Programmer Think

Today, I will continue to introduce the related functions of Java Web twitter project, mainly the selfdetail.jsp interface Modify background map function <button class="btn btn-info" id="xiugaibg">Click to modify the background map</button> <form action="" method="post" id="updatebg" e ...

1. Create a tool class to generate pictures package com.bishe.utli; import javax.imageio.ImageIO; import java.awt.*; import java.awt.image.BufferedImage; import java.io.IOException; import java.io.OutputStream; import java.util.Random; public class ImageVerificationCode { private int weight = 1 ...

When I load script/console, sometimes I want to play with the controller's output or view assistant methods. There are ways to: Simulation request? Call the method from the controller instance on the request? Test assistant method by controller instance or other means? #1 building To call the helper, use the helper object ...

This blog series is summarized here: Hibernate summary Fetching strategies Fetching strategies 1. Multi to one single end grabbing The first way The second way 2. One to many grabs One end of one is a single object query One end is multiple object queries Source project file: Hibernate 4.3_ ...

order This paper focuses on the scheduled delivery time of artemis HDR_SCHEDULED_DELIVERY_TIME activemq-artemis-2.11.0/artemis-core-client/src/main/java/org/apache/activemq/artemis/core/message/impl/CoreMessage.java public class CoreMessage extends RefCountMessage implements ICoreMessage { //...... @Override public Long getScheduledD ...

There is a log library for developers to use in boost, but the efficiency is not the highest: Add the header file "include < boost / log / trial. HPP > to import the log Library The log Library in boost has the following six levels: BOOST_LOG_TRIVIAL(trace) << "A trace severity message" ...

order This paper mainly studies the push-pull mode of artemis messages Pull mode receive activemq-artemis-2.11.0/artemis-jms-client/src/main/java/org/apache/activemq/artemis/jms/client/ActiveMQMessageConsumer.java public final class ActiveMQMessageConsumer implements QueueReceiver, TopicSubscriber { //...... @Override public Message ...

Engineering creation Create and enter the catkin folder wilson@ubuntu:~/code$ mkdir catkin wilson@ubuntu:~/code$ cd catkin/ Create and enter src folder wilson@ubuntu:~/code/catkin$ mkdir src wilson@ubuntu:~/code/catkin$ cd src/ wilson@ubuntu:~/code/catkin/src$ Initializing the workspace in the ...

This article focuses on how SpringSecurity provides the default form login page and how it presents the process. Involve 1.FilterSecurityInterceptor， 2.ExceptionTranslationFilter ， 3.DefaultLoginPageGeneratingFilter filter, The voting mechanism of AccessDecisionManager is also briefly introduced. _1. Prepare (experience SpringSecurity default ...

[Python crawler instance learning chapter] - 4. Super detailed video of climbing bilibili bili Because I often study on station B, but I can't help but my home network is too poor, and my online viewing is seriously jammed, so I got the idea of downloading videos (if you just want to download videos, ...