now the company has a requirement. When a project starts, it often reports an error because the database is not started, resulting in the project cannot be started. How to make the project start without caring whether MySQL is started or not? to put it s...
1.1: 3.4: ? : :; :3.2,APP ; ? ...
for example, I learned about the introduction to spring websocket through the following URL https: spring.io guides gs m. but guides only talks about broadcast websocket, but I want to know how to implement the peer-to-peer websocket function. Is th...
the original title was "springdata jpa uses @ ElementCollection to report an error " Table doesn t exists ". Later, I patiently read all the error messages and found that the source of the error was that the sql syntax generated by hibernate was inco...
I am a novice in database. Recently, when using spring-data-jpa, I encountered the problem that I could not design entity classes according to the Emurr model, so I asked a question. Emurr model is shown in the following figure: consider Company a...
the code snippet is as follows: if (this.context instanceof ConfigurableWebApplicationContext) { ConfigurableWebApplicationContext cwac = (ConfigurableWebApplicationContext)this.context; if (!cwac.isActive()) { if (cwac.getParent() == nu...
for example: what is the relationship and difference between MVC and web MVC, SpringMVC and Spring web MVC? ...
Spring s actual combat book is really piecemeal and piecemeal. or the common fault of master writing, some things for beginners do not know how to operate, but in the eyes of experts are all written as soon as the project is written, do not mention it...
After Spring receives the parameters from the front end, how does the front end parameters correspond to the parameters in the method? such as http: localhost:8080 hello?hello=hi&word=spring&end=! then spring can correspond to hello , world , en...
< H1 > as mentioned in the question, can SpringBoot only use declarative transactions? Or is it necessary to introduce xml configuration files? (. + `omega ) < H1 >...
How are placeholders in logback.xml replaced with real variable values? ...
has an entity class with two attributes, startNum and endNum. so how to verify that startNum must be less than endNum? by javavalidation ...
the database index is configured in application.properties, but it is useless. It has been added to db0 by default. What is the cause of this? ...
There is under c3p0config.properties. jdbcUrl = "jdbc:mysql: localhost:3306 myproject1_simplesite" driverClass = "com.mysql.jdbc.Driver" user = "root" password = "root" use javaconfig to configure Dao explicitl...
does the entity originally shared by each module in the micro-service system need to be extracted and put into the shared dependency management? if not extracted, you need each module to define its own Bean that feels a lot of repetition, but you can le...
redis: database: 4 host: localhost password: port: 6379 jedis: pool: max-idle: 8 min-idle: 0 max-active: 200 max-wait: { seconds: 10, nanos:0 } timeout: { seconds...
when using spring security oauth2 for single sign-on, how can I be redirected back to the client after a successful login? the default configuration redirection path does not take effect. ...
A personal blog-like website developed using javaweb, the home page needs to load a lot of things, such as articles, mood quotes similar to Weibo, latest comments, announcements, and broadcast pictures. I originally wanted to use freemarker, but I found ...
when using the template engine to develop web applications, the css or js used will be downloaded in advance and placed in the project s fixed directory, such as bootstrap and jQuery, and so on. There are usually a lot of such documents. Whether there i...
1. Background: mysql transaction isolation level for READ_COMMITTED; data saving using native hibernate; queries using JdpcTempLate; 2. Main question: hibernateJDBCNot_suppport;; 3. Code: 3.1.hibernate: 3.2.JDBC 3.3Jdbcjdbc reasons for asking ...
Hello prawns! logstash: 100.97.73.229-- [19 Feb 2019:17:43:11 + 0800] "GET news-spread_index-138.html HTTP 1.1 " 7920 "- " Mozilla 5.0 (Linux; Android 8.1; MI 6X Build OPM1.171019.011; wv) AppleWebKit 537.36 (KHTML, like Gecko) Version 4.0...
[self.scrollView lockFocus]; NSImage image = [[NSImage alloc] initWithData: [(NSView ) self.scrollView.documentView dataWithPDFInsideRect:bounds]]; [self.scrollView unlockFocus]; if the scrolling view is in the same application, it can be achieve...
find a react Calendar plugin, ...
stackoverflow found the processing of logging but copying the original code will prompt QObject::connect: Cannot queue arguments of type QTextBlock (Make sure QTextBlock is registered using qRegisterMetaType().) QObject::connect: Cannot que...
when I worked on Mini Program project for the first time, I have been stepping on it all the time. Through value= "{{json.content}} " and {{data.json.content}} in the textarea tag, I can t render it in either way <textarea class= fs14 value=&qu...