Question

我尝试在使用Prettyfaces进行URL重写的viewAction中发送404响应。

将应用程序部署到glassfish 4服务器。

如果我使用 http://foo.bar/home 请求索引视图，我会收到以下警告：

Response has already been committed, and further write operations are not permitted. This may result in an IllegalStateException being triggered by the underlying application. To avoid this situation, consider adding a Rule `.when(Direction.isInbound().and(Response.isCommitted())).perform(Lifecycle.abort())`, or figure out where the response is being incorrectly committed and correct the bug in the offending code.|#]

为什么我会收到此警告，我该如何避免？

IndexBean.java

@Named
@ViewScoped
public class IndexBean implements Serializable{

    public String actionIndex() throws IOException {
        FacesContext.getCurrentInstance().getExternalContext().responseSendError(404, "This is a test error.");
        return null;
    }

}

我从这个视图中调用了这个动作：

的index.xhtml

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://xmlns.jcp.org/jsf/html"
      xmlns:f="http://xmlns.jcp.org/jsf/core"
      xmlns:ui="http://xmlns.jcp.org/jsf/facelets">

<f:metadata>
    <f:viewAction action="#{indexBean.actionIndex}" onPostback="false"/>
</f:metadata>

<h:body>

    <h1>Index</h1>

</h:body>

</html>

这是我的 pretty-config.xml：

<pretty-config xmlns="http://ocpsoft.com/prettyfaces/3.3.3"
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
               xsi:schemaLocation="http://ocpsoft.com/prettyfaces/3.3.3
               http://ocpsoft.com/xml/ns/prettyfaces/ocpsoft-pretty-faces-3.3.3.xsd">

      <url-mapping id="home">
          <pattern value="/home" />
          <view-id value="/index.xhtml" />
      </url-mapping>

</pretty-config>

的web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
    <display-name>TestWebApp</display-name>

    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.xhtml</url-pattern>
    </servlet-mapping>

    <error-page>
        <error-code>404</error-code>
        <location>/404.xhtml</location>
    </error-page>
</web-app>

的pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>ch.drshit</groupId>
  <artifactId>TestWebApp</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>TestWebApp</name>
  <url>http://maven.apache.org</url>
  <dependencies>

    <!-- JEE 7 -->
    <dependency>
      <groupId>javax</groupId>
      <artifactId>javaee-api</artifactId>
      <version>7.0</version>
    </dependency>

    <!-- Pretty Faces -->
    <dependency>
      <groupId>org.ocpsoft.rewrite</groupId>
      <artifactId>rewrite-servlet</artifactId>
      <version>3.4.1.Final</version>
    </dependency>
    <dependency>
      <groupId>org.ocpsoft.rewrite</groupId>
      <artifactId>rewrite-config-prettyfaces</artifactId>
      <version>3.4.1.Final</version>
    </dependency>

  </dependencies>
</project>

＆＃34;响应已经提交......＆＃34;，当从f：viewAction调用responseSendError时

0 个答案: