what is the difference between servlet and JSP? Please describe <% expr %> and <%! expr %> tags of JSP, when and where they get executed? -


संभावित डुप्लिकेट:

सर्वलेट और जेएसपी के बीच अंतर क्या है? कृपया & lt;% expr%> और & lt;% का वर्णन करें! एक्सपीआरपी> जेएसपी का टैग, कब और कहां निष्पादित होते हैं?

एक सर्वलेट एक जावा वर्ग है जावा सर्लेट एपीआई के अनुरूप है, एक प्रोटोकॉल जिसके द्वारा जावा वर्ग एचटीटीपी अनुरोधों का जवाब दे सकता है।

एक जेएसपी या जावा सर्वर पृष्ठ एक सर्वलेट है जो एक को आसानी से मार्कअप (HTML, Xml, आदि) और लिखना JSPs को सर्वलेट्स में संकलित किया जाता है, जिन्हें एचटीटीपी अनुरोधों के लिए निष्पादित किया जाता है

jsp पृष्ठों में घोषणाओं को जोड़ने के लिए प्रयोग किया जाता है

& lt;%%> कोड संकलित जेएसपी (जो एक सर्वलेट है) की सेवा पद्धति में जाती है और वहां निष्पादित होती है।

अधिक और


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