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Java对存储过程的调用方法

一、Java如何实现对存储过程的调用:

A:不带输出参数的

create procedure getsum  
@n int =0<--此处为参数-->  
as 
declare @sum int<--定义变量-->  
declare @i int 
set @sum=0  
set @i=0  
while @i<=@n begin 
set @sum=@sum+@i  
set @i=@i+1  
end 
print 'the sum is '+ltrim(rtrim(str(@sum))) 

在SQL中执行:

exec getsum 100

在JAVA中调用:

JAVA可以调用 但是在JAVA程序却不能去显示该存储过程的结果 因为上面的存储过程的参数类型int 传递方式是in(按值)方式

import java.sql.*;  
public class ProcedureTest   
{  
public static void main(String args[]) throws Exception  
{  
//加载驱动  
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());  
//获得连接  
Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa","");  
 
 
//创建存储过程的对象  
CallableStatement c=conn.prepareCall("{call getsum(?)}");  
 
//给存储过程的参数设置值  
c.setInt(1,100); //将第一个参数的值设置成100  
 
//执行存储过程  
c.execute();  
conn.close();  
}  
}  

B:带输出参数的

1:返回int

alter procedure getsum  
@n int =0,  
@result int output 
as 
declare @sum int 
declare @i int 
set @sum=0  
set @i=0  
while @i<=@n begin 
set @sum=@sum+@i  
set @i=@i+1  
end 
set @result=@sum 

在查询分析器中执行:

declare @myResult int 
exec getsum 100,@myResult output 
print @myResult 

在JAVA中调用:

import java.sql.*;  
public class ProcedureTest   
{  
public static void main(String args[]) throws Exception  
{  
//加载驱动  
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());  
//获得连接  
Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa","");  
 
 
//创建存储过程的对象  
CallableStatement c=conn.prepareCall("{call getsum(?,?)}");  
 
//给存储过程的第一个参数设置值  
c.setInt(1,100);  
 
//注册存储过程的第二个参数  
c.registerOutParameter(2,java.sql.Types.INTEGER);  
 
//执行存储过程  
c.execute();  
 
//得到存储过程的输出参数值  
System.out.println (c.getInt(2));  
conn.close();  
}  
} 

2:返回varchar

存储过程带游标:

在存储过程中带游标 使用游标不停的遍历orderid

create procedure CursorIntoProcedure  
@pname varchar(8000) output 
as 
--定义游标  
declare cur cursor for select orderid from orders  
--定义一个变量来接收游标的值  
declare @v varchar(5)  
--打开游标  
open cur  
set @pname=''--给@pname初值  
--提取游标的值  
fetch next from cur into @v  
while @@fetch_status=0  
begin 
 
 
set @pname=@pname+';'+@v  
fetch next from cur into @v  
end 
print @pname  
--关闭游标  
close cur  
--销毁游标  
deallocate cur 

执行存储过程:

exec CursorIntoProcedure '' 

JAVA调用:

import java.sql.*;  
public class ProcedureTest   
{  
public static void main(String args[]) throws Exception  
{  
//加载驱动  
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());  
//获得连接  
Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa","");  
CallableStatement c=conn.prepareCall("{call CursorIntoProcedure(?)}");  
 
 
c.registerOutParameter(1,java.sql.Types.VARCHAR);  
 
c.execute();  
 
System.out.println (c.getString(1));  
conn.close();  
}  
}  

C:删除数据的存储过程

存储过程:

drop table 学生基本信息表  
create table 学生基本信息表  
(  
StuID int primary key,  
StuName varchar(10),  
StuAddress varchar(20)  
)  
insert into 学生基本信息表 values(1,'三毛','wuhan')  
insert into 学生基本信息表 values(2,'三毛','wuhan')  
create table 学生成绩表  
(  
StuID int,  
Chinese int,  
PyhSics int 
foreign key(StuID) references 学生基本信息表(StuID)  
on delete cascade  
on update cascade  
)   
insert into 学生成绩表 values(1,99,100)  
insert into 学生成绩表 values(2,99,100) 

创建存储过程:

create procedure delePro  
@StuID int 
as 
delete from 学生基本信息表 where StuID=@StuID  
--创建完毕  
exec delePro 1 --执行存储过程  
--创建存储过程  
create procedure selePro  
as 
select * from 学生基本信息表  
--创建完毕  
exec selePro --执行存储过程 

在JAVA中调用:

import java.sql.*;  
public class ProcedureTest   
{  
public static void main(String args[]) throws Exception  
{  
//加载驱动  
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());  
//获得连接  
Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa","");  
 
 
//创建存储过程的对象  
CallableStatement c=conn.prepareCall("{call delePro(?)}");  
 
c.setInt(1,1);  
 
c.execute();  
 
c=conn.prepareCall("{call selePro}");  
ResultSet rs=c.executeQuery();  
 
while(rs.next())  
{  
String Stu=rs.getString("StuID");  
String name=rs.getString("StuName");  
String add=rs.getString("StuAddress");  
 
System.out.println ("学号:"+" "+"姓名:"+" "+"地址");  
System.out.println (Stu+" "+name+" "+add);  
}  
c.close();  
}  
} 

D:修改数据的存储过程

创建存储过程:

create procedure ModPro  
@StuID int,  
@StuName varchar(10)  
as 
update 学生基本信息表 set StuName=@StuName where StuID=@StuID 

执行存储过程:

exec ModPro 2,'四毛'

JAVA调用存储过程:

import java.sql.*;  
public class ProcedureTest   
{  
public static void main(String args[]) throws Exception  
{  
//加载驱动  
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());  
//获得连接  
Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa","");  
 
 
//创建存储过程的对象  
CallableStatement c=conn.prepareCall("{call ModPro(?,?)}");  
 
c.setInt(1,2);  
c.setString(2,"美女");  
 
c.execute();  
 
c=conn.prepareCall("{call selePro}");  
ResultSet rs=c.executeQuery();  
 
while(rs.next())  
{  
String Stu=rs.getString("StuID");  
String name=rs.getString("StuName");  
String add=rs.getString("StuAddress");  
 
System.out.println ("学号:"+" "+"姓名:"+" "+"地址");  
System.out.println (Stu+" "+name+" "+add);  
}  
c.close();  
}  
} 

E:查询数据的存储过程(模糊查询)

存储过程:

create procedure FindCusts  
@cust varchar(10)  
as 
select customerid from orders where customerid   
like '%'+@cust+'%'

执行:

execute FindCusts 'alfki'

在JAVA中调用:

import java.sql.*;  
public class ProcedureTest   
{  
public static void main(String args[]) throws Exception  
{  
//加载驱动  
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());  
//获得连接  
Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa","");  
 
 
//创建存储过程的对象  
CallableStatement c=conn.prepareCall("{call FindCusts(?)}");  
c.setString(1,"Tom");  
 
ResultSet rs=c.executeQuery();  
 
while(rs.next())  
{  
String cust=rs.getString("customerid");   
System.out.println (cust);  
}  
c.close();  
}  
} 

F:增加数据的存储过程

存储过程:

create procedure InsertPro  
@StuID int,  
@StuName varchar(10),  
@StuAddress varchar(20)  
as 
insert into 学生基本信息表 values(@StuID,@StuName,@StuAddress) 

调用存储过程:

exec InsertPro 5,'555','555'

在JAVA中执行:

import java.sql.*;  
public class ProcedureTest   
{  
public static void main(String args[]) throws Exception  
{  
//加载驱动  
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());  
//获得连接  
Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa","");  
 
 
//创建存储过程的对象  
CallableStatement c=conn.prepareCall("{call InsertPro(?,?,?)}");  
c.setInt(1,6);  
c.setString(2,"Liu");  
c.setString(3,"wuhan");  
 
c.execute();  
 
c=conn.prepareCall("{call selePro}");  
ResultSet rs=c.executeQuery();  
 
while(rs.next())  
{  
String stuid=rs.getString("StuID");   
String name=rs.getString("StuName");   
String address=rs.getString("StuAddress");   
System.out.println (stuid+" "+name+" "+address);  
}  
c.close();  
}  
} 

G:在JAVA中创建存储过程 并且在JAVA中直接调用

import java.sql.*;  
public class ProcedureTest   
{  
public static void main(String args[]) throws Exception  
{  
//加载驱动  
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());  
//获得连接  
Connection conn=DriverManager.getConnection("jdbc:odbc:mydata","sa","");  
 
 
Statement stmt=conn.createStatement();  
//在JAVA中创建存储过程  
stmt.executeUpdate("create procedure OOP as select * from 学生成绩表");  
 
 
CallableStatement c=conn.prepareCall("{call OOP}");  
 
ResultSet rs=c.executeQuery();  
while(rs.next())  
{  
String chinese=rs.getString("Chinese");  
 
System.out.println (chinese);  
}  
conn.close();  
 
}  
}  

 

posted @ 2014-10-17 14:59  ㄓㄤㄑㄧㄤ  阅读(359)  评论(0编辑  收藏  举报
哈哈,页脚部分。