详解Oracle在out参数中访问光标

CREATE OR REPLACE PACKAGE MYPACKAGE AS  type empcursor isref cursor; procedure queryEmplist(dno in number,emplist out empcursor);END MYPACKAGE;

CREATE OR REPLACEPACKAGE BODY MYPACKAGE AS procedure queryEmplist(dno in number,emplist out empcursor) ASBEGIN--打开光标  open emplist forselect*from emp where deptno = dno;END queryEmplist;END MYPACKAGE;

package demo.oracle;import java.sql.CallableStatement;import java.sql.Connection;import java.sql.ResultSet;import oracle.jdbc.OracleCallableStatement;import oracle.jdbc.OracleTypes;import org.junit.Test;import demo.utils.JDBCUtils;publicclassTestCursor{/* CREATE OR REPLACE PACKAGE MYPACKAGE AS  type empcursor is ref cursor; procedure queryEmplist(dno in number,emplist out empcursor);END MYPACKAGE; * */@Testpublicvoid testCursor(){String sql="{call MYPACKAGE.queryEmplist(?,?)}";Connection conn =null;CallableStatement call =null;ResultSet rs =null;try{//获取数据库的连接  conn =JDBCUtils.getConnection();//创建statement  call = conn.prepareCall(sql);//对于in参数，赋值  call.setInt(1,10);//对于out参数，申明  call.registerOutParameter(2,OracleTypes.CURSOR);//执行调用  call.execute();//取出该部门中所有员工的信息  rs =((OracleCallableStatement)call).getCursor(2);while(rs.next()){//取出该员工的员工号，姓名，薪水和职位int empno = rs.getInt("empno");String name =rs.getString("ename");double salay = rs.getDouble("sal");String job = rs.getString("empjob");System.out.println(empno+"/t"+name+"/t"+salay+"/t"+job);}}catch(Exception e){  e.printStackTrace();}finally{JDBCUtils.release(conn, call, rs);}}}

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