2
我使用科特林開發Spring MVC的應用。
我有一個簡單的表格，當我提交時，我得到錯誤404不好請求。我正在使用Jetty服務器和Intellij社區版。我試過調試，但因爲我從未調試過一個Web應用程序，所以它沒有幫助。Spring MVC的錯誤404錯誤的請求科特林
的web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>frontDispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>frontDispatcher</servlet-name>
<url-pattern>/springkotlinmvc/*</url-pattern>
</servlet-mapping>
</web-app>
frontDispatcher-servlet.xml中
<?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"
xsi:schemaLocation="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-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:annotation-config/>
<mvc:annotation-driven/>
<context:component-scan base-package="org.manya.kotlin"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
DataClasses.kt
package org.manya.kotlin
data class Address (val city : String, val state : String)
data class Student (val name : String , val age : Int, val address : Address)
StudentController.kt
package org.manya.kotlin
import org.springframework.stereotype.Controller
import org.springframework.web.bind.annotation.*
import org.springframework.web.servlet.ModelAndView
@Controller
@RequestMapping("/student")
class StudentController
{
//@GetMapping("/student/form")
@GetMapping("form")
fun studentForm() : ModelAndView{
println("called from studentForm()")
return ModelAndView("form")
}
//@PostMapping("springkotlinmvc/student/submitted")
//@RequestMapping(value = "/student/submitted" , method = arrayOf(RequestMethod.POST))
//@RequestMapping("/submitted")
@PostMapping("/submitted")
fun submitted(@ModelAttribute("student") stud : Student) : ModelAndView {
println("called from submitted()")
return ModelAndView("submitted")
}
}
這裏所述方法studentForm（）是完全得到映射到視圖（form.jsp），但提出的方法是沒有得到映射。
form.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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 action="./submitted" method="post">
NAME : <input id="name"/>
AGE : <input id="age"/>
CITY : <input id="address.city"/>
STATE : <input id="address.state"/>
<input type="submit"/>
</form>
</body>
</html>
打開瀏覽器的開發工具並跟蹤用於發送請求的URL。你的表單的'action'是'。/ submit'，可能映射到'/ student/form/submitted'，而Spring的映射是'/ student/submitted'。爲了緩解將來嘗試使用'c：url'或'spring：form'標籤的類似問題：它們是上下文感知的。順便說一句，404是「找不到」，而不是「壞請求」，這很奇怪，你得到的錯誤。 – madhead