2007年7月6日
通过exp导出与imp导入进行数据的备份转移:
exp命令:
1 exp username/psw@TEST file=d:test.dmp full=y
2 exp username/psw@TEST file=d:test.dmp owner=(ly)
3 exp username/psw@TEST file= d:test.dmp tables=(grid1,grid2)
1其中一是将Test(与某一数据库对应的oracle服务名)数据库进行整体导出
2将属于用户ly的所有表导出
3将表grid1,与grid2导出
d:test.dmp是导出的文件地址
imp命令:
1 imp system/psw@TEST file=d:test.dmp
2 imp system/psw@TEST full=y file=d:test.dmp ignore=y
3 imp system/psw@TEST file=d:test.dmp tables=(grid1)
ignore=y表示如果被导入的数据库中某个表已经存在就忽略不导入那个表
3表示只导入grid1这个表
在导入导出前要先测试下对应的数据库是否是通的:tnsping test来测试,同样test是服务名
所有命令可在cmd下执行
http://blog.csdn.net/techyang/archive/2005/08/09/448677.aspx(luanfengxia/arc/2006/05/20/746951.aspx)
public ActionForward add(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws Exception {
String encoding = request.getCharacterEncoding();
if ((encoding != null) && (encoding.equalsIgnoreCase("utf-8")))
{
response.setContentType("text/html; charset=gb2312");//如果没有指定编码,编码格式为gb2312
}
NodeForm theForm = (NodeForm) form;
String nodename=theForm.getNodename();
String note=theForm.getNote();
FormFile file = theForm.getTheFile1();//取得上传的文件
FormFile file2=theForm.getTheFile2();
FormFile file3=theForm.getTheFile3();
Session session=null;
String forward="";
try
{
/*
* 取当前系统路径
*/
String filePath = this.getServlet().getServletContext()
.getRealPath("/");
System.out.println("---------------------------------------"+filePath);
if(file.getFileSize()!=0){
ByteArrayInputStream stream = (ByteArrayInputStream) file.getInputStream();//把文件读入
//ByteArrayOutputStream baos = new ByteArrayOutputStream();
/*
* 建立一个上传文件的输出流
*/
OutputStream bos = new FileOutputStream(filePath +
"UploadFiles\\"+file.getFileName());
request.setAttribute("fileName",filePath + "/"
+ file.getFileName());
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = stream.read(buffer, 0, 8192)) != -1)
{
bos.write(buffer, 0, bytesRead);//将文件写入服务器
}
bos.close();
stream.close();
}if(file2.getFileSize()!=0){
ByteArrayInputStream stream2 = (ByteArrayInputStream) file2.getInputStream();
OutputStream bos2 = new FileOutputStream(filePath +
"UploadFiles\\"+file2.getFileName());//建立一个上传文件的输出流
int bytesRead2 = 0;
byte[] buffer2 = new byte[8192];
while ((bytesRead2 = stream2.read(buffer2, 0, 8192)) != -1)
{
bos2.write(buffer2, 0, bytesRead2);//将文件写入服务器
}
bos2.close();
stream2.close();
}if(file3.getFileSize()!=0){
ByteArrayInputStream stream3 = (ByteArrayInputStream) file3.getInputStream();//把文件读入
OutputStream bos3 = new FileOutputStream(filePath +
"UploadFiles\\"+file3.getFileName());//建立一个上传文件的输出流
int bytesRead3 = 0;
byte[] buffer3 = new byte[8192];
while ((bytesRead3 = stream3.read(buffer3, 0, 8192)) != -1)
{
bos3.write(buffer3, 0, bytesRead3);//将文件写入服务器
}
bos3.close();
stream3.close();
}
Configuration config = new Configuration().configure();
SessionFactory factory = config.buildSessionFactory();
session = factory.openSession();
Transaction transaction = session.beginTransaction();
Node node=new Node();
node.setNodeName(nodename);
node.setXsdName(file.getFileName());
node.setXslName(file2.getFileName());
node.setXhtmlName(file3.getFileName());
node.setNote(note);
session.save(node);
session.flush();
session.clear();
forward="display";
transaction.commit();
}
catch (Exception e)
{
forward="error";
System.err.print(e);
e.printStackTrace();
}
finally{
session.close();
}
return mapping.findForward(forward);
}
"^\\d+$" //非负整数(正整数 + 0)
"^[0-9]*[1-9][0-9]*$" //正整数
"^((-\\d+)|(0+))$" //非正整数(负整数 + 0)
"^-[0-9]*[1-9][0-9]*$" //负整数
"^-?\\d+$" //整数
"^\\d+(\\.\\d+)?$" //非负浮点数(正浮点数 + 0)
"^(([0-9]+\\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\\.[0-9]+)|([0-9]*[1-9][0-9]*))$" //正浮点数
"^((-\\d+(\\.\\d+)?)|(0+(\\.0+)?))$" //非正浮点数(负浮点数 + 0)
"^(-(([0-9]+\\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\\.[0-9]+)|([0-9]*[1-9][0-9]*)))$" //负浮点数
"^(-?\\d+)(\\.\\d+)?$" //浮点数
"^[A-Za-z]+$" //由26个英文字母组成的字符串
"^[A-Z]+$" //由26个英文字母的大写组成的字符串
"^[a-z]+$" //由26个英文字母的小写组成的字符串
"^[A-Za-z0-9]+$" //由数字和26个英文字母组成的字符串
"^\\w+$" //由数字、26个英文字母或者下划线组成的字符串
"^[\\w-]+(\\.[\\w-]+)*@[\\w-]+(\\.[\\w-]+)+$" //email地址
"^[a-zA-z]+://(\\w+(-\\w+)*)(\\.(\\w+(-\\w+)*))*(\\?\\S*)?$" //url