最近做了個Java的小項目，到網上搜索了半天，找到了一個比較好點的調用存儲過程的例子，而且網上普遍采用的都是setXXX((int parameterIndex, XXX x)的形式。這種形式感覺不是很直觀，下面就發布一個完整的采用setXXX(String parameterName, XXX x)的編寫方法。創建數據表，存儲過程的代碼都完整發布。
創建表：
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 (默認值),
CONSTRAINT [PK_BookUser] PRIMARY KEY CLUSTERED
(
[UserID]
) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
創建存儲過程：
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代碼：
<%@ 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：下面的連接方法采用最新的SQL Server的JDBC，
//請到 http://msdn2.microsoft.com/zh-cn/data/aa937724.aspx 下載
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"); //注意修改這裡，存儲過程驗證了UserName的唯一性。
cmd.setString("Title","孟憲會");
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>添加失敗！");
}
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>
