此问题在1个月前或许已经接触，单是一直木有怎么用到，就被耽搁至今；问题的解决要来源于网络，其实我还想说问题的解决更多的是要靠我们自己的思想，不过多的言情，我们接下来直接进入主题吧！
环境：kettle-spoon 4.2.0,oracle11g，myeclipse6.5，sqlserver
前提：在kettle图形界面spoon里面已经做好了一个ktr转换模型，此时我的ktr信息如下图：
Step1：在myeclipse创建project，导入kettle集成所需要的包
Step2:重点解析与code源码
//定义ktr名字
private static String transName = "test1";
//初始化kettle环境
KettleEnvironment.init();
//创建资源库对象，此时的对象还是一个空对象
KettleDatabaseRepository repository = new KettleDatabaseRepository();
//创建资源库数据库对象，类似我们在spoon里面创建资源库
DatabaseMeta dataMeta =
new DatabaseMeta("enfo_bi","Oracle","Native","ip","sid","port","username","password");
//资源库元对象,名称参数，id参数，描述等可以随便定义
KettleDatabaseRepositoryMeta kettleDatabaseMeta =
new KettleDatabaseRepositoryMeta("enfo_bi", "enfo_bi", "king description",dataMeta);
//给资源库赋值
repository.init(kettleDatabaseMeta);
//连接资源库
repository.connect("admin","admin");
//根据变量查找到模型所在的目录对象
RepositoryDirectoryInterface directory = repository.findDirectory("/enfo_worker/wxj");
//创建ktr元对象
TransMeta transformationMeta = ((Repository) repository).loadTransformation(transName, directory, null, true, null ) ;
//创建ktr
Trans trans = new Trans(transformationMeta);
//执行ktr
trans.execute(null);
//等待执行完毕
trans.waitUntilFinished();
上面的两个步骤才可以确定是资源库中的那个路径下的ktr和我们用命令执行一样的-dir ,-tran -job
附上源码：
package kettle;
import org.pentaho.di.core.KettleEnvironment;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.repository.RepositoryDirectoryInterface;
import org.pentaho.di.repository.kdr.KettleDatabaseRepository;
import org.pentaho.di.repository.kdr.KettleDatabaseRepositoryMeta;
import org.pentaho.di.trans.Trans;
import org.pentaho.di.trans.TransMeta;/**
*
Title: java调用kettle4.2数据库型资料库中的转换
*
Description:
*
Copyright: Copyright ()
*/
public classExecuteDataBaseRepTran {private static String transName = "test1";public static voidmain(String[] args) {try{//初始化kettle环境
KettleEnvironment.init();//创建资源库对象，此时的对象还是一个空对象
KettleDatabaseRepository repository = newKettleDatabaseRepository();//创建资源库数据库对象，类似我们在spoon里面创建资源库
DatabaseMeta dataMeta =
new DatabaseMeta("enfo_bi","Oracle","Native","ip","sid","port","username","password");//资源库元对象,名称参数，id参数，描述等可以随便定义
KettleDatabaseRepositoryMeta kettleDatabaseMeta =
new KettleDatabaseRepositoryMeta("enfo_bi", "enfo_bi", "king description",dataMeta);//给资源库赋值
repository.init(kettleDatabaseMeta);//连接资源库
repository.connect("admin","admin");//根据变量查找到模型所在的目录对象,此步骤很重要。
RepositoryDirectoryInterface directory = repository.findDirectory("/enfo_worker/wxj");//创建ktr元对象
TransMeta transformationMeta = ((Repository) repository).loadTransformation(transName, directory, null, true, null) ;//创建ktr
Trans trans = newTrans(transformationMeta);//执行ktr
trans.execute(null);//等待执行完毕
trans.waitUntilFinished();if(trans.getErrors()>0)
{
System.err.println("Transformation run Failure!");
}else{
System.out.println("Transformation run successfully!");
}
}catch(KettleException e) {
e.printStackTrace();
}
}
}
