BAEL-1602

spring-mvc-xml/README.md

@@ -15,3 +15,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Geolocation by IP in Java](http://www.baeldung.com/geolocation-by-ip-with-maxmind)
 - [Guide to JavaServer Pages (JSP)](http://www.baeldung.com/jsp)
 - [Exploring SpringMVC’s Form Tag Library](http://www.baeldung.com/spring-mvc-form-tags)
+- [Guide to JSTL](http://www.baeldung.com/guide-to-jstl)

spring-mvc-xml/pom.xml

@@ -37,6 +37,13 @@
 
         <!-- web -->
 
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>2.9.2</version>
+        </dependency>
+
+
         <dependency>
             <groupId>javax.servlet</groupId>
             <artifactId>javax.servlet-api</artifactId>
@@ -57,6 +64,13 @@
             <version>${hibernate-validator.version}</version>
         </dependency>
 
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>6.0.6</version>
+        </dependency>
+
+
         <!-- Json conversion -->
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
@@ -108,6 +122,14 @@
 
     </build>
 
+    <repositories>
+        <repository>
+            <id>1</id>
+            <name>jstl</name>
+            <url>https://mvnrepository.com/artifact/javax.servlet/jstl</url>
+        </repository>
+    </repositories>
+
     <properties>
         <!-- Spring -->
         <org.springframework.version>5.0.2.RELEASE</org.springframework.version>

spring-mvc-xml/src/main/java/com/baeldung/jstl/bundles/CustomMessage_en.java

@@ -0,0 +1,17 @@
+package com.baeldung.jstl.bundles;
+
+import java.util.ListResourceBundle;
+
+public class CustomMessage_en extends ListResourceBundle {
+    @Override
+    protected Object[][] getContents() {
+        return contents;
+    }
+
+    static final Object[][] contents = {
+            {"verb.go", "go"},
+            {"verb.come", "come"},
+            {"verb.sit", "sit"},
+            {"verb.stand", "stand"}
+    };
+}

spring-mvc-xml/src/main/java/com/baeldung/jstl/bundles/CustomMessage_fr_FR.java

@@ -0,0 +1,17 @@
+package com.baeldung.jstl.bundles;
+
+import java.util.ListResourceBundle;
+
+public class CustomMessage_fr_FR extends ListResourceBundle {
+    @Override
+    protected Object[][] getContents() {
+        return contents;
+    }
+
+    static final Object[][] contents = {
+            {"verb.go", "aller"},
+            {"verb.come", "venir"},
+            {"verb.sit", "siéger"},
+            {"verb.stand", "se lever"}
+    };
+}

spring-mvc-xml/src/main/java/com/baeldung/jstl/controllers/JSTLController.java

@@ -0,0 +1,125 @@
+package com.baeldung.jstl.controllers;
+
+import com.baeldung.jstl.dbaccess.SQLConnection;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.servlet.ModelAndView;
+
+import javax.annotation.PostConstruct;
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.File;
+import java.sql.*;
+import java.util.Calendar;
+
+@Controller
+public class JSTLController {
+    private static final Logger LOGGER = LoggerFactory.getLogger(JSTLController.class.getName());
+
+    @Autowired
+    ServletContext servletContext;
+
+    @PostConstruct
+    public void init() {
+        PreparedStatement preparedStatement = null;
+        Connection connection = null;
+        try {
+            connection = SQLConnection.getConnection();
+            preparedStatement = connection.prepareStatement("create table IF NOT EXISTS USERS " +
+                    "( id int not null primary key AUTO_INCREMENT," +
+                    " email VARCHAR(255) not null, first_name varchar (255), last_name varchar (255), registered DATE)");
+            int status = preparedStatement.executeUpdate();
+            preparedStatement = connection.prepareStatement("SELECT COUNT(*) AS total FROM USERS;");
+            ResultSet result = preparedStatement.executeQuery();
+            if(result!=null) {
+                result.next();
+                if (result.getInt("total") == 0) {
+                    generateDummy(connection);
+                }
+            } else {
+                generateDummy(connection);
+            }
+        } catch (Exception e) {
+            LOGGER.error(e.getMessage());
+        } finally {
+            try {
+                if (preparedStatement != null) {
+                    preparedStatement.close();
+                }
+                if (connection != null) {
+                    connection.close();
+                }
+            } catch (SQLException e) {
+                LOGGER.error(e.getMessage());
+            }
+
+        }
+    }
+
+    @RequestMapping(value = "/core_tags", method = RequestMethod.GET)
+    public ModelAndView coreTags(final Model model) {
+        ModelAndView mv = new ModelAndView("core_tags");
+        return mv;
+    }
+
+    @RequestMapping(value = "/core_tags_redirect", method = RequestMethod.GET)
+    public ModelAndView coreTagsRedirect(final Model model) {
+        ModelAndView mv = new ModelAndView("core_tags_redirect");
+        return mv;
+    }
+
+
+    @RequestMapping(value = "/formatting_tags", method = RequestMethod.GET)
+    public ModelAndView formattingTags(final Model model) {
+        ModelAndView mv = new ModelAndView("formatting_tags");
+        return mv;
+    }
+
+    @RequestMapping(value = "/sql_tags", method = RequestMethod.GET)
+    public ModelAndView sqlTags(final Model model) {
+        ModelAndView mv = new ModelAndView("sql_tags");
+        return mv;
+    }
+
+    @RequestMapping(value = "/xml_tags", method = RequestMethod.GET)
+    public ModelAndView xmlTags(final Model model) {
+        ModelAndView mv = new ModelAndView("xml_tags");
+        return mv;
+    }
+
+    @RequestMapping(value = "/items_xml", method = RequestMethod.GET)
+    @ResponseBody public FileSystemResource getFile(HttpServletRequest request, HttpServletResponse response) {
+        response.setContentType("application/xml");
+        return new FileSystemResource(new File(servletContext.getRealPath("/WEB-INF/items.xsl")));
+    }
+
+    @RequestMapping(value = "/function_tags", method = RequestMethod.GET)
+    public ModelAndView functionTags(final Model model) {
+        ModelAndView mv = new ModelAndView("function_tags");
+        return mv;
+    }
+
+
+    private void generateDummy(Connection connection) throws SQLException {
+        PreparedStatement preparedStatement = connection.prepareStatement("INSERT INTO USERS " +
+                "(email, first_name, last_name, registered) VALUES (?, ?, ?, ?);");
+        preparedStatement.setString(1, "patrick@baeldung.com");
+        preparedStatement.setString(2, "Patrick");
+        preparedStatement.setString(3, "Frank");
+        preparedStatement.setDate(4, new Date(Calendar.getInstance().getTimeInMillis()));
+        preparedStatement.addBatch();
+        preparedStatement.setString(1, "bfrank@baeldung.com");
+        preparedStatement.setString(2, "Benjamin");
+        preparedStatement.setString(3, "Franklin");
+        preparedStatement.setDate(4, new Date(Calendar.getInstance().getTimeInMillis()));
+        preparedStatement.executeBatch();
+    }
+}

spring-mvc-xml/src/main/java/com/baeldung/jstl/dbaccess/SQLConnection.java

@@ -0,0 +1,30 @@
+package com.baeldung.jstl.dbaccess;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.util.Properties;
+
+public class SQLConnection {
+    private static String userName = "root";
+    private static String password = "";
+    private static final Logger LOGGER = LoggerFactory.getLogger(SQLConnection.class.getName());
+
+    public static Connection getConnection() throws Exception {
+        LOGGER.error("connecting...");
+        Class.forName("com.mysql.cj.jdbc.Driver");
+        LOGGER.error("class checked...");
+        Connection conn = null;
+        Properties connectionProps = new Properties();
+        connectionProps.put("user", userName);
+        connectionProps.put("password", password);
+        conn = DriverManager.getConnection(
+                "jdbc:mysql://localhost:3306/test?autoReconnect=true&useSSL=false",
+                connectionProps);
+        LOGGER.info("Connected to database");
+        return conn;
+    }
+}

spring-mvc-xml/src/main/resources/webMvcConfig.xml

@@ -23,7 +23,7 @@
         </mvc:message-converters>
     </mvc:annotation-driven>
 
-    <context:component-scan base-package="com.baeldung.spring.controller"/>
+    <context:component-scan base-package="com.baeldung.spring.controller, com.baeldung.jstl.controllers"/>
 
     <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/view/"/>

spring-mvc-xml/src/main/webapp/WEB-INF/items.xsl

@@ -0,0 +1,27 @@
+<?xml version = "1.0"?>
+<xsl:stylesheet xmlns:xsl = "http://www.w3.org/1999/XSL/Transform" version = "1.0">
+
+    <xsl:output method = "html" indent = "yes"/>
+    <xsl:param name = "bgColor"/>
+
+    <xsl:template match = "/">
+        <html>
+            <body>
+                <xsl:apply-templates/>
+            </body>
+        </html>
+    </xsl:template>
+
+    <xsl:template match = "items">
+        <table border = "1" width = "40%" bgColor = "{$bgColor}">
+            <xsl:for-each select = "item">
+                <tr>
+                    <td><i><xsl:value-of select = "name"/></i></td>
+                    <td><xsl:value-of select = "category"/></td>
+                    <td><xsl:value-of select = "price"/></td>
+                </tr>
+            </xsl:for-each>
+        </table>
+    </xsl:template>
+
+</xsl:stylesheet>

spring-mvc-xml/src/main/webapp/WEB-INF/mvc-servlet.xml

@@ -7,7 +7,7 @@
         http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
 
 
-    <context:component-scan base-package="com.baeldung.spring.controller"/>
+    <context:component-scan base-package="com.baeldung.spring.controller, com.baeldung.jstl.controllers"/>
 
     <!-- Start: Mapping by bean name (BeanNameUrlHandlerMapping) -->
     <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping">
@@ -40,12 +40,6 @@
     <bean id="helloController" class="com.baeldung.spring.controller.HelloController"/>
     <!-- End: Mapping by SimpleUrlHandlerMapping -->
 
-    <!-- Start: Mapping by ControllerClassNameHandlerMapping -->
-    <bean
-            class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping">
-        <property name="caseSensitive" value="true"/>
-        <property name="order" value="0"/>
-    </bean>
 
     <bean class="com.baeldung.spring.controller.HelloGuestController"/>
     <!-- End: Mapping by ControllerClassNameHandlerMapping -->

spring-mvc-xml/src/main/webapp/WEB-INF/view/core_tags.jsp

@@ -0,0 +1,92 @@
+<%@ page import="java.util.Random" %>
+<%@ page import="java.util.Date" %>
+<%@ page import="java.util.Calendar" %>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<html>
+<head>
+    <c:set value="JSTL Core Tags Example" var="pageTitle"/>
+    <title>
+        <c:out value="${pageTitle}"/>
+    </title>
+</head>
+<body>
+<h1>
+    <c:out value="${pageTitle}"/>
+</h1>
+<c:remove var="pageTitle"/>
+<p><c:out value="${pageTitle}"/></p>
+<div>
+    <h3>
+        <c:out value="<c:catch> Example"/>
+    </h3>
+    <c:catch var ="exceptionThrown">
+        <% int x = Integer.valueOf("a");%>
+    </c:catch>
+
+    <c:if test = "${exceptionThrown != null}">
+        <p>The exception is : ${exceptionThrown} <br />
+            There is an exception: ${exceptionThrown.message}</p>
+    </c:if>
+</div>
+<div>
+
+    <h3>
+        <c:out value="<c:choose> Example"/>
+        <c:set value="<%= Calendar.getInstance().get(Calendar.SECOND)%>" var="seconds"/>
+    </h3>
+    <p>
+        <c:choose>
+            <c:when test="${seconds le 30 }">
+                <c:out value="${seconds} is less than 30"/>
+            </c:when>
+            <c:when test="${seconds eq 30 }">
+                <c:out value="${seconds} is equal to 30"/>
+            </c:when>
+            <c:otherwise>
+                <c:out value="${seconds} is greater than 30"/>
+            </c:otherwise>
+        </c:choose>
+    </p>
+</div>
+<div>
+    <h3>
+        <c:out value="<c:import> Example"/>
+    </h3>
+
+    <c:import var = "data" url = "http://www.example.com"/>
+    <c:out value = "${data}"/>
+</div>
+<div>
+
+    <h3>
+        <c:out value="<c:forEach> Example"/>
+    </h3>
+
+    <c:forEach var = "i" items="1,4,5,6,7,8,9">
+    Item <c:out value = "No. ${i}"/><p>
+    </c:forEach>
+</div>
+<div>
+
+    <h3>
+        <c:out value="<c:forToken> Example"/>
+    </h3>
+
+    <c:forTokens items = "Patrick:Wilson:Ibrahima:Chris" delims = ":" var = "name">
+    <c:out value = "Name: ${name}"/><p>
+    </c:forTokens>
+</div>
+<div>
+
+    <h3>
+        <c:out value="<c:url> and <c:param> Example"/>
+    </h3>
+    <c:url value = "/core_tags" var = "myURL">
+        <c:param name = "parameter_1" value = "1234"/>
+        <c:param name = "parameter_2" value = "abcd"/>
+    </c:url>
+    <c:out value = "URL: ${myURL}"/>
+</div>
+</body>
+</html>