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spring 该怎么理解

发布时间:2025-05-24 08:28:35    发布人:远客网络

spring 该怎么理解

一、spring 该怎么理解

裂缝,裂开;【航海】倒缆,(甲板的)上翘,转向锚索;【建】起拱点[面]

the springs of one's conduct

Pierian spring学问,知识;诗的源泉,灵感

silent spring沉寂的春天(指因大量使用化学毒剂造成没有飞鸟的春天)

set every spring in motion(=set all springs going)开动所有发条,尽全力

take its springs from[out of]发源于...,始于,来自

with a spring一跳,一骨碌(起来等)

spring forth [out]跳出,冲出,突出,涌出,喷出;突然长出来

spring from突然从...冒出;起源于,出身于;来自

spring on [upon]扑向,袭击,突然提出

spring up跳上来,发生,萌芽,生长,出现

She sprang out of her chair to greet her father.

I have sprung my tennis racket.

spring a leak开始漏水;出现漏洞

春天,跃起,泉,弹簧,发条,弹性,弹力,根源

柯林斯英语大词典查词历史In a fast food storetwo chairs next to the bed动物去公园spring

to move or cause to move suddenly upwards or forwards in a single motion

to release or be released from a forced position by elastic force

to come, issue, or arise suddenly

(of a part of a mechanism, etc) to jump out of place

to make(wood, etc) warped or split or(of wood, etc) to become warped or split

to happen or cause to happen unexpectedly

the idea sprang from a chance meeting

to come into being or appear suddenly

(of a gun dog) to rouse(game) from cover

(of game or quarry) to start or rise suddenly from cover

to appear to have a strong upward movement

the beam springs away from the pillar

to explode(a mine) or(of a mine) to explode

to provide with a spring or springs

to arrange the escape of(someone) from prison

(of daylight or dawn) to begin to appear

the act or an instance of springing

the quality of resilience; elasticity.(as modifier)

the act or an instance of moving rapidly back from a position of tension

a natural outflow of ground water, as forming the source of a stream.(as modifier)

a device, such as a coil or strip of steel, that stores potential energy when it is compressed, stretched, or bent and releases it when the restraining force is removed.(as modifier)

a structural defect such as a warp or bend

the season of the year between winter and summer, astronomically from the March equinox to the June solstice in the N hemisphere and from the September equinox to the December solstice in the S hemisphere.(as modifier).

the earliest or freshest time of something

one of a set of strips of rubber, steel, etc, running down the inside of the handle of a cricket bat, hockey stick, etc

Also called: spring line a mooring line, usually one of a pair that cross amidships

springs sprang sprung springing

1. the season of growth;"the emerging buds were a sure sign of spring";"he will hold office until the spring of next year"

(hypernym) season, time of year

2. a natural flow of ground water

(synonym) fountain, outflow, outpouring, natural spring

(hypernym) geological formation, formation

3. a metal elastic device that returns to its shape or position when pushed or pulled or pressed;"the spring was broken"

4. a light springing movement upwards or forwards

(synonym) leap, leaping, saltation, bound, bounce

(derivation) bounce, resile, take a hop, bound, rebound, recoil, reverberate, ricochet

5. the elasticity of something that can be stretched and returns to its original length

6. a point at which water issues forth

(hypernym) beginning, origin, root, rootage, source

1. move forward by leaps and bounds;"The horse bounded across the meadow";"The child leapt across the puddle";"Can you jump over the fence?"

(derivation) leap, leaping, saltation, bound, bounce

2. develop into a distinctive entity;"our plans began to take shape"

(synonym) form, take form, take shape

3. spring back; spring away from an impact;"The rubber ball bounced";"These particles do not resile but they unite after they collide"

(synonym) bounce, resile, take a hop, bound, rebound, recoil, reverberate, ricochet

(hyponym) kick back, recoil, kick

(derivation) leap, leaping, saltation, bound, bounce

4. produce or disclose suddenly or unexpectedly;"He sprang a new haircut on his wife"

(hypernym) produce, bring on, bring out

5. develop suddenly;"The tire sprang a leak"

(hypernym) grow, develop, produce, get, acquire

6. produce or disclose suddenly or unexpectedly;"He sprang these news on me just as I was leaving"

(hypernym) disclose, let on, bring out, reveal, discover, expose, divulge, impart, break, give away, let out

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同义词: bounce bound hop hurdle jump leap vault

n.春天,弹簧,跳跃,弹性,活力,泉,源泉

vi.跳,弹跳,涌出,生长,裂开,高耸

actuating spring dome spring spring from spring board stabilizer spring multiple spring spring hinge spring gun spring pawl locking spring running spring spring flood packing spring spring control spring housing spring barley oil spring gland spring spring seat spring washer cantilever spring spring fastening

该解释由词友提供,仅供参考。免责声明

网络词典(beta)与 spring相关的例句calendar spring festival picture

Spring Festival Entertainment Programme

submarine hot spring community

spring back; spring away from an impact.

resembling a spring or the action of a spring.

二、SpringBoot+mybatis-plus+人大金仓数据库配置

配置数据源时,首先设定默认数据源或者数据源组为“master”,并启用严格匹配数据源模式,即当未匹配到指定数据源时,系统将抛出异常。具体配置如下:

primary: master#设置默认的数据源或者数据源组,默认值即为master

strict: true#严格匹配数据源,默认false。true未匹配到指定数据源时抛异常,false使用默认数据源

url: jdbc:kingbase8://127.0.0.1:54321/数据库名称?currentSchema=模式&characterEncoding=UTF-8

driver-class-name: com.kingbase8.Driver

另外,需要注意的是,使用dynamic-datasource-spring-boot-starter时,版本至少需要升级到3.5.0。

三、spring的mapper层主要做什么事

1、mapper层的作用是对数据库进行数据持久化操作,他的方法语句是直接针对数据库操作的现在用mybatis逆向工程生成的。

2、mapper层,其实就是dao层,主要是做数据持久层的工作,负责与数据库进行联络的一些任务都封装在此。

3、其设计首先是设计DAO的接口,然后在Spring的配置文件中定义此接口的实现类,然后就可在模块中调用此接口来进行数据业务的处理,而不用关心此接口的具体实现类是哪个类,显得结构非常清晰。

4、(1)DAO模式抽象出数据访问方式,业务逻辑层访问数据源时完全感觉不到数据源的存在。软件工厂中有一条很重要的法则:一个对象对其他对象的了解越少越好,了解越少就意味着依赖越少,可复用性越高。

5、(2)DAO将数据访问集中在独立的一层,因为所有的数据访问都由DAO代理,这层独立的DAO将数据访问的实现和系统的其余部分剥离,将数据访问集中,使得系统更具可维护性。

6、(3)DAO降低了业务逻辑层的复杂度。DAO管理复杂的数据访问,从而简化了业务逻辑层。所有与数据访问的实现有关的代码都不写在业务逻辑层里,业务逻辑层可集中处理业务逻辑,提高了代码的可读性和生产率。

7、(4)DAO有助于提升系统的可移植性。DAO模式通过将数据访问划分为抽象层和实现层,分离数据使用和数据访问的实现细节。这意味着业务层与数据访问的底层细节无关,也就是说,可以在保持上层机构不变的情况下,通过切换底层实现来修改数据访问的具体机制,提高了系统的可复用性。