如何在Spring webapp中的JSP中获取正确的当前URL

时间:2012-03-14 23:29:23

标签: spring jsp url web-applications request

我正在尝试在Spring webapp中的JSP中获取正确的当前URL。我正在尝试在JSP文件中使用以下片段:

${pageContext.request.requestURL}

问题是返回的URL包含UrlBasedViewResolver定义的前缀和后缀。例如,正确的URL是:

http://localhost:8080/page

但返回的是:

http://localhost:8080/WEB-INF/jsp/page.jsp

10 个答案:

答案 0 :(得分:46)

最好的方法是像这样使用EL

${requestScope['javax.servlet.forward.request_uri']}

答案 1 :(得分:5)

也许你正在寻找类似的东西:

<%= new UrlPathHelper().getOriginatingRequestUri(request) %>

这不是那么优雅,但解决了我的问题。

答案 2 :(得分:5)

jsp文件中:

request.getAttribute("javax.servlet.forward.request_uri")

答案 3 :(得分:3)

我刚刚找到了你问题的正确答案。关键是使用Spring Tags。

<spring:url value="" />

如果将value属性设置为空,Spring将显示在@RequestMapping中设置的映射URL。

答案 4 :(得分:3)

您可以制作拦截器并设置请求属性,例如

  request.setAttribute("__SELF",request.getRequestURI);

和jsp

  <form action="${__SELF}" ></form>   

答案 5 :(得分:3)

任何想要了解reuqest URI之外的人,例如查询字符串,都可以检查RequestDispatcher(Servlet API 3.1+)接口代码中变量的所有名称。

您可以像这样获取查询字符串:

${requestScope['javax.servlet.forward.query_string']}

答案 6 :(得分:3)

试试这个:

<%@ page import="javax.servlet.http.HttpUtils.*" %>
<%= javax.servlet.http.HttpUtils.getRequestURL(request) %> 

答案 7 :(得分:0)

您使用的是哪个Spring版本?我使用Spring 3.1.1.RELEASE对此进行了测试,使用以下简单的应用程序:

Folder structure
-----------------------------------------------------------------------------------

spring-web
    |
     --- src
          |
           --- main
                 |
                  --- webapp
                         |
                          --- page
                         |     |
                         |      --- home.jsp
                         |
                          --- WEB-INF
                               |
                                --- web.xml
                               |
                                --- applicationContext.xml

home.jsp
-----------------------------------------------------------------------------------

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html dir="ltr" lang="en" xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>Welcome to Spring Web!</title>
    </head>
    <body>
        Page URL: ${pageContext.request.requestURL}
    </body>
</html>

web.xml
-----------------------------------------------------------------------------------

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee" metadata-complete="true" version="2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<display-name>org.example.web</display-name>

<servlet>
    <servlet-name>spring-mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/webContext.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>spring-mvc-dispatcher</servlet-name>
    <url-pattern>*.htm</url-pattern>
</servlet-mapping>
</web-app>

applicationContext.xml
-----------------------------------------------------------------------------------

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd">

<context:annotation-config />
<context:component-scan base-package="org.example" />

<bean id="viewResolver"
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/page/" />
    <property name="suffix" value=".jsp" />
</bean>

<mvc:annotation-driven />

访问http://localhost:8080/spring-web/page/home.jsp时,网址正确显示为http://localhost:8080/spring-web/page/home.jsp

答案 8 :(得分:-1)

我在类似的情况下使用了以下内容。然后可以在需要时使用$ {currentUrl}。需要核心标签库

<c:url value = "" var = "currentUrl" ></c:url>

答案 9 :(得分:-2)

*<% String myURI = request.getAttribute("javax.servlet.forward.request_uri").toString(); %>
                <% String[] split = myURI.split("/"); %>
                <% System.out.println("My url is-->"+ myURI
                        + "  My url splitter length --->"+split.length
                        +"last value"+split[4]);%>
<%--                <jsp:param name="split[4]" value="split[4]" /> --%>
                <c:set var="orgIdForController" value="<%= split[4] %>" />
                <a type="button" class="btn btn-default btn-xs"
                    href="${pageContext.request.contextPath}/supplier/add/${orgIdForController}">
                    <span class="glyphicon glyphicon-plus" aria-hidden="true"></span>
                    Add
                </a>
 - List item*