JAVA常用超类

java 代码

package com.wide.cabaret.dao;

import com.wide.cabaret.consts.Consts;
import com.wide.cabaret.utils.DataConn;
import com.wide.cabaret.utils.Html;
import com.wide.cabaret.utils.Utils;
import java.io.PrintStream;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;

public class BaseDao extends DataConn{
  Html html = new Html();
  Utils utils = new Utils();
  Consts consts = new Consts();
  public BaseDao(){
    super();
  }
  /**
   * 單條寫入訊息
   * @param sql String
   * @return int
   */
  public int addData(String sql){
    int retint = consts.DATA_ADD_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      stmt.executeUpdate(sql);
      //this.printBug("建立訊息", sql);
      retint = consts.DATA_ADD_SUCCEED_STATE;
    } catch (Exception ex){
      ex.printStackTrace();
    } finally{
      this.freeCon(con, stmt);
    }
    return retint;
  }
  /**
   * 批量寫入新訊息
   * @param sql String[]
   * @return int
   */
  public int addData(String sql[]){
    int retint = consts.DATA_ADD_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      for (int i=0;i
        stmt.executeUpdate(sql[i]);
      }
      //this.printBug("建立訊息", sql);
      retint = consts.DATA_ADD_SUCCEED_STATE;
    } catch (Exception ex){
      ex.printStackTrace();
    } finally{
      this.freeCon(con, stmt);
    }
    return retint;
  }
  /**
   * 寫入符閤條件的新訊息
   * @param sqla String
   * @param sqlb String
   * @return int
   */
  public int addData(String sqla, String sqlb){
    int retint = consts.DATA_ADD_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      rs=stmt.executeQuery(sqla);
      //this.printBug("條件查詢", sqla);
      if (!rs.next()){
        stmt.executeUpdate(sqlb);
        //this.printBug("新增訊息", sqlb);
        retint = consts.DATA_ADD_SUCCEED_STATE;
      } else{
        retint = consts.DATA_ADD_CONDITION_ERROR_STATE;
      }
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt, rs);
    }
    return retint;
  }
  /**
   * 根據批量條件批量寫入訊息
   * @param sqla String[]
   * @param sqlb String[]
   * @return int
   */
  public int addData(String sqla[],String sqlb[]){
    int retint = consts.DATA_ADD_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      for(int i=0;i
        rs=stmt.executeQuery(sqla[i]);
        //this.printBug("條件查詢", sqla[i]);
        if(!rs.next()){
          stmt.executeUpdate(sqlb[i]);
          //this.printBug("新增訊息", sqlb[i]);
          retint = consts.DATA_ADD_SUCCEED_STATE;
        }else{
          retint = consts.DATA_ADD_CONDITION_ERROR_STATE;
        }
      }
    } catch (Exception ex){
      ex.printStackTrace();
    } finally{
      this.freeCon(con, stmt);
    }
    return retint;
  }
  /**
   * 單條修改訊息
   * @param sql String
   * @return int
   */
  public int editData(String sql){
    int retint = consts.DATA_EDIT_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      stmt.executeUpdate(sql);
      //this.printBug("修改訊息", sql);
      retint = consts.DATA_EDIT_SUCCEED_STATE;
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt);
    }
    return retint;
  }
  /**
   * 批量脩改訊息
   * @param sql String[]
   * @return int
   */
  public int editData(String sql[]){
    int retint = consts.DATA_EDIT_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      for (int i=0;i
        stmt.executeUpdate(sql[i]);
      }
      //this.printBug("修改訊息", sql);
      retint = consts.DATA_EDIT_SUCCEED_STATE;
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt);
    }
    return retint;
  }
  /**
   * 脩改符閤條件后的訊息
   * @param sqla String
   * @param sqlb String
   * @return int
   */
  public int editData(String sqla, String sqlb){
    int retint = consts.DATA_EDIT_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      rs=stmt.executeQuery(sqla);
      //this.printBug("條件查詢", sqla);
      if (!rs.next()){
        stmt.executeUpdate(sqlb);
        //this.printBug("修改訊息", sqlb);
        retint = consts.DATA_EDIT_SUCCEED_STATE;
      } else{
        retint = consts.DATA_EDIT_CONDITION_ERROR_STATE;
      }
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt, rs);
    }
    return retint;
  }
  /**
   * 根據批量條件批量修改訊息
   * @param sqla String[]
   * @param sqlb String[]
   * @return int
   */
  public int editData(String sqla[], String sqlb[]){
    int retint = consts.DATA_EDIT_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      for(int i=0;i
        rs=stmt.executeQuery(sqla[i]);
        //this.printBug("條件查詢", sqla[i]);
        if(!rs.next()){
          stmt.executeUpdate(sqlb[i]);
          //this.printBug("編輯訊息", sqlb[i]);
          retint = consts.DATA_EDIT_SUCCEED_STATE;
        }else{
          retint = consts.DATA_EDIT_CONDITION_ERROR_STATE;
        }
      }
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt, rs);
    }
    return retint;
  }

  /**
   * 單條刪除訊息
   * @param sql String
   * @return int
   */
  public int delData(String sql){
    int retint = consts.DATA_DEL_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      stmt.executeUpdate(sql);
      //this.printBug("刪除訊息", sql);
      retint = consts.DATA_DEL_SUCCEED_STATE;
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt);
    }
    return retint;
  }
  /**
   * 刪除數據訊息
   * @param sql String[]
   * @return int
   */
  public int delData(String sql[]){
    int retint = consts.DATA_DEL_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      for (int i=0;i
        stmt.executeUpdate(sql[i]);
      }
      //this.printBug("刪除訊息", sql);
      retint = consts.DATA_DEL_SUCCEED_STATE;
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt);
    }
    return retint;
  }
  /**
   * 刪除符閤條件后的數據訊息
   * @param sqla String
   * @param sqlb String
   * @return int
   */
  public int delData(String sqla, String sqlb){
    int retint = consts.DATA_DEL_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      rs=stmt.executeQuery(sqla);
      //this.printBug("條件查詢", sqla);
      if (rs.next()){
        stmt.executeUpdate(sqlb);
        //this.printBug("刪除訊息", sqlb);
        retint = consts.DATA_DEL_SUCCEED_STATE;
      } else{
        retint = consts.DATA_DEL_CONDITION_ERROR_STATE;
      }
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt, rs);
    }
    return retint;
  }
  /**
   * 根據批量條件批量刪除訊息
   * @param sqla String[]
   * @param sqlb String[]
   * @return int
   */
  public int delData(String sqla[], String sqlb[]){
    int retint = consts.DATA_DEL_ERROR_STATE;
    Connection con=null;
    Statement stmt=null;
    ResultSet rs=null;
    try{
      con=this.getCon();
      stmt=con.createStatement();
      for(int i=0;i
        rs=stmt.executeQuery(sqla[i]);
        //this.printBug("條件查詢", sqla[i]);
        if(!rs.next()){
          stmt.executeUpdate(sqlb[i]);
          //this.printBug("刪除訊息", sqlb[i]);
          retint = consts.DATA_DEL_SUCCEED_STATE;
        }else{
          retint = consts.DATA_DEL_CONDITION_ERROR_STATE;
        }
      }
    } catch (Exception ex){
      System.err.println(ex.getMessage());
    } finally{
      this.freeCon(con, stmt, rs);
    }
    return retint;
  }


  /**
   * 打印單條錯誤訊息
   * @param str String
   * @param sql String
   */
  public void printBug(String str, String sql){
    System.out.println("---------------------------------------------");
    System.out.println("<=========["+str+"]->打印調試訊息開始=========>");
    System.out.println("*");
    System.out.println("SQL==>"+sql+"");
    System.out.println("*");
    System.out.println("<=========["+str+"]->打印調試訊息結束=========>");
    System.out.println("---------------------------------------------");
  }

  /**
   * 批量打印錯誤訊息
   * @param str String
   * @param sql String[]
   */
  public void printBug(String str, String sql[]){
    System.out.println("---------------------------------------------");
    System.out.println("<=========["+str+"]->打印調試訊息開始=========>");
    for (int i=0;i
      System.out.println("*");
      System.out.println("SQL-("+i+")==>"+sql[i]+"");
      System.out.println("*");
    }
    System.out.println("<=========["+str+"]->打印調試訊息結束=========>");
    System.out.println("---------------------------------------------");
  }
}