Replay method and system for mobile Web applications

The invention discloses a replay method for mobile Web applications. The method comprises the following steps of: a recording stage: comprehensively recording uncertainty sources influencing a program state, and recording the uncertainty sources in a log; and a replay stage: replaying the uncertainty sources according to the log so as to ensure that the program execution state is consistent with the program state during the recording and then ensure the time precision. The invention furthermore provides a replay system for mobile Web applications. According to the method and system, the uncertainty sources influencing the program operation states are comprehensively recorded, and the recorded uncertainty sources can be accurately and certainly replayed, so as to ensure that the program states in the replay stage are same as the program states in the recording stage. By utilizing the method and system, the mobile application developers can record the user behaviors and replay the application states, and user b