如何解析Apex中给定格式的jsonObject？
我需要来自items数组的List <String>,其中包含id属性.什么是合适的方法？
为了解析它,我尝试用代码创建一个类:
public class JSON2Apex {
public class Items {
public String kind;
public String etag;
public String id;
public String status;
public String htmlLink;
public String created;
public String updated;
public String summary;
public String description;
public String location;
public Creator creator;
public Creator organizer;
public Start start;
public Start end;
public String iCalUID;
public Integer sequence;
public Reminders reminders;
}
public class Reminders {
public Boolean useDefault;
}
public class Start {
public String dateTime;
} …嗨,我想创建一个播放广播电台的Android应用程序.我在谷歌搜索,主要发现两个API.
1.streamfinder.com API(显示它有10000个电台数据和流)
2.ShoutCast API(显示全球超过40000个广播电台)
但我读了一个查询,ShoutCast停止为其API提供开发密钥:
Internet Radio Streaming API.
任何人都可以建议,哪个API应该用于互联网广播流.
我是yeoman工具的新手.我在Ubuntu 12中运行以下命令
$ npm install -g yo
$ npm install -g generator-webapp
$ yo webapp
我能够创建一个Web应用程序项目.之后我尝试创建一个角度项目.首先我运行一个命令
$ npm install -g generator-angular
安装此发电机时不会显示错误.
当我运行命令
$ yo angular
我收到错误:
Error angular
You don't seem to have a generator with the name angular installed.
You can see available generators with npm search yeoman-generator and then install them with npm install [name].
To see the 2 registered generators run yo with the `--help` option.
怎么解决这个？当我运行命令
$ ls $(npm config get prefix)/lib/node_modules
输出是:
bower generator-angular …我正在创建一个使用bootstrap构建的HTML页面.以下是hello.js文件的最终HTML代码和代码:
document.getElementById("subm").onclick = function () {
alert("Hello WOrld");
}<!DOCTYPE html>
<html>
<head>
<title>Calculator</title>
<link rel="stylesheet" href="/stylesheets/style.css">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
</html>
<body>
<link rel="stylesheet" href="/stylesheets/bootstrap.min.css">
<script src="http://code.jquery.com/jquery.js"></script>
<script src="javascripts/bootstrap.min.js"></script>
<script src="javascripts/hello.js"></script>
<h1>Calculator</h1>
<form class="form-horizontal center1">
<div class="control-group">
<label for="num1" class="control-label">Number1</label>
<div class="controls">
<input id="num1" type="number" placeholder="Enter an Integer">
</div>
</div>
<div class="control-group">
<label for="num2" class="control-label">Number2</label>
<div class="controls">
<input id="num2" type="number" placeholder="Enter an Integer">
</div>
<div class="control-group">
<label for="options" class="control-label">Options</label>
<div class="controls"><br>
<select id="options">
<option value="+">+</option>
<option value="-">-</option>
<option …我必须将heroku帐户从一个切换到另一个.我尝试使用heroku登录.但是当我尝试使用命令部署我的应用程序时
git push heroku master
但我得到错误
Agent admitted failure to sign using the key.
! Your account ritesh@iritesh.com does not have access to young-plains-9347.
!
! SSH Key Fingerprint: 3f:bf:62:23:04:b3:7a:ff:a8:15:59:43:37:c0:4d:6e
fatal: The remote end hung up unexpectedly
哪里ritesh@iritesh.com是我以前的帐户.如何摆脱这个错误？请指导.
嗨,我正在尝试创建一个顶点休息服务,但得到错误Http*方法的无效类型:system.RestRequest
这是我收到此错误的函数.
@RestResource(urlMapping='/v.9/scorecard/*')
global with sharing class ScorecardRestSvc {
/**
* @date July 26, 2011
* @description Update a question answer.
* @return Map<String,String> - results and boolean success message
*/
@HttpPost
global Static Map<String,String> doPut(RestRequest req, RestResponse res) {
String answerId = req.requestURI.substring(req.requestURI.lastIndexOf('/')+1);
string updateResult = 'Waiting to run';
Map<String,String> returnMap = new Map<String,String>();
returnMap.put('Success','True');
// mark the participant as having no submission
if(req.params.containsKey('deleteSubmission') && req.params.get('deleteSubmission').toLowerCase() == 'true') {
markParticipantAsNoSubmission(req,res);
returnMap.put('Message','Participant marked as no submission.');
return returnMap;
}
try …我有一个ec2.it的实例有一些files.i试图从ec2实例下载我的文件到我的本地Ubuntu 13.10.i运行此命令
scp -i /home/ritesh/.ssh/id_rsa2 apps@XXX.20.24.XXX:/home/apps/dev/comp-eng/arena-client/build/arena-client-7.1.0.zip
在输出中我得到了
用法:scp [-12346BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file] [-l limit] [-o ssh_option] [-P port] [-S program] [[user @] host1:] file1 ... [[user @] host2:] file2
我正在使用正确的格式.为什么我面临这个错误而不是下载文件？
我正在浏览railstutorial.org书并在代码中收到Unknown属性错误
我的User.rb文件代码是
# == Schema Information
#
# Table name: users
#
# id :integer not null, primary key
# name :string(255)
# email :string(255)
# created_at :datetime not null
# updated_at :datetime not null
#
class User < ActiveRecord::Base
attr_accessible :email, :name, :password, :password_confirmation
validates :name,presence:true,length: { maximum:50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
validates :email,presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness:{ :case_sensitive => false }
before_save { |user| user.email = email.downcase }
end
和我的user_spec.rb文件代码是
require 'spec_helper'
describe User do …我正在编写一个代码我用java nio api创建一个目录,我的代码片段是
Path target = Paths.get(""+folder_path+xx[0]);
Set<PosixFilePermission> perms = null;
if(xx[2].toLowerCase().equals("read"))
perms =PosixFilePermissions.fromString("r--------");
if(xx[2].toLowerCase().equals("read/write"))
{
perms =PosixFilePermissions.fromString("rw-------");
}
FileAttribute<Set<PosixFilePermission>> attr = PosixFilePermissions.asFileAttribute(perms);
Files.createDirectory(target, attr);
但这是一个错误
java.nio.file.FileAlreadyExistsException: /home/ritesh/Desktop/userA
我知道的原因是因为一个目录已经具有相同的名称,但我想用我的代码目录生成的目录覆盖userA目录如何完成这个？
嗨,我想获得iframe元素的内在HTML
我的html文档结构是这样的
<body>
<div>
<iframe id="frame1">
<html>
<button id="mybutton">click me</button>
</html>
</iframe>
</div>
</body>
我正在创建一个chrome扩展我必须在点击id mybutton的按钮时显示警告我写了一个内容脚本
var greeting = "hola, ";
document.body.innerHTML='<div><iframe id="frame1" src="http://onemoredemo.appspot.com/"></iframe></div>' ;
var iframe = document.getElementById("frame1");
var iframeDocument = iframe.contentDocument || iframe.contentWindow.document
var button = iframeDocument.getElementById("mybutton") ;
if(button ==null)
alert("button is null") ;
我在访问页面时在chrome中安装了此扩展程序,然后将文档正文更改为iframe,其中包含一个按钮.但我正面临一个警报,其中按钮为空但在iframe中有按钮为什么我为此按钮获取null？
html javascript iframe google-chrome google-chrome-extension
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