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实例讲解JSP调用SQL Server的存储过程

 2008-02-21 16:36:09 来源:WEB开发网   
核心提示:jsp调用SQL Server存储过程的实例: 创建表: CREATE TABLE [BookUser] ( [UserID] [int] IDENTITY (1, 1) NOT NULL , [UserName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NOT NULL

jsp调用SQL Server存储过程的实例:


创建表:


CREATE TABLE [BookUser] (
   [UserID] [int] IDENTITY (1, 1) NOT NULL ,
   [UserName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NOT NULL ,
   [Title] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NOT NULL ,
   [Guid] [uniqueidentifier] NOT NULL CONSTRAINT [DF_BookUser_Guid] DEFAULT (newid()),
   [BirthDate] [datetime] NOT NULL ,
   [Description] [ntext] COLLATE Chinese_PRC_CI_AS NOT NULL ,
   [Photo] [image] NULL ,
   [Other] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL
CONSTRAINT [DF_BookUser_Other] DEFAULT ('默认值'),
   CONSTRAINT [PK_BookUser] PRIMARY KEY  CLUSTERED
   (
     [UserID]
   )  ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO

创建存储过程:


CREATE PROCEDURE InsertUser
@UserName varchar(50),
@Title varchar(255),
@Guid  uniqueidentifier,
@BirthDate DateTime,
@Description ntext,
@Photo image,
@Other nvarchar(50),
@UserID int output
As

Set NOCOUNT ON
If Exists (select UserID from BookUser Where UserName = @UserName)
RETURN 0
ELSE
Begin
INSERT INTO BookUser (UserName,Title,Guid,BirthDate,Description,Photo,Other)
VALUES(@UserName,@Title,@Guid,@BirthDate,@Description,@Photo,@Other)
SET @UserID = @@IDENTITY
RETURN 1
End
GO

JSP代码:


<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import = "java.sql.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body>
<%
//注意:下面的连接方法采用SQL Server的JDBC,先下载sqlserver驱动。
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String url="jdbc:sqlserver://localhost:1433;databaseName=Book;user=sa;passWord=";
String sql = "{? = call InsertUser(?,?,?,?,?,?,?,?)}";
Connection cn = null;
CallableStatement cmd = null;
try
{
   cn = DriverManager.getConnection(url);
   cmd = cn.divpareCall(sql);
   java.util.UUID Guid = java.util.UUID.randomUUID();
   String FilePath = application.getRealPath("") + "\test\logo.gif";
   java.io.FileInputStream f = new java.io.FileInputStream(FilePath);
   Date rightNow = Date.valueOf("2007-9-9");
   cmd.setString("UserName","mengxianhui"); 
   //注意修改这里,存储过程验证了UserName的唯一性。
   cmd.setString("Title","孟宪会");
   cmd.setString("Guid",Guid.toString());
   cmd.setString("BirthDate","2007-9-9");
   cmd.setDate("BirthDate",rightNow);
   cmd.setString("Description","【孟子E章】");
   cmd.setBinaryStream("Photo",f,f.available());
   cmd.setString("Other",null);
   cmd.registerOutParameter(1,java.sql.Types.INTEGER);
   cmd.registerOutParameter("UserID",java.sql.Types.INTEGER);
   cmd.execute();
   int returnValue = cmd.getInt(1);
   int UserID = cmd.getInt("UserID");
   if(returnValue == 1)
   {
     out.print("<li>添加成功!");
     out.print("<li>UserID = " + UserID);
     out.print("<li>returnValue = " + returnValue);
   }
   else
   {
     out.print("<li>添加失败!");
   }
   f.close();
}
catch(Exception ex)
{
   out.print(ex.getLocalizedMessage());
}
finally
{
   try
   {
     if(cmd != null)
     {
       cmd.close();
       cmd = null;
     }
     if(cn != null)
     {
       cn.close();
       cn = null;
     }
   }
   catch(Exception e)
   {
     e.printStackTrace();
   }
}
%>
</body>
</html>

Tags:实例 讲解 JSP

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