A blog reader can only obtain the content on the first page, and the historical content cannot be obtained. You can also use Google API to obtain historical records because Google has saved historical records in its own database.
For specific parameters, refer
Http://code.google.com/p/pyrfeed/wiki/GoogleReaderAPI
URLExample:
Http://www.google.com/reader/atom/feed/http:/www.cnblogs.com/rock_chen/rss? N = 10
Parameters: (from API)
Get parameter name |
Python Google Reader API name |
Parameter Value |
N |
Count |
Number of items returns in a set of items (default 20) |
Client |
Client |
The default client name (seeClientIn Glossary) |
R |
order |
by default, items starts now, and go back time. you can change that by specifying this key to the value O (default value is d ) |
OT |
Start_time |
The time (UNIX time, number of seconds from January 1st, 1970 00:00 UTC) from which to start to get items. only works for order r = o mode. if the time is older than one month ago, one month ago will be used instead. |
CK |
Timestamp |
Current time stamp, probably used as a quick hack to be sure that cache won't be triggered. |
XT |
Exclude_target |
another set of items suffix, to be excluded from the query. for exemple, you Can query all items from a feed that are not flagged as read. this value start with feed/ or User/ , not with ! Http: // or WWW |
C |
Continuation |
A string usedContinuationProcess. Each feed return not all items, but only a certain number of items. You'll find in the atom feed (under the nameGR: Continuation) A String called continuation. Just add that string as argument for this parameter, and you'll retrieve next items. |