package com.sql;
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import java.sql.Connection;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Statement;
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import java.util.ArrayList;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import com.base.Com;
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/**
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* ´´½¨Êý¾Ý¿âÒÔ¼°±í¸ñ
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* @author lxw
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*
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*/
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public class Sql_Mysql
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{
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//--------------------------------------------------------------------------------------------//
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final public static String DB_MW_Motor = "`db_3.5mw_motor`"; //3.5mwʵʱÊý¾Ý¿â
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final public static String DB_MW_Motor_History = "`db_3.5mw_motor_history`"; //3.5mwÀúʷʵʱÊý¾Ý¿â
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final public static String DB_AppSys = "`db_app_sys`";
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//--------------------------------------------------------------------------------------------//
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public final static String AppSys_Table = DB_AppSys + ".`tb_app_sys`";
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public final static String Tb_MW_Motor_inf = DB_MW_Motor + ".`tb_3.5mw_motor_inf`";
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public final static String TB_RECTIFIER_POWER_RT = DB_MW_Motor + ".`tb_rectifier_power_rt`";
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public final static String TB_RECTIFIER_POWER_CONTROL = DB_MW_Motor + ".`tb_rectifier_power_control`";
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//--------------------------------------------------------------------------------------------//
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public final static String Tb_RECTIFIER_POWER_RealData = DB_MW_Motor_History + ".tb_rectifier_power_";
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//--------------------------------------------------------------------------------------------//
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public Logger logger = null;
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public Connection mysql_con;
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public Sql_Mysql(Connection conn)
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{
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mysql_con = conn;
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logger = LogManager.getLogger(this.getClass());
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}
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/*
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public static Connection getConnection() throws SQLException, java.lang.ClassNotFoundException{
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String url = "jdbc:mysql://192.168.48.128:3306/studentinfo";
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Class.forName("com.mysql.jdbc.Driver");
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String userName = "root";
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String password = "lmx8688139";
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Connection con = DriverManager.getConnection(url,userName,password);
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return con;
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}
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*/
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public void close_con()
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{
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try {
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mysql_con.close();
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} catch (SQLException e) {
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logger.error(e.toString(),e);
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}
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}
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//ʹÓÃdbÊý¾Ý¿â
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public void sqlMysqlUseDB(String db) throws SQLException
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{
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sqlMysqlExecute("use " + db);
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}
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/**
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* ¼ì²étb±íÊÇ·ñ´æÔÚ
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* @param tb
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* @return
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* @throws SQLException
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*/
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public boolean sqlMysqlCheckIfTableExist(String tb) throws SQLException
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{
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String sql_str = "SHOW TABLES LIKE '" + tb + "'";
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ResultSet res = sqlMysqlQuery(sql_str);
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boolean exist = false;
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while(res.next())
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{
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exist = true;
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break;
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}
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return exist;
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}
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//Ö´ÐÐsqlÓï¾ä
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public void sqlMysqlExecute(String sql_str) throws SQLException
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{
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Statement sql = mysql_con.createStatement();
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sql.setQueryTimeout(30);
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sql.execute(sql_str);
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}
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//ÔÚÊÂÎïÖÐÖ´ÐжàÌõsqlÓï¾ä
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public boolean makeManualCommit(ArrayList<String> al_sql_strs)
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{
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boolean exe_res = true;
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try {
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mysql_con.setAutoCommit(false);
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for(int n=0; n<al_sql_strs.size(); n++) {
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sqlMysqlExecute(al_sql_strs.get(n));
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}
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if(true == exe_res) {
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mysql_con.commit();
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}
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} catch (SQLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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exe_res = false;
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} finally {
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try {
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if(false == exe_res) {
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mysql_con.rollback();
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}
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mysql_con.setAutoCommit(true);
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} catch (SQLException e1) {
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// TODO Auto-generated catch block
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e1.printStackTrace();
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}
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}
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return exe_res;
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}
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//¸ù¾ÝsqlÓï¾äÖ´ÐÐsql²éѯÓï¾ä
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public ResultSet sqlMysqlQuery(String sql_str)
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{
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ResultSet res = null;
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try
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{
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Statement sql = mysql_con.createStatement();
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sql.setQueryTimeout(30);
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String query = sql_str;
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res = sql.executeQuery(query);
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}
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catch(SQLException ex)
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{
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System.err.println("SQLException:" + ex.getMessage());
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}
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return res;
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}
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//¸ù¾ÝsqlÓï¾äÖ´ÐÐsql¸üÐÂÓï¾ä
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public void sqlMysqlUpdate(String sql_str)
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{
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try
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{
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Statement sql = mysql_con.createStatement();
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sql.setQueryTimeout(30);
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String query = sql_str;
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sql.execute(query);
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}
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catch(SQLException ex)
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{
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System.out.println("SQLException:" + ex.getMessage());
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}
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}
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}
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