java - An object is set in the session, but cannot be retrieved in Jsp

In the session {code...} and then get the {code...} in the jsp. I still can't get it, but I can get his toStri...

From [Javadiscussion group] 2017-06-23 09:14:28 0  4  1068

Java - Can milliseconds be removed from the displayed time?

The time in the database is the acquisition time of DateTime type {code...} Can it be removed? It’s so ugly.

From [Javadiscussion group] 2017-06-23 09:14:23 0  2  1043

Is it reasonable to block during Spring initialization?

After reading the code of NettyRPC, I found that Spring's InitializingBean is implemented in RpcServer. A Nett...

From [Javadiscussion group] 2017-06-23 09:14:20 0  3  959

java - Questions about queues under concurrent operations?

Commonly used rabbitmq and activeMq queues use multiple consumers or multiple threads to fetch data from the q...

From [Javadiscussion group] 2017-06-23 09:14:19 0  2  1124

jvm - Are Java new objects atomic?

{Code...} I would like to ask, there is complex object initialization logic in the xxx() method. Is the object...

From [Javadiscussion group] 2017-06-23 09:14:17 0  4  1346

java - JDK8 predicate function interface (Predicate) source code question?

There is an and() method in the function interface, the source code is as follows {code...} In addition, the t...

From [Javadiscussion group] 2017-06-23 09:14:14 0  4  1010

JAVA mybatis pojo.xml configuration problem

I just learned JAVA, and I wrote it based on the example, but it can’t run. The error message is: {code...} My...

From [Javadiscussion group] 2017-06-23 09:14:12 0  3  1000

Regarding the implementation issues of java collection LinkedList

{Code...} Last is a member variable. Why not use it directly in the method, but assign it to a final local var...

From [Javadiscussion group] 2017-06-23 09:14:09 0  2  993

java - Can volatile solve the problem of thread-shared data security?

For example, I want to write a singleton mode without using sycrynized synchronization method and use volatile...

From [Javadiscussion group] 2017-06-23 09:14:04 0  2  1048

java - ssh integration, jsp cannot find action

Tool idea Build maven version struts2.5+spring4.3.5+Hibernate5 Problem developed through annotations, action 4...

From [Javadiscussion group] 2017-06-23 09:14:02 0  1  1340

java - Should the service layer not write http-related operations?

Prerequisite: java, springmvc. I have a userService service class, which has two methods for operating the cur...

From [Javadiscussion group] 2017-06-23 09:14:01 0  3  1070

java - How to split a string of the form (operator arg1 arg2 ... argn)?

A function is in the form of (operator arg1 arg2 ... argn), which is the operation symbol, with parameter 1, p...

From [Javadiscussion group] 2017-06-23 09:13:59 0  2  1024

Error decoding url

Problem: The Chinese text sent by Android to the background server is decoded into garbled characters. . Envir...

From [Javadiscussion group] 2017-06-23 09:13:56 0  2  913

java - When SpringMVC integrates hibernate validator for parameter verification, why doesn't it throw an exception directly?

Hello everyone, I have a question: 1. Environment {code...} 2. The configuration is as follows {code...} 3. Be...

From [Javadiscussion group] 2017-06-23 09:13:55 0  2  984

java - Is there any good input method under win10 that can input normally under idea?

I used the bing input method, qq input method and the built-in input method, and the input box (Chinese status...

From [Javadiscussion group] 2017-06-23 09:13:52 0  2  1235