web应用集成kettle

package com.kettle3.service;

import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.trans.StepLoader;
import org.pentaho.di.trans.Trans;
import org.pentaho.di.trans.Transmeta;

public class AutoKettleService {
	public void executeKettle（） throws KettleException {
		System.out.println（“执行kettle数据抓取任务开始！“）;
		try {
			StepLoader.init（）;
		} catch （Exception ex） {
			ex.printStackTrace（）;
		}
		String filePath = getKettleFilePath（）;
		System.out.println（“获取文件路径: “+filePath）;
		Transmeta meta = new Transmeta（filePath）;
		Trans trans = new Trans（meta）;
		trans.execute（null）;
		trans.waitUntilFinished（）;
		trans.endProcessing（“end“）;
		System.out.println（“执行kettle数据抓取任务结束！“）;
	}
	/**
	 * 获取WEB-INF目录下面kettle_demo_test.ktr文件的路径
	 * @return
	 */
	public static String getKettleFilePath（）
	{
		String path=Thread.currentThread（）.getContextClassLoader（）.getResource（““）.toString（）;
		path=path.replace（‘/‘ ‘\‘）; // 将/换成
		path=path.replace（“file:“ ““）; //去掉file:
		path=path.replace（“classes\“ ““）; //去掉class
		path=path.substring（1）; //去掉第一个如 D:JavaWeb...
		path+=“kettle\kettle_demo_test.ktr“;
		return path;
	}
	
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-12-05 15:26  kettle3
     文件        2655  2015-12-05 16:34  kettle3.classpath
     文件        1040  2015-12-02 16:01  kettle3.project
     目录           0  2015-12-05 15:10  kettle3.settings
     文件         503  2015-12-02 16:01  kettle3.settings.jsdtscope
     文件         395  2015-12-02 16:00  kettle3.settingsorg.eclipse.jdt.core.prefs
     文件         451  2015-12-02 16:01  kettle3.settingsorg.eclipse.wst.common.component
     文件         345  2015-12-02 16:01  kettle3.settingsorg.eclipse.wst.common.project.facet.core.xml
     文件          49  2015-12-02 16:01  kettle3.settingsorg.eclipse.wst.jsdt.ui.superType.container
     文件           6  2015-12-02 16:01  kettle3.settingsorg.eclipse.wst.jsdt.ui.superType.name
     目录           0  2015-12-05 17:29  kettle3WebContent
     目录           0  2015-12-05 15:10  kettle3WebContentmeta-INF
     文件          39  2015-12-02 16:01  kettle3WebContentmeta-INFMANIFEST.MF
     目录           0  2015-12-05 17:14  kettle3WebContentWEB-INF
     文件        1738  2015-12-05 16:05  kettle3WebContentWEB-INFapplicationContext.xml
     目录           0  2015-12-05 16:34  kettle3WebContentWEB-INFclasses
     目录           0  2015-12-05 16:34  kettle3WebContentWEB-INFclassescom
     目录           0  2015-12-05 16:34  kettle3WebContentWEB-INFclassescomkettle3
     目录           0  2015-12-05 16:34  kettle3WebContentWEB-INFclassescomkettle3service
     文件        2326  2015-12-05 17:24  kettle3WebContentWEB-INFclassescomkettle3serviceAutoKettleService.class
     目录           0  2015-12-05 17:14  kettle3WebContentWEB-INFkettle
     文件        4794  2015-12-05 17:14  kettle3WebContentWEB-INFkettlekettle_demo_test.ktr
     目录           0  2015-12-05 16:34  kettle3WebContentWEB-INFlib
     文件      481534  2015-12-02 16:42  kettle3WebContentWEB-INFlibapache-logging-log4j.jar
     文件      188671  2015-12-02 16:42  kettle3WebContentWEB-INFlibcommons-beanutils-1.7.0.jar
     文件      559366  2015-12-02 16:42  kettle3WebContentWEB-INFlibcommons-collections-3.1.jar
     文件      143602  2015-12-02 16:42  kettle3WebContentWEB-INFlibcommons-digester-1.8.jar
     文件       52915  2015-12-02 16:42  kettle3WebContentWEB-INFlibcommons-logging-1.1.jar
     文件      409795  2015-12-02 16:42  kettle3WebContentWEB-INFlibcommons-vfs-2.0-20090205.jar
     文件      285638  2015-12-05 16:07  kettle3WebContentWEB-INFlibjtds-1.2.jar
     文件      330469  2015-12-02 16:42  kettle3WebContentWEB-INFlibkettle-core.jar
............此处省略23个文件信息