Add an example of how to handle POST request in Spring MVC controller

tboychuk · tboychuk · commit 95748d1a35b7 · 2018-12-06T10:09:54.000+02:00
diff --git a/mvc-basics/src/main/java/com/bobocode/web/controller/AccountController.java b/mvc-basics/src/main/java/com/bobocode/web/controller/AccountController.java
@@ -2,9 +2,11 @@
 
 import com.bobocode.model.Account;
 import com.bobocode.util.TestDataGenerator;
+import org.springframework.format.annotation.DateTimeFormat;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 
 @Controller
@@ -17,4 +19,24 @@ public String generate(Model model) {
         model.addAttribute("account", account);
         return "account";
     }
+
+    /**
+     * Handles POST request and forwards {@link Account} instance to the account.jsp view. Suppose you have an HTML form
+     * that uses method POST and submits data to this controller. Spring will handle the request, create {@link Account}
+     * instance and set all account fields that match form input parameters.
+     *
+     * @param account instance that is created using HTML form input parameters
+     * @param model   created and passed by Spring
+     * @return the view name
+     */
+    @PostMapping
+    public String post(@DateTimeFormat(iso = DateTimeFormat.ISO.DATE) Account account, Model model) {
+        model.addAttribute(account);
+        return "account";
+    }
+
+    @GetMapping("/add")
+    public String getAccountForm() {
+        return "accountForm";
+    }
 }
diff --git a/mvc-basics/src/main/webapp/WEB-INF/views/account.jsp b/mvc-basics/src/main/webapp/WEB-INF/views/account.jsp
@@ -16,6 +16,7 @@
     <p>${account.email}</p>
     <p>${account.birthday}</p>
     <a class="btn btn-primary btn-lg" href="/accounts/generate" role="button">Generate</a>
+    <a class="btn btn-secondary btn-lg" href="/accounts/add" role="button">Enter data</a>
 </div>
 </body>
 </html>
diff --git a/mvc-basics/src/main/webapp/WEB-INF/views/accountForm.jsp b/mvc-basics/src/main/webapp/WEB-INF/views/accountForm.jsp
@@ -0,0 +1,31 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
+          integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
+    <title>Account</title>
+</head>
+<body>
+<div class="container" style="margin-top: 10%; width: 30%">
+    <h3>Enter account data</h3>
+    <form method="post" action="/accounts">
+        <div class="form-group">
+            <input id="firstNameInput" name="firstName" type="text" class="form-control" placeholder="First name"/>
+        </div>
+        <div class="form-group">
+            <input id="lastNameInput" name="lastName" type="text" class="form-control" placeholder="Last name"/>
+        </div>
+        <div class="form-group">
+            <input id="emailInput" name="email" type="text" class="form-control" placeholder="Email"/>
+        </div>
+        <div class="form-group">
+            <input id="birthday" name="birthday" type="date" class="form-control" placeholder="Birthday"/>
+        </div>
+
+        <button type="submit" class="btn btn-primary">Submit</button>
+    </form>
+</div>
+
+</body>
+</html>
diff --git a/spring-framework-tutorial-model/src/main/java/com/bobocode/model/Account.java b/spring-framework-tutorial-model/src/main/java/com/bobocode/model/Account.java
@@ -1,6 +1,5 @@
 package com.bobocode.model;
 
-import com.bobocode.model.Gender;
 import lombok.*;
 
 import javax.persistence.*;
