您好，我正在从教程网站学习 Spring MVC，我遇到这样的情况:当我从 jsp 页面提交 html 时，它应该得到处理并返回成功页面，但是当我提交表单时，它给了我 404 错误。所以请有人帮助我如何解决我的问题，下面是我的完整代码。
最初当我以 http://localhost:3399/FristSpringMVCProject/admissionForm.html 形式提出请求时 我的请求得到了很好的处理，并给了我所请求的表单页面，但是当我尝试提交表单时，它抛出以下错误，我在帖子末尾附上了该错误的图像文件。
这是我的web.xml文件
-----------------------
<?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>FristSpringMVCProject</display-name>
<servlet>
<servlet-name>spring-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>spring-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
这是我的调度程序 Servlet spring-dispatcher-servlet.xml
-------------------------------------------------- ---------
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
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/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
<context:component-scan base-package="com.gontuseries.hellocontroller" />
<mvc:annotation-driven/>
<!-- <bean id="HandlerMapping" class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>
<bean name="/welcome.html" class="com.gontuseries.hellocontroller.HelloController"></bean> -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
这是我的前端 Controller StudentAdmissionController.java
-------------------------------------------------- ---------
package com.gontuseries.hellocontroller;
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
public class StudentAdmissionController {
@RequestMapping(value="/admissionForm.html",method=RequestMethod.GET)
public ModelAndView getAdmissionForm(){
System.out.println("inside getAdmissionForm");
ModelAndView model=new ModelAndView("AdmissionForm");
return model;
}
@RequestMapping(value="/submitAdmissionForm.html",method=RequestMethod.POST)
public ModelAndView submitAdmissionForm(@ModelAttribute("student") String student){
ModelAndView model=new ModelAndView("AdmissionSuccess");
model.addObject("message","Thanks for registering with us");
model.addObject("student",student);
return model;
}
}
这是我的学生 Bean Student.java
------------------------------------------------
package com.gontuseries.hellocontroller;
public class Student {
private String name;
private String place;
public String getName(){
return name;
}
public void setName(String name){
this.name=name;
}
public String getPlace() {
return place;
}
public void setPlace(String place) {
this.place = place;
}
}
这是我的AdmissionForm.jsp
----------------------------
<html>
<head>
</head>
<body>
<h1>Please fill following details to complete registration</h1>
<form action="/FirstSpringMVCProject/submitAdmissionForm.html" method="post">
<p>Student's Name : <input type="text" name="name"/></p>
<p>Place : <input type="text" name="place"/></p>
<input type="submit" value="Submit Details"/>
</form>
</body>
</html>
This is my AdmissionSuccess.jsp
-------------------------------
<html>
<head>
</head>
<body>
<h1>Your request have been processed successfully</h1>
<h2>${message}</h2>
<h2>with following details...</h2>
<h3>Name : ${student.name}</h3>
<h3>Place : ${student.place}</h3>
</body>
</html>
这是我提交表单页面时遇到的错误
最佳答案
您的共享代码中几乎没有错误。此外，您的帖子需要更正，因为它混淆了代码和您的评论。 我想指出一些更正。
AdmissionForm.jsp
<form action="submitAdmissionForm.html" method="post">在jsp中应该足够了。StudentAdmissionController.java
@RequestMapping(value="/submitAdmissionForm.html",method=RequestMethod.POST) public ModelAndView submitAdmissionForm(@ModelAttribute("student") Student student){您应该只获取 Student 对象。您正在选读 String 学生。AdmissionForm.jsp
<h3>Name : ${student.name}</h3>
<h3>Place : ${student.place}</h3>
当您在 Controller 中设置字符串时，这将不起作用。
希望这会有所帮助。
关于java - 请求未从 jsp 页面转发到调度程序 servlet，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39355631/