ResultSet zwrs2 = statement.executeQuery(sql);
while(zwrs2.next()){
outputDate(zwrs2);
}
public void outputDate(ResultSet zwrs2){
ResultSet dbrs = statement.executeQuery(sql);
while(dbrs.next()){
double value = zwrs2.getDouble(db_col);//字段名,当执行到其中一个字段时报错误
}
}
java.sql.SQLException: ResultSet is closed
这与close()有什么关系,我实在找不出什么原因????