Hibernate Servlet仅在部署后从数据库返回一次数据

我正在构建一个web门户，我正在使用Hibernate访问MySQL，并将获取的数据推送到JSP以表格形式打印出来。我正在使用Tomcat进行servlet部署。我的servlet必须进行3次HQL查询，然后将检索到的数据推送到JSP。部署servlet后，第一次使用HTML表单进行查询时，它工作正常。此外，在Eclipse控制台中，我可以看到正在执行的所有3个HQL查询。但是，当我再次尝试进行查询时，即使是上次从HTML表单进行的相同查询，我也不会在JSP页面上获得任何数据（我试图填充的表只包含零）。在检查Eclipse控制台时，我发现只执行了第一个HQL查询，没有出现任何其他查询，甚至没有错误消息。如果我重新启动Tomcat，或者只是重新部署servlet，它可以工作，但只能再次工作。请帮忙

流动就像- HTML表单->Servlet->JSP

         String major,date,minor,ip;
         double[][][] transactionTime = new double[2][50][10];
         int[] testCaseId = new int[10];
         String[] activityName = new String[10];
         major=req.getParameter("major");
         date=req.getParameter("date");
         minor=req.getParameter("minor");
         ip=req.getParameter("ip");
         String testCaseName=req.getParameter("testCaseName");
         Session session = null;


      try{

      SessionFactory sessionFactory = new 

    Configuration().configure()
    .buildSessionFactory();
      session =sessionFactory.openSession();

      //Create Select Clause HQL


         String SQL_QUERY2 ="Select testCases.activityName,testCases.testCaseID from TestCases testCases where testCases.testcaseName like \'" + testCaseName + "\'";
         Query query2 = session.createQuery(SQL_QUERY2);
         for(Iterator it2=query2.iterate();it2.hasNext();ctr2++)
              {
              Object[] act = (Object[]) it2.next();
              activityName[ctr2]=(String) act[0];
              testCaseId[ctr2] = (Integer) act[1];
              }


        for(int j=0;j<ctr2;j++){
            ctr=0;
         String SQL_QUERY3 ="Select tran.transactionTime from Transactions tran where tran.samples.builds.buildMajorVersion like " + major + " and tran.samples.builds.buildMinorVersion like " + minor + " and tran.samples.runDate like \'" + date + "\' and tran.testCases.testCaseID like " + testCaseId[j] + " and tran.samples.testbeds.server.ipv4Address like \'" + ip + "\'";
         Query query3 = session.createQuery(SQL_QUERY3);
         for(Iterator it3=query3.iterate();it3.hasNext();ctr++)
              {
              Object time = (Object) it3.next();
              transactionTime[0][j][ctr]=(Double) time;
              int precision = 100;
              transactionTime[0][j][ctr] = Math.floor(transactionTime[0][j][ctr]*precision+0.5)/precision;
              }
        }



        for(int j=0;j<ctr2;j++){
            ctr3=0;
         String SQL_QUERY5 ="Select tran.transactionTime from Transactions tran where tran.samples.builds.buildMajorVersion like " + major + " and tran.samples.builds.buildMinorVersion like " + minor + " and tran.samples.baseline=1";
         Query query5 = session.createQuery(SQL_QUERY5);
         for(Iterator it5=query5.iterate();it5.hasNext();ctr3++)
              {
              Object time = (Object) it5.next();
              transactionTime[1][j][ctr3]=(Double) time;
              int precision = 100;
              transactionTime[1][j][ctr3] = Math.floor(transactionTime[1][j][ctr3]*precision+0.5)/precision;
              }
        }





 session.close();
      }
      catch(Exception e){
          System.out.println(e.getMessage());
      }
      finally{

      }







    req.setAttribute("major",major);
    req.setAttribute("minor",minor);
    req.setAttribute("date",date);
    req.setAttribute("ip",ip);
    req.setAttribute("testCaseName",testCaseName);
    req.setAttribute("transactionTime", transactionTime);
    req.setAttribute("activityName", activityName);
    req.setAttribute("sampleNumBase", ctr3);
    req.setAttribute("sampleNumRun", ctr);
      req.getRequestDispatcher("/WEB-INF/src/BaselineRawData.jsp").forward(req, res);  
 }

在后续运行和不成功运行时Eclipse中的控制台输出

Hibernate: 
    select
        testcases0_.activityName as col_0_0_,
        testcases0_.testCaseID as col_1_0_ 
    from
        TestCases testcases0_ 
    where
        testcases0_.testcaseName like 'Deploy 200 tunings on 10 devices with 0 tunings'
10

哈迪克说

ctr2似乎有问题。因为你的循环迭代就是基于这个。它在哪里初始化

问题是
ctr2
和
ctr
在d servlet code之外声明和初始化
粘贴servlet的代码段。如果刷新HTMl页面，然后再次提交表单，会发生什么情况。同样，没有结果。因为我使用GET提交数据，所以只需重新加载页面就可以重新加载数据。但这都不起作用，重新提交HTML表单签出也不会在后续表单提交时获得值。请尝试比以前新的值。是否调试了它？它是否进入servlet内部？
Hibernate: 
    select
        testcases0_.activityName as col_0_0_,
        testcases0_.testCaseID as col_1_0_ 
    from
        TestCases testcases0_ 
    where
        testcases0_.testcaseName like 'Deploy 200 tunings on 10 devices with 0 tunings'
10