Ошибка
Страница ошибки Whitelabel Это приложение не имеет явного сопоставления для / error, поэтому вы видите это как запасной вариант.
Пн 27 апреля 21:00:28 BST 2020 Произошла непредвиденная ошибка (тип = Внутренняя ошибка сервера, статус = 500). Абсолютное значение uri: http://java.sun.com/jsp/jstl/core не может быть разрешено ни в сети. xml, ни в файлах jar, развернутых с помощью этого приложения
контроллер
package com.sales.controllers;
import java.util.ArrayList;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.sales.models.Product;
import com.sales.services.ProductService;
@ Controller publi c class MainController {
@Autowired
ProductService ps;
@RequestMapping(value = "/showProducts.html")
public String getProducts(Model model) {
ArrayList<Product> products = ps.getAllProducts();
model.addAttribute("products", products);
return "listProducts";
}
@RequestMapping(value = "/addProduct.html")
public String addPerson(Model model) {
Product p = new Product();
model.addAttribute("products", p);
return "addProduct";
}
}
listProducts. js
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>List of Products</title>
</head>
<body>
<h1>List of Products</h1>
<table>
<tr>
<th>Product ID</th>
<th>Description</th>
<th>Quantity in Stock</th>
</tr>
<tr>
<c:forEach items="${products}" var="product">
<tr>
<td>${product.pId}</td>
<td>${product.pDesc}</td>
<td>${product.qtyInStock}</td>
</tr>
</c:forEach>
</tr>
<tr>
<td><a href="\">Home</a></td>
</tr>
</table>
</body>
</html>
класс продукта
package com.sales.models;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.validation.constraints.Min;
import org.hibernate.validator.constraints.NotBlank;
@Entity
@Table(name="PRODUCTS")
public class Product {
@Id
@GeneratedValue
@Column(name="PID")
private Long pId;
@Column(name="PDESC")
@NotBlank
private String pDesc;
@Column(name="QTYINSTOCK")
@Min(value=0)
private int qtyInStock;
@OneToMany(mappedBy="prod")
private List<Order> ordersForProduct = new ArrayList<Order>();
public Long getpId() {
return pId;
}
public void setpId(Long pId) {
this.pId = pId;
}
public String getpDesc() {
return pDesc;
}
public void setpDesc(String pDesc) {
this.pDesc = pDesc;
}
public int getQtyInStock() {
return qtyInStock;
}
public void setQtyInStock(int qtyInStock) {
this.qtyInStock = qtyInStock;
}
public List<Order> getOrdersForProduct() {
return ordersForProduct;
}
public void setOrdersForProduct(List<Order> ordersForProduct) {
this.ordersForProduct = ordersForProduct;
}
}
класс бега
package com.sales;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class FinalProjV1Application {
public static void main(String[] args) {
SpringApplication.run(FinalProjV1Application.class, args);
}
}
пом. xml
<?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.sales</groupId>
<artifactId>Sales</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>FinalProjV1</name>
<description>Sales Application</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>