc11 in java.library.path我google了,发现我需要安装oracle的即时客户端.我在这里找到了实例客户端文件:
http://www.oracle.com/technetwork/topics/intel-macsoft-096467.html
这些文件只是您需要下载并提取到某处的zip文件.然后我找到了实际告诉你如何处理zip文件的说明:
https://docs.oracle.com/cd/E11882_01/install.112/e38228/inst_task.htm#BABHEBIG
说明说:
将环境变量
DYLD_LIBRARY_PATH和NLS_LANG环境变量设置为instantclient_11_2目录的完整路径.例如,如果您在/bin/oracle目录中解压缩Instant Client zip文件,则将DYLD_LIBRARY_PATH环境变量设置为/bin/oracle/instantclient_11_2.
指令没有告诉我的是如何永久设置环境变量以及如何使SQL开发人员等GUI工具可以访问环境变量.
有没有人让SQL Developer使用instantclient?
也许我误解了Django的update_or_create Model方法的目的。
这是我的模特:
from django.db import models
import datetime
from vc.models import Cluster
class Vmt(models.Model):
added = models.DateField(default=datetime.date.today, blank=True, null=True)
creation_time = models.TextField(blank=True, null=True)
current_pm_active = models.TextField(blank=True, null=True)
current_pm_total = models.TextField(blank=True, null=True)
... more simple fields ...
cluster = models.ForeignKey(Cluster, null=True)
class Meta:
unique_together = (("cluster", "added"),)
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这是我的测试:
from django.test import TestCase
from .models import *
from vc.models import Cluster
from django.db import transaction
# Create your tests here.
class VmtModelTests(TestCase):
def test_insert_into_VmtModel(self):
count = Vmt.objects.count()
self.assertEqual(count, 0)
# create …Run Code Online (Sandbox Code Playgroud) 我有一个在 centos 7 容器上运行的 jenkins 工作。一旦容器启动,jenkins 作业就会运行一个脚本来执行
npm install -g @angular/cli
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这已经工作了大约一年,但今天它开始失败:
/usr/bin/ng -> /usr/lib/node_modules/@angular/cli/bin/ng
> @angular/cli@8.0.4 postinstall /usr/lib/node_modules/@angular/cli
> node ./bin/postinstall/script.js
/usr/lib/node_modules/@angular/cli/bin/postinstall/analytics-prompt.js:8
(async () => {
^
SyntaxError: Unexpected token (
at createScript (vm.js:56:10)
at Object.runInThisContext (vm.js:97:10)
at Module._compile (module.js:549:28)
at Object.Module._extensions..js (module.js:586:10)
at Module.load (module.js:494:32)
at tryModuleLoad (module.js:453:12)
at Function.Module._load (module.js:445:3)
at Module.require (module.js:504:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (/usr/lib/node_modules/@angular/cli/bin/postinstall/script.js:5:1)
npm ERR! Linux 3.10.0-957.1.3.el7.x86_64
npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "install" "-g" "@angular/cli"
npm ERR! node v6.16.0
npm ERR! …Run Code Online (Sandbox Code Playgroud) 我无法理解的eval也许我不明白eqVS ==.我有这个简短的Perl脚本:
[red@tools-dev1 ~]$ cat so.pl
#!/usr/local/bin/perl -w
use strict;
while(<DATA>) {
chomp;
my ($arg1, $arg2, $op ) = split /,/;
if ( $op eq '=' ) {
$op = 'eq';
}
my $cmd = "$arg1 $op $arg2";
print "[$cmd]\n";
my $rc = eval $cmd || 0;
print "rc is [$rc]\n";
}
__DATA__
cat,cat,=
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当我执行它时,我得到:
[red@tools-dev1 ~]$ ./so.pl
[cat eq cat]
rc is [0]
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有人会认为你会......
[cat eq cat]
rc is [1]
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...因为"猫"等于"猫",对吧?
在Android布局xml文件中,可以执行以下操作...
<EditText android:id="@+id/username"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="@string/username" />
<EditText android:id="@+id/password"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:inputType="textPassword"
android:hint="@string/password" />
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这导致GUI看起来像这样: 
如何使用CSS为HTML表单创建相同的效果?
我总是忘记在Perl中如何做到这一点.这是我的脚本:
#!/usr/local/bin/perl -w
use strict;
use Data::Dumper;
my @got = getpwent();
my $username = ${[getpwent()]}[0];
print Dumper( @got );
print "username is [$username]\n";
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......这是它产生的输出......
$VAR1 = 'root';
$VAR2 = 'xxxxxxxxxxxxxxxxxx';
$VAR3 = 0;
$VAR4 = 0;
$VAR5 = '';
$VAR6 = '';
$VAR7 = 'myhost root';
$VAR8 = '/root';
$VAR9 = '/bin/bash';
username is [bin]
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...我的问题是,为什么用户名等于'bin'而不是'root'?
我正在查看CPAN Perl模块的源代码,Digest::Perl::MD5并注意到它有她的爆炸#! /usr/bin/false.这是Digest/Perl/MD5.pm...... 的前几行......
#! /usr/bin/false
#
# $Id: MD5.pm,v 1.19 2004/02/14 02:25:32 lackas Exp $
#
package Digest::Perl::MD5;
use strict;
use integer;
use Exporter;
use vars qw($VERSION @ISA @EXPORTER @EXPORT_OK);
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...为什么Digest :: Perl :: MD5的作者会使用#! /usr/bin/false?如果我的系统没有/usr/bin/false但/bin/false反过来怎么办?
我似乎无法弄清楚如何为我的bash命令行提出正确的正则表达式.这就是我在做的事情:
echo "XML-Xerces-2.7.0-0.tar.gz" | sed -e's/^\(.*\)-[0-9].*/\1/g'
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这给了我......的输出
XML-Xerces-2.7.0
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...但我希望我需要输出...
XML-Xerces
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......我猜我能做到这一点......
echo "XML-Xerces-2.7.0-0.tar.gz" | sed -e's/^\(.*\)-[0-9].*/\1/g' | sed -e's/^\(.*\)-[0-9].*/\1/g'
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...但我想知道如何sed更好地理解正则表达式.
更新:
我试过这个......
echo "XML-Xerces-2.7.0-0.tar.gz" | sed -e's/^\([^-]*\)-[0-9].*/\1/g'
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......作为建议但是产出 XML-Xerces-2.7.0-0.tar.gz
我有一个具有此文件结构的角度组件:
.
|____custom-d3-tree.component.css
|____custom-d3-tree.component.spec.ts
|____custom-d3-tree.component.ts
|____custom-d3-tree.module.ts
|____custom-d3-tree.service.spec.ts
|____custom-d3-tree.service.ts
|____tree.dendo.model.ts
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该文件tree.denco.model.ts定义:
export class TreeModel {
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它实现了一个 d3 树。树中的节点在其中foreignObject定义了包含订单列表的 's。这是将 foreignObject 添加到矩形节点的代码:
nodeEnter.append('foreignObject')
.attr('x', function(d) { if(d.data.component_type) { return 5; } return 0; })
.attr('y', function(d) { if(d.data.component_type) { return 5; } return 0; })
.attr('width', this.rect_width)
.attr('height', this.rect_height)
.style('overflow', 'auto')
.append('xhtml')
.style("font", "10px 'Helvetica Neue'")
.html(function (d) {
if( d.data.component_type ) {
return '<div style="width: ' + (d.width - 10) + 'px; height: '
+ (d.height - …Run Code Online (Sandbox Code Playgroud) 我正在尝试创建一个事件桥规则,该规则将每 30 分钟运行一次 Lambda 函数。我的代码基于我在 SO Use terraform to set up a lambda functiontriggered by a Scheduled event source上找到的答案
这是我的地形代码:
监控/main.tf:
...
module "cloudwatch_event_rule" {
source = "./cloudwatch_event_rule"
extra_tags = local.extra_tags
}
module "lambda_function" {
source = "./lambda_functions"
extra_tags = local.extra_tags
alb_names = var.alb_names
slack_webhook_url = var.slack_webhook_url
environment_tag = local.environment_tag
}
module "cloudwatch_event_target" {
source = "./cloudwatch_event_target"
lambda_function_arn = module.lambda_function.detect_bad_rejects_on_alb_lambda_arn
cloudwatch_event_rule_name = module.cloudwatch_event_rule.cloudwatch_event_rule_name
extra_tags = local.extra_tags
}
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监控/lambda_functions/main.tf:
resource "aws_lambda_function" "detect_bad_rejects_on_alb" {
filename = var.filename
function_name = var.function_name
role = …Run Code Online (Sandbox Code Playgroud) perl ×3
css ×2
android ×1
angular ×1
angular-cli ×1
aws-lambda ×1
bash ×1
cpan ×1
d3.js ×1
django ×1
django-tests ×1
html ×1
javascript ×1
macos ×1
npm ×1
regex ×1
sed ×1
terraform ×1