Spring Boot 2.7.1 与 JSF 2.2 (Mojarra) 和 Primefaces 6.2.9 集成

我已经使用下面的堆栈进行了工作设置 -

春季MVC 5
JSF Mojarra 2.2.14
Primefaces 6.2.9

• 该应用程序是作为 WAR 构建的。
• 它具有配置了 FacesServlet 的 web.xml 来服务 *.xhtml 请求。 JSF 和 Primefaces 的所有初始化参数都定义为 web.xml 中的上下文参数。
• 它还具有定义了 SpringBeanFacesELResolver 的 faces-config.xml。
• @javax.faces.bean.ManagedBean 与 @ManagedProperty 和 JSF 作用域一起用于所有 JSF Managed Bean。托管 Bean 使用 @managementproperty 获取对 Spring beans 的引用，并进行服务调用以填充要在 JSF XHTML 页面中显示的数据。
• @ManagedBean 类也使用 @PostConstruct 进行初始化。

这在 weblogic 应用服务器和 tomcat 中都运行良好。

我们正在尝试使用最新的 2.7.1 版本将其转换为 Spring boot 项目。作为本次活动的一部分

• web.xml 已替换为 java 配置类，如下所示 -

@SpringBootApplication(scanBasePackages = {"com.demo.spring.boot.jsfprimefaces","com.xxx.eee"})
@ImportResource({"classpath:spring-root-config.xml","classpath:spring-security-config.xml","classpath:spring-restclient-config.xml"})
public class JsfPrimefacesApplication implements ServletContextInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        servletContext.setInitParameter("com.sun.faces.forceLoadConfiguration", Boolean.TRUE.toString()); 
        // Set JSF/Primefaces init params
        servletContext.setInitParameter("javax.faces.DEFAULT_SUFFIX", ".xhtml");
        servletContext.setInitParameter("javax.faces.STATE_SAVING_METHOD", "client");
        servletContext.setInitParameter("javax.faces.PROJECT_STAGE", "Production");
        servletContext.setInitParameter("javax.faces.VALIDATE_EMPTY_FIELDS", "false");
        servletContext.setInitParameter("javax.faces.FACELETS_SKIP_COMMENTS", "true");
        //servletContext.setInitParameter("javax.faces.CONFIG_FILES", "/WEB-INF/faces-config.xml");
        servletContext.setInitParameter("javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE", "true");

        servletContext.setInitParameter("primefaces.THEME", "aristo");
        servletContext.setInitParameter("primefaces.PUBLIC_CAPTCHA_KEY", "DDDDD");
        servletContext.setInitParameter("primefaces.PRIVATE_CAPTCHA_KEY", "EEEEE");
        servletContext.setInitParameter("primefaces.UPLOADER", "commons");

        FacesInitializer facesInitializer = new FacesInitializer();
        facesInitializer.onStartup(null, servletContext);

    }

    
    public static void main(String[] args) {
        SpringApplication.run(JsfPrimefacesApplication.class, args);
    }

}

很少有其他 @Configuration 类 -

@Configuration
public class PortalFilterConfiguration {

    @Bean
    public FilterRegistrationBean<RewriteFilter> rewriteFilter() {
        FilterRegistrationBean<RewriteFilter> rwFilter = new FilterRegistrationBean<RewriteFilter>(new RewriteFilter());
        rwFilter.setDispatcherTypes(
                EnumSet.of(DispatcherType.FORWARD, DispatcherType.REQUEST, DispatcherType.ASYNC, DispatcherType.ERROR));
        rwFilter.addUrlPatterns("/*");
        return rwFilter;
    }
}

@Configuration
public class PortalListenerConfiguration {

    @Bean
    public ServletListenerRegistrationBean<JsfApplicationObjectConfigureListener> jsfConfigureListener() {
        return new ServletListenerRegistrationBean<JsfApplicationObjectConfigureListener>(
                new JsfApplicationObjectConfigureListener());
    }

    static class JsfApplicationObjectConfigureListener extends ConfigureListener {

        @Override
        public void contextInitialized(ServletContextEvent sce) {
            super.contextInitialized(sce);

            ApplicationFactory factory = (ApplicationFactory) FactoryFinder
                    .getFactory(FactoryFinder.APPLICATION_FACTORY);
            Application app = factory.getApplication();

            app.addELResolver(new SpringBeanFacesELResolver());
        }
    }

}

@Configuration
public class PortalServletConfiguration {

    @Bean
    public ServletRegistrationBean<FacesServlet> jsfServletRegistration(ServletContext servletContext) {
        ServletRegistrationBean<FacesServlet> srb = new ServletRegistrationBean<FacesServlet>();
        srb.setServlet(new FacesServlet());
        srb.setUrlMappings(Arrays.asList("*.xhtml"));
        srb.setLoadOnStartup(1);
        return srb;
    }
}

以下是 pom.xml 内容 -

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.1</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.demo.spring.boot</groupId>
    <artifactId>jsf-primefaces</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>jsf-primefaces</name>
    <description>Demo project for Spring Boot JSF Primefaces</description>
    <packaging>war</packaging>
    <repositories>
        <repository>
            <id>no-commons-logging</id>
            <name>No-commons-logging Maven Repository</name>
            <layout>default</layout>
            <url>http://repository.jboss.org/</url>
        </repository>
        <repository>
            <id>prime-repo</id>
            <name>Prime Repo</name>
            <url>http://repository.primefaces.org</url>
        </repository>
        <repository>
            <id>localrepository</id>
            <url>file://../3rd-Party-Dependencies</url>
        </repository>
    </repositories>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jdbc</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-ldap</artifactId>
        </dependency>
        <dependency>
            <groupId>com.oracle.database.jdbc</groupId>
            <artifactId>ojdbc8</artifactId>
            <scope>runtime</scope>
        </dependency>
        <!-- JSF Libraries -->
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-api</artifactId>
            <version>2.2.14</version>
        </dependency>
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-impl</artifactId>
            <version>2.2.14</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <!-- Primefaces & its dependent jars -->
        <dependency>
            <groupId>org.primefaces</groupId>
            <artifactId>primefaces</artifactId>
            <version>6.2.9</version>
        </dependency>

        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
        </dependency>
        <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>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>18.0</version>
        </dependency>   
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
                <groupId>net.sf.opencsv</groupId>
                <artifactId>opencsv</artifactId>
                <version>2.3</version>
        </dependency>
        <dependency>
            <groupId>org.apache.pdfbox</groupId>
            <artifactId>pdfbox</artifactId>
            <version>2.0.24</version>
        </dependency>           
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <outputDirectory>src/main/webapp/WEB-INF/classes</outputDirectory>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

faces-config.xml 放置在 src/main/webapp/WEB-INF 下。内容如下——

<faces-config
    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"
    version="2.2">
<application>
<el-resolver>
            org.springframework.web.jsf.el.SpringBeanFacesELResolver
        </el-resolver>
<locale-config>.....
<resource-bundle>.....
 </application>
</faces-config>

ISSUE

应用程序启动正常。但似乎没有一个 JSF 托管 bean 被初始化，因为我根本没有看到 @PostContruct 方法被调用。所有使用托管 bean 名称的 EL 引用（例如 #{}）都会失败，并出现以下错误：

javax.faces.view.facelets.TagAttributeException Attribute did not evaluate to a String or Locale: null

当我在 @ManagedBean 之上添加 @Component 到 JSF 托管 bean 之一时，这会导致调用 @PostConstruct ，这可能意味着在我们的旧设置中，@ManagedBean 类由 JSF 加载，但在这个新设置中，它们会得到被忽略。

任何人都可以帮忙建议需要做什么才能使这项工作成功吗？

Regards
Jacob

UPDATE 1
根据评论，修改了配置类如下 -

@SpringBootApplication(scanBasePackages = { "com.demo.spring.boot.jsfprimefaces", "com.ddd.efulfillment" })
@ImportResource({ "classpath:spring-root-config.xml", "classpath:spring-security-config.xml",
        "classpath:spring-restclient-config.xml" })
public class JsfPrimefacesApplication extends SpringBootServletInitializer {

    @Bean
    public ServletContextInitializer servletContextInitializer() {
        return servletContext -> {
            //servletContext.addListener(com.sun.faces.config.ConfigureListener.class);
            servletContext.setInitParameter("com.sun.faces.forceLoadConfiguration", Boolean.TRUE.toString());
            // Set JSF/Primefaces init params
            servletContext.setInitParameter("javax.faces.DEFAULT_SUFFIX", ".xhtml");
            servletContext.setInitParameter("javax.faces.STATE_SAVING_METHOD", "client");
            servletContext.setInitParameter("javax.faces.PROJECT_STAGE", "Production");
            servletContext.setInitParameter("javax.faces.VALIDATE_EMPTY_FIELDS", "false");
            servletContext.setInitParameter("javax.faces.FACELETS_SKIP_COMMENTS", "true");
            // servletContext.setInitParameter("javax.faces.CONFIG_FILES",
            // "/WEB-INF/faces-config.xml");
            servletContext.setInitParameter("javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE",
                    "true");

            servletContext.setInitParameter("primefaces.THEME", "aristo");
            servletContext.setInitParameter("primefaces.PUBLIC_CAPTCHA_KEY",
                    "ddd");
            servletContext.setInitParameter("primefaces.PRIVATE_CAPTCHA_KEY",
                    "ssss");
            servletContext.setInitParameter("primefaces.UPLOADER", "commons");
            FacesInitializer facesInitializer = new FacesInitializer();
            facesInitializer.onStartup(null, servletContext);

        };
    }

public static void main(String[] args) {
        SpringApplication.run(JsfPrimefacesApplication.class, args);
    }

但仍然存在同样的问题。

在调试时，似乎托管 bean 通过方法“processAnnotations(ManagedBean.class);”在 com.sun.faces.config.processor.ManagedBeanConfigProcessor 类中标识。它有类似于下面的代码

 FacesContext ctx = FacesContext.getCurrentInstance();
        ApplicationAssociate associate =
              ApplicationAssociate.getInstance(ctx.getExternalContext());
        AnnotationManager manager = associate.getAnnotationManager();
        manager.applyConfigAnnotations(ctx,
                                      annotationType,
                                      ConfigManager.getAnnotatedClasses(ctx).get(annotationType));

我认为 @ManagedBean 注释类的 MAP 为 NULL。不知道为什么。

只有在将具有这些注释的类显式提供给 FacesInitializer 后，JSF 2.2 注释才会被识别，如下所示 -

facesInitializer.onStartup(loadJSFAnnotatedClasses(package1...packageN),servletContext);

import com.google.common.collect.ImmutableMap;
import com.google.common.reflect.ClassPath;

private Set<Class<?>> loadJSFAnnotatedClasses(String... packageNames) {
        Set<Class<?>> annotatedClasses = new HashSet<Class<?>>();
        try {
            for (String packageName : packageNames) {
                annotatedClasses.addAll(ClassPath.from(ClassLoader.getSystemClassLoader()).getAllClasses().stream()
                        .filter(clazz -> clazz.getPackageName().equalsIgnoreCase(packageName))
                        .map(clazz -> clazz.load()).collect(Collectors.toSet()));
            }
        } catch (Exception e) {
            return annotatedClasses;
        }

        return annotatedClasses;
    }