Recent questions tagged java

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java - Maven + SLF4J: Version conflict when using two different dependencies that require two different SLF4J versions

I have a project that use both dependencies independently: BoneCP and Hibernate. But thanks to SLF4J and its version ... :asm:jar:3.2:compile 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 ignore enum fields in Jackson JSON-to-Object mapping?

I have a JSON Object something like: {"name":"John", "grade":"A"} or {"name":"Mike", "grade":" ... unknown fields with in enum types? 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 - Why is "hibernate.connection.autocommit = true" not recommended in Hibernate?

In Hibernate API, there is a property hibernate.connection.autocommit which can be set to true. But in the API ... this property to true ? 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 data, find by property of a nested object

I have the following code: @Entity public class StudentEntity { @Id private String id; private Student student; ... . Is this possible? 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 access a Runnable object by Thread?

Possible duplicate: need-help-returning-object-in-thread-run-method Hello. I have a class implementing runnable and I have ... `foo` here? } } 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 - Forcing Tomcat to use secure JSESSIONID cookie over http

Is there a way to configure Tomcat 7 to create JSESSIONID cookie with a secure flag in all occasions? Usual ... is made through plain http? 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 Async Uncaught Exception handler

@Override @Async public void asyncExceptionTest() { int i=1/0; } How can I log this using ... the DefaultUncaughtExceptionHandler like normal. 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 - Why am I getting the following error when running Google App from eclipse?

I did a search and found QuickTip: VerifyError with jdk 7: If you are struggling with the following kind of error ... with Java version 1.7.0 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 - Synchronizing on local variable

I noticed a weird construct in ConcurrentHashMap's compute and computeIfAbsent methods: Node<K,V> r = new ReservationNode<K, ... it as a no-op? 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 - ORA-12516, TNS:listener could not find available handler

My error: java.sql.SQLException: Listener refused the connection with the following error: ORA-12516, TNS:listener ... issue with 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 - Get annotated parameters inside a pointcut

I have two annotation @LookAtThisMethod and @LookAtThisParameter, if I have a pointcut around the methods with ... @LookAtThisParameter? } } 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 and interfaces

I read all over the place about how Spring encourages you to use interfaces in your code. I don't see it. ... interfaces (other than the docs)? 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 center in JTable cell a value?

How to center a value in JTable cell? I'm using Netbeans. See Question&Answers more detail:os...

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

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282 views

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java - HttpURLConnection sends a POST request even though httpCon.setRequestMethod("GET"); is set

Here is my code: String addr = "http://172.26.41.18:8080/domain/list"; URL url = new URL(addr); HttpURLConnection ... "GET"); to set it to GET? 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 Data Binding layout_width and layout_height

I need to be able to dynamically set an EditText's height property. I am using data binding for other properties ... in advance for the 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 native interface - Why Apache Kafka Streams uses RocksDB and if how is it possible to change it?

During investigation within new features in Apache Kafka 0.9 and 0.10, we had used KStreams and KTables. There is ... are not going over JNI. 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: multiple SLF4J bindings

This is probably a repeated question, but i can't figure it out where is the binding collision. I have my Spring ... error is gone... 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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425 views

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java - Eclipse IDE- Add jar? Add External jar? Add Library?

I want to integrate TwitterAPIME to my Blackberry project. I have 3 Jar files provided by TwitterAPIME. I am not ... jar or Adding Library ? 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 - FileOutputStream crashes with "open failed: EISDIR (Is a directory)" error when downloading image

I'm trying to download an iamge from the internet, Here is the code: try { String imgURL = c.imgURL; String ... " /mnt/sdcard/tmp/" exists. 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 Data JPARepository: How to conditionally fetch children entites

How can one configure their JPA Entities to not fetch related entities unless a certain execution parameter is provided ... (String id); } See Question&Answers more detail:os...

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

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328 views

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java - Do I need to flush the servlet outputstream?

Do I need to "flush" the OutputStream from the HttpServletResponse? I already saw from to Should I close the servlet ... // yes/no/why? } 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 - Random geographic coordinates (on land, avoid ocean)

Any clever ideas on how to generate random coordinates (latitude / longitude) of places on Earth? Latitude / ... and a few other factors. See Question&Answers more detail:os...

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

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119 views

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java - Cassandra - transaction support

I am going through apache cassandra and working on sample data insertion, retrieving etc. The documentation is very ... thank you 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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402 views

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java - Hex-encoded String to Byte Array

String str = "9B7D2C34A366BF890C730641E6CECF6F"; I want to convert str into byte array, but str.getBytes() returns 32 bytes instead of 16. 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 a variable instead of a parameter index with a JDBC prepared statement

In many programming languages something like this is possible for prepared statements: PreparedStatement statement = ... . Regards, Kai See Question&Answers more detail:os...

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

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292 views

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java - Spring boot + thymeleaf in IntelliJ: cannot resolve vars

I'm writing a short web form application using spring boot and thymeleaf on IntelliJ, but it seems that in the ... just a problem of 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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840 views

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java - How to load image through byte array using Glide?

I have an image contents byte[] form. But when i load them through Glide then broken images are shown. what I ... " to Glide code defined above. 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 create a database with flyway?

Question: Is it possible to create a new DB in a migration script and then connect to it? How? My ... with passing password to c command. See Question&Answers more detail:os...

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

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