有人可以帮我弄这个吗？
我的Controller类看起来像这样，并且我已经创建了Customer Model类。
/**
* Handles requests for the application home page.
*/
@Controller
@RequestMapping("/customer")
public class CustomerController {
@RequestMapping(method = RequestMethod.GET)
public ModelAndView student() {
return new ModelAndView("customer", "command", new Customer());
}
@RequestMapping(value = "/addCustomer", method = RequestMethod.POST)
public String addStudent(@ModelAttribute Customer customer,
ModelMap model) {
model.addAttribute("customerName", customer.getCustomerName());
model.addAttribute("emailId", customer.getEmailId());
model.addAttribute("sex", customer.getSex());
return "customerDetails";
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name>Customer Form Handling</display-name>
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Processes application requests -->
<servlet>
<servlet-name>Customer</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/Customer/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Customer</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
JSP页面
customer.jsp
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<html>
<head>
<title>Customer Form Handling</title>
</head>
<body>
<h2>Customer Information</h2>
<form:form method="POST" commandName = "command" action="/addCustomer">
<table>
<tr>
<td><form:label path="customerName">customerName</form:label></td>
<td><form:input path="customerName" /></td>
</tr>
<tr>
<td><form:label path="emailId">emailId</form:label></td>
<td><form:input path="emailId" /></td>
</tr>
<tr>
<td><form:label path="sex">sex</form:label></td>
<td><form:input path="sex" /></td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="Submit"/>
</td>
</tr>
</table>
</form:form>
</body>
</html>
customerDetails.jsp
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<html>
<head>
<title>Customer Form Handling</title>
</head>
<body>
<h2>Customer Detail Information</h2>
<table>
<tr>
<td>CustomerName</td>
<td>${customerName}</td>
</tr>
<tr>
<td>emailId</td>
<td>${emailId}</td>
</tr>
<tr>
<td>sex</td>
<td>${sex}</td>
</tr>
</table>
</body>
</html>
Servlet-Context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="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">
<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
<!-- Enables the Spring MVC @Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<!-- <resources mapping="/resources/**" location="/resources/" /> -->
<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<context:component-scan base-package="com.customerinfo.controller" />
</beans:beans>
但是，当我在Tomcat Server中运行此应用程序时。第一个URL指向localhost:8080/controller/。
如果附加，localhost:8080/controller/customer我将获得第一个表单页面。
但是，一旦我单击提交..它说页面未找到错误。
这是一个相对路径问题。您的表单操作为/addCustomer（具有/前缀），如果您将其解析为http://localhost:8080/addCustomer。您想要的可能是http://localhost:8080/appname/customer/addCustomer。
在某些情况下，只需将其更改为即可customer/addCustomer解决此问题，但是如果您也可以通过访问页面http://localhost:8080/appname/customer/（请注意末尾的斜杠），则可能会遇到问题。相对路径将转化为http://localhost:8080/appname/customer/customer/addCustomer
当然，现在您可以考虑这样做/appname/customer/addCustomer并解决问题，但是实际上，您现在正在对上下文路径名进行硬编码。如果有一天上下文路径发生变化，那么所有这些代码都会中断。
我想使用的一种使我的JSP能够确定上下文路径的方法是定义一个根变量
<c:set var="root" value="${pageContext.request.contextPath}"/>
...
<form:form action="${root}/customer/addCustomer">
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我来说两句