1. A method for processing a request message, comprising: receiving and parsing a request message sent by a request end, and obtaining a script name corresponding to the request message and a message type of the request message, wherein the message type is one of an initialization message and a non-initialization message; obtaining at least one target server of the request message according to a server list corresponding to the script name and the message type, and forwarding the request message to the at least one target server; receiving a response message returned by a first target server of the at least one target server after the first target server executes a script corresponding to the script name: and returning the response message that satisfies a return condition to the request end; wherein after the obtaining the at least one target server of the request message according to the server list corresponding to the script name and the message type and forwarding the request message to the at least one target server, further comprising: setting a time stamp of the first target server of the at least one target server recorded in the server list to a current time; periodically receiving a script list that is not run reported by the first target server; comparing a report time of the first target server and the time stamp of the first target server recorded in the server list corresponding to the script name; deleting an address of the first target server in the server list if the report time is later than the time stamp; receiving at least one rejection message from the at least one target server; and returning a last received rejection message of the at least one rejection message to the request end.