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这是我的项目的文件夹结构，

在此处输入图像描述

文件内容；commons.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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"
   xmlns:ui="http://java.sun.com/jsf/facelets"> 
   <h:head></h:head>
   <h:body> 
      <div style="border-width:2px; border-color:green; border-style:solid;">
         <ui:insert name="header" >
            <ui:include src="/templates/header.xhtml" />
         </ui:insert> 
      </div>
      <br/>
      <div style="border-width:2px; border-color:black; border-style:solid;">
         <ui:insert name="content" >
            <ui:include src="/templates/contents.xhtml" />
         </ui:insert>    
      </div>
      <br/>
      <div style="border-width:2px; border-color:red; border-style:solid;">
         <ui:insert name="footer" >
            <ui:include src="/templates/footer.xhtml" />
         </ui:insert>
      </div>
   </h:body>
</html>

内容.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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:ui="http://java.sun.com/jsf/facelets">
   <body>
      <ui:composition> 
         <h1>Default Content</h1>
      </ui:composition> 
   </body>
</html>

页脚.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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:ui="http://java.sun.com/jsf/facelets">
   <body>
      <ui:composition> 
         <h1>Default Footer</h1>
      </ui:composition> 
   </body>
</html>

header.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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:ui="http://java.sun.com/jsf/facelets">
   <body>
      <ui:composition> 
         <h1>Default Footer</h1>
      </ui:composition> 
   </body>
</html>

主页.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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"
   xmlns:ui="http://java.sun.com/jsf/facelets">
   <h:body>
      <ui:composition template="templates/common.xhtml">    
         <ui:define name="content">             
            <br/><br/>
             <h:link value="Page 1" outcome="page1" />
             <h:link value="Page 2" outcome="page2" />          
            <br/><br/>
         </ui:define>
      </ui:composition>
   </h:body>
</html>

page1.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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"
   xmlns:ui="http://java.sun.com/jsf/facelets">
   <h:body> 
      <ui:composition template="templates/common.xhtml">
         <ui:define name="header">
            <h2>Page1 header</h2>
         </ui:define>           
         <ui:define name="content">
            <h2>Page1 content</h2>
             <h:link value="Back To Home" outcome="home" />
         </ui:define> 
         <ui:define name="footer">
            <h2>Page1 Footer</h2>
         </ui:define>           
      </ui:composition> 
   </h:body> 
</html>

page2.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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"
   xmlns:ui="http://java.sun.com/jsf/facelets">
   <h:body> 
      <ui:composition template="templates/common.xhtml">
         <ui:define name="header">
            <h2>Page2 header</h2>
         </ui:define>           
         <ui:define name="content">
            <h2>Page2 content</h2>
             <h:link value="Back To Home" outcome="home" />
         </ui:define> 
         <ui:define name="footer">
            <h2>Page2 Footer</h2>
         </ui:define>           
      </ui:composition> 
   </h:body> 
</html>

当我运行服务器并运行页面时，我看到一个空白屏幕，

我不知何故觉得模板文件没有从正确的位置加载，但我在哪里可以找到文件试图加载的确切位置。

文件的 Html 代码，

<?xml version="1.0" encoding="UTF-8"?>
<!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"
   xmlns:ui="http://java.sun.com/jsf/facelets">
   <h:body>
      <ui:composition template="templates/common.xhtml">    
         <ui:define name="content">             
            <br/><br/>
             <h:link value="Page 1" outcome="page1" />
             <h:link value="Page 2" outcome="page2" />          
            <br/><br/>
         </ui:define>
      </ui:composition>
   </h:body>
</html>
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