Kettle_js指令碼_示例

阿新 • • 發佈：2018-11-19

Kettle 版本7.0

一，String function

1 .date2str

//js操作時間

var dValue = new Date();

//把時間變成字串

var dValue1 = date2str(dValue);

//把時間變成當前格式字串

var dValue2 = date2str(dValue,"dd.MM.yyyy");

//把時間變成當前格式字串

var dValue3 = date2str(dValue,"dd.MM.yyyy HH:mm:ss");

//把時間變成當前格式字串 + 語言

var dValue4 = date2str(dValue,"E.MMM.yyyy","DE");

//把時間變成當前格式字串 + 語言

var dValue5 = date2str(dValue,"dd.MM.yyyy HH:mm:ss","EN");

//把時間變成當前格式字串 + 語言 + 時區

var dValue6 = date2str(dValue,"dd.MM.yyyy HH:mm:ss","EN", "EST");

var str = dValue1 + "\n" + dValue2 + "\n" + dValue3 + "\n" + dValue4 + "\n" + dValue5 + "\n" + dValue6;

Alert(str);

2.escapeStr1

unEscapeHtml

//js加密解密1

var escapeStr = "<html></html>";

//編碼字串

var escapeStr1 = escapeHtml(str);

//解碼字串

var escapeStr2 = unEscapeHtml(escapeStr1);

Alert(escapeStr1 + "\n" + escapeStr2);

3.escapeXml

unEscapeXml

//js加密解密2

var escapeXmlStr = "<html></html>" ;

//編碼字串

var escapeXmlStr1 = escapeXml(escapeXmlStr);

//解碼字串

var escapeXmlStr2 = unEscapeXml(escapeXmlStr1);

Alert(escapeXmlStr1 + "\n" + escapeXmlStr2);

4.escapeSQL

//js轉換SQL，把單引號變成雙引號

var escapeSQLStr = "a'b'c"

var escapeSQLStr1 = escapeSQL(escapeSQLStr);

Alert(escapeSQLStr1);

5.fillString

//把這個 char複製10遍

Alert(fillString("a",10));

6.getOcuranceString

//判斷這個字串在另外一個字串有多少個

Alert(getOcuranceString("abcakldhiasdku","h"));

7.indexOf

//搜尋字串

var str1= "Hello Pentaho!";

//搜尋某個指定的字串值在字串中首次出現的位置

var str2= indexOf(str1, "Pentaho");

//搜尋某個指定的字串值在字串第7個之後中首次出現的位置

var str3= indexOf(str1, "o", 7);

Alert(str2 + "\n" +str3);

8.initCap

//返回經過處理的字串 -My Home

var str1 = "my home";

Alert(initCap(str1));

9.lower

//把字串的大寫變成小寫

var str1= "Hello World!";

var str2= lower(str1);

Alert("Input:" + str1);

Alert("Converted to LowerCase:" + str2);

10.upper

//把字串變成大寫

var str1= "Hello World!";

var str2= upper(str1);

Alert("Input:" + str1);

Alert("Converted to UpperCase:" + str2);

11.lpad

//判斷字串是否=>13,如果不夠13，則在前面補足x至13個

var str1= "Hello World!";

Alert("Input:" + str1);

Alert("Lpad:" + lpad(str1, "x",13));

12.rpad

//判斷字串是否=>13,如果不夠13，則在後面補足x至13個

var str1= "Hello World!";

Alert("Input:" + str1);

Alert("Rpad:" + rpad(str1, "x",13));

13.ltrim

Rtrim

trim

//去除字串空格

var str1= " Hello World! ";

Alert("Input:" + str1+" "+str1.length);

//去除左邊字串

Alert("Ltrim:" + ltrim(str1)+" "+ltrim(str1).length);

//去除右邊字串

Alert("Rtrim:" + rtrim(str1)+" "+rtrim(str1).length);

//去除全部字串空格

Alert("Trim:" + trim(str1)+" "+trim(str1).length);

14.num2str

//把數字變成字串

var d1 = 123.40;

var d2 = -123.40;

//把數字變成字串

Alert(num2str(d2));

//把字串變成指定格式的字串

Alert(num2str(d1, "0.00"));

//把字串變成指定格式的字串+區域

Alert(num2str(d1, "0.00", "EN"));

//把字串變成指定格式的字串+區域

Alert(num2str(d2, "0.00;(0.00)", "EN"));

15.protectXMLCDATA

//) 在XML中，指定某段內容不必被XML解析器解析時，使用<![CDATA[...]]>。也就是說中括號中的內容解析器不會去分析。所以其中可以包含>, <, &, ', "這5個特殊字元。經常把一段程式程式碼嵌入到<![DATA[...]]>中。因為程式碼中可能包含大量的 >, <, &, "這樣的特殊字元。

var str1 = "my home";

Alert(protectXMLCDATA(str1));

16.removeCRLF

//去除字串裡面的回車 \n\r字元

var removeCRLFStr = "abc"+"\n"+"\r"+"abc";

Alert(removeCRLF(removeCRLFStr));

17.replace

//轉換字串

var str1 = "Hello World, this is a nice function";

//把字串的World轉換成 Folk

var str2 = replace(str1,"World", "Folk");

Alert(str2);

//把字串的World轉換成 Folk nice 轉換成 beautifull

var str2 = replace(str1,"World", "Folk", "nice","beautifull");

Alert(str2);

18.str2RegExp

//跟據指定字元切割字串

var strToMatch = "[email protected]";

var strReg = "^(\\w+)@([a-zA-Z_]+?)\\.([a-zA-Z]{2,3})$";

var xArr = str2RegExp(strToMatch, strReg);

if ( xArr != null ) {

for(i=0;i<xArr.length;i++) {

Alert(xArr[i]);

}

else {

Alert("no match");

}

19.substr

//擷取字串

var str1= "0123456789";

//擷取前面6個字串，返回6789

var str2= substr(str1, 6);

//擷取8個字串，從第2個開始，返回23456789

var str3 = substr(str1,2,8)

Alert(str2);

Alert(str3);

二，numeric function

1.abs

//返回絕對值

var d1 = -1234.01;

var d2 = 1234.01;

Alert(abs(d1));

Alert(abs(d2));

2.ceil

//返回相反數

var d1 = -1234.01;

var d2 = 1234.01;

Alert(ceil(d1));

Alert(ceil(d2));

3.floor

//返回該數值的最大整數

var d1 = -1234.01;

var d2 = 1234.01;

Alert(floor(d1));

Alert(floor(d2));

4.str2num

//把字串轉成數字

var str1 = "1.234,56";

var str2 = "12";

//把字串按照指定的格式轉換成數字

Alert((str2num(str1,"#,##0.00")));

Alert((str2num(str2)));

5.trunc

//四捨五入取整，只能傳double

Alert(trunc(new Date()));

三，Date Function

1.dateAdd

//再Date時間上增加

// y - Years

// m - Months

// d - Days

// w - Weeks

// wd - Workingdays

// hh - Hours

// mi - Minutes

// ss - Seconds

var d1 = new Date();

Alert(dateAdd(d1, "y", 1));

Alert(dateAdd(d1, "m", 4));

Alert(dateAdd(d1, "d", 5));

Alert(dateAdd(d1, "wd", 5));

2.dateDiff

//返回倆個時間型別之間的差異

var d1 = new Date();

var d2 = dateAdd(d1,"y",1);

Alert(dateDiff(d1,d2,"y"));

Alert(dateDiff(d1,d2,"m"));

Alert(dateDiff(d1,d2,"d"));

Alert(dateDiff(d1,d2,"wd"));

3.getDayNumber

//返回一個數值，對應一個格式

var d1 = new Date();

Alert(d1);

//這一年的第幾天

Alert(getDayNumber(d1, "y"));

//這個月的第幾天

Alert(getDayNumber(d1, "m"));

//這個星期的第幾天

Alert(getDayNumber(d1, "w"));

//這個月的第幾個星期

Alert(getDayNumber(d1, "wm"));

4.getFiscalDate

//返回財政日期的日期值,基於給定的偏移量。格式 dd.MM.（暫時不知道怎麼用）

var d1 = new Date();

var str1 = "01.00.";

var str2 = "00.01.";

Alert(getFiscalDate(d1, str1));

Alert(getFiscalDate(d1, str2));

5.getNextWorkingDay

//返回下一個工作日，星期4-星期5，星期5-星期1

var d = new Date();

var d1 = getNextWorkingDay(d);

Alert(getNextWorkingDay(d1));

6.month

//返回當前月份0-11

var d1 = new Date();

Alert(month(d1));

7.quarter

//返回當前季度 1-4

var d1 = new Date();

Alert(quarter(d1));

8.week

//返回當前是這一年的第幾個星期year(var)

var d1 = new Date();

Alert(week(d1));

9.year

//返回當前是第幾年

var d1 = new Date();

Alert(year(d1));

10.str2date

//按照字串格式轉換成Data資料

Alert(str2date("01.12.2006","dd.MM.yyyy"));

Alert(str2date("01.12.2006 23:23:01","dd.MM.yyyy HH:mm:ss"));

Alert(str2date("Tue.May.2006","E.MMM.yyyy","EN"));

Alert(str2date("22.02.2008 23:23:01","dd.MM.yyyy HH:mm:ss","DE"));

Alert(str2date("22.02.2008 23:23:01","dd.MM.yyyy HH:mm:ss","DE", "EST"));

四，Logic Function

1.isCodepage

//檢查,一個字串值對給定的內碼表（不知道怎麼用）

var xStr = "RÃ©al";

Alert(isCodepage(xStr, "UTF-8"));

2.isDate

//檢查當前變數是不是時間變數

var d1 = "Hello World";

var d2 = new Date();

Alert(isDate(d1));

Alert(isDate(d2));

3.isEmpty

//檢查字串是不是空的

var d = "Hello World";

Alert(isEmpty(d));

4.isMailValid

//檢查這個郵件地址是不是對的

var str = "[email protected]";

Alert(isMailValid(str));

5.isNum

//檢查這個有變數是不是數字

var str1 = "Hello World";

var str2 = 123456;

Alert(isNum(str1));

Alert(isNum(str2));

6.isRegExp

//正則表示式匹配，先匹配第一個，如果沒有直接返回-1，如果有接下去匹配，返回匹配條數

var email1 ="[email protected]";

var email2= "[email protected]";

var email3= "[email protected]";

var str = "啊";

var reg1="^\\[email protected][a-zA-Z_]+?\\.[a-zA-Z]{2,3}$";

var reg2="^[\\w-\.][email protected]([\\w-]+\\.)+[\\w-]{2,4}$";

var reg3 ="[^\x00-\xff]";

Alert(isRegExp(email1, reg1,reg2) + " Matches");

Alert(isRegExp(email2, reg1,reg2) + " Matches");

Alert(isRegExp(email3, reg1,reg2) + " Matches");

Alert(isRegExp(str, reg3) + " Matches");

7.isWorkingDay

//判斷當前時間是不是工作日

var d1 = new Date();

Alert(isWorkingDay(d1));

五，Special Function

1.Alert

//訊息彈出框

Alert("Hello World!");

2.LoadScriptFile

//讀取當前路徑下的JavaScript檔案

var xPfad = "C:/Users/LiHan/Desktop/adc.js";

LoadScriptFile(xPfad);

3.LoadScriptFromTab

//從表裡讀取Script(不知道怎麼用)

var xTab = "Alert("+"Hello World!"+")";

LoadScriptFromTab(xTab);

4.LuhnCheck

//判斷當前卡號是不是正確信用卡號

var str1 = "4444333322221111";

Alert(str1 + ": " + LuhnCheck(str1));

var str2 = "4444333322221110";

Alert(str2 + ": " + LuhnCheck(str2));

5.appendToFile

//把資料新增到檔案。如果檔案不存在,它將被建立。

var strFile = "‪C:/Users/LiHan/Desktop/abc.txt";

var strContent = "Hello World!";

appendToFile(strFile, strContent);

6.decode

//匹配字串，返回指指定字串或預設值

var str1 = "Hallo";

//匹配hallo 如果有返回hello，沒有返回Hallo

Alert(decode(str1, "Hall", "Hello"));

//匹配1，如果有返回Mr。匹配2，如果有返回Mrs，沒有返回指定值N/A

Alert(decode(str1, "1", "Mr", "2", "Mrs", "N/A"));

//匹配1，如果有返回Mr。匹配2，如果有返回Mrs,沒有返回預設值，原字串

Alert(decode(str1, "1", "Mr", "2", "Mrs"));

var str1 = "Mrs";

//匹配1，如果有返回Mr，匹配2，如果有返回Mrs，沒有返回預設值，原字串

Alert(decode(str1, "1", "Mr", "2", "Mrs"));

7.execProcess

//執行一個processus（不知道什麼東西），返回執行結果

var processus="檔案路徑";

execProcess(processus);

8.fireToDB

//使用時（找不到MySQL連線不知道怎麼使用）

var strConn = "MySQL";

var strSQL = "SELECT count(*) from ttt";

var xArr = fireToDB(strConn, strSQL);

9.getDigitsOnly

removeDigits

//返回字串包含的數字的值

var str1 = "abc123cde";

Alert(getDigitsOnly(str1));

//去除字串中的數字

var str1 = "abc123cde";

Alert(removeDigits(str1));

10.getEnvironmentVar

setEnvironmentVar

//獲得kettle系統變數的值

Alert(getEnvironmentVar("user.dir"));

Alert(getEnvironmentVar("user.name"));

//設定系統全域性變數

var strVarName="setEnvTest";

var strVarValue="123456";

Alert(getEnvironmentVar(strVarName));

setEnvironmentVar(strVarName,strVarValue);

Alert(getEnvironmentVar(strVarName));

strVarValue="654321";

setEnvironmentVar(strVarName,strVarValue);

Alert(getEnvironmentVar(strVarName));

11.getProcessCount

//返回當前處理行數

// 1: String - The Pentaho/Kettle Type:

// u - Lines Update

// i - Lines Insert

// w - Lines Write

// r - Lines Read

// o - Lines Output

Alert(getProcessCount("i"));

Alert(getProcessCount("o"));

12.getTransformationName

//返回當前js步驟名稱，如果在轉換中執行加上轉換的名字

var xTranName = getTransformationName();

Alert(xTranName);

13.setVariable

getVariable

//設定kettle變數

var strVarName="getVariableTest";

var strVarValue="123456";

// 1: String - The name of the variable to set.

// 2: Variable - The value which should be assigned

// 3: Type - "s"ystem, "r"oot, "p"arent, "g"randparent. Upto which

// level the variable is set.

setVariable(strVarName,strVarValue, "r");

//獲取kettle變數，如果沒有顯示為空

Alert(getVariable("strVarName", ""));

14.Print

Println

//在結果中打印出這個字串

var str = "Hello World!";

print(str);

//加一個換行

Println(str);

15.resolveIP

//轉換為一個數字IP地址(x.x.x.x)作為字串返回(不知道怎麼用)

Alert(resolveIP("127.0.0.1","IP"));

16.sendMail

//把電子郵件傳送到指定的地址

// sendMail(var, var, var, var, var);

// 1: String - SMTP-Server

// 2: String - The Address from which the mail shoud be send

// 3: String - The Address to which the mail should be send.

// For more Recipient's, please provide a list seperated by ','

// 4: String - Subject of the Mail

// 5: String - The Message Text of the mail.

var xSMTP="Your SMTP Server";

var xSender = "Sender eMail";

var xRecipients = "Recipient1,Recipient2,...";

var xSubject = "Hello World!";

var xMessage = "This is the message";

sendMail(xSMTP,xSender,xRecipients,xSubject,xMessage);

17.writeToLog

//寫一個字串到kettle日誌裡

// writeToLog(var);

// 1: String - The Message which should be written to

// the Kettle Debug Log

// writeToLog(var,var);

// 1: String - The Type of the Log

// d - Debug

// l - Detailed

// e - Error

// m - Minimal

// r - RowLevel

// 2: String - The Message which should be written to

// the Kettle Log

writeToLog("Hello World!");

writeToLog("r", "Hello World!");

六，File Function

1.copyFile

//複製一個檔案

// copyFile(var1,var2,var3);

// 1: String - The file to copy with Path.

// 2: String - The destination filename with Path.

// 3: Boolean- Overwrite destination file if exist.

var sourcefile="‪C:/Users/LiHan/Desktop/abc.txt";

var destinationfile="D:/abc.txt";

copyFile(sourcefile,destinationfile,true);

2.createFolder

//在指定路徑建立一個資料夾

var strFolder = "‪C:/Users/LiHan/Desktop/abcd";

createFolder(strFolder);

3.deletFile

//刪除指定路徑的檔案

var strFile = "‪C:/Users/LiHan/Desktop/abc.txt";

deletFile(strFile);

4.fileExists

//判斷檔案是否存在

var strFile = "‪C:/Users/LiHan/Desktop/檔案路徑.xlsx";

Alert(fileExists(strFile));

5.getFileExtension

//返回檔案型別