CODEWITHSUNDEEP
springthymeleaf
Héctor Pérez Silva
Héctor Pérez Silva

Reputation: 470

Neither BindingResult nor plain target object for bean name 'cliente' available as request attribute

I'm facing an issue with spring and thymeleaf, i'm trying to fill a form with data from an entity called cliente, but i'm getting a Whitelabel Error Page message in the browser and this message in the console

Neither BindingResult nor plain target object for bean name 'cliente' available as request attribute

this is the Cliente

package com.bolsadeideasspringboot.app.models.entity;
import java.io.Serializable;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.validation.constraints.Email;
import javax.validation.constraints.NotEmpty;
import javax.validation.constraints.NotNull;
import org.springframework.format.annotation.DateTimeFormat;

@Entity
@Table(name="clientes")
public class Cliente implements Serializable{

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    @NotEmpty
    private String nombre;
    @NotEmpty
    private String apellido;
    @NotEmpty
    @Email
    private String email;
    @Column(name="create_at")
    @Temporal(TemporalType.DATE)
    @DateTimeFormat(pattern="dd/MM/yyyy")
    private Date createAt;


    public Long getId() {
        return id;
    }
    public void setId(Long id) {
        this.id = id;
    }
    public String getNombre() {
        return nombre;
    }
    public void setNombre(String nombre) {
        this.nombre = nombre;
    }
    public String getApellido() {
        return apellido;
    }
    public void setApellido(String apellido) {
        this.apellido = apellido;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public Date getCreateAt() {
        return createAt;
    }
    public void setCreateAt(Date createAt) {
        this.createAt = createAt;
    }

}

this is the controller method

@RequestMapping(value="/form/{id}")
    public String editar(@ModelAttribute("form") @PathVariable(value="id")Long id, Map<String, Object>model) {
    Cliente cliente = null;

    if(id > 0) {
        clientedao.findOne(id);
        model.put("cliente", cliente);
        model.put("titulo", "Editar Cliente");
        return "form";
    }
    else {
        return "redirect:/listar";
    }

}

this is the ClienteDaoImpl.java method

@Override
public Cliente findOne(Long id) {
    // TODO Auto-generated method stub
    return em.find(Cliente.class, id);
}

this is the Dao interface method

public Cliente findOne(Long id);

and this is the form

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8" />
    <title th:text="${titulo}">Insert title here</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

</head>
<body>

    <div class="container">

        <div class="row">
            <div class="col-md-4 col-md-offset-3">
                <h1 class="text-success" th:text="${titulo}"></h1>
                <form th:action="@{/form}" th:object="${cliente}" method="post">

                    <div class="form-group">
                        <label>Nombre</label>
                        <input class="form-control" type="text" th:field="*{nombre}" placeholder="Nombre"/>
                        <small class="form-text text-danger" th:if="${#fields.hasErrors('nombre')}" th:errors="*{nombre}"></small>
                    </div>

                    <div class="form-group">    
                        <label>Apellido</label>
                        <input class="form-control" type="text" th:field="*{apellido}" placeholder="Apellido"/>
                        <small class="form-text text-danger" th:if="${#fields.hasErrors('apellido')}" th:errors="*{apellido}"></small>
                    </div>
                    <div class="form-group">    
                        <label>Email</label>
                        <input class="form-control" type="text" th:field="*{email}" placeholder="[email protected]"/>
                        <small class="form-text text-danger" th:if="${#fields.hasErrors('email')}" th:errors="*{email}"></small>
                    </div>
                    <div class="form-group">    
                        <label>Fecha</label>
                        <input class="form-control" type="text" th:field="*{createAt}" placeholder="DD/MM/YYYY"/>
                        <small class="form-text text-danger" th:if="${#fields.hasErrors('createAt')}" th:errors="*{createAt}"></small>
                    </div>  
                    <div class="form-group">    
                        <input class="btn btn-primary" type="submit" value="Crear Cliente" />
                    </div>

                    <input type="hidden" th:field="*{id}" />
                </form>
            </div>
        </div>
    </div>

</body>
</html>

i'm setting the cliente in the controller method and i'm using th:object in the form, so i don't know what i'm doing wrong, any help would be helpul, thanks in advice

Upvotes: 0

Views: 44

Answers (1)

riddle_me_this
riddle_me_this

Reputation: 9155

Instead of put(), try using the recommended approach to adding an object to your model with

model.addAttribute("cliente", clientedao.findOne(id));

You typically want to use @GetMapping as well for your requests to populate the form. And use @PostMapping for submissions.

Aside: also take a look at Project Lombok to make your beans less error-prone and more readable. You could remove all those getters and setters and just annotate the class with @Data.

While not deprecated, you'll also want to move away from using java.util.Date and use the newer date/time classes.

Upvotes: 1

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