JDBC 存储过程IN参数

JDBC教程 - JDBC 存储过程IN参数

以下示例显示如何使用in参数调用存储过程。

下面列出了用PL/SQL编写的Oracle存储过程。它向Person表插入一行。过程中的参数都标记为IN作为输入参数。

CREATE OR REPLACE PROCEDURE insertPERSON(
     p_userid IN PERSON.USER_ID%TYPE,
     p_username IN PERSON.USERNAME%TYPE,
     p_createdby IN PERSON.CREATED_BY%TYPE,
     p_date IN PERSON.CREATED_DATE%TYPE)
IS
BEGIN

  INSERT INTO PERSON ("USER_ID", "USERNAME", "CREATED_BY", "CREATED_DATE") 
  VALUES (p_userid, p_username,p_createdby, p_date);

  COMMIT;

END;
/

例子

以下代码从 Connection 创建一个 CallableStatement 并传递存储过程的名称。

存储过程的参数都标有问号。

然后参数从 CallableStatement 设置为setXXX方法的值。

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;

public class Main {
  private static final String DB_DRIVER = "oracle.jdbc.driver.OracleDriver";
  private static final String DB_CONNECTION = "jdbc:oracle:thin:@localhost:1521:YourDatabase";
  private static final String DB_USER = "user";
  private static final String DB_PASSWORD = "password";

  public static void main(String[] argv) throws Exception {
    Class.forName(DB_DRIVER);
    Connection dbConnection = DriverManager.getConnection(DB_CONNECTION, DB_USER,
        DB_PASSWORD);

    CallableStatement callableStatement = null;
    String insertStoreProc = "{call insertPERSON(?,?,?,?)}";

    java.util.Date today = new java.util.Date();
    callableStatement = dbConnection.prepareCall(insertStoreProc);
    callableStatement.setInt(1, 1000);
    callableStatement.setString(2, "name");
    callableStatement.setString(3, "system");
    callableStatement.setDate(4, new java.sql.Date(today.getTime()));

    callableStatement.executeUpdate();
    System.out.println("Record is inserted into PERSON table!");
    callableStatement.close();
    dbConnection.close();
  }
}