in the configuration java, you have to recompile every time you modify it. Isn"t it good to write the configuration file? Why are the configurations in the springboot project written in java, or are there other considerations?
in the configuration java, you have to recompile every time you modify it. Isn"t it good to write the configuration file? Why are the configurations in the springboot project written in java, or are there other considerations?
is flexible. Can I write java in xml? In xml, what do you want to do by determining the environment variable to change the configuration? If directly in java is fine. It is sometimes difficult to find that a class name or variable name is wrong in xml. In java, the compiler reports an error directly. What xml can do, java can do, what java can do, xml is far inferior. Xml makes it easy for people who can't write java to write configurations. If the person who maintains the configuration can java, himself, then xml has no advantage.
groovy DSL means dissatisfied. It not only has the powerful function of java code, but also does not need to be recompiled and executed dynamically. Brother dei, Grails really doesn't know anything about it?
build your own SSH or SSM framework based on XML configuration, and you will know that
"configuration" generally refers to "things that will be different in different environments"
, while xml usually expresses "configuration of bean", such as instantiating which bean, dependencies look like.
so, if the configuration of bean is different in different environments, it may be useful to extract xml (because profile is also available)
. Conversely, if the configuration of bean does not change due to changes in the environment, you do not need to extract the code, just write it into the code, and save the effort of maintaining xml
The Debug in permission list filterChainDefinitionMap is as follows: filterorg.apache.shiro.web.filter.AccessControlFilter: subject.isPermittedDebug: error message: java.lang.IllegalArgumentException: Wildcard string cannot be null or empty. M...
1. Use the springboot,maven project; logback is under resource, can I specify the location of the logback file at startup? Because I don t want to use the default file. similar:-Dserver.port=10080 can specify the same port, I think:-Dxxx.path=logback.x...
entity 1 inherits another entity 2. Entity 2 is a public entity with id,createDate and other common attributes, so entity 1 does not need to write these fields, but the table cannot be built, and an error is reported: Error starting ApplicationContext....
I used 1.x before, but I am not very proficient in transferring to java,1.x. Which is better to use for the new project? ...
has not been solved yet. I found a similar problem on https: stackoverflow.com que... on stackoverflow. I tried it myself and found that it could not filter the subresult set, but only parent. The filtered parent brought out all the sub-objects, . @En...
public JsonResult add(@RequestBody(required = false) User user){ if(user == null){ RequestBody ; ; } } ...