java - 警告页面未找到 :No mapping found for HTTP request with URI

Question

我正在尝试构建一个示例 mvc 项目，但我遇到了这个问题。当我调用 /products url 时，样式工作正常，但是当我尝试调用 /products/viewProducts/{productId} url 时，不会为此调用添加样式。这是调用第二个网址时捕获的图像 Image2

请帮我找出我到底做错了什么？以下是项目详情。

错误详细信息

WARN  PageNotFound:1147 - No mapping found for HTTP request with URI [/course-project/productsList/viewProduct/resources/js/bootstrap.min.js] in DispatcherServlet with name 'dispatcher'

Project Structure

调度程序-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
	version="3.1">
	<display-name>course-project</display-name>

	<!-- Bootstraps the root web application context before servlet initialization -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
	<!-- needed for ContextLoaderListener -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>
		/WEB-INF/dispatcher-servlet.xml
		/WEB-INF/applicationContext.xml
		</param-value>
	</context-param>

	<servlet>
		<servlet-name>dispatcher</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<!-- Map all requests to the DispatcherServlet for handling -->
	<servlet-mapping>
		<servlet-name>dispatcher</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>


</web-app>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:src="http://www.springframework.org/schema/mvc"
	xmlns:cache="http://www.springframework.org/schema/cache"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/cache http://www.springframework.org/schema/mvc/cache.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

	 <context:component-scan base-package="com.pavan.mvc"/>
    <mvc:annotation-driven/>

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>

    </bean>
    
    <mvc:resources  mapping="/resources/**" location="/WEB-INF/resources/"/>
   <tx:annotation-driven/>
</beans>

HomeController.java

package com.pavan.mvc.controller;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
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.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import com.pavan.mvc.dao.ProductDao;
import com.pavan.mvc.model.Product;

@Controller
public class HomeController {
	
	@Autowired
	private ProductDao productDao;
	
	@RequestMapping("/")
	public String goHome(){
		return "home";
	}
	@RequestMapping("/productsList")
	public String getProducts(Model model){
		List<Product> products = productDao.getAllProduct();
		model.addAttribute("products", products);
		return "productsList" ;
	}
	
	
	@RequestMapping("/form")
	public String getForm(){
		return "form" ;
	}
	
	@RequestMapping("/productsList/viewProduct/{productId}")
	public String viewProduct(@PathVariable Long productId, Model model) throws IOException{
		Product product = productDao.getProductById(productId);
		model.addAttribute(product);
		return "viewProducts";
	}

}

产品列表.jsp

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@include file="/WEB-INF/views/template/header.jsp"%>
<div class="container-wrapperr">
	<div class="container">
		<div class="page-header">
			<h1>All Product</h1>
			<p class="lead">Chechout all the awesome products available now</p>
		</div>

		<table class="table table-striped table-hover">
			<thead>
				<tr class="bg-sucess">
					<th>Phto Thumb</th>
					<th>Product Name</th>
					<th>Category</th>
					<th>Condition</th>
					<th>Price</th>
					<th></th>
				</tr>
			</thead>
			<c:forEach items="${products }" var="product">
				<tr>
					<td><img src="#" alt="image" /></td>
					<td>${product.productName}</td>
					<td>${product.productCategory }</td>
					<td>${product.productCondition }</td>
					<td>${product.productPrice }</td>
					<td><a
						href="<spring:url value="/productsList/viewProduct/${product.productId}"/>">
							<span class="glyphicon glyphicon-info-sign"></span>
					</a></td>
				</tr>
			</c:forEach>
		</table>
	</div>
</div>
<%@include file="/WEB-INF/views/template/footer.jsp"%>

viewProducts.jsp

<%@taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<%@include file="/WEB-INF/views/template/header.jsp"%>

<div class="container-wrapperr">
	<div class="container">
		<div class="page-header">
			<h1>Product Detail</h1>
			<p class="lead">Here is the detail information of the product</p>
		</div>
		<div class="container">
			<div class="row">
				<div class="col-md-5">
					<img src="#" alt="image" style = "width: 100% ; height: 100px"/>
				</div>
				<div class="col-md-5">
					<h3>${product.productName}</h3>
					<p>
						<strong>Catogary</strong>: ${product.productCategory}
					</p>
					<p>
						<strong>Condition</strong>: ${product.productCondition}
					</p>
					<p>
						<strong>Product Price</strong>: ${product.productPrice}
					</p>
				</div>
			</div>
		</div>
	</div>
</div>

<%@include file="/WEB-INF/views/template/footer.jsp"%>

Answer 1

在您的 JSP 中，您在哪里包含引导文件？您的项目中有引导文件吗？如果没有，则将它们添加到 JSP 的顶部:

<link rel="stylesheet"
href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script
src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

这些将在您的 JSP 中包含 bootstrap lib(和 jquery lib)，然后它将显示您的样式

@Pavan 如果您真的不想在每个 jsp 中编写包含内容的内容，那么您必须在部署描述符(您的 web.xml 文件)中配置 JSP，如下所示:

<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<url-pattern>*.jspf</url-pattern>
<include-prelude>/WEB-INF/jsp/base.jspf</include-prelude>
<trim-directive-whitespaces>true</trim-directive-whitespaces>
</jsp-property-group>
</jsp-config>

现在，如果你看到了，我将这一行放在上面的配置中 <include-prelude>/WEB-INF/jsp/base.jspf</include-prelude>部署描述符中的标签告诉容器在属于的每个 JSP 的开头包含/WEB-INF/jsp/base.jspf 文件这个地产集团。这对于定义公共(public)变量、标签库声明或其他应该向组中的所有 JSP 提供可用的资源。同样，一个标签定义要包含在组中每个 JSP 末尾的文件。您可以更多地使用这两个标签多于单个 JSP 组中的一次。例如，您可以创建 header.jspf 和 footer.jspf 文件分别包含在每个 JSP 的开头和结尾。

现在，base.jspf 包含什么内容？这:

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@include file="/WEB-INF/views/template/header.jsp"%>
<%@include file="/WEB-INF/views/template/footer.jsp"%>
<link rel="stylesheet"
href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js">   </script>
<script
src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"> </script>

但我不知道 JSP 是否会选择您添加的引导行。但尝试一下。如果它们不起作用，那么就假设我从未回答过这个问题。对不起。哦，确保这个base.jspf位于/WEB-INF/jsp/然后所有 JSP 文件也都在该路径下。

警告:如果您这样做，则必须稍微移动您的 jsp 才能使其正常工作。

我希望这对您有所帮助，并且希望我没有让您进一步困惑或让您的工作更加困难!