包含标签：Java 的文章
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Java – ehcache data view via JMX
Is there any way to view the data / objects stored in ehcache through JMX? I found that it's just cache statistics, bu…… -
Java – JDBC select is very slow compared to Firefox DB manager
Solved, of course, after the release, it hit me... Now use it http://www.xerial.org/trac/Xerial/wiki/SQLiteJDBC#Downlo…… -
Playframework – POJO, JPA binding and check box
Play uses "unresolved parameters are safely ignored. Type mismatches are also safely ignored." When binding parameters…… -
Java – what is the reason why spring STS hangs?
Sometimes STS hangs at first Is it possible to find the reason? Could there be logs or could it be started in debug mo…… -
Java – call peer to peer audio on Android: Voice Interruption and lag (delay in receiving data packets) increase
I'm trying to build a peer to peer audio call on Android I use my Android phone to communicate with my tablet, but aft…… -
How to insert a record using the entity manager without defining a primary key field?
I tried to insert records into the database (MySQL) using entity classes and entity manager However, one of the fields…… -
Java – multi row JTable unit with automatic height – very large first row
I am using swing to develop a java desktop application (JDK1.6) My question is about multiline cells (text wrapping) i…… -
CSV to PDF file in Java
I tried to parse a CSV file into PDF What I have attached so far is as follows My problem is that the file where the c…… -
Socket communication between server applications and MATLAB clients using java
I have a written C server application that I hope can be controlled from MATLAB So far, I have used the mex function f…… -
Java – Android starts the calendar with start and end times
I have an application that contains an agenda with a list of times and dates When the user clicks one of the events, t…… -
Extending the embeddable class in JPA
I extended an embeddable class ABC from another embeddable class XYZ The object of ABC is embedded in an entity The ta…… -
From Java to Facebook friend’s wall
Using a person's access token, I can get the person's friend's Facebook ID Can someone please give me an example of a …… -
How do I suppress primitive type warnings in the generated canonical metadata class?
I am using hibernate JPA 2 metamodel generator to generate metamodel classes for my @ entity model class, so I can que…… -
Java – cannot add the same panel again
It drives me crazy When you click three different buttons, I'm trying to change the panel, but it applies to one panel…… -
What concurrency warnings should I get from findbugs?
I have the following code: import net.jcip.annotations.GuardedBy; import net.jcip.annotations.ThreadSafe; @ThreadSafe…… -
Java – is there a tool to replace the passed Excel files back and forth and merge them?
Some legacy software relies on downloading multiple Excel files, merging the contents, sending them back, making some …… -
Play 2.0 / Java – is there a way to complete validation after requesting data binding?
In play 2.0, you can obtain the request binding and complete the verification (via comments) in the following ways: AB…… -
Hibernate Ge method: set the condition greater than or equal to
ge(String propertyName,Object value) Example Criteria criteria = session.createCriteria(UserForm.class); //创建Crit…… -
Does java have multidimensional arrays?
type[][] arrName; arrName = new type[length][] public class TwoDimensionTest { public static void main(String[]…… -
Struts2 ActionContext. getContext(). Get (object key) method: get the request of map type
public Object get(Object key) Map request = ActionContex.getContext.get("request"); @H_404_7@ 说明：ActionContext …… -
Detailed explanation of Java break statement
Terminate a sequence of statements in a switch statement Use the break statement to forcibly exit the loop directly Ex…… -
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JSP JSTL < C: out > tag: output tag
grammar Syntax format 1: Syntax format 2: defalultValue Example <%@taglib prefix="c" uri="http://java.…… -
Hibernate cache. region_ Prefix attribute: sets the prefix name of the L2 cache
hibernate. cache. region_ Prefix = attribute value Example <property name="hibernate.cache.region_prefix"> …… -
Java calculates (judges) constellations based on the date of birth
白羊：0321~0420 天秤：0924~1023 金牛：0421~0521 天蝎：1024~1122 双子：0522~0621 射手：1…… -
Hibernate cache. provider_ Class attribute: sets the full name of the L2 cache implementation class
hibernate. cache. provider_ Class = attribute value Example <property name="hibernate.cache.provider_class"> …… -
Hibernate close method: close the session object
close() Example Session session = sessionFactory.openSession(); //创建Session对象 if(session.isopen()){ //如果ses…… -
Hibernate opensession method: open a session
Grammar 1 openSession() Example SessionFactory sessionFactory = config.buildSessionFactory(); Session session = ses…… -
Hibernate configuration properties
<?xml version='1.0'encoding='UTF-8'?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Co…… -
Java instance guessing numbers games
count=0 way=0 public class BullCows { /** * 负责调用对应的方法，实现整个案例的逻辑关系 * * @p…… -
Encryption and decryption of Java strings
public static String encryptAndDencrypt(String value,char secret) { byte[] bt = value.getBytes(); // 将需要加密…… -
Nine palace grid memory network of Java project practice
Development background requirement analysis System objectives Functional structure System flow development environment……