Question

我的spring + jsf配置有问题。我使用WebApplicationInitializer加载ContextLoaderListener和RequestContextListener。

public class Initializer implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {

        AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
        ctx.register(WebAppConfig.class);

        servletContext.addListener(new ContextLoaderListener(ctx));
        servletContext.addListener(new RequestContextListener());
    }
}

WebAppConfig类：

@Configuration
@ComponentScan({"web.beans","web.config","web.services"})
public class WebAppConfig { 
}

在我的faces-config.xml中，我有：

<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>

我的web.xml很标准：

    <?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    version="3.0">
    <display-name>SpringWeb</display-name>

    <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>

    <context-param>
        <description>State saving method: 'client' or 'server' (=default). See JSF   Specification 2.5.2</description>
        <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
        <param-value>client</param-value>
    </context-param>

    <session-config>
        <session-timeout>10</session-timeout>
    </session-config>

    <welcome-file-list>
        <welcome-file>index.xhtml</welcome-file>
    </welcome-file-list>
</web-app>

我的pom：

<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>web</groupId>
<artifactId>SpringWeb</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <jsf.version>2.1.3</jsf.version>
    <spring.version>3.2.5.RELEASE</spring.version>
</properties>

<dependencies>

    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.9</version>
    </dependency>

    <!-- Spring implementation -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <!-- CGLIB is required to process @Configuration classes -->
    <dependency>
        <groupId>cglib</groupId>
        <artifactId>cglib</artifactId>
        <version>2.2.2</version>
    </dependency>

    <!-- Jsf -->
    <dependency>
        <groupId>com.sun.faces</groupId>
        <artifactId>jsf-api</artifactId>
        <version>${jsf.version}</version>
    </dependency>
    <dependency>
        <groupId>com.sun.faces</groupId>
        <artifactId>jsf-impl</artifactId>
        <version>${jsf.version}</version>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
    </dependency>

    <dependency>
      <groupId>org.glassfish.web</groupId>
      <artifactId>el-impl</artifactId>
      <version>2.2</version>
    </dependency>

    <dependency>
        <groupId>org.primefaces</groupId>
        <artifactId>primefaces</artifactId>
        <version>4.0</version>
    </dependency>

</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>
    </plugins>
</build>

我在Tomcat 7上运行应用程序，这是我的堆栈跟踪：

java.lang.IllegalStateException: No WebApplicationContext found: no ContextLoaderListener registered?
org.springframework.web.jsf.FacesContextUtils.getRequiredWebApplicationContext(FacesContextUtils.java:83)
org.springframework.web.jsf.el.SpringBeanFacesELResolver.getWebApplicationContext(SpringBeanFacesELResolver.java:91)
org.springframework.web.jsf.el.SpringBeanFacesELResolver.getBeanFactory(SpringBeanFacesELResolver.java:79)
org.springframework.beans.factory.access.el.SpringBeanELResolver.getValue(SpringBeanELResolver.java:50)
com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:72)
org.apache.el.parser.AstValue.getValue(AstValue.java:161)

从我在春季文档中收集的内容来看，WebApplicationInitializer和web.xml（3.0）是互补的，所以我无法弄清楚出了什么问题......

提前大事

更新：在第一次部署时，我得到错误，第二次部署应用程序启动

Answer 1

您的maven配置将2个依赖项指定为编译（默认值），而它们应指定为提供。至少servlet-api的范围应为提供

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
</dependency>

将warlet-api添加到war文件中的问题是它（可能）会导致类加载问题。同一个类在2个不同的类加载器中可用，因此来自CL1的ServletContainerInitializer与来自CL2的ServletContainerInitializer不同（类标识基于类名+类加载器）。

这导致无法检测到负责加载SpringServletContainerInitializer实现的WebApplicationInitializer。

没有找到WebApplicationContext？

1 个答案: