JPA_ユニットテストクラス

ユニットテストの时、面倒なのはいつも持続的な工场を创建して、まったく耐えられなくて、そこで、下のそれがあって、

/**
 * 
 * @author hesheng
 *	 ，   ，
 *   
 */
public abstract class BaseTestCase {
	protected EntityManagerFactory emf;
	protected EntityManager entityManager;
	protected static boolean isOpenDB = true;
	
	public boolean isOpenDB() {
		return isOpenDB;
	}
	public void setOpenDB(boolean isOpenDB) {
		this.isOpenDB = isOpenDB;
	}
	@SuppressWarnings("unchecked")
	public void beginTx() {
		emf = Persistence.createEntityManagerFactory("UnitName");
		entityManager = emf.createEntityManager();
		System.out.println("em: " + entityManager);
		entityManager.getTransaction().begin();
	}
	public abstract void test();
	
	public void endTx() {
		entityManager.getTransaction().commit();
		entityManager.close();
		emf.close();
	}
	public void runTest(){
		if(isOpenDB){
			beginTx();
		}
		test();
		if(isOpenDB){
			endTx();
		}
		
		
	}
}

 
具体的な実装:

public class UnitTest extends BaseTestCase {
	@Override
	public void test() {
		//getLogResultSet();
		super.setOpenDB(false); //  JPQL  ， ， ， ， 
		testSql(null,null);
	}
	public String testSql(String logTimeStart,String logTimeEnd){
		String ql = "select  m.pageName,count(m) as count from table m  ";
		int count = 0;
		if (logTimeStart != null){
			//ql = ql + " and";
			count ++;
			ql = ql + " where m.createDate >= ?" + count;
		}
		if (logTimeEnd != null){
			ql = ql + " and";
			count ++;
			ql = ql + " m.createDate <= ?" + count;
		}
		ql = ql + " group by m.pageName";
		System.out.println("ql: "+ql);
		return ql;
	}
	
	public static void main(String[] args) {
		new PageViewCountActionTest().runTest();  //  ，in eclipse "run as Application"
	}