#一个简单的三层架构之仓库管理系统的入库出库
今天来讲一下一个简单的三层架构的程序，一个仓库管理系统的简单的出库入库操作，还有供应商的信息录入。
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首先是在sql中（access也行）中建表，建表的字段设计如下
包括4个表（实际上我建的不止，后期扩展的有供应商的表格等等，很多需要后期加表），分别是，货物属性信息表、进货入库表，出货出库表，用户信息表，以下详细说明我的每个表，以下所有的表id均为自动增加，不再说明
用户表：一共三个字段，用户名，用户密码，用户权限
进货表：入库编号、货物编号、货物名称、供应商名称、仓库名称、货物规格、计量单位、入库数量、入库价格、入库总金额、入库日期、经手人、备注
出货表：出库编号、仓库名称、货物名称、货物规格、计量单位、出库数量、出库价格、出库总金额、出库日期、提货单位、提货人、经手人、备注
货物信息表：货物编号、货物名称、仓库名称、货物规格、计量单位、货物数量、货物入库价格、货物出库价格、货物低线存储、货物顶线存储、记录修改人、修改日期
(供应商表不累加说明，自己按照之前的做就是了。很简单。)
界面设计：(我一开始做的比较丑,简单的功能先实现就好了）
主界面设计（多窗体（创建父窗体，子窗体等等））
供应商管理界面
入库管理界面
出库管理界面
类设计
好嘞，下面上代码！（记住要创建app.config文件记住配置，配置过程网上有）
class instoremodel{public string goodsname { get; set; }public string prname { get; set; }public string storename { get; set; }public int goodsid { get; set; }public string goodsspec { get; set; }public string goodsunit { get; set; }public int goodsnum { get; set; }public decimal goodsprice { get; set; }public decimal goodsaprice { get; set; }public DateTime indate { get; set; }public string handlepeople { get; set; }public string inremark { get; set; }}class instoredal{public int addnew(instoremodel p){object obg = null;//sqlhelper h = new sqlhelper();obg = sqlhelper.ExecuteScalar("insert into instore (goodsid,goodsname,prname,storename,goodsspec,goodsunit,goodsnum,goodsprice,goodsaprice,indate,handlepeople,remark) values" +"(@goodsid,@goodsname,@prname,@storename,@goodsspec,@goodsunit,@goodsnum,@goodsprice,@goodsaprice,@indate,@handlepeople,@remark);select @@identity", new System.Data.SqlClient.SqlParameter("goodsid",p.goodsid), new System.Data.SqlClient.SqlParameter("goodsname", p.goodsname), new System.Data.SqlClient.SqlParameter("prname", p.prname), new System.Data.SqlClient.SqlParameter("goodsspec", p.goodsspec), new System.Data.SqlClient.SqlParameter("storename", p.storename), new System.Data.SqlClient.SqlParameter("goodsunit", p.goodsunit), new System.Data.SqlClient.SqlParameter("goodsnum", p.goodsnum), new System.Data.SqlClient.SqlParameter("goodsprice", p.goodsprice), new System.Data.SqlClient.SqlParameter("goodsaprice", p.goodsaprice), new System.Data.SqlClient.SqlParameter("indate", p.indate), new System.Data.SqlClient.SqlParameter("handlepeople", p.handlepeople), new System.Data.SqlClient.SqlParameter("remark", p.inremark));return Convert.ToInt32(obg);}public int delect(int goodsid){return sqlhelper.ExecuteNonQuery("delete from instore where inid=@inid", new System.Data.SqlClient.SqlParameter("inid", goodsid));}public int update(instoremodel p){return sqlhelper.ExecuteNonQuery("update instore set goodsid=@goodsid,goodsname=@goodsname,prname=@prname," +"storename=@storename,goodsspec=@goodsspec,goodsunit=@goodsunit,goodsnum=@goodsnum,goodsprice=goodsprice," +"goodsaprice=@goodsaprice,indate=@indate,handlepeople=@handlepeople,remark=@remark" +" where goodsid=@goodsid", new System.Data.SqlClient.SqlParameter("goodsid", p.goodsid), new System.Data.SqlClient.SqlParameter("goodsname", p.goodsname), new System.Data.SqlClient.SqlParameter("prname", p.prname), new System.Data.SqlClient.SqlParameter("goodsspec", p.goodsspec), new System.Data.SqlClient.SqlParameter("storename", p.storename), new System.Data.SqlClient.SqlParameter("goodsunit", p.goodsunit), new System.Data.SqlClient.SqlParameter("goodsnum", p.goodsnum), new System.Data.SqlClient.SqlParameter("goodsprice", p.goodsprice), new System.Data.SqlClient.SqlParameter("goodsaprice", p.goodsaprice), new System.Data.SqlClient.SqlParameter("indate", p.indate), new System.Data.SqlClient.SqlParameter("handlepeople", p.handlepeople), new System.Data.SqlClient.SqlParameter("remark", p.inremark));}public instoremodel get(int goodsid){DataTable data = sqlhelper.ExecuteDataTable("select * from instore where goodsid=@goodsid", new System.Data.SqlClient.SqlParameter("goodsid", goodsid));if (data.Rows.Count <= 0)return null;else if (data.Rows.Count == 1){instoremodel result = new instoremodel();DataRow r = data.Rows[0];result.goodsid = (int )r["goodsid"];result.goodsaprice = (decimal)r["goodsaprice"];result.goodsname = (string)r["goodsname"];result.goodsnum = (int )r["goodsnum"];result.goodsprice = (decimal)r["goodsprice"];result.goodsspec = (string)r["goodsspec"];result.goodsunit = (string)r["goodsunit"];result.handlepeople= (string)r["handlepeople"];result.indate = (DateTime)r["indate"];result.inremark= (string)r["remark"];result.prname= (string)r["prname"];result.storename = (string)r["storename"];return result;}elsethrow new Exception("出现多条数据！");}public DataTable get(){DataTable dt = sqlhelper.ExecuteDataTable("select inid as '入库编号',goodsid as '货物编号',goodsname as '货物名称',prname as '供应商',storename as '仓库名称'," +"goodsspec as '货物规格',goodsunit as '计量单位',goodsnum as '货物数量',goodsprice as '货物价格',goodsaprice" +" as '货物总价格' ,indate as '入库时间',handlepeople as '经手人',remark as '备注' from instore");return dt;}}
class outstore{public string storename { get; set; }public string goodsname { get; set; }public string goodsspec { get; set; }public string goodsunit { get; set; }public int goodsnum { get; set; }public decimal goodsprice { get; set; }public decimal goodsaprice { get; set; }public DateTime outdate { get; set; }public string pgprovider { get; set; }public string pgpeople { get; set; }public string handlepeople { get; set; }public string remark { get; set; }}public int addnew(outstore p){object obg = null;//sqlhelper h = new sqlhelper();obg = sqlhelper.ExecuteScalar("insert into outstore (goodsname,pgprovider,pgpeople,storename,goodsspec,goodsunit,goodsnum,goodsprice,goodsaprice,outdate,handlepeople,remark) values" +"(@pgpeople,@goodsname,@pgprovider,@storename,@goodsspec,@goodsunit,@goodsnum,@goodsprice,@goodsaprice,@outdate,@handlepeople,@remark);select @@identity", new System.Data.SqlClient.SqlParameter("pgpeople", p.pgpeople), new System.Data.SqlClient.SqlParameter("goodsname", p.goodsname), new System.Data.SqlClient.SqlParameter("pgprovider", p.pgprovider), new System.Data.SqlClient.SqlParameter("goodsspec", p.goodsspec), new System.Data.SqlClient.SqlParameter("storename", p.storename), new System.Data.SqlClient.SqlParameter("goodsunit", p.goodsunit), new System.Data.SqlClient.SqlParameter("goodsnum", p.goodsnum), new System.Data.SqlClient.SqlParameter("goodsprice", p.goodsprice), new System.Data.SqlClient.SqlParameter("goodsaprice", p.goodsaprice), new System.Data.SqlClient.SqlParameter("outdate", p.outdate), new System.Data.SqlClient.SqlParameter("handlepeople", p.handlepeople), new System.Data.SqlClient.SqlParameter("remark", p.remark));return Convert.ToInt32(obg);}public int delect(int goodsid){return sqlhelper.ExecuteNonQuery("delete from outstore where outid=@outid", new System.Data.SqlClient.SqlParameter("outid", goodsid));}public int update(outstore p){return sqlhelper.ExecuteNonQuery("update instore set pgprovider=@pgprovider,goodsname=@goodsname,pgpeople=@pgpeople," +"storename=@storename,goodsspec=@goodsspec,goodsunit=@goodsunit,goodsnum=@goodsnum,goodsprice=goodsprice," +"goodsaprice=@goodsaprice,outdate=@outdate,handlepeople=@handlepeople,remark=@remark" +" where goodsid=@goodsid", new System.Data.SqlClient.SqlParameter("pgprovider", p.pgprovider), new System.Data.SqlClient.SqlParameter("goodsname", p.goodsname), new System.Data.SqlClient.SqlParameter("pgpeople", p.pgpeople), new System.Data.SqlClient.SqlParameter("goodsspec", p.goodsspec), new System.Data.SqlClient.SqlParameter("storename", p.storename), new System.Data.SqlClient.SqlParameter("goodsunit", p.goodsunit), new System.Data.SqlClient.SqlParameter("goodsnum", p.goodsnum), new System.Data.SqlClient.SqlParameter("goodsprice", p.goodsprice), new System.Data.SqlClient.SqlParameter("goodsaprice", p.goodsaprice), new System.Data.SqlClient.SqlParameter("outdate", p.outdate), new System.Data.SqlClient.SqlParameter("handlepeople", p.handlepeople), new System.Data.SqlClient.SqlParameter("remark", p.remark));}public outstore get(int outid){DataTable data = sqlhelper.ExecuteDataTable("select * from outstore where outid=@outid", new System.Data.SqlClient.SqlParameter("outid", outid));if (data.Rows.Count <= 0)return null;else if (data.Rows.Count == 1){outstore result = new outstore();DataRow r = data.Rows[0];result.pgprovider = (string)r["pgprovider"];result.goodsaprice = (decimal)r["goodsaprice"];result.goodsname = (string)r["goodsname"];result.goodsnum = (int)r["goodsnum"];result.goodsprice = (decimal)r["goodsprice"];result.goodsspec = (string)r["goodsspec"];result.goodsunit = (string)r["goodsunit"];result.handlepeople = (string)r["handlepeople"];result.outdate = (DateTime)r["outdate"];result.remark = (string)r["remark"];result.pgpeople = (string)r["pgpeople"];result.storename = (string)r["storename"];return result;}elsethrow new Exception("出现多条数据！");}public DataTable get(){DataTable dt = sqlhelper.ExecuteDataTable("select outid as '出库编号',pgprovider as '提货单位',goodsname as '货物名称',pgpeople as '提货人',storename as '仓库名称'," +"goodsspec as '货物规格',goodsunit as '计量单位',goodsnum as '货物数量',goodsprice as '货物价格',goodsaprice" +" as '货物总价格' ,outdate as '出库时间',handlepeople as '经手人',remark as '备注' from outstore");return dt;}}
class provider{public string providername { get; set; }public string phone { get; set; }public string manager { get; set; }public string remark { get; set; }public int providerid { get; set; }}class providerdal{public int addnew(provider p){object obg = null;//sqlhelper h = new sqlhelper();obg = sqlhelper.ExecuteScalar("insert into goodsprovider (providername,manager,phone,remark) values(@providername,@manager,@phone,@remark);select @@identity", new System.Data.SqlClient.SqlParameter("providername", p.providername), new System.Data.SqlClient.SqlParameter("manager", p.manager), new System.Data.SqlClient.SqlParameter("phone", p.phone), new System.Data.SqlClient.SqlParameter("remark", p.remark));return Convert.ToInt32(obg);}public int delect(string providername){return sqlhelper.ExecuteNonQuery("delete from goodsprovider where providername=@providername", new System.Data.SqlClient.SqlParameter("providername", providername));}public int update(provider p){return sqlhelper.ExecuteNonQuery("update users set providername=@providername ,manager=@manager ,phone=@phone,remark=@remark,providerid=@providerid" +" where providerid=@providerid",new System.Data.SqlClient.SqlParameter("providername", p.providername), new System.Data.SqlClient.SqlParameter("manager", p.manager), new System.Data.SqlClient.SqlParameter("phone", p.phone), new System.Data.SqlClient.SqlParameter("remark", p.remark), new System.Data.SqlClient.SqlParameter("providerid", p.providerid));}public provider get(string providername){DataTable data = sqlhelper.ExecuteDataTable("select * from users where providername=@providername", new System.Data.SqlClient.SqlParameter("providername", providername));if (data.Rows.Count <= 0)return null;else if (data.Rows.Count == 1){provider result = new provider();DataRow r = data.Rows[0];result.providername = (string)r["providername"];result.manager = (string)r["manager"];result.phone = (string)r["phone"];result.remark = (string)r["remark"];result.providerid = (Int32)r["providerid"];return result;}elsethrow new Exception("出现多条数据！");}public DataTable get(){DataTable dt = sqlhelper.ExecuteDataTable("select providername as '供应商名称' ,manager as'负责人' ,phone as'电话',remark as'备注' from goodsprovider");return dt;}}
class sqlhelper{private static readonly string connstr= ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;public static int ExecuteNonQuery(string cmdText,params SqlParameter[] parameters){using (SqlConnection conn = new SqlConnection(connstr)){conn.Open();using (SqlCommand cmd = conn.CreateCommand()){mandText = cmdText;cmd.Parameters.AddRange(parameters);return cmd.ExecuteNonQuery();}}}public static object ExecuteScalar(string cmdText,params SqlParameter[] parameters){using (SqlConnection conn = new SqlConnection(connstr)){conn.Open();using (SqlCommand cmd = conn.CreateCommand()){mandText = cmdText;cmd.Parameters.AddRange(parameters);return cmd.ExecuteScalar();}}}public static DataTable ExecuteDataTable(string cmdText,params SqlParameter[] parameters){using (SqlConnection conn = new SqlConnection(connstr)){conn.Open();using (SqlCommand cmd = conn.CreateCommand()){mandText = cmdText;cmd.Parameters.AddRange(parameters);using (SqlDataAdapter adapter = new SqlDataAdapter(cmd)){DataTable dt = new DataTable();adapter.Fill(dt);return dt;}}}}public static SqlDataReader ExecuteDataReader(string cmdText,params SqlParameter[] parameters){SqlConnection conn = new SqlConnection(connstr);conn.Open();using (SqlCommand cmd = conn.CreateCommand()){mandText = cmdText;cmd.Parameters.AddRange(parameters);return cmd.ExecuteReader(CommandBehavior.CloseConnection);}}}
下面为运行截图（运行的名字瞎想的）
供应商管理
入库
出库
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