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我有一個有趣的需求。Oracle Java存儲過程命令行交互
我們需要在Java存儲過程中進行命令行交互。儘管使用dbms_java.grant_permission
命令授予適當的權限,但我遇到java.io.IOException
,其中我使用java.io.InputStreamReader
從System.in
讀取。
問題在哪裏?
Java源代碼是在這裏:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.Connection;
import java.sql.SQLException;
import oracle.jdbc.driver.OracleDriver;
public class ExecuteInteractiveBatch {
public static void aFunction() {
Connection connection = null;
try {
int rowFetched = 0;
connection = new OracleDriver().defaultConnection();
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT count(1) cnt from sometable where c = 2");
int count = 0;
if (rs.next()) {
count = rs.getInt(1);
}
rs.close();
stmt.close();
rs = null;
stmt = null;
if (count == 1) {
System.out.println("Do you want to continue?");
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String response = reader.readLine();
if ("Y".equalsIgnoreCase(response)) {
stmt = connection.createStatement();
int rowsAffected = stmt.executeUpdate("DELETE from sometable where c=2");
System.out.println("" + rowsAffected + " row(s) deleted");
stmt.close();
}
}
} catch (IOException ex) {
ex.printStackTrace();
} catch (SQLException ex) {
ex.printStackTrace();
} finally {
try {
if (connection != null || !connection.isClosed()) {
connection.close();
}
} catch (SQLException ex) {
ex.printStackTrace();
}
}
}
}
問題在哪裏?可能在堆棧跟蹤中,您未包括該問題。 :) – 2009-07-21 13:53:47