Tag：grey
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Time：2021-12-1
Several postures of parameter transfer of mybatis in springboot series In the daily development of mybatis, how do the parameters defined in the mapper interface map to the parameters in XML? In addition to our [email protected] are the other ways besides annotation? What happens to the default scenario without annotations? What should I do if […]
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Time：2021-12-1
Method 1:readonlyIt is specified that the input field is read-only and can be copied. However, the user can use the tab key to switch to this field, select, receive focus, and select or copy its text. (status: the input box will turn gray) <input type=”text” value=”hello JavaScript” readonly=”readonly”> Method 2:disabledThe disabled input element can be […]
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Time：2021-11-28
[DB series] use posture of escape character of mybatis It is convenient and concise to write SQL directly in the XML file of mybatis, but it should be noted that in the XML file, some scenes that need escape, such as query, are often encounteredid < xxxThe less than sign cannot be written directly in […]
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Time：2021-11-21
[springboot DB series] jooq’s new record usage posture Next, we begin to enter the use posture series of jooq’s addition, deletion, modification and query. This article will mainly introduce how to use jooq to add data <!– more –> 1. Project construction The project relies onSpringBoot 2.2.1.RELEASE + maven 3.5.3 + IDEADevelop 1. Project dependency […]
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Time：2021-10-31
[springboot DB series] publish and subscribe to advanced features of redis Generally speaking, when there is business logic for messages in our business, we use mature rabbitmq and rocketmq directly. But in some simple business scenarios, is it really necessary to introduce an additional MQ? This article will introduce the publish and subscribe mode of […]
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Time：2021-10-25
[springboot DB series] hyperloglog of redis advanced features The hyperloglog algorithm uses very little space to achieve relatively large data level statistics; For example, during the introduction of bitmap, we talked about the statistics of daily life. When the amount of data reaches millions, the best storage method is hyperloglog. This paper will introduce the […]
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Time：2021-9-14
[springboot DB series] Introduction to bitmap usage posture and application scenarios of redis advanced features The five basic data structures of redis, such as string, list, set, Zset and hash, are relatively common; Based on these basic results, redis also provides some more advanced functions, such as GEO, bitmap, hyperlog and Pub / sub. this […]
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Time：2021-8-17
Last blog postUsage posture and performance comparison of common bean copy frameworksThis paper introduces the usage posture and performance comparison of several bean copy frameworks, which are mainly applicable to the copy with the same attribute name and type. In the actual business development, the conversion of hump and underline is often used. This paper […]
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Time：2021-7-24
[springboot web series] Webflux static resource configuration and access The last blog post introduced the static resource access of spring MVC. Is the static resource access posture consistent in Webflux <!– more –> 1. Default configuration Like the default configuration of springboot, Webflux is the sameclasspath:/META-INF/resources/,classpath:/resources/,classpath:/static/,classpath:/public/ That is, static files can be directly accessed by […]
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Time：2021-6-16
It’s a pity that the Wenchuan earthquake on May 12, 2008 took away a lot of lives. In order to express deep mourning for the victims, the State Council has decided that May 19-21, 2008 will be the national day of mourning. During this period, many websites changed their styles to “black, white and gray” […]
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Time：2021-5-11
Recently, when I was working on the uni app project, I met the need to produce the function of printing files by Bluetooth. I found a tutorial on the Internet, which I can share with you. Introducing tsc.js It’s easy to introduce it to the page you need. This time, we only need to go […]
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Time：2020-10-27
bullshit Have you ever encountered the situation that Netease cloud client cannot be installed? Have you ever encountered the situation that Netease cloud can’t play grey songs? As a geek, do you think it’s cool to listen to songs with vs Code? Here’s the best way to fish and listen to music: VSC Netease music […]
