包含标签：Java 的文章
-
Java – upload running files in PHP
I know it sounds strange There is a PHP file on my server, which is responsible for processing the upload The Java pro…… -
Java – class level custom annotations cannot be detected in spring AOP
I tried to intercept classes in spring with the following settings Interceptor @Aspect @Component public class MyInter…… -
Java – how to run a thread repeatedly after a period of time
I want to run a thread (perform some time-consuming tasks in the background and do not update the UI). It just downloa…… -
Java – invalid name pattern when trying to pass custom Oracle type object mapping
Java spring customizes the Oracle type as a parameter and gets the following error I don't understand what the invalid…… -
Java: faster overloading or if / else
I have children's classes, and each class has other members who bring different types of value There may be longobject…… -
Java – one to many one-way parent-child ID cascade saving
When I try to save the ID from the parent class to the child class, I keep getting errors I tried all types of mapping…… -
Java – repeated input errors when using POI with gradle
I started a project that needed the Apache POI library I pasted them in my build Everything seems to be fine in the gr…… -
Java – use Jackson JSON parsing to convert true or false to Boolean values
I'm using the Jackson annotation to parse the JSON response into a POJO object I use Boolean variables in POJO to map …… -
java – Restlet Protocol. File usage
I have an example about protocol in the restlet site Problems with file usage // URI of the root directory. public sta…… -
Writing custom Java objects to parquet
I have some custom Java objects (internally composed of other custom objects) I want to write this to HDFS in parquet …… -
Cause: javax net. ssl. SSLHandshakeException：java. security. Cert.certificateexception: there is no x509trustmanager implementation (spring) in Java
I'm trying to verify that I have a server certificate. I've created a keystore and trust store The exception occurred …… -
Java – error R10 (boot timeout) – > the web process cannot bind to $port – heroku within 60 seconds after startup
I'm trying to deploy my server on heroku I received this error: Error R10 (Boot timeout) -> Web process Failed to b…… -
General Java questions about interfaces
Consider that I have a method that passes list as a parameter In this method, I want to use a specific function such a…… -
Playframework – cause: javax persistence. Entitynotfoundexception: bean deleted – deferred load failed
Edit: additional information: play.api.Application$$anon$1: Execution exception[[EntityNotFoundException: Bean has bee…… -
java – String. Error in replaceall() function
I'm trying the following code: – String x = "asdfg/dgws"; x.replaceAll("/","\\"); But it was a failure This gave me th…… -
Java – ternary operator does not work
NetBeans says my ternary operator is not a declaration How? int direction; direction = (Math.random() < 0.5) ? 0 : …… -
Java – InputStream closed by imageio
I encountered a very strange problem with imageio Some objects in my java program have an image I use the static metho…… -
About classes extended from base classes (Java)
I am a beginner of Java, trying to write a party task system for the game I am writing. I have a few questions I want …… -
Java – prime factorization of large numbers
I want to find the prime factorization of large numbers less than 10 ^ 12 public static List<Long> primeFactors(…… -
Why does the java compiler complain that local variables are not initialized here?
int a = 1,b; int a = 1,b; if(a > 0) b = 1; if(a <= 0) b = 2; System.out.println(b); If I run this, I receive: Ex…… -
Java – to in Oracle_ Display time zone description in char()
I have an SQL query select to_char(cast(sysdate as timestamp with LOCAL time zone),'YYYY-MM-DD,HH24:MI:SS TZR') from d…… -
Java – namespace issues
I have the following questions I tried to wrap the code from C to Java COMMON. H namespace rinad { namespace mad_manag…… -
Java – how to split large XML into small pieces using vtdgenhuge?
I want to break the large XML into small pieces I am using vtdgen to split the XML file into small pieces, which is su…… -
Java – add “http: / /” before my address
I extract addresses from a source, but some extracts do not have http: / / addresses in front of them. How can I check…… -
Java – one to many one-way parent-child ID cascade saving
When I try to save the ID from the parent class to the child class, I keep getting errors I tried all types of mapping…… -
Why am I on 1.8 0_ 45, Java Lang. nosuchmethoderror: createimageusingnativesize error
In some cases, the code used to process a single image dragged and dropped from some webrowsers (Firefox) is in 1.8 0_…… -
Java – randomly select a node from the n-ary tree
My node class: import java.util.ArrayList; public class Tree<T> { private Node<T> root; public …… -
How to delete an object from a linked list in Java?
There is a problem in my code. I made a sample program to display the EMP details in the link list. Now the problem wh…… -
Akka distribution pub sub: Java implementation does not work
Subscriber's main class: application java package com.mynamespace; import org.springframework.boot.SpringApplication;…… -
Java – why is this called backtracking?
I read it on Wikipedia and Google it, But I can't figure out what "backtracking algorithm" means I saw this solution i…… -
How do I bind the Java spring time attribute to the thymeleaf field?
I have a problem binding a java time attribute to the thymeleaf field@ H_ 404_ 7@ <input th:field="*{startTime}" ty……