JAVA调用数据库存储过程

下面将举出JAVA对ORACLE数据库存储过程的调用

ConnUtils连接工具类：用来获取连接、释放资源

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package com.ljq.test;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

/**

* 连接工具类

*

* ConnUtils类声明为final类说明此类不可以被继承

*

* @author jiqinlin

*

*/

public final class ConnUtils {

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

private static String user = "test";

private static String password = "test";

/**

* 说明要访问此类只能通过static或单例模式

*/

private ConnUtils() {

}

// 注册驱动 (只做一次)

static {

try {

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

} catch (ClassNotFoundException e) {

throw new ExceptionInInitializerError(e);

}

}

/**

* 获取Connection对象

*

* @return

* @throws SQLException

*/

public static Connection getConnection() throws SQLException {

return DriverManager.getConnection(url, user, password);

}

/**

* 释放资源

*

* @param rs

* @param st

* @param conn

*/

public static void free(ResultSet rs, Statement st, Connection conn) {

try {

if (rs != null)

rs.close();

} catch (SQLException e) {

e.printStackTrace();

} finally {

try {

if (st != null)

st.close();

} catch (SQLException e) {

e.printStackTrace();

} finally {

if (conn != null)

try {

conn.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

}

}

}

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创建带出参存储过程代码：

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--带出参存储过程

CREATE OR REPLACE PROCEDURE stu_proc(v_name OUT VARCHAR2) AS

BEGIN

SELECT o.sname INTO v_name FROM student o where o.id = 2;

END;

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使用java调用带出参的存储过程

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package com.ljq.test;

import java.sql.CallableStatement;

import java.sql.Connection;

import java.sql.SQLException;

import java.sql.Types;

public class ProceTest {

public static void main(String[] args) throws Exception {

Connection conn = null;

CallableStatement statement = null;

String sql = "{call stu_proc(?)}";

try {

conn = ConnUtils.getConnection();

statement = conn.prepareCall(sql);

statement.registerOutParameter(1, Types.VARCHAR);

statement.executeUpdate();

//输出：lisi

String sname = statement.getString(1);

System.out.println(sname);

} catch (SQLException e) {

e.printStackTrace();

}finally{

ConnUtils.free(null, statement, conn);

}

}

}

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创建带出入参存储过程代码

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--带出入参存储过程

CREATE OR REPLACE PROCEDURE stu_proc(v_id IN NUMBER, v_name OUT VARCHAR2) AS

BEGIN

SELECT o.sname INTO v_name FROM student o where o.id = v_id;

END;

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使用JAVA调用带出入参存储过程

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package com.ljq.test;

import java.sql.CallableStatement;

import java.sql.Connection;

import java.sql.SQLException;

import java.sql.Types;

public class ProceTest {

public static void main(String[] args) throws Exception {

Connection conn = null;

CallableStatement statement = null;

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

try {

conn = ConnUtils.getConnection();

statement = conn.prepareCall(sql);

statement.setInt(1, 1);

statement.registerOutParameter(2, Types.VARCHAR);

statement.executeUpdate();

//输出：zhangsan

String sname = statement.getString(2);

System.out.println(sname);

} catch (SQLException e) {

e.printStackTrace();

}finally{

ConnUtils.free(null, statement, conn);

}

}

}