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JavaWeb learning summary_Servlet development

Dec 02, 2016 pm 04:25 PM

JavaWeb

The java virtual machine runs the jar file directly

1. Select the java file, right-click and select export---> select jar file and click next 2. Check export generated class files and resources and export java source files and resoures and then enter the save path in jar file: and click next 3. Default Click next, click next again, click main cla...

Dec 02, 2016 pm 12:04 PM

java java虚拟机直接运行jar文件

2 ways to implement java dynamic proxy

Nov 30, 2016 pm 02:59 PM

java

Analysis of java modifiers

Dear viewers, today we will discuss related issues about access modifiers in Java, which are also common questions in interviews. To put it simply, access modifiers are created by code writers to distinguish when the code can be accessed and when the code cannot be accessed. Access restrictions in Java are divided into four categories: friendly (the so-called default type), public, private, and protected. Today we will take a look at the two categories that are more difficult to distinguish, namely friendly and protected. Let’s look at friendly first. When we are in front of members what...

Nov 26, 2016 am 09:14 AM

java 面试 java修饰符的解析

JAVA basics

First, go to the root directory where the jar files and java files are placed and use the command line to compile the java file with the jar package: javac -cp jcifs-1.3.17.jar -encoding utf8 RemoteFileUpload.java Execute: java -Djava.ext.dirs= ./RemoteFileUpload

Nov 26, 2016 am 09:12 AM

java JAVA 基础

Summary of Java String.split() usage

There is a String.split() method in the java.lang package, and the return is an array. I use some in my application. Let me summarize it for your reference only: 1. If "." is used as the separator, it must be as follows The writing method is String.split("\\."), so that it can be separated correctly. String.split(".") cannot be used; 2. If "|" is used as the separation, it must be written as follows, String. split("\ ...

Nov 26, 2016 am 09:11 AM

java Java String.split()用法小结

How to inject Service in Java Filter

I encountered a problem in the project. Injecting Service into Filter failed and the injected service was always null. As shown below: public class WeiXinFilter implements Filter{ @Autowired private UsersService usersService; public void doFilter(Ser ...

Nov 26, 2016 am 09:10 AM

Filter java 如何在Java Filter 中注入 Service

Java QR code tool class, with LOGO in the middle

import java.awt.BasicStroke; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Shape; import java.awt.geom.RoundRectangle2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.OutputStr

Nov 23, 2016 pm 02:54 PM

java 二维码

Why use dynamic packages in Delphi

Because the package is powerful. Design-time packages simplify the release and installation of custom components; run-time packages inject fresh power into traditional programming

Nov 21, 2016 am 11:34 AM

Delphi