Java 8 之后很少用了

@Kaiv2 比如 Valhalla，Boxing 的出现

@TommyLemon
JDBC Template 原生 SQL 解决复杂查询
JPA 解决简单增删改查
MyBatis 方便动态 SQL 和多行字符串
Spring Data REST 直接根据数据表生成 REST API

成熟而流行的方案很多了，不要去做“半吊子的设计”

为什么不用数据库的储存过程？因为复杂度，这么做不能 handle 软件开发的复杂度（调试复杂、维护复杂、依赖平台、不好懂），所以不流行

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