我正在尝试使用 Spring Boot 和 JSF 2.2 实现一个 Web 应用程序。
我已经成功地正确设置了 Spring Boot，并且可以使用 Controller 显示正常的 HTML。但 XHTML 页面无法正确呈现。
我相信这与我的配置有关，但我无法弄清楚它是什么。
我在 macOS High Sierra 上使用 IntelliJ IDEA Ultimate 2018.1。
这是我的 pom.xl
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>group</groupId>
<artifactId>spring-jsf-webapp</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
</parent>
<properties>
<start-class>com.latwoa.Application</start-class>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.2.17</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-impl</artifactId>
<version>2.2.17</version>
<scope>compile</scope>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<!-- Package as an executable jar/war -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
我的 web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<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>
<welcome-file-list>
<welcome-file>index.xhtml</welcome-file>
</welcome-file-list>
</web-app>
我的 faces-config.xml:
<?xml version='1.0' encoding='UTF-8'?>
<faces-config version="2.2" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd">
<application>
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
</application>
</faces-config>
以及 JSF bean:
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
@ManagedBean
@RequestScoped
public class JsfBean {
private String welcomeMessage = "Populated by JSF created bean";
public String getWelcomeMessage() {
return welcomeMessage;
}
}
和 XHTML 页面:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:jsf="http://xmlns.jcp.org/jsf">
<f:view>
<h:head></h:head>
<!--Main Body -->
<h:body>
<h1>Welcome to JSF spring boot tutorial</h1>
<h:outputText value="foo bar" />
<h3>#{jsfBean.welcomeMessage}</h3>
</h:body>
</f:view>
</html>
就像我上面提到的，<h1>显示良好。但是<h:outputText value="foo bar" />和#{jsfBean.welcomeMessage}没有渲染。
最佳答案
在此列出 https://dzone.com/articles/developing-jsf-applications-with-spring-boot
您似乎缺少使用 Spring Boot 配置 JSF 的步骤
@EnableAutoConfiguration
@ComponentScan({"com.auth0.samples.bootfaces"})
public class Application extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Bean
public ServletRegistrationBean servletRegistrationBean() {
FacesServlet servlet = new FacesServlet();
return new ServletRegistrationBean(servlet, "*.jsf");
}
}
我还会添加这些监听器以将 spring 上下文与您的托管 bean 集成:
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
关于java - JSF 标签不会在 XHTML 页面中呈现 - Spring Boot + JSF 2.2，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50992644/