LoadRunner 培训教程09UndrstndgRecordPlaybk.ppt

Objectives In this lesson, you will learn: The two types of data sent between browser and server How an HTTP request is made The different ways VuGen captures HTTP requests When VuGen records web_submit_form vs.web_submit_data Two Types of Data Sent Between the Browser and Server USER DEFINED - data established as a result of a user action Two Types of Data Sent Between the Browser and Server HIDDEN - data which the user can’t see and is used by the web site to decide what to return HTTP Requests Key Terms Used in This Course Primary Operations in HTTP Requests POST method usually contains user-defined data GET method usually requests an HTML or image file HTTP Request POST Method HTTP Request GET Method How Is an HTTP Request Produced? HTML JavaScript Java Applet ActiveX Third-party programs HTTP Request Produced By HTML HTTP Request Produced By JavaScript VuGenRecording Process How VuGen Records HTTP Requests VuGen Recording ProcessBrowser Launched and Proxies Set How VuGen Records HTTP Requests 2. VuGen stores the page returned by the server in the Record Proxy cache. VuGen Recording ProcessReturned Page Stored in Cache How VuGen Records HTTP Requests 2. VuGen stores the page returned by the server in the Record Proxy cache. VuGen Recording ProcessNew Request Compared to Cache Comparing HTTP Request Produced by JavaScript How VuGen RecordsHTTP Requests 2. VuGen stores the page returned by the server in the Record Proxy cache. VuGen Recording Process4. Recording Based on Comparison VuGen Recording Process4. Recording Based on Comparison Context Sensitive vs. Analog Context Sensitive vs. Analog Context Sensitive Statements VuGenPlayback Process How Does VuGen Playback Statements? How Does VuGen Playback Statements? How Does VuGen Playback Statements? Benefits of Context Sensitive Statements Action tag values and hidden data are NOT hard coded They are retrieved from memory during playback If they are dynamic the Vuser still runs Summary Da