ext { springVersion = 4.3.10.RELEASE } compile( org.springframework:spring-context: , ) ...

there is a set collection of tag classes in the user class; maintain relationships only from the user class, one-to-many @ OneToMany @JoinTable(name="shuo_tag", inverseJoinColumns=@JoinColumn(name="tag_id"), jo...

want to learn distributed preparation for job-hopping. I don t know where to start. Will zookeeper+dubbo only learn these two frameworks and ask the boss to show me the way? thank you ...

before IDEA was updated, it was obviously adjusted not to delete the setting, but I don t know why the setting was restored. This is not the point. Today, the updated Javaweb project entered the project as it was after IDEA modified the code to open tom...

,,Spring mvc: <context:component-scan base-package="..." > @Controller,@RequestMapping. ,<context:component-scan base-package="" >Spring, Spring mvc,? ...

see the use of the PageHelper paging plug-in in a project ...

Java web generates files dynamically if it is in the webcontent directory through sevlet. for example, 1) need to dynamically create a.txt under webontent 2) write to the a.txt file. 3) read the a.txt file. ...

webapp project of maven, after running, it was found that there was a problem with forwarding in Servlet. index.jsp: <% response.sendRedirect(request.getContextPath() + " bookServlet?method=getBooks"); %> servlet: public class Bo...

uric:outJavaWeb,jstl1.2jarlib,.maven only those built with this selected one have these problems. I have also looked up some like https: stackoverflow.com que. like https: stackoverflow.com que. wow, I think it would be nice if it could be sol...

objects are transmitted in binary mode on the network. so for serialization, different serialization, the transferred object should be a binary stream. then why json and xml are also described as serialization. It is not very clear that both of them ha...

I want to look at the source code of HttpSession session = request.getSession (); and want to know how to get the of the current session....

normally, the validity time of the cookie should be the same as the destruction time of the session object. but if it is not the same, 1. The valid time for cookie is up, and the time for session destruction is not up. At this time, the jsessionid is ...

description trouble boss to point out how to reconstruct the operations of different objects with the same method? At the bottom of is the code. The save methods here are all the same operation. The object is used as a reference here. I just want...

Spring mvc two components: HandlerMapping and HandlerAdapter; HandlerMapping can already help us match the specific controller (Controller)? then why do you need HandlerAdapter?? ...

there is a problem: nginxsslhttpspostgetbodyparameter postgetpostget ...

1. I wanted to try spring mvc configuration without xml, but when I added @ EnableWebMvc to the java config class, the project failed to start. 2.HelloConfig: @Configuration @EnableWebMvc @ComponentScan public class HelloConfig implements WebMvcConf...

are these two methods called whenever an post request or a get request is encountered? then, if there are multiple requests in a web page, isn t it troublesome to call these two methods to solve ...

1. Files with suffixes jsp and html exist. When the suffix is set to jsp, access to the corresponding url can be accessed. When it is html, the access url cannot find resources. Why? I have guessed that it is because url-pattern is set to " ", but why...

problem description where should the Java thread pool be created? Or whether a thread pool is used for one business, multiple businesses, or the whole project ...

2018-5-14 10:58:50 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc : The web application [ SCM] registered the JBDC driver [com.alibaba.druid.mock.MockDriver] but failed to unregister it when the web application was stopped. To prevent a...