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App background Architecture Design
prepare to start an app background development. The basic framework is spring, spring mvc, mybatis (write), jdbctemplate (read).
in order to deal with the problem of high concurrency in the future, what designs or technologies are best carried out in ...
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I want to teach myself the background management system to manage the foreground data.
for example, a blog, an administrator manages blog articles, adds or deletes article modules, and there are no documents or videos related to tutorials, kneel and beg! the existing knowledge base: vue (skillfully uses vue scaffolding to build foreground...
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Mongodb database reported an error, why?
mongoose
What is the reason for ?
...
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How to avoid the background of the website, the robot brushes the interface?
for example, I have a page click statistics function. Could you tell me how to avoid being brushed by the program?
if someone uses the machine to swipe the interface, will the server be killed and down ~
...
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How is a background management system like this implemented?
in a background management system like this, we can switch the content on the right by clicking on the menu on the left, so how can we load the different content on the right without using the frame? Was it written dead in the first place?
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How to assign a value to url in backgroundImage in vue?
<div class="img2" :style="{backgroundImage: url(http: xx.com:8091 upload 17.jpg) }">< div>
http: xx.com:8091 upload 17.jpg
http_url= http: xx.com:8091 upload 17.jpg ;
http_url
ps::`<div class="img2&q...
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The problem of slow data acquisition due to the small bandwidth of CVM
first describe the background of the problem: we have made a video-like personal network. The solution is to upload the video to the backend of the project (on Ali s ECS CVM) in the browser and upload it to oss at the backend. When playing the video, th...
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How to implement java background tasks that are time-consuming for front-end requests without timeout?
the business needs a button at the front end, which is clicked and submitted to the background to execute a time-consuming background task, which takes about a few minutes to dozens of minutes, and the front end needs to know the result of the task exec...
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Back-end and front-end can not be developed in parallel, how to solve this problem?
as the title at the beginning of a new project, when the front end uses a data-driven front-end framework, much of the front-end work depends on the back-end interface format. So you have to wait for background development, while the front end has nothi...
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A GET 405 error occurred in the $.ajax request
A page written by bootstrap:
:
:
this is the background code:
@PostMapping(value = "forgetPassword", produces = "application json;charset=utf-8")
@ResponseBody
public String forgetPassword(@RequestParam("email&quo...
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How does mongodb handle concurrent requests?
WeChat Pay document mentioned: before checking and processing business data, data locks should be used for concurrency control. In order to avoid data confusion caused by function reentry, the Wechat server notifies the same payment result with a frequen...
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Find a plug-in or script that highlights the image address of a readable page
1. because there are a bunch of picture link addresses in the background, and you need to check them one by one, in order not to repeat a manual copy of the picture address, and then paste it into the browser input box, you want to find a plug-in or oi...
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How to make a page at the front end of the server pop up a dialog box by calling the background interface
my requirement is: the Android side requests the background interface, and then the background interface makes the background management system page pop-up dialog box, how to achieve it?
as shown in the figure, the background interface is written i...
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Shiro question: how do you authorize administrators?
for example, because shiro commonly uses to assign permissions according to roles, then the problem arises: in the background management system, some resources are accessible to all administrators, but some fine-grained resources must have correspondi...
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SpringBoot configuration Shiro, after customizing Filter, setting anon is still not open
paste the code first. Anyone who has used shiro should be able to see what I am doing here. Now the problem comes .
@Bean("shiroFilter")
public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager,UserService userService){
Sh...
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The background judges that the token expires, and the background refreshes the token,. What should be done next?
as shown in the title
Let me describe the problem I encountered in detail. If I try to send the request again, the background verifies the token, in the header. If at this time, the token is found to have expired, and then a series of judgments are ma...
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Under SpringBoot, the uploaded information includes text and multiple pictures. How to wait for the picture to be uploaded, return the address for processing, and save it to the database together with the text?
I would like to describe in detail the problems I have encountered. For example, I am going to publish an article, and this article contains not only text, but also a few pictures. If you directly request the interface, the background receives the file,...
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How to write Chinese to a specified fd by cPP network programming
normally, the functions used in network programming are ssize_t read (int fd, void * buf, size_t nbyte) ssize_t write (int fd, const void * buf, size_t nbytes) to transmit byte by byte.
but usually, a word in Chinese accounts for 2 to 3 bytes, so g...
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How can I get the statistics of individual nail punching time?
is there any way to get statistics on the time of individual nail punching, such as the time of getting off work every day for a month?
the following attempts have been made:
grab the bag. Check that the data is encrypted. Failed
look at the docu...
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How to solve the conflict between ElasticsearchRepository and @ Mapper registering Bean in SpringBoot
as mentioned in the question, I used Elasticsearch + mybatis. There was a problem in the integration. First, the figure
@MapperElasticsearchRepositorymybatisElasticsearchdaoElasticsearchRepository
articleDao beanActionspring.main.allow-bean-definit...