keisunique

keisunique的java之路计算机基础LinuxJava语法集合数据库Mysql框架SpringMybatis中间件RocketMQ工具IDEAgit计算机基础LinuxJava语法集合数据库Mysqlmysql5.6.47初始密码mysql5.6.47修改字符集为utf8mb4sql复习笔记框架Spring待学习Mybatis待学习中间件Ro...

1.说明1.多线程Bean无法注入，例如在任务执行中具体原因不太了解，有待深入学习2.解决1.编写一个SpringBean工具类，通过这个工具类获取Spring上下文，从而获取到Bean对象import org.springframework.beans.BeansException;import org.springframework.context.Applicat

1.相关jar包cglib-2.2.jar cglib-nodep-2.2.jar asm-3.3.1.jar2.定义Hello接口public interface Hello { void say(String name);}3.Hello接口实现类public class HelloImpl implements Hello{ @Override public void

1.接口Hellopublic interface Hello { void say(String name);}2.Hello实现类public class HelloImpl implements Hello{ @Override public void say(String name) { System.out.println("Hello"+name);

import java.io.IOException;import java.net.InetSocketAddress;import java.nio.ByteBuffer;import java.nio.channels.SelectionKey;import java.nio.channels.Selector;import java.nio.channels.ServerSocke

类型 字节 范围 byte 1 -128 ~ 127 char 2 ‘\u0000’ ~ ‘\uFFFF’ short 2 -32768 ~ 32678 int 4 -2,147,483,648 ~ 2,147,483,647 long 8 -9,223,372,036,854,775,808 ~ +9,223,372,036,854

线性表实现比较简单，难点主要在排序。参考资料：数据结构与算法（Java语言版）1.先写个接口Listimport Exception.outOfBoundaryException;public interface List { public int getSize();//获得当前线性表元素个素 public boolean isEmpty();//判断是否为空 public bo

1. 将毫秒值转换为日期public void demo1() { //获取当前时间毫秒值 long time = System.currentTimeMillis(); System.out.println(time);//1489330902308 //用Dated对象获取当前时间 Date date = new Date(); System.out

import java.io.BufferedReader;import java.io.FileInputStream;import java.io.InputStreamReader;import java.util.zip.ZipEntry;import java.util.zip.ZipInputStream;public class zipInput { public st