JSF HTTP 状态 404 – 在 Hello world 程序中找不到

Question

我尝试用 jsf 编写一个 hello world 程序。我想在eclipse中运行 xhtml文件（我还没用Java），但是启动不了。我只收到一般错误

HTTP Status 404 – Not Found: Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.

我的其他 .jsp 文件运行没问题。当我运行 xhtml 文件时，这正是 link 在浏览器中显示的： http://localhost:8080/JSFProjectHello/faces/hello-world.xhtml jsf 项目的文件：

/JSFProjectHello/WebContent/hello-world.xhtml

<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:a="http://xmlns.jcp.org/jsf/passthrough">
<h:head>
    <title>Hello World - Input Form</title>
</h:head>
<h:body>
    <h:form>
        <h:inputText id="name" value="#{theUserName}" 
                        a:placeholder="What's your name?" />

        <h:commandButton value="Submit" action="myresponse" />
    </h:form>
</h:body>
</html>

.

/JSFProjectHello/WebContent/hello-world.xhtml

<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html">

<h:head>
    <title>Hello World - Response</title>
</h:head>
<h:body>

    Hello, #{theUserName}

</h:body>
</html>

.

/JSFProjectHello/WebContent/WEB-INF/web.xml

    <?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" id="WebApp_ID" version="4.0">
  <display-name>JSFProjectHello</display-name>
  <welcome-file-list>
    <welcome-file>hello-world.xhtml</welcome-file>
  </welcome-file-list>
  <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>/faces/*</url-pattern>
  </servlet-mapping>
</web-app>

。最后，我应该补充一下，我使用 Java8 作为服务器 Tomcat9。我已经将这个库导入到项目中：

/JSFProjectHello/WebContent/WEB-INF/lib/javax.faces-2.2.8-sources.jar

Answer 1

所以我终于发现了一个错误。我下载了错误的库javax.faces-2.2.8-sources.jar，正确的应该是javax.faces-2.2.8.jar

JSF HTTP 状态 404 – 在 Hello world 程序中找不到

JSF HTTP Status 404 – Not Found in Hello world program

jsf

http-status-code-404