在spring中获得request对象

Question

各位有一个问题,我想在spring中继承json-rpc然后自定义了bean在启动的时候加载并注册.可是按照网上 http://mazhihui.iteye.com/blog/1662897 的方法总是说java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.当我设置bean的scope之后有无法运行.请问下怎么办.以下是代码:

public class Register{
	@Autowired
	private HttpServletRequest request;
	private String packages[];
	public void init(){
		for(String pack:packages){
			Set<Class<?>> set = ClassUtil.getClasses(pack);
			for(Class<?> clazz:set){
				Annotation[] annotations = clazz.getAnnotations();
				for(int i=0 ;i<annotations.length;i++){
					if(annotations[i].annotationType().getName().equals(RPC.class.getName())){
						RPC rpc = clazz.getAnnotation(RPC.class) ;
						String name = rpc.name() ;
						if("".equals(name)){
							name = ClassUtil.getClassName(clazz) ;
						}
						JsonRpcRegister.registerObject(request, name, clazz) ;
						/*JSONRPCBridge bridge = new JSONRPCBridge();
						bridge.registerObject(name, clazz) ;*/
					}
				}
			}
		}
	}
	public String[] getPackages() {
		return packages;
	}
	public void setPackages(String[] packages) {
		this.packages = packages;
	}
}

<bean class="com.test.rpc.Register" init-method="init" scope="prototype">
		<property name="packages">
			<list>
				<value>com.fiz.enap</value>
			</list>
		</property>
	</bean>

Answer 1

可能你没有把request绑定的提供服务的线程上，要再web.xml中配置以后才可以在Spring中使用，

<listener>

<listener-class>org.springframework.web.context.request.RequestContextListener</listener>

</listener>

或者

<filter>

<filter-class>org.springframework.web.filter.RequestContextFilter</filter-class>

<filter-name>requestContextListener</filter-name>

</filter>

<filter-mapping>

<filter-name>requestContextListener</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

Answer 2

具体你可以看看这篇文章 :http://mazhihui.iteye.com/blog/1662897

Answer 3

request 是http调用时候才有的哦，所以spring mvc 一般都是作为方法的参数传递.

像你这样作为系统启动，都没有请求哪里来的request