{"id":135303,"date":"2024-05-08T16:43:24","date_gmt":"2024-05-08T11:13:24","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=135303"},"modified":"2024-05-08T16:43:24","modified_gmt":"2024-05-08T11:13:24","slug":"how-to-create-login-servlet-with-database-part-2","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/","title":{"rendered":"How to Create Login Servlet With Database Part &#8211; 2"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">package dataflair;\r\n\r\nimport java.io.IOException;\r\nimport java.io.PrintWriter;\r\nimport java.sql.Connection;\r\nimport java.sql.DriverManager;\r\nimport java.sql.PreparedStatement;\r\nimport java.sql.ResultSet;\r\nimport java.sql.SQLException;\r\nimport javax.servlet.ServletException;\r\nimport javax.servlet.http.HttpServlet;\r\nimport javax.servlet.http.HttpServletRequest;\r\nimport javax.servlet.http.HttpServletResponse;\r\n\r\npublic class MyLogin extends HttpServlet {\r\n\r\n    protected void processRequest(HttpServletRequest request, HttpServletResponse response)\r\n            throws ServletException, IOException {\r\n        \r\n        PrintWriter out = response.getWriter();\r\n        try {\r\n            \/* TODO output your page here. You may use following sample code. *\/\r\n            out.println(\"&lt;!DOCTYPE html&gt;\");\r\n            out.println(\"&lt;html&gt;\");\r\n            out.println(\"&lt;head&gt;\");\r\n            out.println(\"&lt;title&gt;Servlet MyLogin&lt;\/title&gt;\");            \r\n            out.println(\"&lt;\/head&gt;\");\r\n            out.println(\"&lt;body&gt;\");\r\n            out.println(\"&lt;center&gt;\");\r\n            out.println(\"&lt;table border=1&gt;\");\r\n            out.println(\"&lt;form method=post action=MyLogin&gt;\");\r\n            \r\n            out.println(\"&lt;tr&gt;\");\r\n            out.println(\"&lt;th&gt;User Name: &lt;\/th&gt;\");\r\n            out.println(\"&lt;td&gt;&lt;input type=text name=txtuser&gt;&lt;\/td&gt;\");\r\n            out.println(\"&lt;\/tr&gt;\");\r\n            \r\n            out.println(\"&lt;tr&gt;\");\r\n            out.println(\"&lt;th&gt;Password: &lt;\/th&gt;\");\r\n            out.println(\"&lt;td&gt;&lt;input type=password name=txtpass&gt;&lt;\/td&gt;\");\r\n            out.println(\"&lt;\/tr&gt;\");\r\n            out.println(\"&lt;tr&gt;\");\r\n            out.println(\"&lt;td&gt;&lt;\/td&gt;\");\r\n            out.println(\"&lt;td&gt;&lt;input type=submit name=Submit&gt;\");\r\n            out.println(\"&lt;input type=reset name=Reset&gt;&lt;\/td&gt;\");\r\n            out.println(\"&lt;\/tr&gt;\");\r\n            out.println(\"&lt;\/form&gt;\");\r\n            out.println(\"&lt;\/table&gt;\");\r\n            out.println(\"&lt;\/center&gt;\");\r\n            out.println(\"&lt;\/body&gt;\");\r\n            out.println(\"&lt;\/html&gt;\");\r\n        }\r\n        catch(Exception e)\r\n        {\r\n              out.println(e);\r\n        }\r\n    }\r\n\r\n   \r\n    @Override\r\n    protected void doGet(HttpServletRequest request, HttpServletResponse response)\r\n            throws ServletException, IOException {\r\n        processRequest(request, response); \/\/ Design code\r\n    }\r\n\r\n    \r\n    @Override\r\n    protected void doPost(HttpServletRequest request, HttpServletResponse response)\r\n            throws ServletException, IOException \r\n    {\r\n       \r\n        processRequest(request, response);  \/\/ Design code\r\n        \r\n        PrintWriter out=response.getWriter();\r\n        Connection con=null;\r\n        PreparedStatement ps=null;\r\n        ResultSet rs=null;\r\n        try\r\n        {\r\n               Class.forName(\"com.mysql.jdbc.Driver\");\r\n              \/\/ out.println(\"Driver load successfully..........\");\r\n        }\r\n        catch(ClassNotFoundException e)\r\n        {\r\n            out.println(e); \r\n        }    \r\n        try\r\n        {\r\n            con = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost\/dataflair\", \"root\", \"root@data\");\r\n            \/\/   out.println(\"Database connection done successfully..........\");\r\n                      String user,pass;\r\n                      user=request.getParameter(\"txtuser\");\r\n                      pass=request.getParameter(\"txtpass\"); \r\n                String sql;\r\n                sql=\"select * from emplogin where userid=? and password=?\";\r\n                ps=con.prepareStatement(sql);\r\n                ps.setString(1, user);\r\n                ps.setString(2, pass);\r\n                rs=ps.executeQuery();\r\n                if(rs.next())\r\n                     response.sendRedirect(\"user.html\");\r\n                else\r\n                    out.println(\"&lt;font color=red size=4&gt;&lt;center&gt;Invalid user id or password&lt;\/center&gt;&lt;\/font&gt;\");\r\n                \r\n        }\r\n        catch(SQLException e)\r\n        {\r\n               out.println(e);\r\n        }    \r\n        \r\n         \r\n         \r\n    }\r\n\r\n    \r\n    @Override\r\n    public String getServletInfo() {\r\n        return \"Short description\";\r\n    }\/\/ &lt;\/editor-fold&gt;\r\n\r\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 package dataflair; import java.io.IOException; import java.io.PrintWriter; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class MyLogin extends HttpServlet { protected void&#46;&#46;&#46;<\/p>\n","protected":false},"author":86671,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31448],"tags":[31873,31871,31872,31932,31931,31930,31899],"class_list":["post-135303","post","type-post","status-publish","format-standard","hentry","category-advanced-java-tutorials","tag-advanced-java","tag-advanced-java-practical","tag-advanced-java-program","tag-login-application","tag-login-application-with-servlet","tag-login-application-with-servlet-and-database","tag-servlet"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Create Login Servlet With Database Part - 2 - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Create Login Servlet With Database Part - 2 - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 package dataflair; import java.io.IOException; import java.io.PrintWriter; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class MyLogin extends HttpServlet { protected void&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-05-08T11:13:24+00:00\" \/>\n<meta name=\"author\" content=\"TechVidvan Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"TechVidvan Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to Create Login Servlet With Database Part - 2 - DataFlair","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/","og_locale":"en_US","og_type":"article","og_title":"How to Create Login Servlet With Database Part - 2 - DataFlair","og_description":"Program 1 package dataflair; import java.io.IOException; import java.io.PrintWriter; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class MyLogin extends HttpServlet { protected void&#46;&#46;&#46;","og_url":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/","og_site_name":"DataFlair","article_publisher":"https:\/\/www.facebook.com\/DataFlairWS\/","article_published_time":"2024-05-08T11:13:24+00:00","author":"TechVidvan Team","twitter_card":"summary_large_image","twitter_creator":"@DataFlairWS","twitter_site":"@DataFlairWS","twitter_misc":{"Written by":"TechVidvan Team","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/#article","isPartOf":{"@id":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/"},"author":{"name":"TechVidvan Team","@id":"https:\/\/data-flair.training\/blogs\/#\/schema\/person\/0e594f928e31fc96628ac40f6ae74f49"},"headline":"How to Create Login Servlet With Database Part &#8211; 2","datePublished":"2024-05-08T11:13:24+00:00","mainEntityOfPage":{"@id":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/"},"wordCount":11,"commentCount":0,"publisher":{"@id":"https:\/\/data-flair.training\/blogs\/#organization"},"keywords":["advanced java","advanced java practical","advanced java program","login application","login application with servlet","login application with servlet and database","servlet"],"articleSection":["Advanced Java Tutorials"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/","url":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/","name":"How to Create Login Servlet With Database Part - 2 - DataFlair","isPartOf":{"@id":"https:\/\/data-flair.training\/blogs\/#website"},"datePublished":"2024-05-08T11:13:24+00:00","breadcrumb":{"@id":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/data-flair.training\/blogs\/how-to-create-login-servlet-with-database-part-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Blog Home","item":"https:\/\/data-flair.training\/blogs\/"},{"@type":"ListItem","position":2,"name":"Advanced Java Tutorials","item":"https:\/\/data-flair.training\/blogs\/category\/advanced-java-tutorials\/"},{"@type":"ListItem","position":3,"name":"How to Create Login Servlet With Database Part &#8211; 2"}]},{"@type":"WebSite","@id":"https:\/\/data-flair.training\/blogs\/#website","url":"https:\/\/data-flair.training\/blogs\/","name":"DataFlair","description":"Learn Today. Lead Tomorrow.","publisher":{"@id":"https:\/\/data-flair.training\/blogs\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/data-flair.training\/blogs\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/data-flair.training\/blogs\/#organization","name":"DataFlair","url":"https:\/\/data-flair.training\/blogs\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/data-flair.training\/blogs\/#\/schema\/logo\/image\/","url":"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2016\/07\/Data-Flair.png","contentUrl":"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2016\/07\/Data-Flair.png","width":106,"height":48,"caption":"DataFlair"},"image":{"@id":"https:\/\/data-flair.training\/blogs\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/DataFlairWS\/","https:\/\/x.com\/DataFlairWS","https:\/\/www.linkedin.com\/company\/dataflair-web-services-pvt-ltd\/","https:\/\/www.youtube.com\/user\/DataFlairWS"]},{"@type":"Person","@id":"https:\/\/data-flair.training\/blogs\/#\/schema\/person\/0e594f928e31fc96628ac40f6ae74f49","name":"TechVidvan Team","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/c89190da3d4010c71ba476b618ab10fdc2335c82cdfa0ad5002d98d0f2473444?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c89190da3d4010c71ba476b618ab10fdc2335c82cdfa0ad5002d98d0f2473444?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/c89190da3d4010c71ba476b618ab10fdc2335c82cdfa0ad5002d98d0f2473444?s=96&d=mm&r=g","caption":"TechVidvan Team"},"description":"TechVidvan Team provides high-quality content &amp; courses on AI, ML, Data Science, Data Engineering, Data Analytics, programming, Python, DSA, Android, Flutter, full stack web dev, MERN, and many latest technology.","url":"https:\/\/data-flair.training\/blogs\/author\/test001\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/posts\/135303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/users\/86671"}],"replies":[{"embeddable":true,"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/comments?post=135303"}],"version-history":[{"count":4,"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/posts\/135303\/revisions"}],"predecessor-version":[{"id":136978,"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/posts\/135303\/revisions\/136978"}],"wp:attachment":[{"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/media?parent=135303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/categories?post=135303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/data-flair.training\/blogs\/wp-json\/wp\/v2\/tags?post=135303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}