java实现调用ORACLE中的游标和包

今天把oracle中的包和游标学习了下，不废话，网上的的有些代码是错误的，抄来抄去，就自己实践了下，做个记录。直接上图，上代码

通过plsql创建自己的的包，包分为包头和包体。

1.包头如下：

 CREATE OR REPLACE PACKAGE JAVALINKTEST
 IS
   TYPE CURSOR_TYPE IS REF CURSOR;      --定义游标
   PROCEDURE TEST_CURSOR(INPUT STRING, CURSOR_BACK OUT CURSOR_TYPE);

 END JAVALINKTEST;

2.包体如下：

 CREATE OR REPLACE PACKAGE BODY JAVALINKTEST IS

 PROCEDURE TEST_CURSOR(INPUT STRING, CURSOR_BACK OUT CURSOR_TYPE)
 IS
 BEGIN
 IF INPUT = '物料' THEN
 OPEN CURSOR_BACK FOR SELECT * 　FROM T_BD_MATERIAL WHERE CFISSYNC = 1;
 ELSE
 OPEN CURSOR_BACK FOR SELECT * 　FROM T_BD_CUSTOMER WHERE CFISSYNC = 1;

 END IF;

 END TEST_CURSOR;
 END JAVALINKTEST;

3.java环境，用的时eclispe，oracle 11g，java代码如下，需要的小伙伴自己引一下jdbc包吧

 package cursorTest;

 import java.sql.CallableStatement;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 import oracle.jdbc.OracleTypes;
 import oracle.jdbc.oracore.OracleType;

 public class cursorUse {
     static ResultSet rs = null;
     static Statement stmt = null;
     static Connection conn = null;
     static CallableStatement proc = null;
     static int i;  

     public static void main(String[] args) {

         try {
             // 加载驱动
             Class.forName("oracle.jdbc.driver.OracleDriver");
             // 与数据库建立物理连接
             conn = DriverManager.getConnection(
                     "jdbc:oracle:thin:@127.0.0.1:1521:orcl", "easdb", "easdb");
             // 调用 游标
             proc = conn.prepareCall("call JAVALINKTEST.TEST_CURSOR(?,?)");
             proc.setString(1, "hhe");
             proc.registerOutParameter(2, OracleTypes.CURSOR);
             proc.execute();
             rs = (ResultSet) proc.getObject(2);

             while (rs.next()) {
                 i+=1;
                 System.out.println("fid:" + rs.getString(1)+
                         "   编码："+rs.getString("fnumber")+"  名称："+rs.getString("fname_l2"));

             }
             System.out.println("返回结果集：共"+i+"行");
         } catch (ClassNotFoundException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         } catch (SQLException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         } finally {
             if (rs != null) {
                 try {
                     rs.close();
                 } catch (SQLException e) {
                     // TODO Auto-generated catch block
                     e.printStackTrace();
                 }
             }
             if (stmt != null) {
                 try {
                     stmt.close();
                 } catch (SQLException e) {
                     // TODO Auto-generated catch block
                     e.printStackTrace();
                 }
             }
             if (conn != null) {
                 try {
                     conn.close();
                 } catch (SQLException e) {
                     // TODO Auto-generated catch block
                     e.printStackTrace();
                 }
             }
         }

     }

 }

运行结果如下：