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HomeDatabaseMysql TutorialJava中调用Oracle中的存储过程的单元测试代码

Oracle中的存储过程: /* 创建一个存储函数,返回指定员工的姓名,薪水和年收入 */ create or replace function queryEmp2(eno in

Oracle中的存储过程:

/*

创建一个存储函数,返回指定员工的姓名,薪水和年收入

*/

create or replace function queryEmp2(eno in number, empname out VARCHAR2,empsal out NUMBER)

--返回年收入

return NUMBER

as

begin

  select ename,sal into empname, empsal from emp where empno=eno;

  --返回年收入

  return empsal*12 + nvl(empsal,0);


end;

/

调用上面的存储过程的单元测试:

package demo;


import java.sql.CallableStatement;

import java.sql.Connection;

import java.sql.DriverManager;


import org.junit.Test;


public class Demo {

@Test

public void testQueryEmpl() throws Exception {

//注册驱动

Class.forName("oracle.jdbc.OracleDriver");

//注意如果端口不是1521时,,这时要给他改掉。

String url = "jdbc:oracle:thin:@localhost:1521:orcl";

//默认使用的是orcale中的用户scott

String user = "scott";

//scott的用户名和密码是tiger

String password = "tiger";

//调用存储过程。

String sql = "{call queryEmpl2(?,?,?)}";


Connection conn = DriverManager.getConnection(url,user,password);

CallableStatement call = conn.prepareCall(sql);


//赋参数值

call.setInt(1, 7839);

//对于out参数

//下面的方法是告诉输出的数据的参数类型,即Oracle中的varchar类型。

call.registerOutParameter(2, oracle.jdbc.OracleTypes.VARCHAR);

call.registerOutParameter(3, oracle.jdbc.OracleTypes.NUMBER);


//执行

call.execute();

//取结果,获得名字和薪水

String name = call.getString(2);

double sal = call.getDouble(3);


System.out.println(name + " " + sal);


//关闭资源

call.close();

conn.close();

}

}

linux

Statement
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