areadao.java

WAP PUSH后台源码,WAP PUSH后台源码

    ResultSet rs = null;
    int rowCount = 0;
    try {
      dbConnection = getDBConnection();
      stmt = dbConnection.createStatement();
      rs = stmt.executeQuery(sql);
      if ( rs.next() ) {
        rowCount = rs.getInt(1);
      }else{
        Debug.println(sql + "\n" + "ERROR in get row count!!");
        throw new SysException("ERROR in get row count!!");
      }
      return rowCount;
    } catch(SQLException e) {
      Debug.println(sql + "\n" + "SQLException while execute getRowCountBySql mothod :\n" + e);
      throw new SysException("SQLException while execute getRowCountBySql mothod :\n" + e);
    } finally {
      closeResultSet(rs);
      closeStatement(stmt);
      closeConnection(dbConnection);
    }
  }
  public static Collection queryAll() throws SysException {
    String sql = "SELECT * FROM WAP_AREA";
    return queryBySql(sql);
  }
  public static Collection queryAll(int beginRow, int endRow) throws SysException {
    String sql = "SELECT * FROM WAP_AREA";
    return queryBySql(sql, beginRow, endRow);
  }
  public static int getRowCountOfAll() throws SysException {
    String sql = "SELECT COUNT(*) FROM WAP_AREA";
    return getRowCountBySql(sql);
  }
  public static AreaModel toModel(Hashtable element) {
    AreaModel model = new AreaModel();
    model.setId(Integer.parseInt((String)element.get("id")));
    model.setAreaNumber((String)element.get("areaNumber"));
    model.setAreaName((String)element.get("areaName"));
    return model;
  }
  public static Collection allToModel(Collection coll) {
    Collection value = new ArrayList();
    Iterator it = coll.iterator();
    while (it.hasNext()) {
      value.add(toModel((Hashtable)it.next()));
    }
    return value;
  }
  public static int getSequenceNextValue() throws SysException {
    String sql = "SELECT * FROM WAP_SEQUENCE WHERE TABLE_NAME = 'WAP_AREA'";
    Connection dbConnection = null;
    Statement stmt = null;
    ResultSet rs = null;
    int lastValue = 1;
    try {
      dbConnection = getDBConnection();
      stmt = dbConnection.createStatement();
      rs = stmt.executeQuery(sql);
      if ( rs.next() ) {
        lastValue = rs.getInt("LAST_VALUE");
        int minValue = rs.getInt("MIN_VALUE");
        int maxValue = rs.getInt("MAX_VALUE");
        int incrementBy = rs.getInt("INCREMENT_BY");
        int cycle = rs.getInt("CYCLE");
        if (lastValue < 0) {
          Debug.println("id last value can't smaller than 0");
          throw new SysException("id last value can't smaller than 0");
        }
        if (minValue < 0) {
          Debug.println("id min value can't smaller than 0");
          throw new SysException("id min value can't smaller than 0");
        }
        if (maxValue < 0) {
          Debug.println("id max value can't smaller than 0");
          throw new SysException("id max value can't smaller than 0");
        }
        if (incrementBy < 1) {
          Debug.println("id increment value can't smaller than 1");
          throw new SysException("id increment value can't smaller than 1");
        }
        if (cycle != 0 && cycle != 1) {
          Debug.println("id cycle value error, it can be 0 or 1 only");
          throw new SysException("id cycle value error, it can be 0 or 1 only");
        }
        if (lastValue < minValue) {
          Debug.println("id value is " + lastValue + ": \n" + "id value can't smaller than min value");
          throw new SysException("id value can't smaller than min value");
        }
        if (minValue >= maxValue) {
          Debug.println("id max value must bigger than min value");
          throw new SysException("id max value must bigger than min value");
        }
        if (lastValue > maxValue) {
          if (cycle == 0) {
            Debug.println("id value is " + lastValue + ": \n" + "id value exceeds max value");
            throw new SysException("id value exceeds max value");
          } else {
            lastValue = minValue;
          }
        }
        sql = "UPDATE WAP_SEQUENCE SET LAST_VALUE = " + (lastValue + incrementBy) + " WHERE TABLE_NAME = 'WAP_AREA'";
        stmt.executeUpdate(sql);
      }else{
        sql = "INSERT INTO WAP_SEQUENCE (TABLE_NAME, LAST_VALUE, MIN_VALUE, MAX_VALUE, INCREMENT_BY, CYCLE) VALUES ('WAP_AREA', 2, 1, 999999999, 1, 1)";
        stmt.executeUpdate(sql);
      }
      return lastValue;
    } catch(SQLException e) {
      Debug.println(sql + "\n" + "SQLException while execute getRowCountBySql method :\n" + e);
      throw new SysException("SQLException while execute getRowCountBySql method :\n" + e);
    } finally {
      closeResultSet(rs);
      closeStatement(stmt);
      closeConnection(dbConnection);
    }
  }
  protected static String getInsertSQL(AreaModel model) {
    String sql = "";
    if (Database.dbType == DBType.ORACLE) {
      sql = "INSERT INTO WAP_AREA (ID, AREA_NUMBER, AREA_NAME) VALUES ("
          + model.getId() + ", '"
          + Function.writeDBEncode(model.getAreaNumber()) + "', '"
          + Function.writeDBEncode(model.getAreaName()) + "')";
    } else if (Database.dbType == DBType.SQLSERVER) {
      sql = "INSERT INTO WAP_AREA (ID, AREA_NUMBER, AREA_NAME) VALUES ("
          + model.getId() + ", '"
          + Function.writeDBEncode(model.getAreaNumber()) + "', '"
          + Function.writeDBEncode(model.getAreaName()) + "')";
    } else if (Database.dbType == DBType.MYSQL) {
      sql = "INSERT INTO WAP_AREA (ID, AREA_NUMBER, AREA_NAME) VALUES ("
          + model.getId() + ", '"
          + Function.writeDBEncode(model.getAreaNumber()) + "', '"
          + Function.writeDBEncode(model.getAreaName()) + "')";
    }
    return sql;
  }
  protected static String getUpdateSQL(AreaModel model) {
    String sql = "";
    if (Database.dbType == DBType.ORACLE) {
      sql = "UPDATE WAP_AREA SET AREA_NUMBER = '"
          + Function.writeDBEncode(model.getAreaNumber()) + "', AREA_NAME = '"
          + Function.writeDBEncode(model.getAreaName()) + "' WHERE ID = " + model.getId();
    } else if (Database.dbType == DBType.SQLSERVER) {
      sql = "UPDATE WAP_AREA SET AREA_NUMBER = '"
          + Function.writeDBEncode(model.getAreaNumber()) + "', AREA_NAME = '"
          + Function.writeDBEncode(model.getAreaName()) + "' WHERE ID = " + model.getId();
    } else if (Database.dbType == DBType.MYSQL) {
      sql = "UPDATE WAP_AREA SET AREA_NUMBER = '"
          + Function.writeDBEncode(model.getAreaNumber()) + "', AREA_NAME = '"
          + Function.writeDBEncode(model.getAreaName()) + "' WHERE ID = " + model.getId();
    }
    return sql;
  }
  protected static String getDeleteSQL(int id) {
    String sql = "";
    if (Database.dbType == DBType.ORACLE) {
      sql = "DELETE FROM WAP_AREA WHERE ID = " + id;
    } else if (Database.dbType == DBType.SQLSERVER) {
      sql = "DELETE FROM WAP_AREA WHERE ID = " + id;
    } else if (Database.dbType == DBType.MYSQL) {
      sql = "DELETE FROM WAP_AREA WHERE ID = " + id;
    }
    return sql;
  }
  protected static String getDeleteSQL(int[] ids) {
    String sql = "";
    if (Database.dbType == DBType.ORACLE) {
      sql = "DELETE FROM WAP_AREA WHERE 1 = 2";
      for ( int i = 0; i < ids.length; i++ ) {
        sql += " OR ID = " + ids[i];
      }
    } else if (Database.dbType == DBType.SQLSERVER) {
      sql = "DELETE FROM WAP_AREA WHERE 1 = 2";
      for ( int i = 0; i < ids.length; i++ ) {
        sql += " OR ID = " + ids[i];
      }
    } else if (Database.dbType == DBType.MYSQL) {
      sql = "DELETE FROM WAP_AREA WHERE 1 = 2";
      for ( int i = 0; i < ids.length; i++ ) {
        sql += " OR ID = " + ids[i];
      }
    }
    return sql;
  }
  protected static String getFindByPKSQL(int id) {
    String sql = "";
    if (Database.dbType == DBType.ORACLE) {
      sql = "SELECT * FROM WAP_AREA WHERE ID = " + id;
    } else if (Database.dbType == DBType.SQLSERVER) {
      sql = "SELECT * FROM WAP_AREA WHERE ID = " + id;
    } else if (Database.dbType == DBType.MYSQL) {
      sql = "SELECT * FROM WAP_AREA WHERE ID = " + id;
    }
    return sql;
  }
  protected static boolean isValidData(AreaModel model) {
    return true;
  }
  private static Connection getDBConnection() throws SysException {
    return Database.getConnection();
  }
  private static void closeConnection(Connection dbConnection) throws SysException {
    try {
      if (dbConnection != null && !dbConnection.isClosed()) {
        dbConnection.close();
        dbConnection = null;
      }
    } catch (SQLException se) {
      //throw new SysException("SQL Exception while closing DB connection : \n" + se);
    }
  }
  private static void closeResultSet(ResultSet result) throws SysException {
    try {
      if (result != null) {
        result.close();
      }
    } catch (SQLException se) {
      //throw new SysException("SQL Exception while closing Result Set : \n" + se);
    }
  }
  private static void closeStatement(Statement stmt) throws SysException {
    try {
      if (stmt != null) {
        stmt.close();
      }
    } catch (SQLException se) {
      //throw new SysException("SQL Exception while closing Statement : \n" + se);
    }
  }
  public static void main(String[] args) throws Exception{
    String action = "";
    if (args.length == 1) {
      action = args[0];
    }
    if (action == null || "".equals(action)) {

    } else if ("insert".equalsIgnoreCase(action)) {
      AreaModel model=new AreaModel();
      model.setId(AreaBean.getSequenceNextValue());
      model.setAreaNumber("abc");
      model.setAreaName("abc");
      AreaModel areaModel = AreaBean.insert(model);
    }else if ("update".equalsIgnoreCase(action)){
      AreaModel areaModel = AreaBean.findByPK(1);
      int id = areaModel.getId();
      String areaNumber = areaModel.getAreaNumber();
      String areaName = areaModel.getAreaName();
      areaModel.setAreaNumber(areaNumber);
      areaModel.setAreaName(areaName);
      update(areaModel);
    }else if ("delete".equalsIgnoreCase(action)){
      int[] ids = new int[3];
      ids[0] = 1;
      ids[1] = 2;
      ids[2] = 3;
      AreaBean.delete(ids);
    }else if ("findByPK".equalsIgnoreCase(action)){
      AreaModel areaModel = AreaBean.findByPK(1);
      int id = areaModel.getId();
      String areaNumber = areaModel.getAreaNumber();
      String areaName = areaModel.getAreaName();
      System.out.println("id = " + id);
      System.out.println("areaNumber = " + areaNumber);
      System.out.println("areaName = " + areaName);
    }else if ("queryBySql".equalsIgnoreCase(action)){
      Collection coll = AreaBean.queryBySql("SELECT * FROM WAP_AREA");
    }else if ("getRowCountBySql".equalsIgnoreCase(action)){
      int rowCount = AreaBean.getRowCountBySql("SELECT COUNT(*) FROM WAP_AREA");
      System.out.println("rowCount = " + rowCount);
    }else if ("queryAll".equalsIgnoreCase(action)){
      Collection coll = AreaBean.queryAll();
      Iterator it = coll.iterator();
      while ( it.hasNext() ) {
        Hashtable element = (Hashtable)it.next();
        String id = (String)element.get("id");
        String areaNumber = (String)element.get("areaNumber");
        String areaName = (String)element.get("areaName");
        System.out.print("id = " + id + ",\t");
        System.out.print("areaNumber = " + areaNumber + ",\t");
        System.out.print("areaName = " + areaName + "\n");
      }
    }else if ("getRowCountOfAll".equalsIgnoreCase(action)){
      int rowCount = AreaBean.getRowCountOfAll();
      System.out.println("rowCount = " + rowCount);
    }else if ("getSequenceNextValue".equalsIgnoreCase(action)){
      int sequenceValue = AreaBean.getSequenceNextValue();
      System.out.println("sequenceValue = " + sequenceValue);
    }
  }
}
/*
int id = (model==null?0:model.getId());
String areaNumber = (model==null?"":model.getAreaNumber());
String areaName = (model==null?"":model.getAreaName());
int id = PageUtil.parseIntField(request.getParameter("id"), "id", false, 0, );
String areaNumber = PageUtil.parseStringField(request.getParameter("areaNumber"), "areaNumber", false, 19);
String areaName = PageUtil.parseStringField(request.getParameter("areaName"), "areaName", false, 19);


int id = PageUtil.parseIntField(request.getParameter("id"), "id", false, 0, 999999999);
String areaNumber = PageUtil.parseStringField(request.getParameter("areaNumber"), "areaNumber", true, 20);
String areaName = PageUtil.parseStringField(request.getParameter("areaName"), "areaName", true, 20);
String id = (model==null?"0":""+model.getId());
String areaNumber = (model==null?"":""+model.getAreaNumber());
String areaName = (model==null?"":""+model.getAreaName());

Collection coll = AreaBean.queryAll((pageNum-1) * pageRow + 1, pageNum * pageRow);
Iterator it = coll.iterator();
while ( it.hasNext() ) {
    Hashtable element = (Hashtable)it.next();
    AreaModel areaModel = AreaBean.toModel(element);
    int id = areaModel.getId();
    String areaNumber = areaModel.getAreaNumber();
    String areaName = areaModel.getAreaName();

        excel.setCellData(new ExcelCell(ExcelUtil.INT_CELL_TYTE,    currRow, currCol++), id+"");
        excel.setCellData(new ExcelCell(ExcelUtil.STRING_CELL_TYTE, currRow, currCol++), areaNumber+"");
        excel.setCellData(new ExcelCell(ExcelUtil.STRING_CELL_TYTE, currRow, currCol++), areaName+"");
*/