【发布时间】：2017-08-19 23:38:31
【问题描述】：
我正在开发一个简单的 Spring Hibernate Maven Web 应用程序。
如果我从web.xml 中删除<welcome-file-list>..，它仍然不会进入控制器，而是给出404。
我在 SO 的答案中尝试了各种解决方案，但尚未成功。
这是我的代码：
web.xml:(webapp/web.xml)
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>App</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/root-context.xml</param-value>
</context-param>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
springmvc-servlet.xml：(webapp/springmvc-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:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="app" />
<mvc:default-servlet-handler />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close" p:driverClassName="com.mysql.jdbc.Driver"
p:url="jdbc:mysql://localhost:3306/app" p:username="root"
p:password="root" />
<!-- 10.210.13.251 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>WEB-INF/hibernate.cfg.xml</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name = "prefix" value = "/WEB-INF/views/" />
<property name = "suffix" value = ".jsp" />
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<context:annotation-config />
</beans>
控制器：(main/java/app/contollers/UserController)
package app.controller;
import app.model.UserMaster;
import app.service.UserMasterService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
@Controller
@RequestMapping("/")
public class UserController {
@Autowired
private UserMasterService userMasterService;
@RequestMapping(value="/",method=RequestMethod.GET)
public ModelAndView getHomePage(){
return new ModelAndView("register", "userForm", new UserMaster());
}
@RequestMapping(value="/register",method=RequestMethod.POST)
public String registerUser(@ModelAttribute("userForm") UserMaster userMaster){
userMasterService.saveUser(userMaster);
return "success.html";
}
}
register.jsp：(webapp/views/register.jsp)
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form:form action="register" method="post" commandName="userForm">
<table border="0">
<tr>
<td colspan="2" align="center"><h2>Spring MVC Form Demo - Registration</h2></td>
</tr>
<tr>
<td>User Name:</td>
<td><form:input path="userid" /></td>
</tr>
<tr>
<td>Password:</td>
<td><form:password path="password" /></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value="Register" /></td>
</tr>
</table>
</form:form>
</body>
</html>
我在这里缺少什么，为什么它给我 404？ 我使用 Netbeans 8.0.2 IDE
【问题讨论】：
-
为什么必须删除它？
-
既然你已经给了
"/"作为你的类的映射，你应该使用映射""和"register"作为方法，因为类映射在所有情况下都预先存在. -
@takendarkk，如果我不删除它，它会尝试找到指定为欢迎文件的文件，我没有，所以再次抛出 404。
-
那么您的 servlet 一定不能正确注册，因为在应用程序旁边有欢迎文件列表是很常见的。
-
@Kayaman，是的，谢谢，但解决方案没有解决我的问题
标签： java xml spring hibernate jsp