Java 的话，JDBC Template 这种抽象很合理了，等 Java12 出了，支持多行字符串就可以告别 MyBatis 了（当然，我现在也不用）

ORM 的话，用 JPA 吧。你这套东西，恕我直言，半吊子的设计

空调了解一下

依赖注入的实质是代码生成，生成样板代码

还是重装稳一点

给用户装一个 DataGrip

sse 和 ws 都行吧，倾向于用 ws，灵活没跨域，可以弄一个专门的消息服务

及时沟通，不要大恩成仇😄

求人不如求己，建议学好洋文

用自家的域名做一下 cname 很难吗？

换 node，前后都自己写，没有这么多幺蛾子

tidb

你更新一下吧，现在最新是 0.9.9.18.1

刺激吃鸡

Effective Java 第三版第二章第一节有详细介绍

我简单摘录一下：

### 优点

One advantage of static factory methods is that, unlike constructors, they have names.

A second advantage of static factory methods is that, unlike constructors, they are not required to create a new object each time they ’ re invoked.

A third advantage of static factory methods is that, unlike constructors, they can return an object of any subtype of their return type.

A fourth advantage of static factories is that the class of the returned object can vary from call to call as a function of the input parameters.

A fifth advantage of static factories is that the class of the returned object need not exist when the class containing the method is written.

### 缺点

The main limitation of providing only static factory methods is that classes without public or protected constructors cannot be subclassed.

A second shortcoming of static factory methods is that they are hard for programmers to find.

### 一些常见的静态构造方法

**from**: A type-conversion method that takes a single parameter and returns a corresponding instance of this type, for example:

```java
Date d = Date.from(instant);
```

**of**: An aggregation method that takes multiple parameters and returns an instance of this type that incorporates them, for example:

```java
Set<Rank> faceCards = EnumSet.of(JACK, QUEEN, KING);
```

**valueOf**: A more verbose alternative to from and of, for example:

```java
BigInteger prime = BigInteger.valueOf(Integer.MAX_VALUE);
```

**instance** or **getInstance**: Returns an instance that is described by its parameters (if any) but cannot be said to have the same value, for example:

StackWalker luke = StackWalker.getInstance(options);

**create** or **newInstance**: Like instance or getInstance, except that the method guarantees that each call returns a new instance, for example:

```java
Object newArray = Array.newInstance(classObject, arrayLen);
```

根据我的实践，在 windows 上用 docker 最佳的方案是虚拟机，里面装个 Linux，然后再用 docker。虚拟化可以用 VirtualBox

@Livid

tls1.3 好评

又黑 Python