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Statement selectStatement = connection.createStatement();
ResultSet selectResultSet = selectStatement.executeQuery(query);
logger.info("sql query " + selectStatement.toString());
ResultSetMetaData rsmd = selectResultSet.getMetaData();
int columnsNumber = rsmd.getColumnCount();
String[] row = new String[columnsNumber];
int ctr = 0;
logger.info("Reading from database...");
while(selectResultSet.next())
{
for(int i=0;i<columnsNumber;i++){
row[i] = selectResultSet.getString(i+1);
}
System.out.println();
dataFromQuery.put(ctr++, row);
}
selectResultSet.close();
在从HashMap中读回时,它仅打印最后一行'n'次。HashMap被上一个值覆盖
thanx一吨.... –
你欢迎.... –