for example: can the taglib tag library url address in jsp be remote? Can it be local, too? What s the difference? ...
when I was reading, in the queue synchronizer, it is said that only the head node can have the Synchronize status. In the shared access Synchronize status, acquireShared allows multiple threads to obtain the Synchronize status when obtaining the Synchron...
Gods, would you like to ask idea whether it has the function to run server scripts directly, or to restart the jar package automatically after uploading the generated jar to the server using idea ...
execute mvn install error report. It s easy to struggle. What s the reason? have you ever encountered such a situation ?...
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you need to convert an object to a string, one of which is already in JSON format. After the conversion, the double quotation marks of the attribute are escaped ( "). There is no way to change the value of the attribute and convert the other attributes t...
Set < String > set = new HashSet < > (); Why do you often see such new objects? what are the advantages of compared with HashSet < String > set = new HashSet < > (); ? ...
for example, if there are two Boolean variables amenb, respectively, when b=true returns acentrology false, it returns! a, how to implement it with simple operation? how should I write a xxx b xxx? is actually a question of how to: true true f...
mycat has a memory error during operation, crashes, and then automatically restarts; how to find the root cause of the problem? glibc detected java: double free or corruption (out): 0x00007f9338011b30 * JVM exited unexpectedly. JVM exited in res...
use mybatis to configure custom secondary cache. Using xml annotation can use < cache type= "com.test.dao.MybatisRedisCache " > to successfully use custom cache, but using @ CacheNamespace (implementation = MybatisRedisCache.class) on the dao i...
is there any other way to dynamically create objects by reflection ...
How does idea under mac format the selected code? ...
is CAS compare and set or compare and sweep, or are these two different things ...
involves other people s code problems, so the source code is deleted ...
pairs of positive integers (xpeny), the remainder of xrecery y is greater than or equal to k, the input is nmemery k, and the output is how many, for example, input 52, output 7, logarithms are (2magin3) (2magin4) (2mem5) (3pyrr5) (4preline 5) (5pc5), t...
dock with Wechat s voucher interface and issue vouchers to specific users. After the API is successfully called, the user cannot find the location of the voucher, only when he is prompted to use the voucher at the time of payment. ...
background: 1. I am a java programmer 2. Recently interviewed for a senior development position 3. The previous project mainly used less oracle,mysql, and the companies interviewed basically used mysql s 4. I am weak in the database 5. Recently, I...
Front-end proxy server interface controlleraxios postaxiosgetoption tried to implement the filter interface in the background, but it didn t work. Later, I deleted it. Anyway, I have tried many methods that can be found on the Internet . ...
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for testing and production deployment, just throw the front-end page to nginx but at the time of development, how do you deploy the front-end page? ...
how do I optimize the code? function football_exponent_ajax() { $.ajax({ url: urlName + " v1 football oddslive", success: function(res) { let findUpDown = $( .f-w10 ).find( span ); findUpDown.each(function(...
I just know the definition and function of cdn recently, but I still don t know what special function it has. It is said on the Internet that it can solve the problem of cross-operator and cross-region access, and the access delay is greatly reduced. M...
I have recently seen a lot of OOP teaching mysqli (or PDO), found it to be a new world). The way I now connect to databases and statements is to introduce a large php file on each page, including links, and there are many small php files, which may be f...
install the virtual simulator under Android Studio, and the intelhaxm-android file is also installed successfully, but an error is reported when you run the simulator. What s going on? ...
after executing this command, you can open an extension, but I don t quite understand what this principle is. I wish I couldn t find the line that opened the extension in the php.ini configuration file. I hope seniors can explain this. ...