How do I update an existing page on confluence? - confluence

Question

I am using the following code to create a page on Confluence 4.3:
public void publish() throws IOException {
DateFormat df = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
Date today = Calendar.getInstance().getTime();
XWikiXmlRpcClient rpc = new XWikiXmlRpcClient(CONFLUENCE_URI);
try {
rpc.login(USER_NAME, PASSWORD);
Page page = new Page();
page.setSpace(owrConf.getString(ConfigKeys.CONFLUENCE_SPACE));
page.setTitle(owrConf.getString(ConfigKeys.CONFLUENCE_PAGE_TITLE) + "_" + df.format(today));
List<String> lines = Files.readAllLines(Paths.get("summary.markup"), Charset.defaultCharset());
StringBuilder b = new StringBuilder();
for(int i=0; i < lines.size(); i++) {
b.append(String.format("%s%s", lines.get(i), "\r\n"));
}
page.setContent(b.toString());
page.setParentId(owrConf.getString(ConfigKeys.CONFLUENCE_PAGE_ID));
rpc.storePage(page);
} catch (XmlRpcException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
This works fine, but I am just wondering if I can update an existing page instead of always creating a new one. I can't find API information for Confluence 4.3 to do this.

Answer 1

Take a look at this post that updates a page with Python and XMLRPC.
How can I create a new page to confluence with Python
You can also look at this page
https://answers.atlassian.com/questions/316106/how-to-update-a-page-in-confluence-by-java
But really in 2015 you should be using the Confluence REST API to do this kind of stuff. Make a simple post to this url with some JSON data and your page is updated
https://docs.atlassian.com/atlassian-confluence/REST/latest/#d3e941
Update:
XWikiXmlRpcClient rpc = new XWikiXmlRpcClient(url);
try {
//Perform Login & Authentication
rpc.login(user, pass);
//Create a Page object to hold our Document information
Page page = new Page();
//Fetch the required page. In our example, the page is in Space "demo code"
//and the Page is "Update Page"
page=rpc.getPage("demo code.Update Page");
//Fetch the content of the page & store it in a string for temporary storage
//This is the present content of the Page
String presentContent=page.getContent();
//Create a string that will hold the new content that is to be added to the Page
String newContent="\\\\Some new content added";
//Set the content of the page as: present content + new content
//However, this page is not yet stored to XWiki. It only resides in your application
page.setContent(presentContent+newContent);
//Finally, store the "updated" Page to XWiki
rpc.storePage(page);
//Just to make sure everything saved all right, fetch the content again for the Page
System.out.println(page.getContent());
} catch (XmlRpcException e) {
System.out.println("invalid username/password was specified or communication problem or ");
System.out.println(e);
} finally {
rpc.logout();
}
Got this from this page: http://extensions.xwiki.org/xwiki/bin/view/Extension/XML-RPC+Integration+Java+Examples