{"id":135363,"date":"2024-05-09T12:27:58","date_gmt":"2024-05-09T06:57:58","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=135363"},"modified":"2024-05-09T12:27:58","modified_gmt":"2024-05-09T06:57:58","slug":"web-based-sql-query-browser","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/web-based-sql-query-browser\/","title":{"rendered":"Advanced Java Project – Web Based SQL Query Browser"},"content":{"rendered":"

Program 1<\/h3>\n
package browser;\r\n\r\nimport java.io.IOException;\r\nimport java.io.PrintWriter;\r\nimport javax.servlet.ServletException;\r\nimport javax.servlet.http.HttpServlet;\r\nimport javax.servlet.http.HttpServletRequest;\r\nimport javax.servlet.http.HttpServletResponse;\r\nimport java.sql.*;\r\npublic class SQLQueryBrowser extends HttpServlet {\r\n\r\n    protected void processRequest(HttpServletRequest request, HttpServletResponse response)\r\n            throws ServletException, IOException {\r\n        response.setContentType(\"text\/html;charset=UTF-8\");\r\n        try (PrintWriter out = response.getWriter()) {\r\n            \/* TODO output your page here. You may use following sample code. *\/\r\n            out.println(\"<!DOCTYPE html>\");\r\n            out.println(\"<html>\");\r\n            out.println(\"<head>\");\r\n            out.println(\"<title>Servlet SQLQueryBrowser<\/title>\");            \r\n            out.println(\"<\/head>\");\r\n            out.println(\"<body>\");\r\n            out.println(\"<h1>Servlet SQLQueryBrowser at \" + request.getContextPath() + \"<\/h1>\");\r\n            out.println(\"<\/body>\");\r\n            out.println(\"<\/html>\");\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    {\r\n            PrintWriter out = response.getWriter();\r\n            out.println(\"<html>\");\r\n            out.println(\"<head>\");\r\n            out.println(\"<title>Servlet SQLQueryBrowser<\/title>\");            \r\n            out.println(\"<\/head>\");\r\n            out.println(\"<body>\");\r\n            out.println(\"<center>\");\r\n            out.println(\"<font color=red size=7>S<\/font>\");\r\n            out.println(\"<font color=black size=7>Q<\/font>\");\r\n            out.println(\"<font color=green size=7>L<\/font>\");\r\n            out.println(\"<font color=red size=7>B<\/font>\");\r\n            out.println(\"<font color=yellow size=7>R<\/font>\");\r\n            out.println(\"<font color=blue size=7>O<\/font>\");\r\n            out.println(\"<font color=red size=7>W<\/font>\");\r\n            out.println(\"<font color=blue size=7>S<\/font>\");\r\n            out.println(\"<font color=green size=7>E<\/font>\");\r\n            out.println(\"<font color=black size=7>R<\/font>\");\r\n            \r\n            out.println(\"<form method=post action=SQLQueryBrowser>\");\r\n            out.println(\"<textarea rows=20 cols=100 name=txtsql><\/textarea>\");\r\n            out.println(\"<br>\");\r\n            out.println(\"<input type=submit value=Execute>\");\r\n            out.println(\"<\/form>\");\r\n            \r\n            out.println(\"<\/center>\");\r\n            out.println(\"<\/body>\");\r\n            out.println(\"<\/html>\");\r\n              \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            PrintWriter out = response.getWriter();\r\n         try\r\n         {    \r\n            out.println(\"<html>\");\r\n            out.println(\"<head>\");\r\n            out.println(\"<title>Servlet SQLQueryBrowser<\/title>\");            \r\n            out.println(\"<\/head>\");\r\n            out.println(\"<body>\");\r\n            out.println(\"<center>\");\r\n            out.println(\"<font color=red size=7>S<\/font>\");\r\n            out.println(\"<font color=black size=7>Q<\/font>\");\r\n            out.println(\"<font color=green size=7>L<\/font>\");\r\n            out.println(\"<font color=red size=7>B<\/font>\");\r\n            out.println(\"<font color=yellow size=7>R<\/font>\");\r\n            out.println(\"<font color=blue size=7>O<\/font>\");\r\n            out.println(\"<font color=red size=7>W<\/font>\");\r\n            out.println(\"<font color=blue size=7>S<\/font>\");\r\n            out.println(\"<font color=green size=7>E<\/font>\");\r\n            out.println(\"<font color=black size=7>R<\/font>\");\r\n            out.println(\"<form method=post action=SQLQueryBrowser>\");\r\n            out.println(\"<textarea rows=20 cols=100 name=txtsql><\/textarea>\");\r\n            out.println(\"<br>\");\r\n            out.println(\"<input type=submit value=Execute>\");\r\n            out.println(\"<\/form>\");\r\n            \r\n            String sql;\r\n            sql=request.getParameter(\"txtsql\");\r\n           \/\/ out.println(sql);\r\n            Connection con=null;\r\n            PreparedStatement ps=null;\r\n            ResultSet rs=null;\r\n            ResultSetMetaData rsmd=null;\r\n            Class.forName(\"com.mysql.jdbc.Driver\");\r\n            con=DriverManager.getConnection(\"jdbc:mysql:\/\/localhost\/dataflair\",\"root\",\"root@data\");\r\n            ps=con.prepareStatement(sql);\r\n             if(sql.toUpperCase().startsWith(\"SELECT\"))\r\n             {\r\n                rs=ps.executeQuery();\r\n                rsmd=rs.getMetaData();\r\n                \/\/out.println(rsmd.getColumnCount());\r\n                out.println(\"<table border=1>\");\r\n                \r\n                out.println(\"<tr>\");\r\n                for(int i=1;i<=rsmd.getColumnCount();i++)\r\n                out.println(\"<th>\"+rsmd.getColumnName(i)+\"<\/th>\");\r\n                out.println(\"<\/tr>\");\r\n                while(rs.next())\r\n                {\r\n                   out.println(\"<tr>\");\r\n                   for(int i=1;i<=rsmd.getColumnCount();i++)\r\n                     out.println(\"<td>\"+rs.getString(i)+\"<\/td>\");\r\n                   out.println(\"<\/tr>\");\r\n                }    \r\n                \r\n                out.println(\"<\/table>\");\r\n             }   \r\n            else\r\n             {\r\n                  int n=0;\r\n                  n=ps.executeUpdate();\r\n                  out.println(\"<B>record affect: <\/B>\" +n);\r\n             }  \r\n             \r\n            out.println(\"<\/center>\");\r\n            out.println(\"<\/body>\");\r\n            out.println(\"<\/html>\");\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    public String getServletInfo() {\r\n        return \"Short description\";\r\n    }\/\/ <\/editor-fold>\r\n\r\n}<\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Program 1 package browser; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.sql.*; public class SQLQueryBrowser extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {...<\/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":[31873,31871,31872,31915,31938,31941,31939,31940],"class_list":["post-135363","post","type-post","status-publish","format-standard","hentry","category-advanced-java-tutorials","tag-advanced-java","tag-advanced-java-practical","tag-advanced-java-program","tag-advanced-java-project","tag-advanced-java-web-based-sql-query-browser","tag-advanced-java-web-based-sql-query-browser-project","tag-web-based-sql-query-browser","tag-web-based-sql-query-browser-project"],"yoast_head":"\nAdvanced Java Project - Web Based SQL Query Browser - 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\/web-based-sql-query-browser\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Advanced Java Project - Web Based SQL Query Browser - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 package browser; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.sql.*; public class SQLQueryBrowser extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/web-based-sql-query-browser\/\" \/>\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=\"2024-05-09T06:57:58+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":"Advanced Java Project - Web Based SQL Query Browser - 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\/web-based-sql-query-browser\/","og_locale":"en_US","og_type":"article","og_title":"Advanced Java Project - Web Based SQL Query Browser - DataFlair","og_description":"Program 1 package browser; 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