我有关于此操作的doubr。创建此类控制器有效:
server.session.cookie.http-only= # "HttpOnly" flag for the session cookie. configuration property.
但是使用GetMapping和PostMapping不起作用,项目正常运行,但不显示页面调用。 IE浏览器。 :
@Controller
public class StudentController {
@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";
}
代码已满,以下方式正常工作:
Student.java
@Controller
public class StudentController {
@GetMapping("/student")
public ModelAndView student() {
return new ModelAndView("student", "command", new Student());
}
@PostMapping("/addStudent")
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";
}
}
StudentController
public class Student {
private Integer age;
private String name;
private Integer id;
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
}
result.jsp中
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
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 StudentController {
@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";
}
}
student.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<!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>Spring MVC Form Handling</title>
</head>
<body>
<h2>Submitted Student Information</h2>
<table>
<tr>
<td>Name</td>
<td>${name}</td>
</tr>
<tr>
<td>Age</td>
<td>${age}</td>
</tr>
<tr>
<td>ID</td>
<td>${id}</td>
</tr>
</table>
</body>
</html>
SpringContext.xml
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<!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>Spring MVC Form Handling</title>
</head>
<body>
<h2>Student Information</h2>
<form:form method="POST" action="/HelloForm/addStudent">
<table>
<tr>
<td><form:label path="name">Name</form:label></td>
<td><form:input path="name" /></td>
</tr>
<tr>
<td><form:label path="age">Age</form:label></td>
<td><form:input path="age"/></td>
</tr>
<tr>
<td><form:label path="id">ID</form:label></td>
<td><form:input path="id"/></td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="Submit" />
</td>
</tr>
</table>
</form:form>
</body>
</html>
的web.xml
<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<context:component-scan base-package="com" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp"/>
</bean>
</beans>
答案 0 :(得分:1)
在 SpringContext.xml 文件中,使用 DefaultAnnotationHandlerMapping 类(自Spring 3.2以来不推荐使用)来隐式处理@RequestMapping注释,这是不明白的像@GetMapping,@ PostMapping ......这样的新注释(自4.3版开始引入Spring),因此它忽略了新的注释。要使用新注释,您应该使用 RequestMappingHandlerMapping 类。您可以在SpringContext.xml中简单地定义此bean,如下所示:
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<!-- you also need to define an adapter, otherwise you will get a ServletException while handling the request -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
但推荐的方法是使用&#34; MVC XML命名空间&#34;,它将为您完成上述工作。将以下代码添加到SpringContext.xml中(您应该首先定义mvc名称空间):
<mvc:annotation-driven/>
有关详细信息,请参阅here。
答案 1 :(得分:1)
您可以将@Controller更改为@RestController,然后使用@GetMapping和@PostMapping运行代码。这应该有用。
答案 2 :(得分:0)
匿名以上悲伤正确,将@Controller更改为@RestController。这是另一个决定,这是第一个决定-在@GetMapping或@PostMapping之后添加@ResponseBody。