I want to fetch my product details in database but it throws excepion org.hibernate.hql.internal.ast.QuerySyntaxException: Product is not mapped - spring

Question

I'm keep getting an exception. I've tried to solve this problem for a few days now...
Please help me...
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.hql.internal.ast.QuerySyntaxException: Product is not mapped [from Product]
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:981)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
This is my ProductController
package com.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import com.model.Categories;
import com.model.Product;
import com.service.ProductService;
#Controller
public class ProductController {
#Autowired
private ProductService productService;
// Getters and Setters
public ProductService getProductService() {
return productService;
}
public void setProductService(ProductService productService) {
this.productService = productService;
}
// Request Mapping
#RequestMapping("/getAllProducts")
public ModelAndView getAllProducts() {
List<Product> products = productService.getAllProducts();
return new ModelAndView("productList", "products", products);
}
#RequestMapping("getProductById/{productId}")
public ModelAndView getProductById(#PathVariable(value = "productId") String productId) {
Product product = productService.getProductById(productId);
return new ModelAndView("productPage", "productObj", product);
}
#RequestMapping("/delete/{productId}")
public String deleteProduct(#PathVariable(value = "productId") String productId) {
productService.deleteProduct(productId);
return "redirect:/getAllProducts";
}
#RequestMapping(value = "/admin/product/addProduct", method = RequestMethod.GET)
public String getProductForm(Model model) {
Product product = new Product();
Categories category = new Categories();
category.setCategoryId("1");
product.setProductCategory(category);
model.addAttribute("productFormObj", product);
return "productForm";
}
#RequestMapping(value = "/admin/product/addProduct", method = RequestMethod.POST)
public String addProduct(#ModelAttribute(value = "productFormObj") Product product) {
productService.addProduct(product);
return "redirect:/getAllProducts";
}
}
This is my ProductClass
package com.model;
import java.util.Locale.Category;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
#Entity
#Table(name = "product")
public class Product {
#Id
#Column
#GeneratedValue(strategy = GenerationType.AUTO)
private String productId;
#Column
private String productDescription;
#Column
private String productManufacturer;
#Column
private String productName;
#Column
private double productPrice;
#Column(name="stockunit")
private String unitStock;
#ManyToOne
#JoinColumn(name="categoryId")
private Categories productCategory;
// Getters and Setter
public String getProductId() {
return productId;
}
public Categories getProductCategory() {
return productCategory;
}
public String getProductDescription() {
return productDescription;
}
public String getProductManufacturer() {
return productManufacturer;
}
public String getProductName() {
return productName;
}
public double getProductPrice() {
return productPrice;
}
public String getUnitStock() {
return unitStock;
}
public void setProductId(String productId) {
this.productId = productId;
}
public void setProductCategory(Categories category) {
this.productCategory = category;
}
public void setProductDescription(String productDescription) {
this.productDescription = productDescription;
}
public void setProductManufacturer(String productManufacturer) {
this.productManufacturer = productManufacturer;
}
public void setProductName(String productName) {
this.productName = productName;
}
public void setProductPrice(double productPrice) {
this.productPrice = productPrice;
}
public void setUnitStock(String unitStock) {
this.unitStock = unitStock;
}
//Constructors
public Product(String productId, Categories productCategory, String productDescription, String productManufacturer,
String productName, double productPrice, String unitStock) {
super();
this.productId = productId;
this.productCategory = productCategory;
this.productDescription = productDescription;
this.productManufacturer = productManufacturer;
this.productName = productName;
this.productPrice = productPrice;
this.unitStock = unitStock;
}
public Product(){
}
}
This is my application Context
<!-- for Entity Classes annotated Classes package -->
<property name="packagesToScan">
<list>
<value>com.model.Product</value>
<value>com.model.Categories</value>
</list>
</property>
</bean>
My Category Class
import java.util.List;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
#Entity
#Table(name = "categories")
public class Categories {
#Id
private String categoryId;
#Column
private String Categories;
#OneToMany(mappedBy = "categories")
private List<Product> product;
//And Respective Getters and Setters
ProductList page
<tbody>
<c:forEach items="${products}" var="prod">
<tr>
<td>${prod.productId}</td>
<td>${prod.productCategory}</td>
<td>${prod.productName}</td>
<td>${prod.productPrice}</td>
<td>${prod.unitStock}</td>
<td>${prod.productDescription}</td>
<td>${prod.productManufacturer}</td>
<td>
<span class="glyphicon glyphicon-info"></span>
<span class="glyphicon glyphicon-trash"></span>
</td>
</tr>
</c:forEach>

Answer 1

After a long analyse i have found the solution for this problem
I have modified some code in my daoImpl.
this is older code.
List<Product> products = session.createQuery("from Product").list();
I have changed this to
List<Product> products = session.createCriteria(Product.class).list();
And some changes in appication Context as #v.ladynev said :
<property name="packagesToScan">
<list>
<value>com.model</value>
</list>
</property>

Answer 2

You should specify a package here, not classes
<property name="packagesToScan">
<list>
<value>com.model</value>
</list>
</property>