现将能用的代码贴出来，备份，以待后用。
实现的功能：备份全部数据库、备份两张数据表
需要前台传递进来一个备份标识：1：备份全部数据库，2：备份两张数据表
类名：IEEM060501Action.java
package com.jysd.ms.action;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Date;
import java.util.Properties;
import com.jysd.ms.exception.BaseException;
import com.jysd.ms.util.ReadSystemConfig;
import com.jysd.ms.util.TimeCountUtil;
import com.opensymphony.xwork2.ActionSupport;
public class IEEM060501Action extends ActionSupport {
private static final long serialVersionUID = 1L;
private Runtime runtime = Runtime.getRuntime();
private Process process = null ;
//返回前台数据
private String message;
//备份文件地址
private String backupUrl ;
//备份文件名
private String dmpName;
//备份方式
private int backupMode;
//备份类型
private int backupType;
private Properties properties = new Properties() ;
/**
* @方法名称: execute
* @描述: 数据备份管理初始化方法
* 创建人：
* @return String
* @param @return
*/
public String execute()throws BaseException{
InputStream in = ReadSystemConfig.class.getClassLoader().getResourceAsStream("backupOracle.properties");
try {
properties.load(in);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
backupUrl = properties.getProperty("backupurl");
return SUCCESS;
}
/**
* @方法名称: backup
* @描述: 备份数据库
* 创建人：
* @return String
* @param @return
* @param @throws BaseException
*/
public String backup()throws BaseException{
//从配置文件中读取数据库信息，并备份数据库
boolean backupFlag = backupOracleDB(getExpString());
if(backupFlag){
message="备份成功！";
}else{
message="备份失败！";
}
return "backJson";
}
/**
* @方法名称: backupOracleDB
* @描述: 备份、还原 oracle 数据库的方法
* 创建人：
* @return boolean
* @param @param cmdStr 备份命令 ( 即导出 )
* @param @return
*/
public boolean backupOracleDB(String cmdStr) {
boolean isSuccess = true;
try {
process = runtime .exec(cmdStr);
String line = null;
BufferedReader br = new BufferedReader(new InputStreamReader(process.getErrorStream()));
//读取ErrorStream很关键，这个解决了挂起的问题。
while ((line = br.readLine()) != null){
System.out.println(line);
}
br = new BufferedReader(new InputStreamReader(process.getInputStream()));
while ((line = br.readLine()) != null){
System.out.println(line);
}
//process.waitFor();
if(process.waitFor()!=0){
isSuccess = false;
}
}catch (Exception e) {
e.printStackTrace();
isSuccess = false;
}
return isSuccess ;
}
/**
* @方法名称: getLeftMenu
* @描述: 获取备份数据库的执行语句，备份文件名称，以当前时间命名
* @创建人：
* @return String
* @param @throws BaseException
*/
private String getExpString()throws BaseException{
StringBuffer sbu = new StringBuffer();
try {
InputStream in = ReadSystemConfig.class.getClassLoader().getResourceAsStream("backupOracle.properties");
properties.load(in);
sbu.append("exp ");
sbu.append(properties.getProperty("username")).append("/");
sbu.append(properties.getProperty("password")).append("@");
//sbu.append(properties.getProperty("ipaddress")).append("/");
sbu.append(properties.getProperty("databasename")).append(" file=");
sbu.append(properties.getProperty("backupurl"));
Date date = new Date();
if(dmpName==null){
dmpName = TimeCountUtil.dateToString(date,"yyyy.MM.dd.HH.mm.ss");
}else{
dmpName += TimeCountUtil.dateToString(date,"yyyy.MM.dd.HH.mm.ss");
}
dmpName = dmpName.replace(" ","");
dmpName = dmpName.replace(".dmp","");
sbu.append(dmpName).append(".dmp");
//等于2，仅备份监测数据（实时表、日结表数据）
if(backupMode==2)
sbu.append(" TABLES=(").append(properties.getProperty("realtable")).append(",").append(properties.getProperty("daytable")).append(")");
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(sbu.toString());
return sbu.toString();
}
/**
* 读取数据库信息
*/
/*private static Properties properties = new Properties() ;
static {
InputStream in = ReadSystemConfig.class.getClassLoader().getResourceAsStream("backupOracle.properties");
try {
properties.load(in);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}*/
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String getBackupUrl() {
return backupUrl;
}
public void setBackupUrl(String backupUrl) {
this.backupUrl = backupUrl;
}
public String getDmpName() {
return dmpName;
}
public void setDmpName(String dmpName) {
this.dmpName = dmpName;
}
public int getBackupMode() {
return backupMode;
}
public void setBackupMode(int backupMode) {
this.backupMode = backupMode;
}
public int getBackupType() {
return backupType;
}
public void setBackupType(int backupType) {
this.backupType = backupType;
}
}
backupOracle.properties
username=1234 password=1234 ipaddress=192.168.1.126 backupurl=D\:/ databasename=orcl realtable=table1 daytable=table2