java中如何调用oracle存储过程

在java中使用CallableStatement调用存储过程

列:

创建需要的测试表:create table Test(tid varchar2(10),tname varchar2(10));

第一种情况:无返回值。

create or replace procedure test_a(param1 in varchar2,param2 in varchar2) as

begin

  insert into test value(param1,param2);

end;

java调用代码:

package com.test;

import java.sql.*;

import java.io.*;

import java.sql.*;

public class TestProcA{

  public TestProcA(){}

  public static void main(String []args){

    ResultSet rs=null;

    Connection conn=null;

    CallableStatement proc=null;

    try{

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

      conn=DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:test","test","test");

      proc=conn.prepareCall("{call test_a(?,?)}");

      proc.setString(1,"1001");

      proc.setString(2,"TestA");

      proc.execute();

    }catch(Exception e){

      e.printStackTrace();

    }finally{

      try{

        if(null!=rs){

          rs.close();

        }

        if(null!=proc){

          proc.close();

        }

        if(null!=conn){

          conn.close();

        }

      }catch(Exception e){

         e.printStackTrace();

      }

    }

  }

}

 

第二种情况:有返回值的存储过程(返回值非列表)

存储过程为:

create or replace procedure test_b(param1 in varchar2,param2 out varchar2)

as

begin

 select tname into param2 from test where tid=param1;

end;

java调用代码:

package com.test;

import java.sql.*;

import java.io.*;

import java.sql.*;

public class TestProcB{

  public TestProcB(){}

  public static void main(String []args){

    Connection conn=null;

    CallableStatement proc=null;

    try{

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

      conn=DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:test","test","test");

      proc=conn.prepareCall("{call test_b(?,?)}");

      proc.setString(1,"1001");

      proc.registerOutParameter(2,Types.VARCHAR);

      proc.execute();

      system.out.println("Output is:"+proc.getString(2));

    }catch(Exception e){

      e.printStackTrace();

    }finally{

      try{

        if(null!=proc){

          proc.close();

        }

        if(null!=conn){

          conn.close();

        }

      }catch(Exception e){

        e.printStackTrace();

      }

    }

  }

}

第三种情况:返回列表

由于oracle存储过程没有返回值,它的所有返回值都是通过out参数来替代的,列表同样也不例外,但由于是集合,所以不能用一般的参数,必须要用package了,要分两部分来写:

create or replace package tpackage as

type t_cursor is ref cursor;

procedure test_c(c_ref out t_cursor);

end;

 

create or replace package body tpackage as

procedure test_c(c_ref out t_cursor) is

begin

open c_ref for select * from test;

end test_c;

end tpackage;

 

java调用代码:

package com.test;

import java.sql.*;

import java.io.*;

import java.sql.*;

public class TestProcB{

  public TestProcB(){}

  public static void main(String []args){

    Connection conn=null;

    CallableStatement proc=null;

    ResultSet rs =null;

    try{

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

      conn=DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:test","test","test");

      proc=conn.prepareCall("{?=call tpackage.test_b(?)}");

      proc.registerOutParameter(1,OracleTypes.CURSOR);

      proc.execute();

      while(rs.next()){

         system.out.println(rs.getObject(1)+"\t"+rs.getObject(2));

      }

         }catch(Exception e){

      e.printStackTrace();

    }finally{

      try{

        if(null!=rs){

          rs.close();

        }

        if(null!=proc){

          proc.close();

        }

        if(null!=conn){

          conn.close();

        }

      }catch(Exception e){

        e.printStackTrace();

      }

    }

  }

}

 

 

 

 

 

posted on 2013-06-21 15:12  世界之大追梦者  阅读(301)  评论(0编辑  收藏  举报

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