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工作經(jīng)驗(yàn)

dwr工具類

DWR包含兩個主要部分: 1. 運(yùn)行在服務(wù)器端的servlet控制器(DwrServlet),它負(fù)責(zé)接收請求,調(diào)用相應(yīng)業(yè)務(wù)邏輯進(jìn)行處理,向客戶端返回響應(yīng)。 2.運(yùn)行在瀏覽器端的JavaScript,它負(fù)責(zé)向服務(wù)器端發(fā)送請求,接收響應(yīng),動態(tài)更新頁面

張軍 2020-03-19 20:44:59 9695

工作經(jīng)驗(yàn)

httpClient工具類

在日常開發(fā)中,我們經(jīng)常需要通過http協(xié)議去調(diào)用網(wǎng)絡(luò)內(nèi)容,雖然java自身提供了net相關(guān)工具包,但是其靈活性和功能總是不如人意,于是有人專門搞出一個httpclient類庫,來方便進(jìn)行Http操作。對于httpcore的源碼研究,我們可能并沒有達(dá)到這種層次,在日常開發(fā)中也只是需要的時候,在網(wǎng)上百度一下,然后進(jìn)行調(diào)用就行。在項(xiàng)目中對于這個工具類庫也許沒有進(jìn)行很好的封裝。在哪里使用就寫在哪些,很多地方用到,就在多個地方寫。反正是復(fù)制粘貼,很方便,但是這樣就會導(dǎo)致項(xiàng)目中代碼冗余。所以這里簡單的對httpcient的簡單操作封裝成一個工具類,統(tǒng)一放在項(xiàng)目的工具包中,在使用的時候直接從工具包中調(diào)用,不需要寫冗余代碼。

張軍 2020-03-20 19:04:30 6531

工作經(jīng)驗(yàn)

webService工具類

項(xiàng)目中調(diào)用了別的系統(tǒng)的webservice接口,調(diào)用成功之后發(fā)現(xiàn)wsdlLocation的地址是寫死的,不方便修改,所以需要實(shí)現(xiàn)地址,包括用戶名密碼的可配置。項(xiàng)目的框架是Spring,調(diào)用webservice使用的是CXF。

張軍 2020-03-19 20:34:27 6188

工作經(jīng)驗(yàn)

EmailUtil工具類

本文章向大家介紹EmailUtil,主要包括EmailUtil使用實(shí)例、應(yīng)用技巧、基本知識點(diǎn)總結(jié)和需要注意事項(xiàng),具有一定的參考價值,需要的朋友可以參考一下。

張軍 2020-03-19 20:49:25 5813

工作經(jīng)驗(yàn)

Apache+tomcat集群配置

分布式實(shí)現(xiàn)原理如上圖所示,主要通過Apache-Server作為中轉(zhuǎn)服務(wù)器,實(shí)現(xiàn)多個tomcat服務(wù)器之間的分布式處理,用戶直接請求Apache-Server,然后Apache-Server會將請求分發(fā)到具體的tomcat-server,之后tomcat-server響應(yīng)客戶請求并返回結(jié)果到Apache-Server,最后Apache-Server返回結(jié)果給用戶1.2&n

張軍 2020-07-31 22:04:02 5763

工作經(jīng)驗(yàn)

日期工具類-DateTime

字符串轉(zhuǎn)日期,日期轉(zhuǎn)字符串,當(dāng)前日期的月份,當(dāng)前日期的年份,當(dāng)前日期月份枚舉信息,一天的開始和結(jié)束時間,獲取一天,兩天,三天以后的日期,獲取上周 ,下周,上個月,下個月的日期,毫秒數(shù)時間戳,精確到秒,分,時,基于生日獲取年齡,基于年份獲取是否閏年等等。。。。

張軍 2020-03-19 20:37:04 5740

工作經(jīng)驗(yàn)

日期工具類

字符串轉(zhuǎn)日期,日期轉(zhuǎn)字符串,當(dāng)前日期的月份,當(dāng)前日期的年份,當(dāng)前日期月份枚舉信息,一天的開始和結(jié)束時間,獲取一天,兩天,三天以后的日期,獲取上周 ,下周,上個月,下個月的日期,毫秒數(shù)時間戳,精確到秒,分,時,基于生日獲取年齡,基于年份獲取是否閏年等等。。。。

張軍 2020-03-19 20:37:06 5694

工作經(jīng)驗(yàn)

經(jīng)驗(yàn)分享入口

java工具類匯總 日期工具類 excel工具類 反向ajax工具類 加密工具類 ftp工具類 http工具類 java工具類 資源文件工具類 拼音工具類 反射工具類 分頁工具類 排序工具類 連接超時工具類 xml工具類(互相轉(zhuǎn)換map,list等) 樹工具類 正則表達(dá)式工具類 內(nèi)存查詢工具類 freemarker工具類 壓縮解壓縮工具類 io工具類 JSON工具類 條形碼工具類 緩存工具類 證書工具類

張軍 2020-03-19 19:39:06 5582

工作經(jīng)驗(yàn)

日期工具類-新

一般,在項(xiàng)目中,我們會會經(jīng)常使用到日期的各種方式的處理,在各個業(yè)務(wù)邏輯操作中,都需要相關(guān)的日期操作, 因此,實(shí)現(xiàn)項(xiàng)目中的日期工具類的提出,還是十分重要的,下面,就項(xiàng)目中常用到的日期的相關(guān)操作方式, 做了一個小的工具類,幾乎包含所有的日期操作了,方便項(xiàng)目使用,也方便以后的復(fù)用和查詢.下面見代碼:

張軍 2021-10-19 23:23:07 5532

工作經(jīng)驗(yàn)

緩存工具類

緩存的意義在于高效的讀取高命中率的數(shù)據(jù)庫信息避免高頻的訪問數(shù)據(jù)庫,便捷的讀取常用的、全局的配置信息。

張軍 2020-03-19 19:57:09 5465

工作經(jīng)驗(yàn)

jdk的https證書生成

為了盡可能避免安全問題,公司的很多系統(tǒng)服務(wù)都逐步https化,雖然開始過程會遇到各種問題,但趨勢不改。最完美的https應(yīng)用是能實(shí)現(xiàn)雙向認(rèn)證,客戶端用私鑰簽名用服務(wù)端公鑰加密,服務(wù)端用私鑰簽名客戶端都公鑰加密,但現(xiàn)實(shí)很多情況不可能讓每個客戶端都申請一個證書,因此只實(shí)現(xiàn)https的單項(xiàng)認(rèn)證,即只要服務(wù)端又證書,客戶端只驗(yàn)證https端證書可靠就可進(jìn)行https通信。在某些情況下為了不花錢買第三方信任機(jī)構(gòu)頒發(fā)都證書,客戶端在一些情況下也不做服務(wù)器端都認(rèn)證,兩邊只實(shí)現(xiàn)htts的加密通信。最近就遇到一個問題,https調(diào)用證書驗(yàn)證失敗,最終考慮還是忽略調(diào)服務(wù)證書的驗(yàn)證。

張軍 2020-03-19 20:21:47 5462

工作經(jīng)驗(yàn)

條形碼/驗(yàn)證碼圖片類

條形碼類型及常見條形碼介紹條形碼或條碼(barcode)是將寬度不等的多個黑條和空白,按照一定的編碼規(guī)則排列,用以表達(dá)一組信息的圖形標(biāo)識符。常見的條形碼是由反射率相差很大的黑條(簡稱條)和白條(簡稱空)排成的平行線圖案。條形碼可以標(biāo)出物品的生產(chǎn)國、制造廠家、商品名稱、生產(chǎn)日期、圖書分類號、郵件起止地點(diǎn)、類別、日期等許多信息,因而在商品流通、圖書管理、郵政管理、銀行系統(tǒng)等許多領(lǐng)域都得到了廣泛的應(yīng)用。

張軍 2020-03-19 19:49:42 5221

工作經(jīng)驗(yàn)

壓縮/解壓縮工具類

最近碰到個需要下載zip壓縮/解壓縮包的需求,于是我在網(wǎng)上找了下別人寫好的zip工具類。但找了好多篇博客,總是發(fā)現(xiàn)有bug。因此就自己來寫了個工具類。 這個工具類的主要功能為: (1)可以壓縮/解壓縮文件,也可以壓縮/解壓縮文件夾 (2)同時支持壓縮多級文件夾,工具內(nèi)部做了遞歸處理 (3)碰到空的文件夾,也可以壓縮/解壓縮 (4)可以選擇是否保留原來的目錄結(jié)構(gòu),如果不保留,所有文件跑壓縮/解壓縮包根目錄去了,且空文件夾直接舍棄。注意:如果不保留文件原來目錄結(jié)構(gòu),在碰到文件名相同的文件時,會壓縮失敗。 (5)代碼中提供了壓縮和解壓縮文件的方法,可根據(jù)實(shí)際需求選擇方法。

張軍 2020-03-19 20:27:26 5197

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