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Java - Select one of the three dao data to be mapped to a url according to the request parameters. How to write it better?

The data of the three daos should be mapped to a URL, and the request parameters are used to indicate which da...

From [Javadiscussion group] 2017-05-17 10:09:03 0  1  843

java - As shown in the figure, how is the action in the form of the jsp page mapped to this position? Why can it be mapped to save without writing dynUser?

Shouldn’t it be written like this? action="dynUsse/save"

From [Javadiscussion group] 2017-05-17 10:09:00 0  2  826

java - Where does this model come from? Is this return a request forwarding?

(www.sf.gg) is China's leading developer technology community. We hope to provide a pure, high-quality technic...

From [Javadiscussion group] 2017-05-17 10:08:55 0  1  596

java - issues related to springMVC automatic assembly.

I want to assemble multiple Daos at the same time. {Code...} is written like this now. Can I use @Autowired on...

From [Javadiscussion group] 2017-05-17 10:08:53 0  3  721

<scope>test</scope> causes error when Mavn executes test

When learning maven test, when executing mvn test, org.junit will not be found. {code...} has been introduced ...

From [Javadiscussion group] 2017-05-17 10:08:51 0  1  1075

mysql - java ResultSetMetaData gets Chinese alias garbled

The code is as follows: 2. If the alias is Chinese resultSetMetaData.getColumnName(i+1), the data obtained by ...

From [Javadiscussion group] 2017-05-17 10:08:49 0  1  744

java - When dealing with data relationships, what are the advantages and disadvantages of using database table foreign keys versus in-code maintenance?

Recently, I was designing a library table for an enterprise application project. I encountered some data assoc...

From [Javadiscussion group] 2017-05-17 10:08:48 0  2  645

What exactly is the difference between synchronous/asynchronous and blocking/non-blocking?

As far as I understand, synchronization/blocking are the same concept. The client is waiting for a receipt fro...

From [Javadiscussion group] 2017-05-17 10:08:42 0  4  1071

java - What are the mainstream technologies used in website search and recommendation functions?

What mainstream technologies are used in the search and recommendation functions of the website? Elasticsearch...

From [Javadiscussion group] 2017-05-17 10:08:40 0  1  712

list - java code optimization

The current version can run, but the writing is definitely not good. {Code...} The key is the initialization o...

From [Javadiscussion group] 2017-05-17 10:08:39 0  2  753

java - bean collection split into multiple lists

Now there is a bean list that needs to be split into lists of multiple members. How to write it better? {code....

From [Javadiscussion group] 2017-05-17 10:08:35 0  2  931

java - jsp characters can be automatically filled in to user, but not to author. Why?

Some fields in user and author are the same. Why can't it be automatically filled in to author when submitted ...

From [Javadiscussion group] 2017-05-17 10:08:34 0  3  587

Java uses the simplest if to determine whether the date is early or late

The date consists of three int data, namely year, month, day. You cannot use any function, just use the simple...

From [Javadiscussion group] 2017-05-17 10:08:33 0  2  811

java - Tomcat can be hot deployed, why does it still prompt hot code replace failed?

(www.sf.gg) is China's leading developer technology community. We hope to provide a pure, high-quality technic...

From [Javadiscussion group] 2017-05-17 10:08:31 0  3  824

javascript - Regular match multiple values ??and return the specified group

{Code...} The source data is in the format above. I want to match the data in objURL and fromPageTitle. The re...

From [Javadiscussion group] 2017-05-17 10:08:30 0  3  812