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将HttpServletRequest注入rest服务

cxf servlets rest java

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Ruslan · 技术社区 · 7 年前

我想通过将HttpServletRequest注入到我的服务中 @Context 下面是我的例子:

@Path("/")
public class MyService {
    @Context
    private HttpServletRequest request;
}

我使用apachecxf实现,下面是pom.xml文件:

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

<dependency>
    <groupId>org.apache.cxf</groupId>
    <artifactId>cxf-rt-frontend-jaxrs</artifactId>
    <version>3.1.7</version>
</dependency>

<dependency>
    <groupId>javax.ws.rs</groupId>
    <artifactId>javax.ws.rs-api</artifactId>
    <version>2.0</version>
</dependency>

<plugin>
    <groupId>org.apache.felix</groupId>
    <artifactId>maven-bundle-plugin</artifactId>
    <version>3.5.0</version>
    <configuration>
        <instructions>
            <Import-Package>
                !*,
                javax.ws.rs,
                javax.ws.rs.core,
                javax.ws.rs.ext,
                org.apache.cxf.jaxrs.impl.tl,
            </Import-Package>
            <Embed-Transitive>true</Embed-Transitive>
        </instructions>
    </configuration>
</plugin>

没有 javax.ws.rs.ext 和 org.apache.cxf.jaxrs.impl.tl 在导入包部分,我得到了以下例外情况之一:

Caused by: java.lang.IllegalArgumentException: interface javax.ws.rs.ext.Providers is not visible from class loader 

Caused by: java.lang.IllegalArgumentException: interface org.apache.cxf.jaxrs.impl.tl.ThreadLocalProxy is not visible from class loader

因此,在尝试部署我的应用程序时出现以下异常:

Caused by: java.lang.IllegalArgumentException: Can not set javax.servlet.http.HttpServletRequest field MyService.request to org.apache.cxf.jaxrs.impl.tl.ThreadLocalHttpServletRequest

但我注意到一件事:

ThreadLocalHttpServletRequest request 而不是 HttpServletRequest request ,那么它毫无例外地工作,但是 request 字段是 null 当我尝试从任何方法使用它的时候。

HttpServletReqest ?

1 回复 | 直到 7 年前

1

0

Bhaskara Arani 7 年前

尝试使用org.apache.cxf.jaxrs.ext.MessageContext文件

import javax.ws.rs.core.Context;
import org.apache.cxf.jaxrs.ext.MessageContext;



// your code goes like this
@Context 
private MessageContext context;



// try to get the request/response/session etc in your methods
HttpServletRequest req = context.getHttpServletRequest();
HttpServletResponse res = context.getHttpServletResponse()