java导入导出dmp文件

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最新推荐文章于 2025-05-11 23:25:50 发布

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分类专栏： java技术文章标签： java 数据库 runtime

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本文介绍如何使用Java实现Oracle数据库的数据导出和导入操作，包括使用exp和imp命令，通过命令行执行SQL脚本，以及处理导出和导入过程中的错误信息。

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package com.broada.oracle.export;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class JavaOracle {
	public static void main(String[] args) {
		//expFile();
		impFile("COSS_R2_CHENXING_NSBD_0624");
	}

	// 从oracle导出
	public static void expFile() {
		String[] cmds = new String[3];
		String commandBuf = "exp COSS_R2_CHENXING_NSBD_0605/coss@220 file=c://test.dmp log=c://test.log";
		cmds[0] = "cmd";
		cmds[1] = "/C";
		cmds[2] = commandBuf.toString();
		Process process = null;
		try {
			process = Runtime.getRuntime().exec(cmds);
		} catch (IOException e) {
			e.printStackTrace();
		}
		boolean shouldClose = false;
		try {
			InputStreamReader isr = new InputStreamReader(process.getErrorStream());
			BufferedReader br = new BufferedReader(isr);
			String line = null;
			
			//打印出读取的oracle导出信息
			while ((line = br.readLine()) != null) {
				System.out.println(line);
				if (line.indexOf("????") != -1) {
					shouldClose = true;
					break;
				}
			}
		} catch (IOException ioe) {
			shouldClose = true;
		}
		if (shouldClose)
			process.destroy();
		int exitVal;
		try {
			exitVal = process.waitFor();
			System.out.print(exitVal);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}

	// 导入oracle
	public static void impFile(String user) {
		String[] cmds = new String[3];
		String commandBuf = "imp system/broada123@220 fromuser=COSS_R2_CHENXING_NSBD_0605 touser=" + user
				+ " file=c://test.dmp ignore=y";
		cmds[0] = "cmd";
		cmds[1] = "/C";
		cmds[2] = commandBuf.toString();
		Process process = null;
		try {
			process = Runtime.getRuntime().exec(cmds);
		} catch (IOException e) {
			e.printStackTrace();
		}
		boolean shouldClose = false;
		try {
			InputStreamReader isr = new InputStreamReader(process.getErrorStream());
			BufferedReader br = new BufferedReader(isr);
			String line = null;
			while ((line = br.readLine()) != null) {
				System.out.println(line);
				if (line.indexOf("????") != -1) {
					shouldClose = true;
					break;
				}
			}
		} catch (IOException ioe) {
			shouldClose = true;
		}
		if (shouldClose)
			process.destroy();
		int exitVal;
		try {
			exitVal = process.waitFor();
			System.out.print(exitVal);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}
}