spring源码怎么读

spring源码怎么读,第1张

在我们的生活之中,有形形色色的万物(Object),有飞机,有汽车,有轮船,还有我这个沧海一粟的java讲师。
试问:了解飞机底层架构的人,就一定能把飞机开好吗?精通汽车的构造和底层原理的人,就保证开车不出事故吗?或者反过来问,一个多年的开出租车的老司机,技术非常娴熟,但是你问他汽车的架构和底层原理,你觉得有多少老司机能准确的答出来?
那就对了,了解了,读懂了spring底层源码的程序员,我们并不能保证他就是一个好程序员,我心中的一个好的程序员是要能够提出解决方案的程序员,就好比清华北大确实只是个过程,最后的目的,是为国家为人民做出奉献才是我们活着的价值。所以说我并不看好去阅读spring源码这个行为。闻道有先后,术业有专攻,我们不是提供底层技术的人!绝大多数的程序员,我以为正确的做法是站在巨人的肩膀上,把前辈留下来的精髓发扬光大才是正道,简而言之,把怎么用,和为什么要这么用学好才是大多数程序员学习技术的关键。就好比去学驾照的时候,教练只需要关心你是否会开车,是否遵守交通规则,并不关心你是否了解汽车是如何在路上跑起来的。
一个人的精力和时间都是有限的,分细了来说,开发者就是技术的使用者,重点在于如何正确熟练的使用,而不是一昧地去关心底层原理,如果要完全读懂spring源码,首先,英语就得很厉害吧,其次,得花多少时间?就算读懂了,那收获和付出也不成正比,大把大把的时间为何不花在java更多,更高级,更有意义的技术上呢?笔者此话并不是说spring源码读了没用,只是让我们的时间更有价值,例如分布式微服务,区块链技术,大数据,python,作为新时代的IT佼佼者,我们是否应该随着时代的脚步,迎接崭新的未来?我奉劝大多数人,不必去看spring源码,除非你确实感兴趣作为技术研究,这样是可以的。一个正常的工作者,是不建议花宝贵的时间去看的,那学生就更不应该去看了。此话怎讲?我以为,学生应以学业为重,士不可不弘毅,任重而道远,首先应该扩展其知识的广度,和技术的娴熟使用,再培养学生独立解决问题的能力,沟通协作的能力,最后才考虑技术的深度。
笔者在多年前也被面试过很多很多问题,但是从来没有一个面试官会问spring底层源码,曾经阿里巴巴的架构师也面试过我,直到后来,我成为了面试官,当我去面试别人的时候,我也不会去问spring源码这些东西,因为999%企业招人进来,是要做事实的,不是让你去研究一个技术,绝大多数更在乎的是利用现有的技术,去完成一些项目功能。除了世界上极少数著名的企业他们需要技术研究员,才对这些有所要求,那要招这类人才,估计至少也是名校研究生以上吧,所以普通程序开发者,我觉得学好技术的正确与熟练使用,才是重中之重!
不宜本末倒置,不宜好高骛远。笔者从事Java行业以来,真要说全阶段全程全栈都精通的人,应属风毛菱角,故此,更应让所学知识运筹帷幄,举一反三,千里炉火,万里纯青。以上篇幅在说我对阅读spring源码的一些强烈建议,最终结论,是不看、不读就此作罢。
那有的感兴趣的人非要阅读呢?

Ok,其实阅读spring源码并不算很难。
首先,应该去官网springio阅读写spring框架的理念,就好比读一本书,要阅读这本书的纲要,要明白为什么要设计spring架构。
然后,应该分模块阅读,先从核心模块开始阅读:如:
IoC Container, Events, Resources, i18n, Validation, Data Binding, Type Conversion, SpEL, AOP
那么在阅读的时候,英文能力差的话,可以使用翻译软件翻译成中文阅读,毕竟不是每个程序员英语都很棒,毕竟中国人看中国字更容易去理解。当然,有些翻译过来的并不准确,这个时候可以利用百度,去查看那段不理解的地方。
然后,把spring的jar包下载下来,利用IDEA打开,可以使用download资源,会发现,每个方法上面都会有详细的英文注释。一边看官方的说明,一边查看代码的编写,不难发现,非常多的代码写得很精辟,所以十分考验一个程序员的java基本功,特别是反射,JDK\CGLIB代理,和java常用的设计模式等。

people
are
busy
preparing
lots
of
stuff
for
Spring
festival
建议,用for
instance不要for
example
people
buy
some
new
clothes,
candies,cookies
and
fruits
后面不要,重复了
clean
up
their
house不要用将来时,楼主用太多了,介绍时没有必要
后面的自己改吧,一般现在时就可以了
they
also
recieve
red
packets,
people
organize
celebration
activeitest
to
cheer
for
the
spring
festival
最后一句
spring
festival
means
the
hopes
of
a
new
year,
that's
why
everyone
wish
ot
have
a
good
start
in
spring
festival

spring英语作文 篇1

every april i am beset by the same concern-that spring might not occur this year the landscape looks forsaken, with hills, sky and forest forming a single graymeld, like the wash an artist paints on a canvas before the masterwork my spirits ebb, as they did during an april snowfall when i first came to maine 15 years ago "just wait," a neithbor counseled "you'll wake up one morning and spring will just be here" andlo, on may 3 that year i awoke to a green so startling as to be almost electric, as if spring were simply a matter of flipping a switch hills, sky and forest revealed their purples, blues and green leaves had unfurled, goldfinches had arrived at the feeder and daffodils were fighting their way heavenwardthen there was the old apple tree it sits on an undeveloped lot in my neighborhood it belongs to no one and therefore to everyone the tree's dark twisted branches sprawl in unpruned abandon each spring it blossoms so profusely that the air becomes saturated with the aroma of apple when i drive by with my windows rolled down, it gives me the feeling of moving in another element, like a kid on a water slideuntil last year, i thought i was the only one aware of this tree and then one day, in a fit of spring madness, i set out with pruner and lopper to remove a few errant branches no sooner had i arrived under its boughs than neighbors opened their windows and stepped onto their porches these were people i barely knew and seldom spoke to, but it was as if i had come unbidden into their personal gardensmy mobile-home neighbor was the first to speak"you're not cutting it down, are you" another neighbor winced as i lopped off a branch "don't kill it, now," he cautioned soon half the neighborhood had joined me under the apple arbor it struck me that i had lived there for five years and only now was learning these people's names, what they did for a living and how they passed the winter it was as if the old apple tree gathering us under its boughs for the dual purpose of acquaintanceship and shared wonder i couldn't help recalling robert frost's words:the trees that have it in their pent-up buds to darken nature and be summer woods one thaw led to another just the other day i saw one of my neighbors at the local store he remarked how this recent winter had been especially long and lamented not having seen or spoken at length to anyone in our neighborhood and then, recouping his thoughts, he looked at me and said, "we need to prune that apple treeagain"

spring英语作文 篇2

Spring snow falls on the vast fields It covers ten thousand lakes, it hangs on tree branches, it spreads over roofs and slides down hillsides; it touches the faces of the young and old with surprise and delight

Spring snow is soft and gentle like a fairy dancing in the air So quiet and mild is its nature It is the snow that clears the gloomy sky and sprinkles the dusty land; it decorates trees with bridal gowns waving like gauze and floating like white clouds

This is Spring snow that Minnesotans cherish It brings neither ice nor cold, but patience and encouragement It kisses on the cheek of a restless boy as if saying: no hurry, just one more shower; it cheers up a pensive girl, whispering a promise of spring and Mayflowers

Spring snow has disappeared It has melted into the awakening fields; it has flown into the streams and rivers Yet, its transient stay lightens up so many hearts and its smile remains forever in the people’s mindsYou never know, until you see it dances off if winter is really gone or more important if spring has eventually come

spring英语作文 篇3

试题回放假设你是红星中学高三一班的学生李华,为校刊英语园地写一篇题为“Our Spring Outing” 的英文稿件。 请根据以下四幅图的先后顺序,叙述上周你们班从准备春游到春游结束的完整过程。

注意: 词数不少于60

提示词: 游乐园amusement park 垃圾箱bin

Last Thursday, we had a class meeting to discuss where to go for our spring outing We came up with several choices such as going boating, climbing a mountain, and going to an amusement park Finally, we decided to go mountain climbing

The next day, we set off early in the morning While climbing the mountain, we enjoyed the warm sunshine and a beautiful view However, when we reached the top, we were shocked to see litter here and there, such as bottles and banana peels Then we started to pick up the litter and put the rubbish into the nearby recycling bin and non-recycling bin respectively

We were tired but happy

名师点评

本情景作文的内容要点如下:1讨论;2爬山;3检拾别人的垃圾;4投放垃圾。内容要点可用不同方式表达。本文覆盖了所有内容要点,较好地完成了试题规定的任务。其中,写作主题突出,详略得当,应用了较多的语法结构和词汇,而且有效的'使用了语句间的连接成分,使全文机构紧凑。本文叙述清楚,描写细致,准确运用了很多富有表现力的词和句型,例如:“set off early”,“enjoyed the warm sunshine and a beautiful view”, ”were shocked to see litter here and there “等,将活动的情形很形象地描述了出来。

积累卡片英汉互译

好词1 set off 出发2 litter n废弃物3respectively adv分别地

好句1While climbing the mountain, we enjoyed the warm sunshine and a beautiful view

在爬山时,我们享受着温暖的阳光和美丽的风景。

1 However, when we reached the top, we were shocked to see litter here and there, such as bottles and banana peels

然而,当我们登上山顶,被眼前的一幕惊呆了:瓶子和香蕉皮这样的废弃物到处都是。

评析:细节描写,生动形象。“shock”一词也用得生动传神。

spring英语作文 篇4

Hello, my dear friends! Whats my favourite season Let me tell youMy favourite season is spring Spring is a lovely season, I think There is a garden behind my house In spring, the trees become green and the flowers give off fragrance There are many butterflies and bees over the flowers The butterflies are dancing and the bees are singing Sometimes it rains It usually rains quietly The rain moistens the trees and the flowers I think they may say, “Were very thirsty The rain is very good It can help us” What a beautiful scene! Dont you think so And what about your favourite season,could you tell me

参考译文

你好,我亲爱的朋友们!我最喜欢的季节是什么让我告诉你,我最喜欢的季节是春天。春天是个可爱的季节,我想。我的房子后面有一个花园。春天,树木变绿,花儿散发芳香。在花丛中有许多蝴蝶和蜜蜂。蝴蝶在跳舞,蜜蜂在歌唱。有时下雨。通常雨下得很平静。雨水滋润了树木和花朵。我想他们可能会说:“我们很渴。雨下得很好。它能帮助我们。“多美的景色啊!”!你不这么认为吗你能告诉我你最喜欢的季节吗

spring英语作文 篇5

spring is no longer that shy girl in my memory, who came very late, hesitated in the distance, overwhelmed by shyness until i waved to her then she would scurry happily nearer, stop feet away, waiting to be hugged but here and now, she, at the sight of me, grabs my hands and pulls me into her arms before i know what's happening

so here i am, a boy accustomed to the drab and dry and dreary spring of the north, devouring the sweetness of a south

it rained days ago and everything glistens with moisturetrees grow with new leaves of lively light green, not the dull and dusty color of winter several cherries are in full blossom now, with flowers clustering and squeezing and squabbling on the twigs what attract me most are the meadows, the greenish yellow meadows

sprawling on the meadows with grasses kissing my face, i can hear the rustling of leaves in the brisk breeze, the whispering and chuckling and bickering of birds, and the trotting, shuffling, tramping of people passing by

i can smell the refreshing fragrance that pervades the air,fragrance of flowering magnolias and growing grasses and moist soil i inhale the fresh air as deeply as i can and the aroma in vades my whole being

also, i can see the fallen leaves of platanes wafting around like butterflies flying from one flower to another once so high above on the treetops enduring the trials of bitter cold and blustering gale, they are so easily torn loose by a warm breezewhy

i cannot help thinking of our situation we chinese defy any powerful enemy, but how come we have been so easily attacked by sars

spring英语作文 篇6

Spring came with ail its glories The new grass exposed its green colour The pretty flowers opened their blossoms We were tempted to go for an outing

It was Sunday, the 20th of April We set out very early on bikes, carrying bottles of champagne, beer and bags of cakes, bacon and cooked eggs We rode along the winding paths in the fields, across the meadows and down the roads The willow were fresh and green The swallows were flying to and fro, up and down the sky The birds, like musicians, snang their melodious songs in the trees, and the butterflies, like colorful dancers, were fluttering here and there We breathed the fresh air deeply and laughed heartily

At 10 am we arrived at the foot of the Shushan Hill We left our bikes with a bike repairing shop and began to climb up the Hill Near the top, under a big tree with luxuri ant foliage we had our picnic We drank and ate, talked and laughed After the picnic we stood in the breeze with our hands on our waists, enjoying the fine landscape Then we lay on the grass talking about our life and studies

At about 4 p m , we returned with balmy greenness on our backs and freshness in our hearts

spring英语作文 篇7

Spring is everywhere In spring, trees and grass begin to turn green The flowers start to bloom In the suburb, some children fly kites In the garden, there are a lot of beautiful and colorful flowers Spring is wonderful I like spring

spring英语作文 篇8

Far and away the most important holiday in China is Spring Festival, also known as the Chinese New Year To the Chinese people it is as important as Christmas to people in the West The dates for this annual celebration falls on the lst day of the lst lunar month Generally speaking, the timing of the holiday varies from late January to early February

Spring Festival is the most important and popular festival in China Before Spring Festival ,the people usually clean and decorate their houses And they go to the Flower Fairs to buy some flowers During Spring Festival ,the adults usually give lucky money to children People often get together and have a big meal Some people eat dumpling for dinner People also stick on couplets and set off fireworks to celebrate it

Spring Festival has a long history It is said that people keep the monster----”nian”, a fierce animal, away from our villages and our homes So to celebrate Spring Festival means to pray a happy and a peaceful life I like Spring Festival!

spring英语作文 篇9

Spring comes at last Everything begins to grow The trees turn green, and the flowers come out On the playground, in the fields, on each side of the road, the young grass grows everywhere

Spring also arrives in our school Come and see, behind our teaching building, there are some small pear trees covered with white flowers; on both sides of it, there are some other flowers smiling at you, Some are yellow, some are red In our school garden, more flowers are there All kinds of flowers of many colours can be seen

Look, there are some Kites flying in the sky The spring wind is blowing The sun is shining brightly Some boys are playing games in the sun, Listen, a group of girls are singing "Where’s spring" It sounds like the singing of lark birds All these make me think that spring is here, spring is there, and spring is just in our school Fhe boys and the girls are all like flowers in spring

What a beautiful season! }tow lovely the children are!

翻译:

春天来了最后。一切都开始长大。树木变绿,并花了出来。在 *** 场上,在田间地头,在路的两侧,年轻寸草不生无处不在。

春天也来到了我们的学校。快来瞧一瞧,教学楼,还有铺满了白色的花朵一些小梨树;在它的两边,还有一些其他的花儿向你微笑,有些是的,有些是红色的。在我们学校的花园里,有更多的花。各种很多颜色的花中可以看出。

你看,有一些风筝在天空中飞翔。春天的风在吹。阳光明媚。有些男孩在玩游戏的太阳,听着,一群女孩在唱着“哪里的春天在哪里?”这听起来像百灵鸟的歌声。所有这些让我觉得春天来了,春天在那里,春天就在我们学校。男孩和女孩是在春天的花朵吗。

多么美丽的季节!多可爱的孩子们!

During the epidemic, I gained a lot of skills, among which I practiced most every day to help my parents clean up Well, today I was busy again

First, sweep the floor My left hand grasps the long handle dustpan, the right hand holds the long handle broom, starts from the sitting room, sweeps earnestly As I swept, I stared at the tiny specks of dust that appeared every day What did they look like Where do they e from If you think about it carefully, you will find that most of the dust is the wool or wadding that falls from the cloth such as clothes and quilts In addition, there is the hair and hair on people‘s bodies, and some is the all dust brought in by shoes from the outside Then I swept to o bedrooms, where there were pencil and rubber shavings on the floor; Mom and dad have soot in the bedroom and so on

The second step is to mop the floor I now rinse and ist the mop in the patio pool, and then carry the mop basin with half a bucket of water From the living room began to drag, while dragging and found on the ground there are some missing when sweeping the all hair, then use paper towels to pick up the fish Then the bedroom, and finally the kitchen, where the heavy oil is

The third step is to wipe with a cloth Wipe the desktop, cabis and other places Wipe me while chanting, wipe every day, or there will be a steady stream of dust There’s no end to it!

When all the above procedures were finished, I was out of breath and sweating on my head But I couldn‘t help iling at the sight of the new room! Oh yeah, labor makes people happy

mybatis-322与spring 320整合,整合时只需要在applicationContextxml里配mybatis一些信息:
关键代码:
applicationContextxml
Xml代码
<context:property-placeholder location="classpath:jdbcproperties"/>
<bean id="dataSource" class="orgapacheibatisdatasourcepooledPooledDataSource" destroy-method="forceCloseAll">
<property name="driver" value="${jdbcdriver}"/>
<property name="url" value="${jdbcurl}"/>
<property name="username" value="${jdbcusername}"/>
<property name="password" value="${jdbcpassword}"/>
</bean>
<bean id="transactionManager" class="orgspringframeworkjdbcdatasourceDataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:annotation-driven/>
<bean id="sqlSessionFactory" class="orgmybatisspringSqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="typeAliasesPackage" value="comjayungcurriculumdomain"/>
</bean>

<bean class="orgmybatisspringmapperMapperScannerConfigurer">
<property name="basePackage" value="comjayungcurriculummapper"/>
</bean>


欢迎分享,转载请注明来源:内存溢出

原文地址: https://outofmemory.cn/yw/13354066.html

(0)
打赏 微信扫一扫 微信扫一扫 支付宝扫一扫 支付宝扫一扫
上一篇 2023-07-20
下一篇 2023-07-20

发表评论

登录后才能评论

评论列表(0条)

保存