在我的Spring MVC应用程序中,我想使用AJAX将页面从index.jsp
页面重定向到final.jsp
页面。但是,当我单击应用程序中的Redirect Page
按钮时,未显示重定向页面(final.jsp)。我在我的Java代码中使用System.out.println("inside /redirect");
和System.out.println("inside /finalPage");
来检查是否在服务器上接收到AJAX GET请求,并且只打印inside /redirect
这意味着{{ 1}}没有被调用。此外,我的浏览器控制台没有显示任何错误。那么请告诉我,问题是什么,问题出在哪里?我在下面发布了完整的代码:
WebController.java
/finalPage
的index.jsp
package com.tutorialspoint;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
public class WebController {
@RequestMapping(value = "/index", method = RequestMethod.GET)
public String index() {
return "index";
}
@RequestMapping(value = "/redirect", method = RequestMethod.GET)
public String redirect() {
System.out.println("inside /redirect");
return "redirect:/finalPage";
}
@RequestMapping(value = "/finalPage", method = RequestMethod.GET)
public String finalPage() {
System.out.println("inside /finalPage");
return "final";
}
}
final.jsp
<%@taglib uri = "http://www.springframework.org/tags/form" prefix = "form"%>
<html>
<head>
<title>Spring Page Redirection</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
<h2>Spring Page Redirection</h2>
<p>Click below button to redirect the result to new page</p>
<button onClick="redFun()">Redirect Page</button>
<script>
function redFun() {
$.ajax({
type : "GET",
url : "/HelloWeb/redirect"
});
}
</script>
</body>
</html>
的web.xml:
<%@taglib uri = "http://www.springframework.org/tags/form" prefix = "form"%>
<html>
<head>
<title>Spring Page Redirection</title>
</head>
<body>
<h2>Redirected Page</h2>
</body>
</html>
的HelloWeb-servlet.xml中
<web-app id = "WebApp_ID" version = "2.4"
xmlns = "http://java.sun.com/xml/ns/j2ee"
xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation = "http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Spring MVC Application</display-name>
<servlet>
<servlet-name>HelloWeb</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HelloWeb</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
答案 0 :(得分:1)
您的浏览器未遵循重定向,因为您正在使用ajax来点击控制器的重定向方法。您有两种选择:
根本不使用ajax,让浏览器自然地回复重定向状态。
function redFun() {
window.location = "/HelloWeb/redirect";
}
查找对XmlHttpRequest的HTTP 302响应,并将window.location更改为响应中Location头的值:
function redFun() {
$.ajax({
type: "GET",
url: "/HelloWeb/redirect"
}).fail(function (jqXHR, status, err) {
if (jqXHR.status === 302) {
window.location = jqXHR.getResponseHeader('Location');
}
});
}