Arbotext Publishing Engine Programmer's Guide (《Arbortext Publishing Engine 程序员指南》) > The Arbortext Publishing Engine Request Manager > Predefined Dynamic Components > Predefined Request Functions > The f=java Request
  
The f=java Request
This request function is mapped to the Java class com.arbortext.e3.FunctionJava. It allocates an Arbortext PE 子进程 and invokes an Arbortext PE 应用程序 written in Java, returning whatever response the Arbortext PE 应用程序 generates.
The Java Arbortext PE 应用程序 is identified by the class parameter, which must specify the name of the Java class to be invoked. All other query parameters, along with the rest of the HTTP request, are passed to the Arbortext PE 应用程序 for processing. The Java class must be configured in the Allowed Function List (see The Allowed Functions List) in e3config.xml or the Arbortext PE Request Manager will return an error message. The request is structured like the following:
f=java&class=classname&parameter1=value1&parameter2=value2
For more information, refer to Writing Arbortext PE 应用程序s in Java.