Java 归档 - Page 502 of 655

Java – how to identify whether a string contains special characters that cannot be stored using utf8-mb4 character sets

Please refer to this tweet and the thread below. We are trying to store similar tweets to the database I can't store t……

Java

2019-07-10

Java – use huge memory in notifications

I am developing a service application that displays the progress of the timer in the notification area (with progress ……

Java

2019-07-10

What is the difference between const and volatile pointers?

What is the difference between const and volatile pointers? Solution The difference really comes down to the differenc……

Java

2019-07-10

Java – optimistic cache concurrent design pattern

I have a web service running on a set of servers The network service performs some internal processing, and then you c……

Java

2019-07-10

Java – relative to the current date in the Dbunit dataset

I wonder if there is any way to specify, for example, tomorrow as the date in the Dbunit XML dataset Sometimes the cod……

Java

2019-07-10

Java – how to convert jsonobject to gson JsonObject？

I have an org json. Jsonobject object Create gson. From What is the simplest method of jsonobject object? thank you So……

Java

2019-07-10

How to set the default file name of swing Jfilechooser?

I want to set the default file name to untitled. In this Jfilechooser text box txt. Can I set it? Solution Use the fol……

Java

2019-07-10

Java – unit testing using Apache Mina as an emulated / in memory SFTP server

I'm working on how to use Apache Mina Their documents are a little inadequate for my powerless brain I've seen useful ……

Java

2019-07-10

Code snippet for creating a file from the contents of a blob in Java

I have some files stored in the blob column of the database in Oracle 9 I want to store those files in the file system……

Java

2019-07-10

Java: datainputstream replaced with byte order

The following is my code to replace datainputstream to wrap an InputStream, but in addition to the common method of re……

Java

2019-07-10

Java – hibernate criteria: different entities and then restrictions

I have a standard to return all the data required by the application, basically: Criteria criteria = session.createCri……

Java

2019-07-10

Converting Java applications to Mac OS X applications

Is there a way to convert Java applications to Mac OS X executable applications? I use NetBeans to develop java, and I……

Java

2019-07-10

Populate check boxes in JSP pages with data from JavaBeans

I have a JSP page with check boxes in the HTML form, as shown below Now, when editing user skills, I want to get comma……

Java

2019-07-10

“Synchronized (this)” vs. “synchronized ((baseClass) this)” in Java

Is this variable being safely accessed by using synchronization? Heirs of For the following procedures, Class SubClass……

Java

2019-07-10

Java – spring: file upload restful Web Service

I am using spring 4.0 to create a PoC for restful web services @RequestMapping(value="/getcontent/file",method=Request……

Java

2019-07-10

Java – how to understand Maven dependency tree

Please forgive me if this is a dump problem, but I searched a lot and didn't understand how to actually read Maven dep……

Java

2019-07-10

Java – use GlassFish / Metro to simulate the problem of WCF secure web server

I'm trying to build a GlassFish hosted web service (for development and testing) and a WCF hosted web service I have t……

Java

2019-07-09

Java string pool and type conversion

My problem is the way Java handles strings It is clear from the Java language specification (JLS) that string literals……

Java

2019-07-09

Java – even with wrapper classes, swingworker exceptions are lost

I have been trying to solve the usability problem of swingworker. It will throw any exception in the background task, ……

Java

2019-07-09

Packaged Java applications run faster in Windows XP compatibility mode

According to some of my customers, Java applications run faster in Windows XP compatibility mode of Windows 7, but why……

Java

2019-07-09

Java – BlackBerry browser return Click

After loading the browser, I want to go back to the previous page, but it takes three clicks I tried to override the b……

Java

2019-07-09

Java – how to implement batch processing using mybatis / spring?

I want to know how to use mybatis 3& amp; Spring 3? For example, this is what is being done now: spring. xml： <……

Java

2019-07-09

Java – AbstractFactory and bridge mode

I just learned bridge pattern and its intention: remove an abstraction from the implementation so that the two can cha……

Java

2019-07-09

Java – migrate to Tomcat 8: instancealreadyexistsexception data source

I have a question about the context configuration in Tomcat 8 I migrated the project from Tomcat 7 to Tomcat 8, and th……

Java

2019-07-09

Java – nullpointer exception in LinkedList when using for each loop

I encountered very strange Java behavior. I don't know whether it is a bug or not The code simply passes through the s……

Java

2019-07-09

Create a unique timestamp in Java

I need to create a timestamp (in milliseconds) in Java that is guaranteed to be unique in this particular VM instance ……

Java

2019-07-09

Java – if called in the synchronization method, thread. Will yield() lose the lock of the object?

I understand thread currentThread(). Yield () is a notification thread scheduler that can assign CPU loops to other th……

Java

2019-07-09

Java – hibernate validator, custom resourcebundlelocator and spring

I tried to override the default resourcebundlelocator in Hibernate authentication 4.1 So far, it works perfectly, but ……

Java

2019-07-09

Java – why does the attribute change listener instead of observable

I had problems with class design until I found observability (using the observer design pattern) and created a small a……

Java

2019-07-09

Java – how do I subclass ByteBuffer?

Therefore, the Java NiO architect does not create a ByteBuffer interface, but a ByteBuffer class. It is not a final cl……

Java

2019-07-09

Java – why does the following code compile without errors?

I am new to Java and try to understand the following The length of the array is different The code still executes with……

Java

2019-07-09

Java error when combining Lambdas and multiple catch clauses?

import java.io.*; import java.io.*; import java.net.*; public class Test { ……

Java

2019-07-09

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Java – how to identify whether a string contains special characters that cannot be stored using utf8-mb4 character sets

Java – use huge memory in notifications

What is the difference between const and volatile pointers?

Java – optimistic cache concurrent design pattern

Java – relative to the current date in the Dbunit dataset

Java – how to convert jsonobject to gson JsonObject？

How to set the default file name of swing Jfilechooser?

Java – unit testing using Apache Mina as an emulated / in memory SFTP server

Code snippet for creating a file from the contents of a blob in Java

Java: datainputstream replaced with byte order

Java – hibernate criteria: different entities and then restrictions

Converting Java applications to Mac OS X applications

Populate check boxes in JSP pages with data from JavaBeans

“Synchronized (this)” vs. “synchronized ((baseClass) this)” in Java

Java – spring: file upload restful Web Service

Java – how to understand Maven dependency tree

Java – use GlassFish / Metro to simulate the problem of WCF secure web server

Java string pool and type conversion

Java – even with wrapper classes, swingworker exceptions are lost

Packaged Java applications run faster in Windows XP compatibility mode

Java – BlackBerry browser return Click

Java – how to implement batch processing using mybatis / spring?

Java – AbstractFactory and bridge mode

Java – migrate to Tomcat 8: instancealreadyexistsexception data source

Java – nullpointer exception in LinkedList when using for each loop

Create a unique timestamp in Java

Java – if called in the synchronization method, thread. Will yield() lose the lock of the object?

Java – hibernate validator, custom resourcebundlelocator and spring

Java – why does the attribute change listener instead of observable

Java – how do I subclass ByteBuffer?

Java – why does the following code compile without errors?

Java error when combining Lambdas and multiple catch clauses?

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