将结果集内容复制到arraylist并比较两个值

在下面的代码中，我将resultset内容复制到arraylist。 wile循环的第一部分，即while(RS.next())正在返回结果，但是当光标移动到下一个循环时，即while(SR.next())我得到“结果集已关闭”。请帮我解决我犯的错误。将结果集内容复制到arraylist并比较两个值

 String SSQ = "select DISTINCT S_NUMBER from OTG.S_R_VAL" + 

        " WHERE R_TS = (SELECT MAX(R_TS) FROM OTG.S_R_VAL) order by S_NUMBER"; 

       String SDS = "SELECT DISTINCT S_NUMBER FROM OTG.S_R_VAL AS STG WHERE S_NUMBER NOT IN" + 

          "(SELECT S_NO FROM OTG.R_VAL AS REV WHERE STG.S_NUMBER = REV.S_NO)"; 

       String SSR = "SELECT DISTINCT S_NO FROM OTG.R_VAL where S_NO != 'NULL' order by S_NO"; 

       String SSO = "Select O_UID from OTG.OPTY where C_S_NO IN" + 

      "(SELECT DISTINCT S_NUMBER FROM OTG.S_R_VAL AS STG WHERE S_NUMBER NOT IN(SELECT S_NO FROM OTG.R_VAL AS REV WHERE STG.S_NUMBER = REV.S_NO))"; 

       //Statement statement; 

      try { 

     connection = DatabaseConnection.getCon(); 

     statement = connection.createStatement(); 

     statement1 = connection.createStatement(); 

     statement2 = connection.createStatement(); 

     statement3 = connection.createStatement(); 

     statement4 = connection.createStatement(); 



     ResultSet RS = statement1.executeQuery(selectQuery); 

     ResultSet DS = statement2.executeQuery(Distinct_SiebelNo); 

     ResultSet SR = statement3.executeQuery(SiebelNo_Rev); 

     ResultSet SO = statement4.executeQuery(selected_OppId); 




     ArrayList<String> RSList = new ArrayList<String>(); 

     ArrayList<String> SRList = new ArrayList<String>(); 

    /* ResultSetMetaData resultSetMetaData = RS.getMetaData(); 

     int count = resultSetMetaData.getColumnCount();*/ 

    int count=1; 

     System.out.println("******count********"+count); 

     while(RS.next()) { 

      int i = 1; 

      count=1; 

      while(i < count) 

         { 

       RSList.add(RS.getString(i++)); 

        } 

      System.out.println(RS.getString("SIEBEL_NUMBER")); 


      RSList.add( RS.getString("SIEBEL_NUMBER")); 


     } 

    /* ResultSetMetaData resultSetMetaData1 = SR.getMetaData(); 

     int count1 = resultSetMetaData1.getColumnCount();*/ 

     int count1=1; 

     while(SR.next()) { 

      int i = 1; 

      while(i < count1) 

         { 

       SRList.add(SR.getString(i++)); 

        } 

      System.out.println(SR.getString("SIEBEL_NO")); 

      SRList.add( SR.getString("SIEBEL_NO")); 


     }SR.close(); 

    connection.commit(); 


} catch (SQLException e) { 

     // TODO Auto-generated catch block 

     e.printStackTrace(); 

    } 
    } 
} 
}

来源

2013-08-27 123HIS

第一结果集（RS）每个循环的逻辑是有缺陷的。

int count=1;//Count is being set to one 
    while(RS.next()) { 
     int i = 1;//i is being set to one 
     count=1;//count again set to one 
     while(i < count) //condition will always fail as one is never less than one 
     { 
      RSList.add(RS.getString(i++));//Code is never Reached 

     } 
     System.out.println(RS.getString("SIEBEL_NUMBER")); 


     RSList.add( RS.getString("SIEBEL_NUMBER")); 


    }

第二次不需要。只要使用此：

int count = 1; 
    while(RS.next()) { 
     RSList.add(RS.getString(count++)); 
     System.out.println(RS.getString("SIEBEL_NUMBER")); 
     RSList.add( RS.getString("SIEBEL_NUMBER")); 
    }

编辑

int count1=1; 
    while(SR.next()) { 
     SRList.add(SR.getString(count1++)); 
     System.out.println(SR.getString("SIEBEL_NO")); 
     SRList.add( SR.getString("SIEBEL_NO")); 
    }

编辑2：

for (String s : RSList) 
    for(String s1 : SRList) 
     if (s.equals(s1)) 
     //Do what you need

来源

2013-08-27 09:46:36 Aashray

嗨Aashray，我纠正了代码，因为你说的。我得到的第一个结果集的值，即“RS”现在如何获得第二个结果集的“SR”？请帮助 – 123HIS

我有添加了代码'SR'。 – Aashray

嗨Aashray，我包括上述解决方案，因为你提到。它的工作，现在如何比较这两个数组列表，并找到哪些值是相等的？请帮助，因为我是新来的Java 。 – 123HIS

您正在使用在第二回路（System.out.println线）

来源

2013-08-27 09:39:21 bwt

您好，我修正了在上面的代码。但我现在没有获得第二次循环内容。请帮助:-( – 123HIS

将结果集内容复制到arraylist并比较两个值

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