Please indicate the source when reprinting: News APP back-end system architecture growth path - high availability architecture design 1. Entering the Holy Land for the first time 2. Foundation building: complete reconstruction 3. Golden elixir: step on the trap. . And it’s a big trap 4. Yuanying: Facing challenges, traffic is coming 5. Out of body: server architecture adjustment and optimization 6. Overcoming the Tribulation: Service Governance Platform 7. Mahayana: high availability of the server 8. Ascension: High availability of the client-[2017 HTTPS+HTTP-DNS] 1. Entering the Holy Land for the first time Due to work arrangements, some seniors from the original APP backend were transferred to other business departments. They began to take over the client backend work at the end of 2015. Entering the Holy Land for the first time was like entering purgatory. At that time, because there was still a lot of business development work at hand that needed the continued support of my friends, I had no choice but to break into APP back-end development alone. From the original content business development that was handy to the APP back-end interface development, there is a lot of APP professional knowledge that I still don’t understand, and I can only learn a little bit and implement
Introduction: Over the past year It has been a hard journey from accepting the APP back-end job to now. I have gone through countless pits and learned a lot from it. My boss has reminded me many times before that I usually summarize more and formulate my experience into a system, but I have been busy with development most of the time. , deal with problems, and move forward non-stop every day. Seeing that the Spring Festival is approaching, 2016 has passed, the business has developed greatly, and our system has become more and more perfect. I never had time to calm down and look back. Now with 6.0
2. Translating Web Service Applications with XSL
#Introduction: A common problem with web service applications is that the actual backend software does not support xml (or at least does not support the using standardized XML). To solve this problem, many architectures implement a translation phase that interprets the received XML and converts it into a more appropriate format that the backend system can recognize. Although there are many ways to translate XML into different formats, the extensible stylesheet language (eXtensibleStylesheet Language, XSL) provides a robust, standard, and XML-friendly solution.
3. Using experience of queue service (queue) in Laravel 4.2, laravelqueue_PHP tutorial
Introduction: Laravel 4.2 Experience using queue service (queue), laravelqueue. Experience using queue service (queue) in Laravel 4.2, laravelqueue In the past half month, I participated in rewriting a WeChat public account back-end system, using laravel 4.2 for the first time, and laravel cited
4. Experience using the queue service (queue) in Laravel 4.2, laravelqueue
Introduction: Experience using the queue service (queue) in Laravel 4.2, laravelqueue. Experience using queue service (queue) in Laravel 4.2, laravelqueue In the past half month, I participated in rewriting a WeChat public account back-end system, using laravel 4.2 for the first time, and laravel cited
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RSS documents are XML-based structured files used to publish and subscribe to frequently updated content. Its main functions include: 1) automated content updates, 2) content aggregation, and 3) improving browsing efficiency. Through RSSfeed, users can subscribe and get the latest information from different sources in a timely manner.

The XML structure of RSS includes: 1. XML declaration and RSS version, 2. Channel (Channel), 3. Item. These parts form the basis of RSS files, allowing users to obtain and process content information by parsing XML data.

RSSfeedsuseXMLtosyndicatecontent;parsingtheminvolvesloadingXML,navigatingitsstructure,andextractingdata.Applicationsincludebuildingnewsaggregatorsandtrackingpodcastepisodes.

RSS documents work by publishing content updates through XML files, and users subscribe and receive notifications through RSS readers. 1. Content publisher creates and updates RSS documents. 2. The RSS reader regularly accesses and parses XML files. 3. Users browse and read updated content. Example of usage: Subscribe to TechCrunch's RSS feed, just copy the link to the RSS reader.

The steps to build an RSSfeed using XML are as follows: 1. Create the root element and set the version; 2. Add the channel element and its basic information; 3. Add the entry element, including the title, link and description; 4. Convert the XML structure to a string and output it. With these steps, you can create a valid RSSfeed from scratch and enhance its functionality by adding additional elements such as release date and author information.

The steps to create an RSS document are as follows: 1. Write in XML format, with the root element, including the elements. 2. Add, etc. elements to describe channel information. 3. Add elements, each representing a content entry, including,,,,,,,,,,,. 4. Optionally add and elements to enrich the content. 5. Ensure the XML format is correct, use online tools to verify, optimize performance and keep content updated.

The core role of XML in RSS is to provide a standardized and flexible data format. 1. The structure and markup language characteristics of XML make it suitable for data exchange and storage. 2. RSS uses XML to create a standardized format to facilitate content sharing. 3. The application of XML in RSS includes elements that define feed content, such as title and release date. 4. Advantages include standardization and scalability, and challenges include document verbose and strict syntax requirements. 5. Best practices include validating XML validity, keeping it simple, using CDATA, and regularly updating.

RSSfeedsareXMLdocumentsusedforcontentaggregationanddistribution.Totransformthemintoreadablecontent:1)ParsetheXMLusinglibrarieslikefeedparserinPython.2)HandledifferentRSSversionsandpotentialparsingerrors.3)Transformthedataintouser-friendlyformatsliket


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