Java SQLException:此结果集已关闭
我试图比较三个Java SQLException:此结果集已关闭,java,postgresql,Java,Postgresql,我试图比较三个Resultset中的值,但我试图运行它时似乎出现了异常。 谁能帮我弄清楚哪里出了问题。我将感谢任何帮助。下面是引发错误的代码段: java.sql.Connection connDB = null; java.lang.Object[] reconciledPaymentDetails = null; java.util.Vector shiftsVector = new java.util.Vector(1, 1); String stat
Resultset
中的值,但我试图运行它时似乎出现了异常。
谁能帮我弄清楚哪里出了问题。我将感谢任何帮助。下面是引发错误的代码段:
java.sql.Connection connDB = null;
java.lang.Object[] reconciledPaymentDetails = null;
java.util.Vector shiftsVector = new java.util.Vector(1, 1);
String status = "";
try {
Class.forName("org.postgresql.Driver");
}
catch (ClassNotFoundException ex) {
Logger.getLogger(DBConnection.class.getName()).log(Level.SEVERE, null, ex);
}
try {
connDB = DriverManager.getConnection("jdbc:postgresql://" + hostName + ":" + portNumber
+ "/" + dbName, userName, password);
System.out.println("Connection established : [" + connDB.toString() + "]");
java.sql.Statement pstmt = connDB.createStatement();
java.sql.Statement pstmtShifts = connDB.createStatement();
java.sql.ResultSet rset = pstmt.executeQuery("SELECT DISTINCT payment_mode,
transaction_type, credit FROM ac_cash_collection WHERE shift_no = '" + shiftNumber +
"'");
while (rset.next()) {
java.sql.ResultSet rsetShifts = pstmtShifts.executeQuery("SELECT DISTINCT amount,
shift_amount FROM ac_shift_collections WHERE shift_no = '" + shiftNumber + "' AND
pay_mode ilike '"+rset.getString(1) +"'");
while (rsetShifts.next()) {
java.sql.ResultSet rset2 = pstmt.executeQuery("select debit from ac_cash_book where
shift_no='"+shiftNumber+"'");
while (rset2.next()){
double debit =rset2.getDouble("debit");
if((rset2.getDouble("debit")<=0 ))
status = "no_banked";
else if((rset2.getDouble("debit")==rsetShifts.getDouble("amount")) &&
(rsetShifts.getDouble("amount"))< rsetShifts.getDouble("shift_amount"))
status= "BntClosed";
else if (rset2.getDouble(1)==rsetShifts.getDouble("shift_amount"))
Status ="bClosed";
shiftsVector.addElement(rset.getString(1)+":"+rsetShifts.getString(1)+":"+status);
}
}
}
java.sql.Connection connDB=null;
java.lang.Object[]ReconciredPaymentDetails=null;
java.util.Vector shiftsVector=新的java.util.Vector(1,1);
字符串状态=”;
试一试{
Class.forName(“org.postgresql.Driver”);
}
捕获(ClassNotFoundException ex){
Logger.getLogger(DBConnection.class.getName()).log(Level.SEVERE,null,ex);
}
试一试{
connDB=DriverManager.getConnection(“jdbc:postgresql://”+hostName+:“+portNumber
+“/”+dbName、用户名、密码);
System.out.println(“已建立连接:[“+connDB.toString()+”]);
java.sql.Statement pstmt=connDB.createStatement();
java.sql.Statement pstmshifts=connDB.createStatement();
java.sql.ResultSet rset=pstmt.executeQuery(“选择不同的付款模式,
交易类型,从ac_现金_收款贷记,其中班次号='“+班次号+
"'");
while(rset.next()){
java.sql.ResultSet rsetShifts=pstmshifts.executeQuery(“选择不同金额,
来自ac_shift_集合的shift_金额,其中shift_编号=“+shiftNumber+”,以及
pay_mode i如“+rset.getString(1)+””;
while(rsetshift.next()){
java.sql.ResultSet rset2=pstmt.executeQuery(“从现金簿中选择借方,其中
移位号=“+shiftNumber+”);
while(rset2.next()){
双重借记=rset2.getDouble(“借记”);
如果((rset2.getDouble(“借方”)
第二个调用释放第一个调用生成的资源,这就是结果集关闭的原因
java.sql.ResultSet rset = pstmt.executeQuery("SELECT DISTINCT payment_mode, transaction_type, credit FROM ac_cash_collection WHERE shift_no = '" + shiftNumber + "'");
java.sql.ResultSet rset2 = pstmt.executeQuery("select debit from ac_cash_book where shift_no='"+shiftNumber+"'");