{"id":1439,"date":"2011-02-04T22:47:49","date_gmt":"2011-02-04T17:17:49","guid":{"rendered":"http:\/\/JitendraZaa.com\/blog\/?p=1439"},"modified":"2011-02-04T22:47:49","modified_gmt":"2011-02-04T17:17:49","slug":"difference-in-httpservlet-and-genericservlet","status":"publish","type":"post","link":"https:\/\/www.jitendrazaa.com\/blog\/java\/difference-in-httpservlet-and-genericservlet\/","title":{"rendered":"Difference in HttpServlet and GenericServlet"},"content":{"rendered":"

javax.servlet.GenericServlet<\/strong><\/p>\n

Signature: <\/strong><\/p>\n

\npublic abstract class GenericServlet extends java.lang.Object implements Servlet, ServletConfig, java.io.Serializable\n<\/pre>\n
    \n
  1. GenericServlet defines a generic, protocol-independent servlet<\/strong>.<\/li>\n
  2. GenericServlet gives a blueprint and makes writing servlet easier.<\/li>\n
  3. GenericServlet provides simple versions of the lifecycle methods init and destroy and of the methods in the ServletConfig interface.<\/li>\n
  4. To write a generic servlet, it is sufficient to override the abstract service method<\/strong>.<\/li>\n<\/ol>\n
    <\/p>\n
    javax.servlet.http.HttpServlet<\/strong><\/p>\n
    Signature: <\/strong><\/p>\n
    \npublic abstract class HttpServlet extends GenericServlet implements java.io.Serializable\n<\/pre>\n
      \n
    1. HttpServlet defines a HTTP protocol specific servlet.<\/strong><\/li>\n
    2. HttpServlet gives a blueprint for Http servlet and makes writing them easier.<\/li>\n
    3. HttpServlet extends the GenericServlet and hence inherits the properties of GenericServlet.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
      What is the basic Difference in HttpServlet and GenericServlet<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"jz_research_post":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3,11],"tags":[125],"class_list":["post-1439","post","type-post","status-publish","format-standard","hentry","category-java","category-servlet","tag-j2ee"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":2017,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/java-j2ee-interview-questions-1\/","url_meta":{"origin":1439,"position":0},"title":"Java – J2EE Interview Questions – 1","author":"Jitendra","date":"April 15, 2011","format":false,"excerpt":"JAVA - J2EE Interview Questions - 1, JAVA - J2EE Interview Questions - 1,custom tag JSP, Externalization , serialVersionUID, difference between interface and abstract class, iterate HashMap","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1959,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/servlet\/create-servlet-using-annotation\/","url_meta":{"origin":1439,"position":1},"title":"Create Servlet using Annotation – Servlet 3.0","author":"Jitendra","date":"April 13, 2011","format":false,"excerpt":"Create the Servlet without any deployment descriptor. Using Annotations","rel":"","context":"In "Servlet"","block_context":{"text":"Servlet","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/servlet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1467,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/servlet\/difference-between-servletcontext-and-servletconfig\/","url_meta":{"origin":1439,"position":2},"title":"Difference between servletContext and ServletConfig","author":"Jitendra","date":"February 8, 2011","format":false,"excerpt":"What is difference between servletContext and ServletConfig?","rel":"","context":"In "Servlet"","block_context":{"text":"Servlet","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/servlet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1479,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/servlet\/example-to-override-the-init-method-of-the-servlet\/","url_meta":{"origin":1439,"position":3},"title":"Example to Override the init() method of the servlet","author":"Jitendra","date":"February 11, 2011","format":false,"excerpt":"Example to Override the init() method of the servlet","rel":"","context":"In "Servlet"","block_context":{"text":"Servlet","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/servlet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1477,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/servlet\/why-not-to-write-constructor-in-servlet\/","url_meta":{"origin":1439,"position":4},"title":"Why not to write constructor in Servlet","author":"Jitendra","date":"February 11, 2011","format":false,"excerpt":"Why not to write constructor in Servlet","rel":"","context":"In "Servlet"","block_context":{"text":"Servlet","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/servlet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3150,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/merge-pdf-in-salesforce-using-java-itextpdf-and-oauth-2\/","url_meta":{"origin":1439,"position":5},"title":"Merge PDF in Salesforce Using Java, ITextPDF and OAuth 2","author":"Jitendra","date":"December 9, 2012","format":false,"excerpt":"Its long time, since i wrote any article because of my busy schedule However this time i came with advance one. In this article we are going to use the J2EE (Servlet) to Merge PDF attachment inside salesforce with the help of OAuth and ITextPDF jar file. The reason of\u2026","rel":"","context":"In "Apex"","block_context":{"text":"Apex","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/salesforce\/apex\/"},"img":{"alt_text":"Create Remote Access in Salesforce.com for OAuth 2","src":"https:\/\/i0.wp.com\/jitendrazaa.com\/blog\/wp-content\/uploads\/2012\/12\/Create-Remote-Access-in-Salesforce.com_.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/jitendrazaa.com\/blog\/wp-content\/uploads\/2012\/12\/Create-Remote-Access-in-Salesforce.com_.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/jitendrazaa.com\/blog\/wp-content\/uploads\/2012\/12\/Create-Remote-Access-in-Salesforce.com_.png?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/posts\/1439","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/comments?post=1439"}],"version-history":[{"count":0,"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/posts\/1439\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/media?parent=1439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/categories?post=1439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jitendrazaa.com\/blog\/wp-json\/wp\/v2\/tags?post=1439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}