org.springframework.web.servlet.PageNotFound - 在 DispatcherServlet 中找不到名称为 'SpringMVC' 的 URI [/con

Question

我是Spring技术的新手。我创建了一个SpringMVC项目，当我尝试使用Tomcat运行该项目时，我在eclipse控制台中遇到了以下错误。请帮帮我，我在谷歌上搜索了几个选项，但毫无头绪。我不知道哪里出了问题。。。

错误：

org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/controller/] in DispatcherServlet with name 'SpringMVC'

HomeController.java

@Controller
public class HomeController {
@RequestMapping(value = "/student", method = RequestMethod.GET)
public ModelAndView student() {
return new ModelAndView("student", "command", new Student());
}
@RequestMapping(value = "/addStudent", method = RequestMethod.POST)
public String addStudent(@ModelAttribute("SpringWeb")Student student, 
ModelMap model) {
model.addAttribute("name", student.getName());
model.addAttribute("age", student.getAge());
model.addAttribute("id", student.getId());
return "result";
}
}

web.xml

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/root-context.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/SpringMVC-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

SpringMVC-servlet.xml

<mvc:annotation-driven />
<context:component-scan base-package="com.spring.controller" />
<resources mapping="/resources/**" location="/resources/" />
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>

Answer 1

您没有控制器的映射。现在只有/student作为GET，/addStudent作为POST。即使将@RequestMapping("/controller")添加到控制器类中，它也不会起作用，因为仍然没有/controller的映射。如您所见，映射将用于/controller/student和/controller/addStudent。我建议您将请求URL更改为仅/student和/addStudent，或者如果您需要此/controllerURL，您应该有如下所示的其他方法

@RequestMapping("controller")
public String anyMethodName(Model model) {
//code goes here
return "anythink";
}