Recent questions tagged java

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java - What does & 0xff do And MD5 Structure?

import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class JavaMD5 { public static void ... new in java. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Access gmail using imap with accountmanager token

I'm trying to implement a IMAP gmail client using the token received from the Android's AccountManager instead of ... the problem, Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android Bluetooth Serial RFCOMM low baud rate / slow transmission

I'm working on an Android Bluetooth project to send and receive data from a custom made hardware. I used ... 5Mbps. I appreciate any suggestions See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android encryption "pad block corrupted" exception

In this code, this line is causing an exception: clearText = c.doFinal(Base64.decode(encryptedText, Base64.DEFAULT)) ... on the android as well See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Store @PathParam values from REST call in a list or array

My function looks like this: @PUT @Path("property/{uuid}/{key}/{value}") @Produces("application/xml") public ... @PathParam("key3") String key3, See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Interrupt/stop thread with socket I/O blocking operation

At some point of my server application I want to stop some threads that are performing I/O blocking operations ... would be very appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Ehcache disk store unclean shutdown

I'm using a cache with disk store persistence. On subsequent reruns of the app I'm getting the following error: net.sf ... .get("key1")); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - spring mvc servlet initialization

I am new to spring MVC. I am looking for a place in my spring mvc applicationwhere I can initialize all sorts ... is the best practice? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Ternary (and n-ary) relationships in Hibernate

Q 1) How can we model a ternary relationship using Hibernate? For example, how can we model the ternary ... with Hibernate? Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Deriving a secret from a master key using JCE/JCA

Can some point me in the right direction? I'd like to use JCE/JCA to derive a new key from a master secret key, How can I achieve this? Regards. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Wicket Dynamic Image URL

Short question: I need to turn a dynamic image pulled from a database into a URL without adding a component to ... a response stream. Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - CXF 2.7.x Woodstox Compatibility via Maven

In the CXF's documentation it is said that the 2.7.x version requires the Woodstox jars not under the 4.2.0 ... to go... Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JSR-356 WebSockets with Tomcat - How to limit connections within single IP address?

I made a JSR-356 @ServerEndpoint in which I want to limit alive connections from single IP address, to ... external software like iptables? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Create pkcs7 signature from file digest

Currently i have a client-server application that, given a PDF file, signs it (with the server certificate), ... signed". Can anyone help? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Combining XFA with PDFBox

I would like to fill a PDF form with the PDFBox java library. The PDF form is created with Adobe Live ... best alternatives to achieve this ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - what is the exact way to use Endorsed directory in jdk1.6

I want to upgrade my jaxws to 2.2 (jdk1.6 comes bundled with jaxws 2.1). My jdk is (I did not install ... hints about what I am seeing I think See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Sorting String with non-western characters

I wanted to print sorted Polish names of all available languages. import java.util.*; public class Tmp { ... with another sorting rules). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Parse JSON data using JSONReader or JSONObject/JSONArray

I have some JSON (shown below), I am trying to parse through the entire JSON, and each object will be a new instance of ... false } ] } ] } ] } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Generating RSA keys for given modulus and exponent

I have been asked to generate the RSA key using given modulus and exponent values. But I have idea only about ... be at least 512 bits long See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Selenium grid with Chrome driver (WebDriverException: The path to the driver executable must be set by the webdriver.chrome.driver system property)

I am trying to get my Selenium Grid running on Chrome driver. At first I started hub and node: java -jar selenium ... What is wrong in my code? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Struts 2: parameters between Actions

I have the following question: I need to pass a parameter (for example ID ) when I finish a form and ... appreciate your help Thanks in advance See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - 2D Array grid on drawing canvas

I am writing an pixel art app that paints images the user draws on the screen to pixel look. There are two ... creates a bitmap at each cell? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Clearing doubts about the builder pattern

I am learning about the builder pattern, and so far I understood that, it is a great alternative to the commonly patterns ... (12).build()); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Images not being cached locally (using Universal Image Loader) - slow image load times

Description of the problem: I'm creating a scrollable list of articles with thumbnails that's populated by my ... .news -cache -uil-images See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Are Interceptors in Struts2 Thread UNsafe?

I understand that Struts2 Action classes are thread-safe, because the actions are put in the Value Stack. The ... interceptor is thread safe)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android: Mixing multiple AudioTrack instances?

I need to run two instances of AudioTrack at the same time. They must run separately because I'm playing ... them at different sample rates. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to stream data to database BLOB using Hibernate (no in-memory storing in byte[])

I'm looking for a way to stream binary data to/from database. If possible, i'd like it to be done with ... Thank you very much for your help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Multithreading in a stateless session bean?

The EJB 3.0 specification does not allow a business method of a stateless session bean to create new threads ... Can still something bad happen? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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