java - 未找到具有 URI 的 HTTP 请求的映射....在名称为 'main' 的 DispatcherServlet 中

我最近正在研究 spring mvc，我正在使用“spring in practice”一书，这是我尝试的第一个 mvc 程序，但出现以下错误

 WARN  PageNotFound:1101 - No mapping found for HTTP request with URI [/MVC_BOOK_Annotation/main/list.do] in DispatcherServlet with name 'main'

下面是我的代码

名册 Controller

package com.web;

import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import com.model.Member;

@Controller
public final class RosterController {
    private List<Member> members = new ArrayList<Member>();

    public RosterController() {
        members.add(new Member("John", "Lennon"));
        members.add(new Member("Paul", "McCartney"));
        members.add(new Member("George", "Harrison"));
        members.add(new Member("Ringo", "Starr"));
    }

    @RequestMapping
    public void list(Model model) {
        model.addAttribute(members);
    }

    @RequestMapping
    public void member(@RequestParam("id") Integer id, Model model) {
        model.addAttribute(members.get(id));
    }
}

成员(member).java

package com.model;

public class Member {
    private String firstName;
    private String lastName;

    public Member() {
    }

    public Member(String firstName, String lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
    }

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public String toString() {
        return firstName + " " + lastName;
    }
}

main-servlet.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:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">

    <bean class="com.web.RosterController" name="/roster/"></bean>

    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver"
        p:prefix="/WEB-INF/jsp/" p:suffix=".jsp">
    </bean>
</beans>

web.xml

<web-app id="AppName" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
         http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <display-name>Archetype Created Web Application</display-name>
    <servlet>
        <servlet-name>main</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>main</servlet-name>
        <url-pattern>/main/*</url-pattern>
    </servlet-mapping>
</web-app>

列表.jsp

<%@ 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 PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
    <ul>
        <c:forEach var="member" items="${memberList}" varStatus="status">
            <li><a href="member.do?id=${status.index}"> <c:out
                        value="${member}"></c:out>
            </a></li>
        </c:forEach>
    </ul>
</body>
</html>

成员.jsp

<%@ 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 PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
    <h1>Member: ${member}</h1>
    <p>
        <a href="list.do">Back</a>
    </p>
</body>
</html>

上面的代码和书上的代码差不多，但是我还是找不到哪里错了。我在list()和member()方法上附加了一个@RequestMapping属性，这将它们标识为请求服务方法.下面是我的项目结构截图。

enter image description here

最佳答案

您需要在您的 bean 定义中的 /roster/ 之后添加 *。

尝试以下设置:

<bean class="com.web.RosterController" name="/roster/*"></bean>

代替

<bean class="com.web.RosterController" name="/roster/"></bean>

并访问/MVC_BOOK_Annotation/main/roster/list.do

关于java - 未找到具有 URI 的 HTTP 请求的映射....在名称为 'main' 的 DispatcherServlet 中，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25226314/