Atu*_*tul 7 spring jsf-2 jsf-2.2 spring-boot
环境 :
雄猫8
Spring Boot 1.5
JSF 2.2
Apache MyFaces
Spring MVC
代码:
我在Servlet 3.0环境中集成了Spring Boot和JSF 2.2.
配置类:
JSFConfig.java - JSF的配置.
@Configuration
@ComponentScan({"com.atul.jsf"})
public class JSFConfig {
@Bean
public ServletRegistrationBean servletRegistrationBean() {
FacesServlet servlet = new FacesServlet();
return new ServletRegistrationBean(servlet, "*.jsf");
}
}
Spring Boot主类:
@SpringBootApplication
@Import({ // @formatter:off
JPAConfig.class,
ServiceConfig.class, // this contains UserServiceImpl.java class.
WebConfig.class,
JSFConfig.class,
})
public class SpringbootJpaApplication extends SpringBootServletInitializer{
public static void main(String[] args) {
SpringApplication.run(SpringbootJpaApplication.class, args);
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(SpringbootJpaApplication.class);
}
}
托管Bean:
UserBean.java - JSF的托管Bean
@ManagedBean
@SessionScoped
public class UserBean implements Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
@ManagedProperty(value="#{userServiceImpl}")
private UserServiceImpl userServiceImpl;
public void addUser(){
System.out.println("User Gets added "+this.name);
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public UserServiceImpl getUserServiceImpl() {
return userServiceImpl;
}
public void setUserServiceImpl(UserServiceImpl userServiceImpl) {
this.userServiceImpl = userServiceImpl;
}
}
小面孔:
home.xhtml - 主页
<?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:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<title>JSF 2.0 Hello World</title>
</h:head>
<h:body>
<h2>JSF 2.0 Hello World Example - hello.xhtml</h2>
<h:form>
<h:inputText value="#{userBean.name}"></h:inputText>
<h:commandButton value="Submit" action="#{userBean.addUser}"></h:commandButton>
</h:form>
</h:body>
</html>
faces-config.xml:
<?xml version="1.0" encoding="UTF-8"?>
<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/web-facesconfig_2_2.xsd"
version="2.2">
<application>
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
</application>
<lifecycle>
<phase-listener>org.springframework.web.jsf.DelegatingPhaseListenerMulticaster</phase-listener>
</lifecycle>
</faces-config>
问题 :
1)当我提交表格home.xhtml , userBean.addUser时被叫.2)userBean.name使用用户输入的值进行设置.3)但是userServiceImpl是NULL.4)这是否意味着Spring和JSF没有集成？我也注册SpringBeanFacesELResolver了如上所述
faces-config.xml
我还尝试从UserBean.java中删除所有JSF特定的注释,并仅使用如下的Spring特定注释 -
@Component
@SessionScoped
public class UserBean implements Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
@Autowired
private UserServiceImpl userServiceImpl;
}
但是当我提交表单时,我收到了目标无法访问的错误#{userBean).这意味着userBeanSpring无法发现
我在这里错过了什么吗？6)我没有使用Spring Boot提供的嵌入式tomcat
这就是我让JSF与Spring Boot一起工作的方式（Github上的完整示例项目，已由JSF 2.3和Spring Boot 2更新）：
1.依存关系
除了标准的Web Starter依赖项之外，您还需要包括标记为提供的tomcat嵌入式jasper（感谢@Fencer在此处发表评论）。否则，由于JSF取决于JSP处理器，您将在应用程序启动时遇到异常（另请参见我答案末尾的第一个链接）。
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
2. Servlet注册
注册JSF Servlet并将其配置为在启动时加载（不需要web.xml）。如果使用JSF 2.2，则最好是*.xhtml至少在使用facelet时使用映射：
@Bean
public ServletRegistrationBean servletRegistrationBean() {
ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(
new FacesServlet(), "*.xhtml");
servletRegistrationBean.setLoadOnStartup(1);
return servletRegistrationBean;
}
使您的配置类实现，ServletContextAware以便您可以设置init参数。在这里，您必须强制JSF加载配置：
@Override
public void setServletContext(ServletContext servletContext) {
servletContext.setInitParameter("com.sun.faces.forceLoadConfiguration",
Boolean.TRUE.toString());
servletContext.setInitParameter("javax.faces.FACELETS_SKIP_COMMENTS", "true");
//More parameters...
}
3. EL集成
在faces-config.xml中声明EL解析器。这将成为视图文件与托管Bean属性和方法之间的粘合剂：
<?xml version="1.0" encoding="UTF-8"?>
<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/web-facesconfig_2_2.xsd"
version="2.2">
<application>
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver
</el-resolver>
</application>
</faces-config>
4.视图范围
编写一个自定义Spring范围来模拟JSF视图范围（请注意，您的bean将由Spring而不是JSF管理）。它看起来应该像这样：
public class ViewScope implements Scope {
@Override
public Object get(String name, ObjectFactory<?> objectFactory) {
Map<String, Object> viewMap = FacesContext.getCurrentInstance()
.getViewRoot().getViewMap();
if (viewMap.containsKey(name)) {
return viewMap.get(name);
} else {
Object object = objectFactory.getObject();
viewMap.put(name, object);
return object;
}
}
@Override
public String getConversationId() {
return null;
}
@Override
public void registerDestructionCallback(String name, Runnable callback) {
}
@Override
public Object remove(String name) {
return FacesContext.getCurrentInstance().getViewRoot().getViewMap().remove(name);
}
@Override
public Object resolveContextualObject(String arg0) {
return null;
}
}
并将其注册到您的配置类中：
@Bean
public static CustomScopeConfigurer viewScope() {
CustomScopeConfigurer configurer = new CustomScopeConfigurer();
configurer.setScopes(
new ImmutableMap.Builder<String, Object>().put("view", new ViewScope()).build());
return configurer;
}
5.准备出发！
现在，您可以按照以下方式声明托管bean。记住要使用@Autowired（最好在构造函数中）代替@ManagedProperty，因为您正在处理Spring Beans。
@Component
@Scope("view")
public class MyBean {
//Ready to go!
}
仍有待实现
我无法在Spring Boot上下文中使用JSF特定的注释。所以@FacesValidator，@FacesConverter，@FacesComponent，等不能使用。仍然有机会在faces-config.xml中声明它们（请参见xsd），这是一种老式的方法。
也可以看看：
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