Question

我目前正在开发一个REST Web服务，该服务使用过滤器来处理身份验证（JWT令牌）。筛选器工作正常，但我无法将对象返回资源（该对象包含有关域访问和管理员ID的信息）。环境是在WSO2应用程序服务器版本5.3.0上运行的CXF，Jersey，Jackson（JSON REST）

我一直在使用ContainerRequestContext方法，但是每次尝试访问资源代码中的上下文时，我都会得到一个NullPointerException。我做了一个简单的测试用例Web服务，专门尝试返回对象，但这在资源代码中也得到了NullPointerException。请记住，ContainerRequestContext在过滤器代码中确实有效；我之前通过控制台调试对此进行了测试。

有关我现在正在使用的代码，请参见下文。感谢所有帮助。

ContextTest.java

package test.codehq.fab1.contexttest.cxf3test1;

import java.util.HashMap;
import java.util.Map;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ResourceContext;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

@Path("/")
@Produces("application/json")
public class ContextTest
{
    @Context
    ResourceContext resourceContext;

    ContainerRequestContext containerRequestContext;

    public ContextTest()
    {

    }

    @AuthorizationNeededInterface
    @GET
    @Path("/echos/{echoRequestText}")
    @Produces({MediaType.APPLICATION_JSON})
    public Response echo(@PathParam("echoRequestText") String echoRequestText)
    {
        System.out.println("DEBUG: IN RESOURCE");

        Map<String, String> myResponse = new HashMap<String, String>();

        containerRequestContext = resourceContext.getResource(ContainerRequestContext.class);

        if(containerRequestContext != null)
        {
            if(containerRequestContext.getProperty("AuthID") != null)
            {
                if(((String)containerRequestContext.getProperty("AuthID")).compareTo("1234") == 0)
                {
                    myResponse.put("echo_response", echoRequestText);
                } 
                else myResponse.put("echo_response", "Invalid AuthID <1>");
            } 
            else myResponse.put("echo_response", "Invalid AuthID <2>");
        }
        else myResponse.put("echo_response", "Invalid AuthID <3>");

        GenericEntity<Map<String, String>> genericEntity = new GenericEntity<Map<String, String>>(myResponse){};
        return Response.ok().entity(genericEntity).build();
    }
}

AuthorizationNeededInterface.java

package test.codehq.fab1.contexttest.cxf3test1;

import javax.ws.rs.NameBinding;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

@NameBinding
@Retention(RUNTIME)
@Target({TYPE, METHOD})
public @interface AuthorizationNeededInterface
{

}

AuthorizationNeeded.java

package test.codehq.fab1.contexttest.cxf3test1;

import java.io.IOException;
import javax.ws.rs.ext.Provider;
import javax.annotation.Priority;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.ResourceContext;
import javax.ws.rs.core.Context;

@AuthorizationNeededInterface
@Provider
@Priority(1000)
public class AuthorizationNeeded implements ContainerRequestFilter
{
    @Context
    ResourceContext resourceContext;

    @Override
    public void filter(ContainerRequestContext conRequestContext) throws IOException
    {
        System.out.println("DEBUG: IN FILTER");
        resourceContext.getResource(ContainerRequestContext.class).setProperty("AuthID", "1234");
    }
}

cxf-servlet.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns:cxf="http://cxf.apache.org/core" xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jaxrs="http://cxf.apache.org/jaxrs" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://cxf.apache.org/bindings/soap http://cxf.apache.org/schemas/configuration/soap.xsd http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd">
    <bean  id="ContextTestBean" class="test.codehq.fab1.contexttest.cxf3test1.ContextTest"/>
    <bean id="jsonProvider" class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider"/>
    <bean id="AuthorizationNeededProvider" class="test.codehq.fab1.contexttest.cxf3test1.AuthorizationNeeded"/>

    <jaxrs:server id="cxf3test1Service" address="/cxf3test1">
        <jaxrs:serviceBeans>
            <ref  bean="ContextTestBean"/>
        </jaxrs:serviceBeans>

        <jaxrs:providers>
            <ref bean="jsonProvider" />
            <ref bean="AuthorizationNeededProvider" />
        </jaxrs:providers>

        <jaxrs:features>
            <cxf:logging/>
        </jaxrs:features>
    </jaxrs:server>
</beans>

web.xml

<?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" id="WebApp_ID" version="3.0">
    <display-name>ContextTestCXF3test1</display-name>
    <servlet>
        <description>Apache CXF Endpoint</description>
        <display-name>cxf</display-name>
        <servlet-name>cxf</servlet-name>
        <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>cxf</servlet-name>
        <url-pattern>/services/*</url-pattern>
    </servlet-mapping>

    <session-config>
        <session-timeout>60</session-timeout>
    </session-config>
</web-app>

pom.xml

<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>test.codinghq.fab1</groupId>
  <artifactId>ContextTestCXF3test1</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.2.1</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
        </configuration>
      </plugin>
    </plugins>
  </build>
  <dependencies>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-core</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxrs</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-rs-extension-providers</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-features-logging</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
        <version>2.1</version>
    </dependency>
    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>1</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.jaxrs</groupId>
        <artifactId>jackson-jaxrs-providers</artifactId>
        <version>2.9.7</version>
        <type>pom</type>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.jaxrs</groupId>
        <artifactId>jackson-jaxrs-json-provider</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>javax.annotation</groupId>
        <artifactId>javax.annotation-api</artifactId>
        <version>1.3.2</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.3.21.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>4.3.21.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.3.21.RELEASE</version>
    </dependency>
  </dependencies>
</project>

在对“ echos”资源进行请求时，出现以下异常：

java.lang.RuntimeException: Resource class interface javax.ws.rs.container.ContainerRequestContext has no valid constructor
    org.apache.cxf.jaxrs.lifecycle.PerRequestResourceProvider.<init>(PerRequestResourceProvider.java:57)
    org.apache.cxf.jaxrs.impl.ResourceContextImpl.getResource(ResourceContextImpl.java:50)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:498)
    org.apache.cxf.jaxrs.impl.tl.ThreadLocalInvocationHandler.invoke(ThreadLocalInvocationHandler.java:48)
    com.sun.proxy.$Proxy1694.getResource(Unknown Source)
    test.codehq.fab1.contexttest.cxf3test1.AuthorizationNeeded.filter(AuthorizationNeeded.java:23)
    org.apache.cxf.jaxrs.utils.JAXRSUtils.runContainerRequestFilters(JAXRSUtils.java:1688)

Answer 1

UPDATE 我已经解决了这个问题。这个问题仍然无法解决，因此请记住这一点。我也张贴了有效的CXF和Jersey版本。请参阅下面的版本虚线。我认为在CXF中，ContainerRequestContext在资源类中不可用。我不知道为什么泽西岛使这一切成为可能，但这看起来就像他们实现它的方式一样。我通过查看lefloh的示例How to Pass Object from ContainerRequestFilter to Resource找到了解决方案谢谢lefloh指出了ContainerRequestFilter属性与HttpServletRequest同步的事实。

CXF版本（有效）

ContextTest.java

package test.codehq.fab1.contexttest.cxf3test1;

import java.util.HashMap;
import java.util.Map;

import javax.annotation.ManagedBean;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

@ManagedBean
@Path("/")
@Produces("application/json")
public class ContextTest
{
    // Keep in mind that the ContainerRequestContext
    // attributes are automatically synced with
    // HttpServletRequest. When using CXF the
    // ContainerRequestContext can not be directly
    // accessed in the Resource, so we need to use
    // HttpServletRequest 
    @Context
    HttpServletRequest httpServletRequest;

    public ContextTest()
    {

    }

    @AuthorizationNeededInterface
    @GET
    @Path("/echos/{echoRequestText}")
    @Produces({MediaType.APPLICATION_JSON})
    public Response echo(@PathParam("echoRequestText") String echoRequestText)
    {
        System.out.println("DEBUG: IN RESOURCE");

        Map<String, String> myResponse = new HashMap<String, String>();

        if(httpServletRequest != null)
        {
            if(httpServletRequest.getAttribute("AuthID") != null)
            {
                if(((String)httpServletRequest.getAttribute("AuthID")).compareTo("1234") == 0)
                {
                    myResponse.put("echo_response", echoRequestText);
                } 
                else myResponse.put("echo_response", "Invalid AuthID <1>");
            } 
            else myResponse.put("echo_response", "Invalid AuthID <2>");
        }
        else myResponse.put("echo_response", "Invalid AuthID <3>");

        GenericEntity<Map<String, String>> genericEntity = new GenericEntity<Map<String, String>>(myResponse){};
        return Response.ok().entity(genericEntity).build();
    }
}

AuthorizationNeededInterface.java

package test.codehq.fab1.contexttest.cxf3test1;

import javax.ws.rs.NameBinding;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

@NameBinding
@Retention(RUNTIME)
@Target({TYPE, METHOD})
public @interface AuthorizationNeededInterface
{

}

AuthorizationNeeded.java

package test.codehq.fab1.contexttest.cxf3test1;

import java.io.IOException;

import javax.ws.rs.ext.Provider;
import javax.annotation.Priority;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;

@AuthorizationNeededInterface
@Provider
@Priority(1000)
public class AuthorizationNeeded implements ContainerRequestFilter
{

    public AuthorizationNeeded()
    {

    }

    @Override
    public void filter(ContainerRequestContext conRequestContext) throws IOException
    {
        System.out.println("DEBUG: IN FILTER");

        conRequestContext.setProperty("AuthID", "1234");
    }
}

cxf-servlet.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns:cxf="http://cxf.apache.org/core" xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jaxrs="http://cxf.apache.org/jaxrs" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://cxf.apache.org/bindings/soap http://cxf.apache.org/schemas/configuration/soap.xsd http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd">
    <bean  id="ContextTestBean" class="test.codehq.fab1.contexttest.cxf3test1.ContextTest"/>
    <bean id="jsonProvider" class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider"/>
    <bean id="AuthorizationNeededProvider" class="test.codehq.fab1.contexttest.cxf3test1.AuthorizationNeeded"/>

    <jaxrs:server id="cxf3test1Service" address="/cxf3test1">
        <jaxrs:serviceBeans>
            <ref bean="ContextTestBean"/>
        </jaxrs:serviceBeans>

        <jaxrs:providers>
            <ref bean="ContextTestBean"/>
            <ref bean="jsonProvider" />
            <ref bean="AuthorizationNeededProvider" />
        </jaxrs:providers>
    </jaxrs:server>
</beans>

web.xml

<?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" id="WebApp_ID" version="3.0">
    <display-name>ContextTestCXF3test1</display-name>

    <servlet>
        <description>Apache CXF Endpoint</description>
        <display-name>cxf</display-name>
        <servlet-name>cxf</servlet-name>
        <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>cxf</servlet-name>
        <url-pattern>/services/*</url-pattern>
    </servlet-mapping>

    <session-config>
        <session-timeout>60</session-timeout>
    </session-config>
</web-app>

pom.xml

<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>test.codinghq.fab1</groupId>
  <artifactId>ContextTestCXF3test1</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.2.1</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
        </configuration>
      </plugin>
    </plugins>
  </build>
  <dependencies>
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
        <version>2.1</version>
    </dependency>
    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-bundle-compatible</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-core</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxrs</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-rs-extension-providers</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-features-logging</artifactId>
        <version>3.2.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.jaxrs</groupId>
        <artifactId>jackson-jaxrs-providers</artifactId>
        <version>2.9.7</version>
        <type>pom</type>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.jaxrs</groupId>
        <artifactId>jackson-jaxrs-json-provider</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>javax.annotation</groupId>
        <artifactId>javax.annotation-api</artifactId>
        <version>1.3.2</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.3.21.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>4.3.21.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.3.21.RELEASE</version>
    </dependency>
  </dependencies>
</project>

Jersey版本（有效）

ContextTest.java

package test.codehq.fab1.contexttest.jersey2test1;

import java.util.HashMap;
import java.util.Map;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ResourceContext;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

@Path("/")
@Produces("application/json")
public class ContextTest
{
    @Context
    ResourceContext resourceContext;

    ContainerRequestContext containerRequestContext;

    public ContextTest()
    {

    }

    @AuthorizationNeededInterface
    @GET
    @Path("/echos/{echoRequestText}")
    @Produces({MediaType.APPLICATION_JSON})
    public Response echo(@PathParam("echoRequestText") String echoRequestText)
    {
        System.out.println("DEBUG: IN RESOURCE");

        Map<String, String> myResponse = new HashMap<String, String>();

        containerRequestContext = resourceContext.getResource(ContainerRequestContext.class);

        if(containerRequestContext != null)
        {
            if(containerRequestContext.getProperty("AuthID") != null)
            {
                if(((String)containerRequestContext.getProperty("AuthID")).compareTo("1234") == 0)
                {
                    myResponse.put("echo_response", echoRequestText);
                } 
                else myResponse.put("echo_response", "Invalid AuthID <1>");
            } 
            else myResponse.put("echo_response", "Invalid AuthID <2>");
        }
        else myResponse.put("echo_response", "Invalid AuthID <3>");

        GenericEntity<Map<String, String>> genericEntity = new GenericEntity<Map<String, String>>(myResponse){};
        return Response.ok().entity(genericEntity).build();
    }
}

AuthorizationNeededInterface.java

package test.codehq.fab1.contexttest.jersey2test1;

import javax.ws.rs.NameBinding;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

@NameBinding
@Retention(RUNTIME)
@Target({TYPE, METHOD})
public @interface AuthorizationNeededInterface
{

}

AuthorizationNeeded.java

package test.codehq.fab1.contexttest.jersey2test1;

import java.io.IOException;
import javax.ws.rs.ext.Provider;
import javax.annotation.Priority;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.ResourceContext;
import javax.ws.rs.core.Context;

@AuthorizationNeededInterface
@Provider
@Priority(1000)
public class AuthorizationNeeded implements ContainerRequestFilter
{
    @Context
    ResourceContext resourceContext;

    @Override
    public void filter(ContainerRequestContext conRequestContext) throws IOException
    {
        System.out.println("DEBUG: IN FILTER");
        resourceContext.getResource(ContainerRequestContext.class).setProperty("AuthID", "1234");
    }
}

web.xml

<?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" id="WebApp_ID" version="3.0">
  <display-name>ContextTestJersey2test1</display-name>
  <servlet>
    <description>Jersey Filter test</description>
    <display-name>contexttest-jersey2test1</display-name>
    <servlet-name>contexttest-jersey2test1</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param>
      <param-name>jersey.config.server.provider.packages</param-name>
      <param-value>test.codehq.fab1.contexttest.jersey2test1</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>contexttest-jersey2test1</servlet-name>
    <url-pattern>/rest/*</url-pattern>
  </servlet-mapping>
  <session-config>
    <session-timeout>60</session-timeout>
  </session-config>
</web-app>

pom.xml

<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>test.codinghq.fab1</groupId>
  <artifactId>ContextTestJersey2Test1</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.2.1</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
        </configuration>
      </plugin>
    </plugins>
  </build>
  <dependencies>
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
        <version>2.1</version>
    </dependency>
    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>1</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.jaxrs</groupId>
        <artifactId>jackson-jaxrs-providers</artifactId>
        <version>2.9.7</version>
        <type>pom</type>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>3.0.7.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>3.0.7.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>3.0.7.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.jaxrs</groupId>
        <artifactId>jackson-jaxrs-json-provider</artifactId>
        <version>2.9.7</version>
    </dependency>
    <dependency>
        <groupId>javax.annotation</groupId>
        <artifactId>javax.annotation-api</artifactId>
        <version>1.3.2</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-servlet-core</artifactId>
        <version>2.27</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-json</artifactId>
        <version>2.0-m05-1</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-server</artifactId>
        <version>2.27</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.inject</groupId>
        <artifactId>jersey-hk2</artifactId>
        <version>2.27</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-json-jackson</artifactId>
        <version>2.27</version>
    </dependency>
  </dependencies>
</project>

将对象从过滤器返回到资源

1 个答案: