Merge pull request #867 from sbmaggarwal/master

BAEL-425 Merge it

javax-servlets/.gitignore

@@ -0,0 +1,5 @@
+# Created by .ignore support plugin (hsz.mobi)
+.idea
+classes
+target
+*.iml

javax-servlets/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.root</groupId>
+    <artifactId>ServletmavenExample</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <dependencies>
+
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>${javax.servlet.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+            <version>${org.apache.httpcomponents.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
+
+    <properties>
+        <javax.servlet.version>3.1.0</javax.servlet.version>
+        <junit.version>4.12</junit.version>
+        <org.apache.httpcomponents.version>4.5</org.apache.httpcomponents.version>
+    </properties>
+
+</project>

javax-servlets/src/main/java/com/root/FormServlet.java

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+package com.root;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@WebServlet(name = "FormServlet", urlPatterns = "/calculateServlet")
+public class FormServlet extends HttpServlet {
+
+    @Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+
+        String height = request.getParameter("height");
+        String weight = request.getParameter("weight");
+
+        try {
+            double bmi = calculateBMI(Double.parseDouble(weight), Double.parseDouble(height));
+
+            request.setAttribute("bmi", bmi);
+            response.setHeader("Test", "Success");
+            response.setHeader("BMI", String.valueOf(bmi));
+
+            RequestDispatcher dispatcher = request.getRequestDispatcher("index.jsp");
+            dispatcher.forward(request, response);
+        } catch (Exception e) {
+
+            response.sendRedirect("index.jsp");
+        }
+    }
+
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+
+        // do something else here
+    }
+
+    private Double calculateBMI(Double weight, Double height) {
+
+        return weight / (height * height);
+    }
+}

javax-servlets/src/test/java/com/root/FormServletTest.java

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+package com.root;
+
+import org.apache.http.HttpResponse;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.impl.client.DefaultHttpClient;
+import org.apache.http.message.BasicNameValuePair;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+
+public class FormServletTest {
+
+    @Test
+    public void whenPostRequestUsingHttpClient_thenCorrect() throws Exception {
+
+        HttpClient client = new DefaultHttpClient();
+        HttpPost method = new HttpPost("http://localhost:8080/calculateServlet");
+
+        List<BasicNameValuePair> nvps = new ArrayList<BasicNameValuePair>();
+        nvps.add(new BasicNameValuePair("height", String.valueOf(2)));
+        nvps.add(new BasicNameValuePair("weight", String.valueOf(80)));
+
+        method.setEntity(new UrlEncodedFormEntity(nvps));
+        HttpResponse httpResponse = client.execute(method);
+
+        assertEquals("Success", httpResponse.getHeaders("Test")[0].getValue());
+        assertEquals("20.0", httpResponse.getHeaders("BMI")[0].getValue());
+    }
+}

javax-servlets/web/WEB-INF/web.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
+         version="3.1">
+
+</web-app>

javax-servlets/web/index.jsp

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+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>Calculate BMI</title>
+</head>
+<body>
+
+<form name="bmiForm" action="calculateServlet" method="POST">
+
+    <table>
+        <tr>
+            <td>Your Weight (kg) :</td>
+            <td><input type="text" name="weight"/></td>
+        </tr>
+        <tr>
+            <td>Your Height (m) :</td>
+            <td><input type="text" name="height"/></td>
+        </tr>
+        <th><input type="submit" value="Submit" name="find"/></th>
+        <th><input type="reset" value="Reset" name="reset" /></th>
+    </table>
+    <h2>${bmi}</h2>
+</form>
+
+</body>
+</html>

pom.xml

@@ -48,6 +48,7 @@
 
         <module>jackson</module>
         <module>java-cassandra</module>
+        <module>javax-servlets</module>
         <module>javaxval</module>
         <module>jee7</module>
         <module>jjwt</module>