Recent questions tagged java

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java - jackson deserialize object with list of spring's interface

I need to save and load objects from redis. The object contains list of GrantedAuthority (among other things) which is ... ); and still no luck. 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 ensure replaceAll will replace a whole word and not a subString

I have an input of dictionary. The dictionary is iterated over to replace the key from dictionary in the text. But ... ", entry.getValue()); } 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 dynamically set header value in JSP

I have a JSP file which creates an Excel document. I want to dynamically set the name of the file to be downloaded ... .e. test-20100805.xsl ) ? 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 - Reading Web Application Resources

Background Developing a simple web application (Eclipse + JBoss + Apache Tomcat) to generate XML files. ... FileDirContext.html 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 - Specify message converters for single Spring Controller

I'm writing a postback handler library for a service that has some odd JSON mapping practices. I can very ... or mapping string/template/prefix? 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 - Missing Elements in HTTP Request - Null or Empty?

I have a HTTP Request javax.servlet.http.HttpServletRequest that is passing in a value to be used in some code ... is present, and vice versa. 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 causes "Can't find Symbol" and how to fix it?

I've been trying to figure this out, I've run it in different programs so it's definitely in the code. Probably ... ; } } // end of class 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 protect decryption key from decompilation?

I'm a beginner java programmer. I'm working on an application that decrypts some data. The decryption key ... Thanks for all your 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 - How to disable column-reordering in a JavaFX2 TableView?

JavaFX2's TableView features "Column reordering by the user at runtime". I'd like to disable this feature ... least revert it programatically? 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 - Swing Thread Safe Programming

public static void main(String args[]) { /* Set the Nimbus look and feel */ //<editor-fold defaultstate ... .invokeLater - are they same? 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 - Build multi-platform executable for a SWT application using maven

My question is: How can I generate multiple executable Jar files (incl. dependencies) for a SWT application ... these are enough information. 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 can I change the namespace on every node in a DOM?

How can I, given a w3c DOM (Java's default implementation, specifically) change the namespace of every element ... and change its namespace. 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 - Maven project cannot locate dependencies in local repository

I have a maven project setup. In my maven POM file, it is defined as below: <?xml version="1.0" ... ReasonPhrase:Forbidden. -> [Help 1] 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 get Windows file details?

I want to get the "File description" and the "Copyright" of exe/dll/sys files, as showed in the "Details ... the file and choose the properties. 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 do I set maximal jvm-memory (XMX) for a jar-file

How do I set the maximal jvm-memory without adding an extra batch-script to my Programm. Answer is provided below. 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 regex matching ip address and port number as captured groups

could please anybody tell me what is wrong with this regexp ? ((?:(?:25[0-5]|2[0-4][0-9]|[01]?[0 ... .1 and 8080 to be captured groups 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 - JAXB location in file for unmarshalled objects

I have some objects being unmarshalled from an XML file by JAXB. Is it possible to have JAXB tell me ... available for validated objects too. 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 - Using Thread with Vaadin?

I'm trying to use Thread in my project to send emails. When I click on a Button, a Thread is ... the ProgressBar from a separated Thread? 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 - org.openqa.selenium.interactions.MoveTargetOutOfBoundsException: (x, y) is out of bounds while MouseHover with GeckoDriver Firefox Selenium

I am learning how to automate tests with Selenium WebDriver, however I got stuck and cannot make dropdown menu to work ... v0.24.0 Please 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 - ArrayList <Integer> with the get/remove method

when I use ArrayList in Java, there are some things that I do not understand. Here is my initialization ... SparseIntArray but I am curiously 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-boot with spring-ws -SOAP Endpoint not accessable

I am playing around with spring-boot and i run into a problem. To create RESTful webservices is quite easy. But i am ... --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overri...

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

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java - Reading lines from an InputStream without buffering

Does Java have a simple method to read a line from an InputStream without buffering? BufferedReader is not suitable ... just gets in the way. 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 open a installed android app with a button click intent?

Hi i'm working on a android launcher for education and I need it to be able to when the user clicks ... Thanks way in advance Regards Rapsong11 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 does Double.toString() work if a fraction number cannot be precisely represented in binary?

I am unable to understand how Double.toString() works in Java/JVM. My understanding is ... : 206.6399999999999863575794734060764312744140625 } 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 equivalent of the retired mvn eclipse:eclipse in m2e?

The Apache Maven Eclipse Plugin is retired. What is the equivalent command line or in Eclipse UI for: mvn eclipse ... a Java project in Eclipse? 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 - Convert JSON date format

I'm receiving a JSON object with date value like this: {"PostingDate":"/Date(1325134800000-0500)/"} And I want to ... the easy way of doing it. See Question&Answers more detail:os...

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

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418 views

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java - Count the occurrences of items in ArrayList

I have a java.util.ArrayList<Item> and an Item object. Now, I want to obtain the number of times the Item ... of only first Item every time? See Question&Answers more detail:os...

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

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383 views

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java - How to Properly Close Raw RestClient When Using Elastic Search 5.5.0 for Optimal Performance?

Am using a Spring Boot 1.5.4.RELEASE Microservice to connect to an ElasticSearch 5.5.0 instance using the low level ... the time to read 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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