java - spring mvc 4 中页面未找到错误，尽管它存在

Question

我正在使用 spring mvc 4 开发一个小型应用程序，它获取用户的输入并将其插入数据库。这是dispatcher-servlet.xml

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

        <context:component-scan base-package="controllers.FormController" />

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

</beans>

这是我的 Controller

    @Controller
@RequestMapping("/form")
public class FormController {

    @Autowired
    private FormService formService;

    public FormService getFormService() {
        return formService;
    }

    public void setFormService(FormService formService) {
        this.formService = formService;
    }
    @RequestMapping(value = "/userForm", method = RequestMethod.GET)
public String showUser(Model model){
    User user = new User();
    model.addAttribute("userForm", user);
    return "index";
}
    @RequestMapping(value = "/adduser", method = RequestMethod.POST)
    public String addUser(@ModelAttribute("userForm") User user, BindingResult result, Model model){
        formService.insert(user.getUsername(), user.getPassword());
        return "success";
    }
}

当我在浏览器中输入以下网址“http://localhost:8080/FormSpring/form/userForm.htm ”时，它显示页面未找到错误，尽管成功页面位于 WEB-INF/jsp 目录中

这是 web.xml 文件

    <?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.htm</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>redirect.jsp</welcome-file>
    </welcome-file-list>
</web-app>

此外，项目的结构如下图所示

Answer 1

您的 Controller 映射到adduser，而不是adduser.htm!同样在浏览器中，您执行 GET，而不是 POST 请求。