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java - What website can I use to learn about the release and sharing of Alibaba's backend, big data, and cloud computing technologies?

What website can I use to learn about the release and sharing of Alibaba’s backend, big data, and cloud comput...

From [Javadiscussion group] 2017-05-27 17:40:14 0  1  1091

java - When building a WordPress website, does the backend have to use php?

I recently wanted to build a small personal website. I saw that WordPress can be used to build a website easil...

From [Javadiscussion group] 2017-05-17 10:03:26 0  4  1091

java - What is the role of the afterNodeInsertion method in HashMap?

Environment: jdk1.8 Problem: When learning HashMap, I found that the afterNodeInsertion method {code...} was c...

From [Javadiscussion group] 2017-05-17 10:03:41 0  1  1090

Advantages of tomcat?

Can you help summarize the characteristics and advantages of tomcat? Thanks

From [Javadiscussion group] 2017-05-17 09:58:03 0  3  1089

Android 使用HttpURLConnection進行GET請求時返回406錯誤？

HttpURLConnection用GET方式請求一個http接口,接口返回的是一個json文件，報406錯誤 代碼： URL url = new URL(urlstr); con...

From [Javadiscussion group] 2016-11-10 14:57:52 0  2  1089

Row level locks in innodb

Innodb implements two row-level locks, one is shared lock and the other is exclusive lock. I would like to ask...

From [Javadiscussion group] 2017-05-17 10:05:00 0  4  1088

java - MyEclipse中的的svn項目今天突然全變成了藍色的問號？

以前用的好好的，今天一打開全變成了問號

From [Javadiscussion group] 2017-04-18 09:33:23 0  2  1088

android - java的LinkedHashMap序列化傳遞之后，只能反序列化為HashMap

發(fā)送之前數(shù)據(jù)結(jié)構(gòu)： {代碼...} 通過 {代碼...} 傳遞到下一個activity之后，使用 {代碼...} 只能得到HashMap類型的數(shù)據(jù)結(jié)構(gòu)，HashMap<Integer, HashMap&am...

From [Javadiscussion group] 2017-04-17 17:12:41 0  3  1088

java - Strtus2 jumps to WEB-INF/content

Using strtus2, when action jumps, it will automatically jump to the WEB-INF/content directory. Don't know what...

From [Javadiscussion group] 2017-07-03 11:43:28 0  2  1087

java - maven指定-DarchetypeCatalog=local，但是提示找不到any catalog

原來一直卡maven-archetype-plugin:RELEASE懷疑是archetype-catalog.xml下不下來，所以手動下載了這個文件然后根據(jù)Maven官網(wǎng)的說法，可以使用local的方式Maven ar...

From [Javadiscussion group] 2017-04-18 10:52:46 0  1  1087

java - computer image representation method?

Aren't pixels generally in RGB space (0~255)? So how are the numbers in the above image converted?

From [Javadiscussion group] 2017-06-23 09:13:48 0  2  1086

What causes Java SE multi-thread security issues?

Maybe the code in the picture has a low probability of negative numbers, but if you add Thread.sleep(10); afte...

From [Javadiscussion group] 2017-06-12 09:26:22 0  5  1086

java - 并發(fā)ConcurrentHashMap的問題

這個問題的 說明有點長， step1 并發(fā)map中的put step2 step3 step4 step5 step6 step7 step8 step9 上面中steop3 表示重復嘗試獲取鎖達到一定的次數(shù)之后就 調(diào)用...

From [Javadiscussion group] 2017-04-18 10:56:54 0  3  1086

java - .html和.html

url: cxt+"basicRatesInfo.htm"和url: cxt+"basicRatesInfo.html有什么區(qū)別？為什么從ajax中的URL調(diào)用.html調(diào)不過去？？

From [Javadiscussion group] 2017-04-18 10:47:44 0  2  1086

java - 如果try{} catch{}之后沒有再進行拋出新的異常,事務(wù)管理還會回滾嗎.?

還有就是多個事務(wù)方法放同一個事務(wù)方法會合并成一個事務(wù)嗎?這樣做會有什么隱患嗎?

From [Javadiscussion group] 2017-04-17 16:40:12 0  5  1086