我无法fakes3在El Capitan Beta 5上安装和运行gem.
我试过了:
sudo gem install fakes3
ERROR: While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/fakes3
然后我尝试用cocoapods方式做.它适用于cocoapods,但不适用于fakes3.
mkdir -p $HOME/Software/ruby
export GEM_HOME=$HOME/Software/ruby
gem install cocoapods
[...]
1 gem installed
gem install fakes3
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.
我已经安装了OpenSSL 64.我想为我的nodejs https服务器使用证书.我运行了以下命令:
openssl genrsa -out subdomain.domain.com.key 1024
但我得到了错误:
WARNING: can't open config file: /usr/local/ssl/openssl.cnf
Loading 'screen' into random state - done
Generating RSA private key, 1024 bit long modulus
.........++++++
.........................................++++++
unable to write 'random state'
e is 65537 (0x10001)
我该如何解决？
这是正确的命令吗？
我得到以下控制台日志:
1:14:33 PM [apache] Possible problem detected!
1:14:33 PM [apache] Port 80 in use by "c:\program files (x86)\skype\phone\skype.exe"!
1:14:33 PM [apache] Possible problem detected!
1:14:33 PM [apache] Port 443 in use by "c:\program files (x86)\skype\phone\skype.exe"!
1:14:33 PM [main] Starting Check-Timer
1:14:33 PM [main] Control Panel Ready
1:15:10 PM [apache] Starting apache app...
1:15:11 PM [apache] Status change detected: running
1:15:11 PM [apache] Status change detected: stopped
它说"检测到状态变化:正在运行"到"停止".我试过:
有没有一种简单的方法来增加Glyphicons的大小？
我找到了像Font Awesome这样的解决方案,但不希望包含新的CSS库只是为了增加2号图标.
我试图找到所有具有required属性的字段,它们也应该是visible.因为页面也可以隐藏必填字段.这是我尝试过的:
function validateRequiredFields()
{
$('input,textarea,select').attr('required',true).filter(':visible:first').each(function(i, requiredField){
if($(requiredField).val()=='')
{
alert($(requiredField).attr('name'));
}
});
}
我想为我的localhost创建一个https服务器.
Node JS文档提供了现成的解决方案,但我对它有些困惑.
例
var https = require('https');
var fs = require('fs');
var options = {
key: fs.readFileSync('test/fixtures/keys/agent2-key.pem'),
cert: fs.readFileSync('test/fixtures/keys/agent2-cert.pem')
};
https.createServer(options, function (req, res) {
res.writeHead(200);
res.end("hello world\n");
}).listen(8000);
要么
var options = {
pfx: fs.readFileSync('server.pfx')
};
在这里我如何获得我的localhost的密钥,证书或pfx？
如果输入是'ABBA',那么可能回文是a,b,B,A,BB,ABBA.
我知道确定弦是否是回文很容易.这将是:
public static boolean isPalindrome(String str) {
int len = str.length();
for(int i=0; i<len/2; i++) {
if(str.charAt(i)!=str.charAt(len-i-1) {
return false;
}
return true;
}
但找到回文子串的有效方法是什么？
我正在开发一个登录应用程序.成功登录后,响应cookie数据.
如何使用/保存此数据以用于将来的请求？
对于初学者我试图保存它NSHTTPCookieStorage.但这也行不通.
登录方式(部分):
let task = session.dataTaskWithRequest(request) { (data, responseData, error) -> Void in
if let response = responseData as? NSHTTPURLResponse {
statusCode = response.statusCode
print("Response code: \(statusCode)")
}
var json: NSDictionary?
do {
json = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableLeaves) as? NSDictionary
} catch {
print(error)
err = error
}
if(statusCode != 200) {
let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Error could not parse JSON: '\(jsonStr)'")
}
else {
print("Everything Looks good: \(responseData)")
self.setCookies(responseData!)
self.shouldPerformSegueWithIdentifier("showHomeController", sender: …我在做ant构建时得到了以下内容:
Build\build.xml:247: Problem: failed to create task or type
for
Cause: The name is undefined.
Action: Check the spelling.
Action: Check that any custom tasks/types have been declared.
Action: Check that any <presetdef>/<macrodef> declarations have taken place.
build.xml第247行是 <for param="file">
已经定义<taskdef resource="net/sf/antcontrib/antcontrib.properties"/>,它没有用.然后我特意添加了以下但它仍然无法正常工作.
<taskdef resource="net/sf/antcontrib/antcontrib.properties">
<classpath>
<pathelement location="${env.ANT_HOME}/lib/ant-contrib-1.0b3.jar"/>
</classpath>
</taskdef>
我在C:\ Softwares\apache-ant-1.8.4\lib目录下有ant-contrib-1.0b3.jar.这里缺少什么？
我想从iOS MDM服务开始.计划是做一个概念验证,首先感受一下iOS MDM api然后把它提交给我的经理.关于这个的几个问题: