Java中調用SQLServer存儲過程示例
最近做了個Java的小項目(第一次寫Java的項目哦), 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:
創建存儲過程:
JSP代碼:
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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"); //注意修改這里,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> |
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