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This article will explain in detail what is the difference between SaveDataPage and SaveFilePage. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

1. The difference between SaveFilePage and SaveDataPage:

SaveFilePage: the specified page can accept binary file stream and form field, and save the modified file directly.

SaveDataPage: the specified page can receive Word data areas, Excel table data, and form fields submitted by the page.

SaveFilePage: only FileServer objects can be created on the specified page.

SaveDataPage: the specified page can only create objects under the PageOffice.ExcelReader or PageOffice.WordReader namespace.

The use of SaveFilePage: only need to save the modified document, but do not need to extract the contents of the document.

The use of SaveDataPage: when you need to submit the document content or the document content entered by the user.

two。 Save both data and document

Take the online processing of Word documents with Java development language as an example.

The code to open the file:

PageOfficeCtrl poCtrl = new PageOfficeCtrl (request); poCtrl.setServerPage (request.getContextPath () + "/ poserver.zz"); … . PoCtrl.setSaveDataPage ("SaveData.jsp"); / / set the page to save the data poCtrl.setSaveFilePage ("SaveFile.jsp"); / / set the page to save the file / / open the Word document, to save the data, the mode of opening the document here must be docSubmitForm mode. PoCtrl.webOpen ("doc/test.doc", OpenModeType.docSubmitForm, "Zhang Anonymous")

The code for SaveData.jsp to obtain data:

WordDocument doc = new WordDocument (request, response); / / get the submitted value DataRegion dataUserName = doc.openDataRegion ("PO_userName"); DataRegion dataDeptName = doc.openDataRegion ("PO_deptName"); …. Doc.close ()

SaveFile.jsp saves the code for the document:

FileSaver fs=new FileSaver (request,response); fs.saveToFile (request.getRealPath ("doc/") + "/" + fs.getFileName ()); fs.close ()

Note: for the complete code and detailed demonstration of this example, please refer to the basic functions of Samples4.

I. 28. Save both the data in the specified location in the Word document and the entire document (take Word as an example)

three。 Transactional implementation of saving documents and data

At this point in the code, we may wonder, if the data fails, will PageOffice still save the document? does PageOffice save the data first? Or should I save the document first? Can transaction control be used to solve this problem? Let's talk about the mechanism of saving data and documents in PageOffice.

The saving mechanism of PageOffice is to save the data first, and then save the file. If it is controlled by a transaction, it cannot be realized, because there are two servlet for processing the page that saves the data and the page for saving the document, or two different action, which is not in line with the transaction mechanism, but we can simulate the implementation of a "transaction", such as setting a field in the database to identify this state, if flag is used to represent it. The initial value is also false When the data is saved successfully, the flag is true, and the failure is flag is false. Then we go to the page where the file is saved to determine whether the data is saved successfully according to the value of flag, and then determine whether to save the file.

About what the difference between SaveDataPage and SaveFilePage is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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