cqylxdaoimpl.java

客户管理系统是一个典型的数据库开发应用程序

package com.dao;

import java.util.List;
import java.util.ArrayList;
import com.tool.JDBConnection;
import com.tool.SQLCode;
import java.sql.ResultSet;
import java.sql.*;
import com.domain.CqylxForm;

//对表tb_Client_qylx的操作
public class CqylxDaoImpl
    implements CqylxDao {
//查询的操作
  public List qylxSelect() {
    JDBConnection connection = new JDBConnection();
    CqylxForm form = null;
    List list = new ArrayList();
    String sql = SQLCode.getSQLCode("sql.qylx.select");
    try {
      ResultSet rs = connection.executeQuery(sql);
      while (rs.next()) {
        form = new CqylxForm();
        form.setQylx_id(rs.getString(1));
        form.setQylx_lxmc(rs.getString(2));
        form.setQylx_bz(rs.getString(3));
        list.add(form);
      }
    }
    catch (SQLException ex) {
    }
    connection.close();
    return list;
  }

//删除操作
  public void qylxDelete(CqylxForm qylx) {
    JDBConnection connection = new JDBConnection();
    String sql = SQLCode.getSQLCode("sql.qylx.delete");
    sql = connection.editSqlCode(sql, qylx.getQylx_id());
    connection.executeUpdate(sql);
    connection.close();
  }

//修改操作
  public void qylxupdate(CqylxForm qylx) {
    JDBConnection connection = new JDBConnection();
    String sql = SQLCode.getSQLCode("sql.qylx.update");
    sql = connection.editSqlCode(sql, qylx.getQylx_lxmc());
    sql = connection.editSqlCode(sql, qylx.getQylx_bz());
    sql = connection.editSqlCode(sql, qylx.getQylx_id());
    connection.executeUpdate(sql);
    connection.close();

  }

//单独查找
  public CqylxForm qylxSelectOne(CqylxForm qylx) {
    JDBConnection connection = new JDBConnection();
    CqylxForm form = null;
    List list = new ArrayList();
    String sql = SQLCode.getSQLCode("sql.qylx.selectOne");
    sql = connection.editSqlCode(sql, qylx.getQylx_id());
    try {
      ResultSet rs = connection.executeQuery(sql);
      while (rs.next()) {
        form = new CqylxForm();
        form.setQylx_id(rs.getString(1));
        form.setQylx_lxmc(rs.getString(2));
        form.setQylx_bz(rs.getString(3));
      }
    }
    catch (SQLException ex) {
    }
    connection.close();
    return form;
  }

//插入操作
  public void qylxInsert(CqylxForm qylx) {
    JDBConnection connection = new JDBConnection();
    String sql = SQLCode.getSQLCode("sql.qylx.insert");
    sql = connection.editSqlCode(sql, qylx.getQylx_id());
    sql = connection.editSqlCode(sql, qylx.getQylx_lxmc());
    sql = connection.editSqlCode(sql, qylx.getQylx_bz());
    connection.executeUpdate(sql);
    connection.close();
  }

//以数据库中的记录数，查找出多少记录计算,以便做帐号存贮
  public int qulxCount() {
    int iCount = 0;
    JDBConnection connection = null;
    connection = new JDBConnection();
    String sql = SQLCode.getSQLCode("sql.qylx.count");
    ResultSet rs = null;
    try {
      rs = connection.executeQuery(sql);
      while (rs.next()) {
        CqylxForm form = new CqylxForm();
        iCount = rs.getInt("t");
      }
    }
    catch (SQLException ex) {
    }
    connection.close();
    return iCount+1;
  }
}