Author Archives: cowman.chiang

[Java] unicode to string

Posted on 2016 年 10 月 21 日 by cowman.chiang

public static void main(String[] args) { try { String abc = “0043006F0077006D0061002E002E002E90808ACB”; System.out.print(getString(abc)); } catch (Exception e) { System.out.println(“err”); } } public static String getString(String strValue) { StringBuilder str = new StringBuilder(); String temp; for (int i = 0; i … Continue reading →

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HBase: put byte value

Posted on 2016 年 10 月 04 日 by cowman.chiang

put “TableName”, “rowkey”, “cf:fieldname”, [0].pack(“N”) N => byte array put “TableName”, “rowkey”, “cf:fieldname”, [0].pack(“Q>”) Q => 64-bit unsigned, native endian => change endian to big endian

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[Linux] sudo: sorry, you must have a tty to run sudo

Posted on 2016 年 08 月 22 日 by cowman.chiang

edit /etc/sudoers find ‘requiretty’ add username like this Defaults:webuser requiretty

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What I think?

Posted on 2016 年 08 月 16 日 by cowman.chiang

I think the correct process of the information system is more important than beautiful code.

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[CSS] Removing outline on image map area

Posted on 2016 年 05 月 29 日 by cowman.chiang

Ref. Removing outline on image map area HTML ＜img class=”map” src=”…” usemap=”…” hidefocus=”true” /> CSS img.map, map area{ outline: none; }

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[PHP] Output debug information to console

Posted on 2016 年 05 月 28 日 by cowman.chiang

echo “＜script>console.log( ‘Debug Objects: ” . $data . “‘ );＜/script>”; Ref. stackoverflow: How can I write to console in PHP?

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[MySQL] Find in fixed string

Posted on 2016 年 05 月 27 日 by cowman.chiang

Ref. MySQL 的 FIND_IN_SET函數 SELECT * FROM table WHERE FIND_IN_SET(ID, ‘2,5,6,7,8,9,11,21,33,45’)

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[Git] List of changed files with another branch

Posted on 2016 年 05 月 27 日 by cowman.chiang

git diff –name-only branchname

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[HBase] Scan with filter by partial rowkey using HBase shell

Posted on 2016 年 05 月 26 日 by cowman.chiang

If we have these rowkey list data. xx_abc xx_abc_def xx_abd xx_abd_rfg To get rowkey which contain “abc” scan ‘TableName’, FILTER => “RowFilter(=, ‘substring:abc’)” We will get these. xx_abc xx_abc_def But if we want only get “xx_abc” scan ‘TableName’, FILTER => … Continue reading →

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Add SublimeText 2 context menu to windows explorer

Posted on 2016 年 05 月 13 日 by cowman.chiang

Ref. Github: iaian/sublimeText2_contextMenu.reg Replace the Sublime Text Directory’s path.

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