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一文带你了解 OAuth2 协议与 Spring Security OAuth2 集成！

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> OAuth 2.0 允许第三方应用程序访问受限的HTTP资源的授权协议，像平常大家使用 Github 、 Google 账号来登陆其他系统时使用的就是 OAuth 2.0 授权框架，下图就是使用 Github 账号登陆 Coding 系统的授权页面图：类似使用 OAuth 2.0 授权的还有很多，本文将介绍 OAuth 2.0 相关的概念如：角色、授权类型等知识，以下是我整理一张 OAuth 2.0 授权的脑头，希望对大家了解 OAuth 2.0 授权协议有帮助。文章将以脑图中的内容展开 OAuth 2.0 协议同时除了 OAuth 2.0 外，还会配合 Spring Security OAuth2 来搭建 OAuth2客户端，这也是学习 OAuth 2.0 的目的，直接应用到实际项目中，加深对 OAuth 2.0 和 Spring Security 的理解。 OAuth 2.0 角色 OAuth 2.0 中有四种类型的角色分别为：资源Owner 、授权服务、客户端、资源服务，这四个角色负责不同的工作，为了方便理解先给出一张大概的流程图，细节部分后面再分别展开： OAuth 2.0 大概授权流程资源 Owner 资源 Owner可以理解为一个用户，如之前提到使用 Github 登陆

context.getContentResolver().query()详细用法详解

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1.获取联系人姓名一个简单的例子，这个函数获取设备上所有的联系人ID和联系人NAME。 [java] view plain copy public void fetchAllContacts() { ContentResolver contentResolver = this.getContentResolver(); Cursor cursor = contentResolver.query(android.provider.ContactsContract.Contacts.CONTENT_URI, null, null, null, null); cursor.getCount(); while(cursor.moveToNext()) { System.out.println(cursor.getString(cursor.getColumnIndex(android.provider.ContactsContract.Contacts._ID))); System.out.println(cursor.getString(cursor.getColumnIndex(android.provider.ContactsContract.Contacts.DISPLAY_NAME))); } cursor.close(); } 执行结果： [java] view plain

send Image from android to MySQL server

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问题 In Activity A, it has 3 listView . When submit button is clicked, I want to store the text and imagePath into MySQL and the image stored in PhotoUpload folder. String imagess; Uri imgURI; public void uploadImageAndText(ArrayList<ImageAndText> listItems, final String id) { JSONArray jsonArray = new JSONArray(); try { for (ImageAndText i : listItems) { JSONObject object = new JSONObject(); String type = i.getType(); String[] Type = type.split(":"); object.put("type", Type[1]); Toast.makeText

Odata v.4 $filter for the DateTime Calendar Events in the Office 365 REST API

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问题 I am trying to get and filter Calendar events from the Office 365 REST API with the following query: https://outlook.office.com/api/v2.0/users/user@user.com/calendars/AAAAAAAAAAA/events?$top=100&$select=BodyPreview&$filter=Start ge 2016-02-10T22:00:00Z So I want 100 results with only the BodyPreview as return value for all Events greater than 2016-02-10 22:00:00. The Error Message I receive is this one: ERROR request returned 400 error: code: 'RequestBroker-ParseUri', message: 'A binary

How to send XML in a URI for posting to a Web API app?

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问题 I need to send a uri to a Controller method in my my Web API app which has the following signature: public HttpResponseMessage PostXMLFile(string serialNum, string siteNum, XElement xElement) Or should it be this instead: public HttpResponseMessage PostXMLFile(string serialNum, string siteNum, List<XElement> xElements) ? Anyway, as you can see, it can't be just the XML, but must have the serialNum and siteNum args, too. I'm assuming the uri can look like this: http://<machineName>:<port>/api/

Accessing URL/URI information in Rails in the environments file?

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问题 How would I access the domain name from Rails inside the environments/deveopment.rb? I want to find out whether or not I am on localhost or a real domain. Thank you! 回答1: The environment files are not processed on every request- only at startup, so there wouldn't be any particular context at the time they are processed. This is really the job for a separate environment instead of having dev do double duty. If you just want to check against the hostname or something though, you can do

Nginx 反向代理详解

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　　Nginx 服务器的反向代理服务是其最常用的重要功能，由反向代理服务也可以衍生出很多与此相关的 Nginx 服务器重要功能。 1、代理　　在Java设计模式中，代理模式是这样定义的：给某个对象提供一个代理对象，并由代理对象控制原对象的引用。　　可能大家不太明白这句话，在举一个现实生活中的例子：比如我们要买一间二手房，虽然我们可以自己去找房源，但是这太花费时间精力了，而且房屋质量检测以及房屋过户等一系列手续也都得我们去办，再说现在这个社会，等我们找到房源，说不定房子都已经涨价了，那么怎么办呢？最简单快捷的方法就是找二手房中介公司（为什么？别人那里房源多啊），于是我们就委托中介公司来给我找合适的房子，以及后续的质量检测过户等操作，我们只需要选好自己想要的房子，然后交钱就行了。　　代理简单来说，就是如果我们想做什么，但又不想直接去做，那么这时候就找另外一个人帮我们去做。那么这个例子里面的中介公司就是给我们做代理服务的，我们委托中介公司帮我们找房子。　　Nginx 主要能够代理如下几种协议，其中用到的最多的就是做Http代理服务器。 2、正向代理　　弄清楚什么是代理了，那么什么又是正向代理呢？　　这里我再举一个例子：大家都知道，现在国内是访问不了 Google的，那么怎么才能访问 Google呢？我们又想，美国人不是能访问 Google吗（这不废话，Google就是美国的）

Sending android audio recorded file as an attachment of an email giving error when trying to read file (URI path not absolute)

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问题 I'm saving an audio file using Media recorder and the following code: public class AudioRecorder { final MediaRecorder recorder = new MediaRecorder(); final String path; /** * Creates a new audio recording at the given path */ public AudioRecorder(String path) { this.path = sanitizePath(path); } public static String sanitizePath(String path) { if (!path.startsWith("/")) { path = "/" + path; } if(path.endsWith("/")){ path = path + "/"; } return path; } /** * Starts a new recording. */ public

Unknown error using Digg API and URI handler (silverlight)

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问题 For class we have to follow a tutorial to create a silverlight website that searches DIGG for a given topic. (Using this tutorial as a base: http://weblogs.asp.net/scottgu/archive/2010/02/22/first-look-at-silverlight-2.aspx) We have to use the following code to fetch the information from DIGG. private void buttonSearch_Click(object sender, RoutedEventArgs e) { string topic = textboxSearchTopic.Text; WebClient digg = new WebClient(); digg.DownloadStringCompleted += new

How to validate URIs by checking if those refer to a given domain name?

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问题 I am running Ruby on Rails 4.1.1 and I would like to validate URIs by checking if those are within a given domain name. That is, a uri string can be sent as params to my controller and I would like to check if that uri "refers" to my application domain name www.myapp.com . Of course, the uri should be a valid URI reference. # Invalid URIs www.website.com http://www.website.com http://www.website.com/ https://www.website.com/ ftp://www.website.com/ ftps://www.website.com/ http://www.website

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