mock数据。根据表中一天的数据模拟其他日期的数据
2024-08-30 13:04:52
package test;
import java.sql.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.Date; public class JDBCTest { public static void main(String[] args) { // 驱动程序名
String driver = "com.mysql.jdbc.Driver"; // URL指向要访问的数据库名
String url = "jdbc:mysql://172.33.0.190:3306/report"; // MySQL配置时的用户名
String user = "root"; // MySQL配置时的密码
String password = "123456"; try {
Class.forName(driver); Connection conn = DriverManager.getConnection(url, user, password); if (!conn.isClosed())
System.out.println("Succeeded connecting to the Database!"); Statement statement = conn.createStatement(); // String showTables = "show tables";
//
// ResultSet rs = statement.executeQuery(showTables);
//
// System.out.println("-----------------");
ResultSet rs=null; List tableLists = new ArrayList();
//tableLists.add("rpt_ci_cinema_summary_dt");
//tableLists.add("bm_ykfp_cinema_film_hall_ticket_dt");
//tableLists.add("rpt_fm_cinema_film_ticket_dt");
//tableLists.add("rpt_ci_cinema_hall_ticket_dt");
//tableLists.add("rpt_ci_cinema_payment_ticket_dt");
//tableLists.add("rpt_shop_cinema_goods_trade_dt");
//tableLists.add("rpt_shop_cinema_goods_chanl_trade_dt"); //tableLists.add("rpt_shop_cinema_goods_item_trade_dt");
//tableLists.add("rpt_shop_cinema_goods_combo_item_trade_dt");
//tableLists.add("rpt_fm_cinema_film_summary_dt");
tableLists.add("rpt_memb_cinema_membcard_addmoney_detail");
System.out.println(tableLists); /*while (rs.next()) {
String name = rs.getString(1);
if (name.startsWith("rpt") && name.endsWith("dt") && name.indexOf("_tr_") == -1)
tableLists.add(name);
}*/ // list2.stream().forEach(key -> System.out.println(key));
tableLists.stream().forEach(System.out::println); System.out.println("-----------------"); List dateLists = new ArrayList(); Date d1 = new SimpleDateFormat("yyyyMMdd").parse("20150101");//定义起始日期
Date d2 = new SimpleDateFormat("yyyyMMdd").parse("20160801");//定义结束日期
Calendar dd = Calendar.getInstance();//定义日期实例
dd.setTime(d1);//设置日期起始时间
while(dd.getTime().before(d2)){//判断是否到结束日期
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
java.lang.String str = sdf.format(dd.getTime());
System.out.println(str);//输出日期结果
dd.add(Calendar.DATE, 1);//进行当前日期加1
dateLists.add(str);
}
/*for (int i = 20160101; i < 20160132; i++) {
dateLists.add(String.valueOf(i)); }*/
System.out.println("-----------------" + dateLists.size());
dateLists.stream().forEach(System.out::println); for (int k = 0; k <dateLists.size(); k++) {
String dateStr=(String)dateLists.get(k);
System.out.println("----------" + dateStr); for (int j = 0; j < tableLists.size(); j++) { String tableName = (String) tableLists.get(j); String descTable = "desc " + tableName; rs = statement.executeQuery(descTable); List columnNameList = new ArrayList(); while (rs.next()) {
String name = rs.getString(1);
if (name != null)
columnNameList.add(name);
}
System.out.println("-----------------"); // String sqlSelect = "select * from
// "+"rpt_ci_cinema_chanl_new_trade_dt";
// String sqlInsert = "insert into student (Name,Sex,Age)
// values(?,?,?)"; String insertTable = "replace into" + " " + tableName + " " + "( ";
int columnNameSize = columnNameList.size();
for (int i = 0; i < columnNameSize; i++) {
insertTable += columnNameList.get(i);
if (i != columnNameSize - 1)
insertTable += ",";
}
insertTable += " )"; // ******Need change the date "20160502" to dateStr
insertTable += " select '"+ dateStr +"' AS BIZDATE,"; for (int i = 1; i < columnNameSize; i++) {
insertTable += columnNameList.get(i);
if (i != columnNameSize - 1)
insertTable += ",";
} insertTable += " from " + tableName + " where biz_date='20160601' "+";"; System.out.println("" + insertTable); statement.execute(insertTable); System.out.println("--####Finished execute insert into table : " + tableName);
} } rs.close();
conn.close(); } catch (ClassNotFoundException e) { System.out.println("Sorry,can`t find the Driver!");
e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } finally{
System.out.println("********************All Completed*****************");
}
}
}
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