Comparing Struts 1 and 2

Feature : Threading Model

Struts 2 Action objects are instantiated for each request, so there are no thread-safety issues. (In practice, servlet containers generate many throw-away objects per request, and one more object does not impose a performance penalty or impact garbage collection.)

Struts 1 Actions are singletons and must be thread-safe since there will only be one instance of a class to handle all requests for that Action. The singleton strategy places restrictions on what can be done with Struts 1 Actions and requires extra care to develop. Action resources must be thread-safe or synchronized.

Source: http://struts.apache.org/2.0.14/docs/comparing-struts-1-and-2.html

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About kaanmutlu

Software Developer - Computer Engineer from Istanbul, Turkey
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