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问使用JSF + Spring 3获得正确的html表单操作属性
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Stack Overflow用户

提问于 2013-07-25 17:48:22

回答 1查看 1.4K关注 0票数 0

我正在尝试将Spring与相结合。我有一个Spring3.2JSF类，它返回解析为@Controller视图的ModelAndView。该视图包含一个<h:form>标记。我遇到的问题是，在呈现的action属性上，表单POSTed属性将原始请求URL与名称结合起来来解决视图，从而创建了一个奇怪的、毫无意义的URL，表单就是POSTed。我想要的只是视图名，没有原始的请求URL。

下面是我的控制器类(org.my.test.MainController)：

@Controller
@RequestMapping("/items")
public class MainController
{
  @RequestMapping(value="/{itemId}", method=RequestMethod.GET)
  public ModelAndView retrieveItem( @PathVariable long itemId ) {

    /* Retrieve item */

    ModelAndView mav = new ModelAndView();
    mav.addObject ("itemName", "A retrieved item");
    mav.addObject ("itemId", itemId);
    mav.setViewName ("/items");
    return mav;
  }
}

这是我的JSF模板(/items.xhtml)

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html">
<h:head>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
    <title>Edit item</title>
</h:head>
<h:body>
    <h:form>
        <h3>Edit item</h3>
        <p>
            Item name: <h:inputText name="itemName" value="#{itemName}" />
        </p>
        <p>
            Item id: <h:inputText name="itemId" value="#{itemId}" />
        </p>
        <p>
            <h:commandButton value="Submit" />
        </p>
    </h:form>
</h:body>
</html>

当我请求页面http://localhost:8081/items/12345时，所提供的内容如下：

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
<html xmlns="http://www.w3.org/1999/xhtml"><head>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
    <title>Edit item</title></head><body><form id="j_id_6" name="j_id_6" method="post" action="/items/12345/items.xhtml" enctype="application/x-www-form-urlencoded">
        <h3>Edit item</h3>
        <p>
            Item name: <input id="j_id_6:j_id_8" name="j_id_6:j_id_8" type="text" value="A retrieved item" />
        </p>
        <p>
            Item id: <input id="j_id_6:j_id_a" name="j_id_6:j_id_a" type="text" value="12345" />
        </p>
        <p><input id="j_id_6:j_id_c" name="j_id_6:j_id_c" type="submit" value="Submit" />
        </p><input type="hidden" name="j_id_6_SUBMIT" value="1" /><input type="hidden" name="javax.faces.ViewState" id="javax.faces.ViewState" value="oyc7wGGKZrPGinPPmrv9PmTDy0GBlI3c+pjWpdK0KuY69faJ" /></form></body>
</html>

我的问题是说action="/items/12345/items.xhtml"，我想要的是action="/items"或action="/items.xhtml"

我的问题有两个部分:为什么我的设置将请求URL和视图ID合并成这样，以及如何使它停止？

这是web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<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_2_5.xsd"
    id="WebApp_ID" version="2.5">

    <display-name>Minimal JSF + Spring test</display-name>

    <!-- - Location of the XML file that defines the root application context. 
        - Applied by ContextLoaderListener. -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/spring/application-config.xml</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <listener>
        <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
    </listener>


    <!-- - Servlet that dispatches request to registered handlers (Controller 
        implementations). -->
    <servlet>
        <servlet-name>ui</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/ui-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>ui</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!-- Just here so the JSF implementation can initialize, *not* used at runtime -->
    <servlet>
        <servlet-name>faces</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!-- Just here so the JSF implementation can initialize -->
    <servlet-mapping>
        <servlet-name>faces</servlet-name>
        <url-pattern>*.faces</url-pattern>
    </servlet-mapping>

</web-app>

这里是Spring ui-servlet.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:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:faces="http://www.springframework.org/schema/faces"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        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.xsd
        http://www.springframework.org/schema/faces http://www.springframework.org/schema/faces/spring-faces-2.0.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

    <context:component-scan base-package="org.my.test" />
    <mvc:annotation-driven />
    <bean id="faceletsViewResolver"
        class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="viewClass" value="org.springframework.faces.mvc.JsfView" />
        <property name="prefix" value="" />
        <property name="suffix" value=".xhtml" />
    </bean>

</beans>

这里是主要的Spring application-config.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:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:faces="http://www.springframework.org/schema/faces"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        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.xsd
        http://www.springframework.org/schema/faces http://www.springframework.org/schema/faces/spring-faces-2.0.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

    <context:component-scan base-package="org.my.test" />
</beans>

这是faces-config.xml

<?xml version='1.0' encoding='UTF-8'?>
<faces-config xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd"
        version="2.0">

    <application>
        <el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
    </application>

</faces-config>

这都是在嵌入式Jetty9.0.4中运行的。我尝试过两种不同的JSF实现，Apache 2.1.11和mojarra2.2.1，两者效果相同。春季版本为3.2.3。

jsf

spring

回答 1

Stack Overflow用户

回答已采纳

发布于 2013-07-26 21:59:45

将url-mapping中的web.xml从"/“更改为"/*”更正了问题。

实际上，一切都符合Servlet规范(Java规范3.0 Rev a，第12.2节，第116页)：

以/字符开头、以/*后缀结尾的字符串用于路径映射。 ..。
仅包含/字符的字符串指示应用程序的“默认”servlet。在本例中，servlet路径是请求URI，减去上下文路径，路径信息为null。

(感谢您在Coderanch：http://www.coderanch.com/t/366340/Servlets/java/servlet-mapping-url-pattern上发表的这篇文章)

(JavaServlet3.0规范可在http://download.oracle.com/otndocs/jcp/servlet-3.0-mrel-eval-oth-JSpec/上使用)

票数 0

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原文链接：

https://stackoverflow.com/questions/17865217

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