Java调用Oracle存储过程详解

步骤：

1、编写Oracle存储过程

2、编写数据库获取连接工具类

3、编写简单应用调用存储过程

实现：

1、Oracle存储过程：

create table test( id varchar2(32), name varchar2(32)); CREATE OR REPLACE PROCEDURE insert_procedure( PARA1 IN VARCHAR2, PARA2 IN VARCHAR2) ASBEGIN INSERT INTO test (id, name) VALUES (PARA1, PARA2);END insert_procedure;CREATE OR REPLACE PROCEDURE select_procedure( para_id IN VARCHAR2, name OUT sys_refcursor ) ASBEGIN OPEN name FOR SELECT * FROM test WHERE id = para_id;END;

2、JDBC工具类

import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;public class DBUtil { public static final String DRIVER = "oracle.jdbc.driver.OracleDriver"; public static final String URL = "jdbc:oracle:thin:@localhost:1521/orcl"; public static final String USERNAME = "pfm"; public static final String PASSWORD = "pfm"; /** * 通过静态代码块 注册数据库驱动 */ static { try { Class.forName(DRIVER); } catch (ClassNotFoundException e) { e.printStackTrace(); } } /** * 获得Connection * * @return */ public static Connection getConnection() { Connection conn = null; try { conn = DriverManager.getConnection(URL, USERNAME, PASSWORD); } catch (SQLException e) { e.printStackTrace(); } return conn; } /** * 获得Statement * * @return */ public static Statement getStatement() { Statement st = null; try { st = getConnection().createStatement(); } catch (SQLException e) { e.printStackTrace(); } return st; } /** * 关闭ResultSet * * @param rs */ public static void closeResultSet(ResultSet rs) { if (rs != null) { try { rs.close(); } catch (SQLException e) { e.printStackTrace(); } } } /** * 关闭Statement * * @param st */ public static void closeStatement(Statement st) { if (st != null) { try { st.close(); } catch (SQLException e) { e.printStackTrace(); } } } /** * 关闭Connection * * @param conn */ public static void closeConnection(Connection conn) { if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } /** * 关闭全部 * * @param rs * @param sta * @param conn */ public static void closeAll(ResultSet rs, Statement sta, Connection conn) { closeResultSet(rs); closeStatement(sta); closeConnection(conn); }}

3、调用存储过程：

import java.sql.CallableStatement;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import oracle.jdbc.driver.OracleTypes;/** * 测试调用存储过程 * */public class StoredTest { public static void main(String[] args) { insert_call(); //select_call(); } /** * 执行存储过程 插入数据 */ public static void insert_call() { Connection conn = DBUtil.getConnection(); PreparedStatement pst = null; CallableStatement proc = null; // 创建执行存储过程的对象 try { proc = conn.prepareCall("{ call insert_procedure(?,?) }"); proc.setString(1, "1"); // 设置第一个输入参数 proc.setString(2, "hello call"); // 设置第一个输入参数 proc.execute();// 执行 } catch (SQLException e) { e.printStackTrace(); } finally { try { // 关闭IO流 proc.close(); DBUtil.closeAll(null, pst, conn); } catch (Exception e) { e.printStackTrace(); } } } /** * 执行存储过程 查询数据 */ public static void select_call() { Connection conn = DBUtil.getConnection(); CallableStatement stmt; try { stmt = conn.prepareCall("{ call select_procedure(?, ?) }"); // 用此调用方法不能实现多行语法 stmt.setString(1, "1"); stmt.registerOutParameter(2, OracleTypes.CURSOR); stmt.execute(); ResultSet rs = (ResultSet) stmt.getObject(2); while (rs.next()) { System.out.println(rs.getString("name")); } } catch (SQLException e) { e.printStackTrace(); } finally { DBUtil.closeConnection(conn); } }}

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