Java 如何在guice模块中注入servlet上下文？

很抱歉问题标题不好
免责声明：对于主要使用dropwizard的web应用没有太多经验

因此，我一直在尝试在java web应用程序中使用guice

我的servlet/resource文件中有servletContext，但我需要将它注入到我的guice模块中，如何在guice模块中注入servlet上下文

参考代码如下，任何帮助都将不胜感激

缓存服务

public interface CacheService {
    public abstract String hello();
}

public class CacheModule implements Module{

    public void configure(final Binder binder) {
        binder.bind(ResourceServlet.class);
        binder.bind(CacheService.class).to(CacheServiceImpl.class);
    }
}

CacheServiceImpl

public class CacheServiceImpl implements CacheService {
JedisPool jedisPool = null;

@Context
private ServletContext servletContext;

@Provides
public String hello() {
    log.info("CacheServiceImpl servletContext {}", servletContext); //  this is null
    return "hello world";
}


@Provides
public Jedis getJedisConnection() {
    HostAndPort redisServer = HostAndPortUtil.getRedisServers().get(0);
    if (jedisPool == null)
        jedisPool = new JedisPool(getJedisPoolConfig(), redisServer.getHost(),
                redisServer.getPort(), Protocol.DEFAULT_TIMEOUT,
                servletContext.getInitParameter("REDIS_PSWD")); // sample example of servletContext requirement, there are other functions in this module which need context 
    return jedisPool.getResource();
}

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
     id="WebApp_ID" version="3.1">
<welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
</welcome-file-list>

<context-param>
    <param-name>resteasy.guice.modules</param-name>
    <param-value>com.org.app.guice.CacheModule</param-value>
</context-param>

<listener>
    <listener-class>
        org.jboss.resteasy.plugins.guice.GuiceResteasyBootstrapServletContextListener
    </listener-class>
</listener>

<servlet>
    <servlet-name>Resteasy</servlet-name>
    <servlet-class>
        org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher
    </servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>Resteasy</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>

}

缓存模块

public interface CacheService {
    public abstract String hello();
}

public class CacheModule implements Module{

    public void configure(final Binder binder) {
        binder.bind(ResourceServlet.class);
        binder.bind(CacheService.class).to(CacheServiceImpl.class);
    }
}

ResourceServlet

@Slf4j
@Path("/")
@Singleton
public class ResourceServlet {

    @Context
    private ServletContext servletContext;

    @Inject
    public ResourceServlet(CacheService storageModule) throws JAXBException {
          log.info("base {}", storageModule.hello());
    }

    @GET
    @Path("/test")
    @Produces({MediaType.APPLICATION_JSON})
    public Product abc() {
        log.info("servletContext {}", servletContext); // this is not null but how do i pass it on to module?
        
    }
}

web.xml

public class CacheServiceImpl implements CacheService {
JedisPool jedisPool = null;

@Context
private ServletContext servletContext;

@Provides
public String hello() {
    log.info("CacheServiceImpl servletContext {}", servletContext); //  this is null
    return "hello world";
}


@Provides
public Jedis getJedisConnection() {
    HostAndPort redisServer = HostAndPortUtil.getRedisServers().get(0);
    if (jedisPool == null)
        jedisPool = new JedisPool(getJedisPoolConfig(), redisServer.getHost(),
                redisServer.getPort(), Protocol.DEFAULT_TIMEOUT,
                servletContext.getInitParameter("REDIS_PSWD")); // sample example of servletContext requirement, there are other functions in this module which need context 
    return jedisPool.getResource();
}

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
     id="WebApp_ID" version="3.1">
<welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
</welcome-file-list>

<context-param>
    <param-name>resteasy.guice.modules</param-name>
    <param-value>com.org.app.guice.CacheModule</param-value>
</context-param>

<listener>
    <listener-class>
        org.jboss.resteasy.plugins.guice.GuiceResteasyBootstrapServletContextListener
    </listener-class>
</listener>

<servlet>
    <servlet-name>Resteasy</servlet-name>
    <servlet-class>
        org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher
    </servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>Resteasy</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>

index.html
index.htm
index.jsp
default.html
default.htm
default.jsp
resteasy.guice.modules
com.org.app.guice.CacheModule
org.jboss.resteasy.plugins.guice.GuiceResteasyBootstrapServletContextListener
放松
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher
放松
/*

ServletContext

有点不同，您需要自己注入实现-您需要扩展

guicerestasybootstrapservletcontextlistener

并将其添加到模块

新的CacheModuleImpl（context）

中。请看最后一节

ServletContext

有点不同，您需要自己注入实现-您需要扩展

GuiceResteasyBootstrapServletContextListener

并将其添加到您的模块

新的CacheModuleImpl（context）

中。请看最后一节