我正在尝试使用twitter4j库为我的java项目发送推文.在我第一次运行时,我收到了关于证书sun.security.validator.ValidatorException和错误的错误sun.security.provider.certpath.SunCertPathBuilderException.然后我添加了twitter证书:
C:\Program Files\Java\jdk1.7.0_45\jre\lib\security>keytool -importcert -trustcacerts -file PathToCert -alias ca_alias -keystore "C:\Program Files\Java\jdk1.7.0_45\jre\lib\security\cacerts"
但没有成功.这是获得twitters的过程:
public static void main(String[] args) throws TwitterException {
ConfigurationBuilder cb = new ConfigurationBuilder();
cb.setDebugEnabled(true)
.setOAuthConsumerKey("myConsumerKey")
.setOAuthConsumerSecret("myConsumerSecret")
.setOAuthAccessToken("myAccessToken")
.setOAuthAccessTokenSecret("myAccessTokenSecret");
TwitterFactory tf = new TwitterFactory(cb.build());
Twitter twitter = tf.getInstance();
try {
Query query = new Query("iphone");
QueryResult result;
result = twitter.search(query);
System.out.println("Total amount of tweets: " + result.getTweets().size());
List<Status> tweets = result.getTweets();
for (Status tweet : tweets) {
System.out.println("@" + tweet.getUser().getScreenName() + " …我正在尝试在Ubuntu中安装Phonegap.NodeJS的安装很成功,但我无法安装Phonegap本身.这是终端的错误输出:
test@test-VirtualBox:~$ sudo npm install -g phonegap
npm http GET https://registry.npmjs.org/phonegap
npm http GET https://registry.npmjs.org/phonegap
npm http GET https://registry.npmjs.org/phonegap
npm ERR! Error: UNABLE_TO_VERIFY_LEAF_SIGNATURE
npm ERR! at SecurePair.<anonymous> (tls.js:1350:32)
npm ERR! at SecurePair.EventEmitter.emit (events.js:92:17)
npm ERR! at SecurePair.maybeInitFinished (tls.js:963:10)
npm ERR! at CleartextStream.read [as _read] (tls.js:463:15)
npm ERR! at CleartextStream.Readable.read (_stream_readable.js:320:10)
npm ERR! at EncryptedStream.write [as _write] (tls.js:366:25)
npm ERR! at doWrite (_stream_writable.js:219:10)
npm ERR! at writeOrBuffer (_stream_writable.js:209:5)
npm ERR! at EncryptedStream.Writable.write (_stream_writable.js:180:11)
npm ERR! at write (_stream_readable.js:573:24)
npm ERR! If …我将在我的PhoneGap应用程序中实现注销按钮,该应用程序将用户返回到认证页面(带有已清除的字段).对于按钮我正在使用onclick事件的锚点:
<script type="text/javascript">
function doLogout() {
var backlen = history.length;
history.go(-backlen);
window.location.replace("index.html");
}
</script>
<a data-role="none" href="#" onclick="doLogout"></a>
但它不起作用,即它只是让我回到已经填充的文件的认证页面,似乎只是后退一步.我不确定history.clear(),因为谷歌搜索它没有给我任何东西:
<a data-role="none" href="index.html" onclick="javascript:history.clear();"></a>
谁能告诉我我的问题在哪里？如果有其他解决方案来处理PhoneGap中的注销事件,我会遵循它.谢谢
我想通过调用moodle url来获取json数据:
https://<moodledomain>/login/token.php?username=test1&password=Test1&service=moodle_mobile_app
moodle系统的响应格式如下:
{"token":"a2063623aa3244a19101e28644ad3004"}
我试图用PHP处理的结果:
if ( isset($_POST['username']) && isset($_POST['password']) ){
// test1 Test1
// request for a 'token' via moodle url
$json_url = "https://<moodledomain>/login/token.php?username=".$_POST['username']."&password=".$_POST['password']."&service=moodle_mobile_app";
$obj = json_decode($json_url);
print $obj->{'token'}; // should print the value of 'token'
} else {
echo "Username or Password was wrong, please try again!";
}
结果是:未定义
现在的问题是: 如何处理moodle系统的json响应格式？任何想法都会很棒.
[更新]: 我通过curl使用了另一种方法,并在php.ini中更改了以下行:*extension = php_openssl.dll*,*allow_url_include = On*,但现在出现错误:注意:尝试获取非属性宾语.这是更新的代码:
function curl($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, …我正在为Android开发一个基于phonegap的应用程序,并想知道如何运行另一个应用程序,甚至在当前设备中未安装所需的应用程序时进入Android市场.
任何帮助,将不胜感激.
我正在尝试为html5表单实现一个javascript代码，该代码将负责禁用/启用按钮，直到未选择select元素。这是代码：
HTML：
<form name="courseForm" id="courseForm">
<select name="coursetype" id="coursetype" onchange="enableStartBtn()">
<option value="0" selected="selected">Select here...</option>
<option value="1">CourseName 1</option>
<option value="2">CourseName 2</option>
<option value="3">CourseName 3</option>
</select>
<button type="button" id="startBtn" disabled="disabled" onclick="Test()">Start</button>
</form>
和JavaScript：
function enableStartBtn() {
$('#startBtn').removeAttr('disabled');
}
function Test() {
var form = $('#courseForm');
var course = $('#coursetype', form).val();
if (course == '0') {
alert('Select the course first!');
} else if (course == '1') {
alert('CourseName 1 is selected!');
} else if (course == '2') {
alert('CourseName 2 is selected!'); …我需要根据特定的索引名称对Set数据进行排序.我有以下数据:
txt_4: somevalue
txt_2: somevalue
txt_1: somevalue
txt_0: somevalue
txt_3: somevalue
我该如何对这些数据进行排序？谢谢.
更新:
排序后的预期数据:
txt_0: somevalue
txt_1: somevalue
txt_2: somevalue
txt_3: somevalue
txt_4: somevalue
我有三个包含数据的表，如下所示：
用户
Id Name Other_Columns
---------------------------
1 John Blah
2 Ricky Blah
3 Stella Blah
4 Bob Blah
萨尔多
Id User_id Saldo
--------------------
1 3 0.00
2 1 9.00
3 2 0.15
4 4 3.50
付款
Id User_id Amount Paid_date
------------------------------------------
1 2 10.00 2014-09-01 08:10
2 2 25.00 2014-09-01 09:00
3 3 100.00 2014-05-10 12:47
4 1 20.50 2014-02-23 15:30
如何得到这样的结果：
Id Name Saldo Last Payment
------------------------------------------
1 John 9.00 23.02.2014 20.50
2 Ricky 0.15 01.09.2014 25.00
3 Stella …