圆形视图路径错误Spring启动 [英] Circular View path error Spring boot
问题描述
我是Spring的新手。我正在尝试使用Spring Boot构建一个MVC应用程序，它显示了一个产品列表。但我得到以下错误：
I am very new to Spring. I am trying to build a MVC application using Spring Boot which shows a list of products. But i am getting the below error:
javax.servlet.ServletException：循环视图路径[产品]：将
发回再次到当前处理程序URL [/ products]。检查你的
ViewResolver设置！ （提示：由于默认的视图名称生成，这可能是未指定的
视图的结果。）
javax.servlet.ServletException: Circular view path [products]: would dispatch back to the current handler URL [/products] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)
这是controller：
Here is controller:
package com.springframeworkguru.controllers;
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 com.springframeworkguru.services.ProductService;
@Controller
public class ProductController {
private ProductService productService;
@Autowired
public void setProductService(ProductService productService) {
this.productService = productService;
}
@RequestMapping("/products")
public String listProducts(Model model){
model.addAttribute("products", productService.listAllProducts());
return "products";
}
}
这是主要类：
package com.springframeworkguru;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.web.SpringBootServletInitializer;
import com.springframeworkguru.controllers.ProductController;
@SpringBootApplication
public class SpringmvcApplication extends SpringBootServletInitializer{
public static void main(String[] args) {
SpringApplication.run(SpringmvcApplication.class, args);
}
}
和 products.html ：
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<title>Spring Core Online Tutorial - List Products</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<link href="http://cdn.jsdelivr.net/webjars/bootstrap/3.3.4/css/bootstrap.min.css"
th:href="@{/webjars/bootstrap/3.3.5/css/bootstrap.min.css}"
rel="stylesheet" media="screen"/>
<script src="http://cdn.jsdelivr.net/webjars/jquery/2.1.4/jquery.min.js"
th:src="@{/webjars/jquery/2.1.4/jquery.min.js}"></script>
<link href="../css/spring-core.css"
th:href="@{css/spring-core.css}" rel="stylesheet" media="screen"/>
</head>
<body>
<div class="container">
<div th:if="${not #lists.isEmpty(products)}">
<h2>Product List</h2>
<table class="table table-striped">
<tr>
<th>Id</th>
<th>Description</th>
<th>Price</th>
<th>Image URL</th>
<th>List</th>
</tr>
<tr th:each="product : ${products}">
<td th:text="${product.id}"></td>
<td th:text="${product.description}"></td>
<td th:text="${product.price}"></td>
<td th:text="${product.imageUrl}"></td>
<td><a th:href="${'/product/' + product.id}">View</a> </td>
</tr>
</table>
</div>
</div>
</body>
</html>
products.html 位于 / static 文件夹。另外，我正在使用Eclipse Kepler。
The products.html is in /static folder. Also, I am using Eclipse Kepler.
推荐答案
添加 spring-boot-starter-thymeleaf 依赖项解决了这个问题。
Adding spring-boot-starter-thymeleaf dependency solved the problem.
所以将它添加到你的pom.xml文件中：
So add this to your pom.xml file:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
这篇关于圆形视图路径错误Spring启动的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
