get the code as shown in the figure, the ip address does not change, but the port number changes all the time. Boss, may I ask why this is? ...
I know that spring form can be used to bind form elements to pojo. As follows <%@ taglib uri="http: www.springframework.org tags form" prefix="form" %> <%@ page language="java" contentType="text html; charse...
can data be transferred between Application in SpringCloud through WebSocket scenario is a service responsible for distributing image data (20m per second, which may be larger later) now other services also need this image data, so register it throu...
for example: what means did spring use to make the annotation @ SpringBootApplication also have @SpringBootConfiguration @EnableAutoConfiguration @ComponentScan the functions of these three annotations. ...
Please talk about both frameworks. ...
I call the methods of the two Dao layers in the Service layer. One method is used to store a row of Investor data, and one method is used to store Address data with an Investor primary key. The service layer method is as follows. Note that Investor inhe...
problem description the platform version of the problem and what methods you have tried related codes Please paste the code text below (do not replace the code with pictures) what result do you expect? What is the error message actually seen...
after SpringBoot is packaged and uploaded to the server, uploading files that exceed 500KB under the HTTPS protocol will cause Request to fail to find the uploaded file, and everything will be fine if it is in HTTP mode. there are two ways in which th...
Baidu says it can be judged manually by req.getURI, but I don t want to. I don t think it s elegant. Configuration @WebFilter(filterName = "myFilter", urlPatterns = " *") public class MyFilter implements Filter { @Override ...
there are two record: entries as follows query condition is type=gz--> detai is a List, there is an obj, query condition in this obj, and this filed is a List, depending on whether the value in it conforms to . query the entire document of all type ...
there are two classes. There are methods in parent class A, funA, subclass B, and method funB, aspect configuration class B is configured for all methods in subclass B. now it is effective to call the methods in B, but using B to call the method funA, in...
problem description I wrote a small page project with a lot of plug-ins and frames , and then I wrote a simple database, received the data through springboot and returned to the page I wanted to know how to put the front-end project into springboot a...
failed to start the springboot project. The error is as follows checked the online materials and said that it was due to the addition of database-related components but no configuration of database connection and other information. However, when my ...
jpa uses findby query. If the parameter is empty, it is not used as a condition. What can I do? this function is similar to where < if test= xx! = null > column = xx < if > of mybatis. for example, I have a findByNameAndAge (String name,Integer...
now the condition is that a List, such as type [ "sh ", "th "] is not the full value in the database type, but only has a prefix . according to this query, the following database shows that type contains sh and th prefixes, and the whole document...
use two annotations on one method, and use two different sections to deal with the values in the two annotations respectively. The join point method is as follows: @CacheFetch(cacheName = CacheManager.CACHE_DATASOURCE_INFO) @TenantAware(method = Operat...
problem background: use in microservices; enable a separate quartz module and use quartz for scheduled tasks; other modules register job tasks with quartz, and execute them by quartz modules; problem: when the quartz module dies, restart the quartz m...
@RestController @RequestMapping(" antdUpload") public class AntdUpload { private Logger logger = LoggerFactory.getLogger(AntdUpload.class); @RequestMapping(method = RequestMethod.PUT) public void postExcel(@RequestParam("file...
spring officially recommends using thymeleaf instead of jsp,. I try to use it in new projects. It s just a html suffix file, which is really cool. I asked the front end to write the page and import it into the project myself. The work is not as good as...
function check() { js var text = document.getElementById("xh").value; id if (text == "") { alert(""); return false; false } if (!( (^[1-9] d*$) .test(text))) { ...