Recent questions tagged java

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java - Spring RestTemplate and Proxy Auth

I'm trying to do REST calls with Spring. As I understand, the right way to go is using RestTemplate(?). Problem is ... , I'm getting just 407... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring Security Sessions without cookies

I'm trying to manage sessions in Spring Security without leveraging cookies. The reasoning is - our application ... the right direction here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java opts - how to set JAVA_OPTS for Tomcat in Windows?

I'm trying to set JAVA_OPTS for Tomcat on a Windows machine, but I keep getting an error if I add more than one ... and my Tomcat is 7.0.35. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android: Constant memory consumption / dumpGfxInfo()

Given: A simple Activity created with the Android Studio Wizard, without any custom code inside, consumes perpetually memory ... get rid of it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to POST Data into website using Jsoup

I am trying to POST data into website to make a login into the site using Jsoup , but its not working ? I ... highly appreciated !! Thanks.... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Redirect process output to stdout

I would like to execute foo.bat from within a Groovy program and have the resulting process' output redirected to ... all the output at once. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - clickable links in JOptionPane

I'm using a JOptionPane to display some product information and need to add some links to web pages. I've ... .showMessageDialog(null, ep); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Jackson deserializer - change null collection to empty one

I have an entity that contains collection as attribute: public class Entity { @JsonProperty(value="homes") ... I write generic one? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Removing the CENTER element from a JPanel using BorderLayout

Is there any way of removing the Component added to the CENTER of a JPanel with a BorderLayout, without ... to reference the Component itself? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Is it possible to add JPA annotation to superclass instance variables?

I am creating entities that are the same for two different tables. In order do table mappings etc. different ... child classes? Thanks, Kris See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Jsoup select and iterate all elements

I will connect to a url through jsoup and get all the contents of it but the thing is if I select ... possible using jsoup? Thanks, Karthik See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Convert an org.w3c.dom.Node into a String

Sorry I'm a Java/XML newbie - and can't seem to figure this one out. It seems it's possible to convert ... this. Any help is much appreciated! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Can't install rJava on ubuntu system

I've seen a few posts related to this...but all the suggested solutions ive seen dont seem to work....I am ... not attached): [1] tools_2.15.1 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Oracle SqlDeveloper JDK path

I have recently installed sqldeveloper but i'm getting the below warning window when I try to launch it. ... Please suggest the correct way See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring restTemplate get raw json string

How can I get the raw json string from spring rest template? I have tried following code but it returns me ... = response.getBody().toString(); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android: Difference between getCount() and getChildCount() in ListView

What is difference between getCount() and getChildCount() in ListView? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to iterate over regex expression

Let's say I have the following String: name1=gil;name2=orit; I want to find all matches of name=value and make ... to do this with one regex? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Enforce not-null field in JSON object

Our REST API receives some JSON objects input where some fields are required to be not null. Those can be either ... ; } return request; } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Valid characters for Excel sheet names

In Java, we're using the following package to programmatically create excel documents: org.apache.poi.hssf If you ... all non-word characters. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to test Spring @Scheduled

How do I test @Scheduled job tasks in my spring-boot application? package com.myco.tasks; public class MyTask { ... / task execution logic } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to generate unique object id in mongodb

When I use Mongodb with Java, I want to generate Object id at clients. Before I insert a record, ... id without accessing mongodb twice? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Concurrent Set Queue

Maybe this is a silly question, but I cannot seem to find an obvious answer. I need a concurrent FIFO ... interwebs that exhibits this behavior? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - LocationRequest constructor is marked as internal

I'm trying to set up location updates in my Android app using com.google.android.gms:play-services-location:12.0.0 ... the proper way to do it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - ProcessBuilder gives a "No such file or directory" on Mac while Runtime().exec() works fine

I have an application, running on the Playframework, which needs to encode some video files. I used Process pr = ... java:453) ... 12 more See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I in JDBC read a possibly null double value from resultSet?

I have a column in my database that is typed double and I want to read the value from it using a JDBC ... restricted to JDBC code only here. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to display a number with always 2 decimal points using BigDecimal?

I am using BigDecimal to get some price values. Requirement is something like this, what ever the value we fetch ... be displayed as 0.00 Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Issue With Spring: There was an unexpected error (type=Not Found, status=404)

I am going through this book on restful web services with spring. I decided to move away from what they were ... 2] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-expose...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to set filename containing spaces in Content-Disposition header

I have this piece of code: resp.addHeader("Content-Disposition", "inline; filename=" + fileName); When the file ... . How can we solve this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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