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Java/JSP调用SQL Server存储过程发表时间:2010-04-29 13:17:37

大虾

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学徒一级

(初出茅庐)

  【引自孟子E章的博客】最近做了个Java的小项目(第一次写Java的项目),到网上搜索了半天,找到了一个比较好点的调用存储过程的例子,而且网上普遍采用的都是setXXX((int parameterIndex, XXX x)的形式。这种形式感觉不是很直观,下面就发布一个完整的采用setXXX(String parameterName, XXX x)的编写方法。创建数据表,存储过程的代码都完整发布。

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.*"%>


  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">









<%

//注意:下面的连接方法采用最新的SQL Server的JDBC,

//请到 http://msdn2.microsoft.com/zh-cn/data/aa937724.aspx 下载

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.prepareCall(sql);

java.util.UUID Guid = java.util.UUID.randomUUID();

String FilePath = application.getRealPath("") + "  estlogo.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("

  • 添加成功!");

    out.print("
  • UserID = " + UserID);

    out.print("
  • returnValue = " + returnValue);

    }

    else

    {

    out.print("
  • 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();

    }

    }

    %>








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