Spring - Thymeleaf: Exception Processing Template

Spring - Thymeleaf: Exception processing template

I fixed with this code adding delivery prefix:

    <!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org">
<head>
    <title>Taco Cloud</title>
    <link rel="stylesheet" th:href="@{/styles.css}" />
</head>

<body>

<form method="POST" th:action="@{/orders}" th:object="${order}">
    <h1>Order your taco creations!</h1>

    <img th:src="@{/images/TacoCloud.png}"/>

    <h3>Your tacos in this order:</h3>
    <a th:href="@{/design}" id="another">Design another taco</a><br/>
    <ul>
        <li th:each="taco : ${order.tacos}"><span th:text="${taco.name}">taco name</span></li>
    </ul>

    <div th:if="${#fields.hasErrors()}">
        <span class="validationError">
        Please correct the problems below and resubmit.
        </span>
    </div>

    <h3>Deliver my taco masterpieces to...</h3>
    <label for="deliveryName">Name: </label>
    <input type="text" th:field="*{deliveryName}"/>
    <span class="validationError"
          th:if="${#fields.hasErrors('deliveryName')}"
          th:errors="*{deliveryName}">Name Error</span>
    <br/>

    <label for="deliveryStreet">Street address: </label>
    <input type="text" th:field="*{deliveryStreet}"/>
    <span class="validationError"
          th:if="${#fields.hasErrors('deliveryStreet')}"
          th:errors="*{deliveryStreet}">Street Error</span>
    <br/>

    <label for="deliveryCity">City: </label>
    <input type="text" th:field="*{deliveryCity}"/>
    <span class="validationError"
          th:if="${#fields.hasErrors('deliveryCity')}"
          th:errors="*{deliveryCity}">City Error</span>
    <br/>

    <label for="deliveryState">State: </label>
    <input type="text" th:field="*{deliveryState}"/>
    <span class="validationError"
          th:if="${#fields.hasErrors('deliveryState')}"
          th:errors="*{deliveryState}">State Error</span>
    <br/>

    <label for="deliveryZip">Zip code: </label>
    <input type="text" th:field="*{deliveryZip}"/>
    <span class="validationError"
          th:if="${#fields.hasErrors('deliveryZip')}"
          th:errors="*{deliveryZip}">Zip Error</span>
    <br/>

    <h3>Here's how I'll pay...</h3>
    <label for="ccNumber">Credit Card #: </label>
    <input type="text" th:field="*{ccNumber}"/>
    <span class="validationError"
          th:if="${#fields.hasErrors('ccNumber')}"
          th:errors="*{ccNumber}">CC Num Error</span>
    <br/>

    <label for="ccExpiration">Expiration: </label>
    <input type="text" th:field="*{ccExpiration}"/>
    <span class="validationError"
          th:if="${#fields.hasErrors('ccExpiration')}"
          th:errors="*{ccExpiration}">CC Num Error</span>
    <br/>

    <label for="ccCVV">CVV: </label>
    <input type="text" th:field="*{ccCVV}"/>
    <span class="validationError"
          th:if="${#fields.hasErrors('ccCVV')}"
          th:errors="*{ccCVV}">CC Num Error</span>
    <br/>

    <input type="submit" value="Submit order"/>
</form>

</body>
</html>

Error during template parsing.Spring boot and Thymeleaf

Change

th:href="/@{/users}"

th:href="@{/users}"

By removing slash Before @

Thymeleaf exceptions for resolving template in spring boot

It seems as though you've incorrectly placed the file in the wrong folder. Try moving the it into the resources folder, it should be in src/main/resources

Otherwise, you'd need to manually configure that all templates be in src/main/webapp, but by default it's usually placed in resources

An error happened during template parsing Spring boot Thymeleaf

Your template is referring to an entry in the model named Student:

<form action="#" th:action="@{/reg_success}" th:object="${Student}" method="post">

There's no such entry so an exception is thrown and this causes template parsing to fail.

You can fix the problem by updating your controller method that handles requests to /index to add an entry named Student to the model:

@GetMapping("/index")
public String sendForm(Model model) {
    model.addAttribute("Student", new Student());
    return "index";
}

This will then allow requests to /index to succeed:

$ curl -i localhost:8080/index
HTTP/1.1 200 
Content-Type: text/html;charset=UTF-8
Content-Language: en-GB
Transfer-Encoding: chunked
Date: Tue, 19 Jan 2021 12:33:45 GMT

<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<h1>Add User</h1>

<form action="/reg_success" method="post">
    <p>
        Studnt ID: <input type="text" id="id" name="id" value="0">
    </p>
    
    <p>
        Studnt Name: <input type="text" id="studentname" name="studentname" value="">
    </p>
    <p>
        Studnt Course: <input type="text" id="course" name="course" value="">
    </p>
    
    <p>
        <input type="submit" value="Submit"/> <input type="reset" value="Reset">
    </p>
</form>
</body>
</html>

Spring - Thymeleaf: Exception Processing Template