<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[qq_41574004的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/qq_41574004</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; qq_41574004]]></copyright><item><title><![CDATA[ksql整合debezium创建连接器出现500]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/123376833</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/123376833</guid><author>qq_41574004</author><pubDate>Wed, 09 Mar 2022 14:36:11 +0800</pubDate><description><![CDATA[Caused by: org.glassfish.jersey.server.ContainerException: java.lang.NoClassDefFoundError: Could not initialize class io.debezium.connector.mysql.MySqlConnectorConfig
	at org.glassfish.jersey.servlet.internal.ResponseWriter.rethrow(ResponseWriter.java:254)]]></description><category></category></item><item><title><![CDATA[mysql自动备份脚本]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/123291708</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/123291708</guid><author>qq_41574004</author><pubDate>Sat, 05 Mar 2022 11:17:45 +0800</pubDate><description><![CDATA[mysql自动备份脚本]]></description><category></category></item><item><title><![CDATA[nginx.conf 日志切割、跨域...]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/123291466</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/123291466</guid><author>qq_41574004</author><pubDate>Sat, 05 Mar 2022 11:02:38 +0800</pubDate><description><![CDATA[nginx的配置，日志切割 、nginx解决跨域]]></description><category></category></item><item><title><![CDATA[linux防火墙部分配置介绍]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/123291322</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/123291322</guid><author>qq_41574004</author><pubDate>Sat, 05 Mar 2022 10:58:17 +0800</pubDate><description><![CDATA[linux 防火墙配置部分介绍]]></description><category></category></item><item><title><![CDATA[如何使用ansible对多个服务器进行免密登录]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/123290910</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/123290910</guid><author>qq_41574004</author><pubDate>Sat, 05 Mar 2022 10:44:54 +0800</pubDate><description><![CDATA[ansible免密登录]]></description><category></category></item><item><title><![CDATA[单例模式]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/116256707</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/116256707</guid><author>qq_41574004</author><pubDate>Thu, 29 Apr 2021 08:22:35 +0800</pubDate><description><![CDATA[1  饿汉式（静态常量）应用实例
2  饿汉式（静态代码块）
3  懒汉式(线程不安全)
4  懒汉式(线程安全，同步方法)
5  懒汉式(线程安全，同步代码块)
6  双重检查
7  静态内部类
8  枚举


1. 饿汉式（静态常量）应用实例
1. 饿汉式（静态常量）应用实例
步骤如下：
1)	构造器私有化 (防止 new )
2)	类的内部创建对象
3)	向外暴露一个静态的公共方法。getInstance
4)	代码实现
public class SingletonTest01 {
    publ.]]></description><category></category></item><item><title><![CDATA[webpack打包基本配置（一）]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/116202353</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/116202353</guid><author>qq_41574004</author><pubDate>Tue, 27 Apr 2021 15:30:54 +0800</pubDate><description><![CDATA[webpack初始化以及静态资源的打包

(项目地址D:\vueproject\webpack\webpack01）
在项目根路径下      npm init
安装webpack的脚手架

npm i webpack webpack-cli -g（全局安装）
npm i webpack webpack-cli -D（本地安装）


新建index.js —&gt;webpack的入口文件
运行指令

开发环境:
webpack ./src/index.js -o ./build/built.js --mo]]></description><category></category></item><item><title><![CDATA[SpingData Jpa的配置和常用操作]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/103017379</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/103017379</guid><author>qq_41574004</author><pubDate>Mon, 11 Nov 2019 20:52:54 +0800</pubDate><description><![CDATA[SpringData Jpa 的入门操作

导入坐标

&lt;dependencies&gt;
&lt;!--  单元测试  --&gt;
        &lt;dependency&gt;
            &lt;groupId&gt;junit&lt;/groupId&gt;
            &lt;artifactId&gt;junit&lt;/artifactId&gt...]]></description><category></category></item><item><title><![CDATA[Jpql的一些常用方法]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/103017261</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/103017261</guid><author>qq_41574004</author><pubDate>Mon, 11 Nov 2019 20:31:25 +0800</pubDate><description><![CDATA[查询全部
@Test
    public void testFindAll(){
        EntityManager manager = jpaUtil.getEntityManager();
        EntityTransaction tx = manager.getTransaction();
        tx.begin();
        String jpql="...]]></description><category></category></item><item><title><![CDATA[Jpa的学习笔记]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/103016837</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/103016837</guid><author>qq_41574004</author><pubDate>Mon, 11 Nov 2019 20:24:08 +0800</pubDate><description><![CDATA[开始学习Jpa规范
第一步 导入jar包
  &lt;dependency&gt;
    &lt;groupId&gt;junit&lt;/groupId&gt;
    &lt;artifactId&gt;junit&lt;/artifactId&gt;
    &lt;version&gt;4.12&lt;/version&gt;
&lt;/dependency&gt;
&lt;depend...]]></description><category></category></item><item><title><![CDATA[jdk动态代理实现]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/95097948</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/95097948</guid><author>qq_41574004</author><pubDate>Mon, 08 Jul 2019 20:55:31 +0800</pubDate><description><![CDATA[JDK动态代理

public class jdkProxyExample implements InvocationHandler {
 private Object target = null;

 public Object bind(Object target) {
  this.target = target;
  return Proxy...]]></description><category></category></item><item><title><![CDATA[ssm框架整理]]></title><link>https://blog.youkuaiyun.com/qq_41574004/article/details/89210167</link><guid>https://blog.youkuaiyun.com/qq_41574004/article/details/89210167</guid><author>qq_41574004</author><pubDate>Thu, 11 Apr 2019 14:53:12 +0800</pubDate><description><![CDATA[&lt;pom.xml&gt;



&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apach...]]></description><category></category></item></channel></rss>