常见分布式应用模式 ° Web applications Firewall Http Servers Business ogIc CGI/ Servlets Data sto User Interface interaction initiated by user UI based on HTML, Java, Javascript,etc CGI/Servlet composes HTML, forwards interaction requests to business logic Distributed Systems FrameworksDistributed Systems Frameworks 11 常见分布式应用模式  Web Applications  interaction initiated by user  UI based on HTML, Java, Javascript, etc.  CGI/Servlet composes HTML, forwards interaction requests to business logic Business Logic User Interface Data Store Firewall HTTP Servers CGI / Servlets