Recent questions tagged Java

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java - Guide to proper escaping in Play framework

I'm trying to map out how the Play framework supports escaping. This is a nice page spelling out the needed ... I'm missing what's included. 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 - Servlet mapping: url-pattern for URLs with trailing slash

I have a problem related to the servlet mapping. I have the following in web.xml: <servlet> <servlet-name> ... put a pattern ended with /. 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 - Threadsafety in Javamail

I'm researching whether Javamail is threadsafe, in particular in a situation with many sessions corresponding to ... has such experience. 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 are valid return types of a Spring MVC controller method?

I have not much experience in Spring MVC and I have the following about what are the valids return types ... some different kind of objects? 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 remove EGIT from Eclipse Kepler?

I'm using the J2EE bundle of Eclipse Kepler, and I'm working with Git. I'm also using git-extension as ... permanently remove it from eclispe ? 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 easily fix Checkstyle errors?

Is there a way to have an IDE fix Checkstyle errors automatically without having to fix each manually? 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 - httpClient.getConnectionManager() is deprecated - what should be used instead?

I have inherited the code import org.apache.http.client.HttpClient; ... HttpClient httpclient = ... non-Deprecated method? 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 a HashMap value with three values

If I have a HashMap with a such key: [pubDate, title, link] and such value(example): [Thu, 03 Jan 2013 ... to ArrayList menuItems.add(map); } 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 - Recyclerview - Overlap items bottom to top

I have set the negative margin for items like this:- ItemDecoration.java public class ItemDecorator extends ... Current View Required View 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 - Alternative to successive String.replace

I want to replace some strings in a String input : string=string.replace("<h1>","<big><big><big><b>") ... reduce the complexity of this 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 - what causes "constant expression required" errors for the generated R.id.xxx values in switch statements?

We've got a multi-project app that we're moving to gradle. The build results in Java compilation errors like: ... : 'android' fixed the problem. 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 - .Contains() method not calling Overridden equals method

I am having an issue where I make an ArrayList of Foo objects, I override the equals method, and I cannot get ... } } OUTPUT: false false 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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531 views

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java - Can't find javax.ws.rs package in jdk

I'm trying to get into JAX-RS. My project jdk is set to 1.7.03. Does there have to be definitions of ... If not, where I can find them? 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 - Abstract Class:-Real Time Example

Recently in a interview I was asked a very general question "what is abstract in java".I gave the definition ... her project and why? 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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298 views

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java - Commons CLI required groups

I am writing command line application in Java and I've chosen Apache Commons CLI to parse input arguments. Let' ... ) throw new XXXException()). See Question&Answers more detail:os...

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

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299 views

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java - How to limit number of deployed snapshots artifacts in Nexus?

We are using Nexus to deploy our snapshot artifacts. Our build server deploys them during each build using the ... for your help, Michael See Question&Answers more detail:os...

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

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1.2k views

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java - upload file springboot Required request part 'file' is not present

I want to add an upload function to my spring boot application; this is my upload Rest Controller package org.sid. ... 'file' is not present, See Question&Answers more detail:os...

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

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137 views

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java - How to create my own filter with Spring MVC?

I use Spring MVC (4.0.1) as a backend for rest services and angularjs as frontend. every request to my server ... Filter[] {MyOwnFilter}; } } See Question&Answers more detail:os...

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

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185 views

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java - Spring use one application.properties for production and another for debug

I have a Spring application and I would like to be able to switch between configurations depending if I'm debugging ... between the two of them? 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 - Which subversive connector discovery to use

After I installed the SVN plugin in Eclipse and restarted it, a message appeared asking to install a connector. ... any one please guide me. See Question&Answers more detail:os...

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

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230 views

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java - Renaming packages in Eclipse

In Eclipse's "Package Explorer", let's say I have a list of packages like this: com.dog com.cat com. ... am not given the rename capability. See Question&Answers more detail:os...

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

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250 views

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java - Do I need both JDK and JRE?

I used to have JRE 7 before, and now I installed JDK 8 and deleted my JRE 7 folder. I'm using Eclipse ... computer? Will it cause any problems? See Question&Answers more detail:os...

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

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204 views

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java - Why don't primitive Stream have collect(Collector)?

I'm writing a library for novice programmers so I'm trying to keep the API as clean as possible. One ... working with IntStream or LongStream ? See Question&Answers more detail:os...

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

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152 views

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java - Which Maven GlassFish plugin to use?

I've been trying to integrate deploying java .war's in GlassFish V3 through Maven. While I have found a few plugins ... you use to get it done? See Question&Answers more detail:os...

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

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244 views

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java - Including images in javadocs

I work with a lot of sample test cases that are visual. Is there any convenient way to include them in my ... my test sources in this case) See Question&Answers more detail:os...

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

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410 views

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java - Unsupported major.minor version 51.0 but everything is set to JDK 1.6

I have a Maven Eclipse application which I'm trying to run through the command prompt using the following command ... throws the same error. See Question&Answers more detail:os...

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

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234 views

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java - Date and time formatting depending on locale

I'm new to both Java and Android development so this might be a stupid question, but I've been searching for ... 't find anything. Many 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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224 views

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java - What does addScalar do?

The JavaDoc says: SQLQuery org.hibernate.SQLQuery.addScalar(String columnAlias, Type type) Declare a scalar query ... be absolutely different. See Question&Answers more detail:os...

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

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