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CXF的WebService客户端超时了解

2014-04-26 16:17 411 查看

CXF的WebService客户端超时

在使用WebService时,我们通常都会在客户端中设置请求超时的限制,以避免长时间的去连接不可用的服务器。在CXF的环境下,客户端可通过两个属性配置超时限制:

ConnectionTimeout - WebService以TCP连接为基础,这个属性可以理解为TCP握手时的时间设置,超过设置的时间就认为是连接超时.以毫秒为单位,默认是30000毫秒,即30秒。

ReceiveTimeout - 这个属性是发送WebService的请求后等待响应的时间,超过设置的时长就认为是响应超时.以毫秒为单位,默认是60000毫秒,即60秒.

这里可通过两种方式对客户端进行配置:

一、在spring的配置文件中进行设置。

<? xml version = "1.0" encoding = "UTF-8" ?>

< beans xmlns = "http://www.springframework.org/schema/beans"

xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"

xmlns:jee = "http://www.springframework.org/schema/jee"

xmlns:jaxws = "http://cxf.apache.org/jaxws"

xmlns:http-conf = "http://cxf.apache.org/transports/http/configuration"

xsi:schemaLocation ="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.0.xsd
http://cxf.apache.org/jaxws
http://cxf.apache.org/schemas/jaxws.xsd
http://cxf.apache.org/transports/http/configuration http://cxf.apache.org/schemas/configuration/http-conf.xsd " >

< http-conf:conduit name = "{WSDL Namespace}portName.http-conduit" >

< http-conf:client ConnectionTimeout = "10000" ReceiveTimeout = "20000" />

</ http-conf:conduit >

</ beans >

这里需要注意的有几个地方:

1、需要指定http-conf名称空间:xmlns:http-conf=http://cxf.apache.org/transports/http/configuration。

2、指定模式位置: http://cxf.apache.org/transports/http/configuration http://cxf.apache.org/schemas/configuration/http-conf.xsd。

3、http-conf:conduit中的name属性,指定设置生效的服务。name属性由service的namespace、WSDL中的 port name和".http-conduit"组成,如{http://apache.org/hello_world}HelloWorld.http- conduit。如果将name属性设置为“*.http-conduit”,则会对所有服务生效。

二、通过java代码进行设置(对端口有效,即此端口对应的所有WEBSERIVCE服务有效)。

Client client = ClientProxy.getClient(port);

HTTPConduit http = (HTTPConduit) client.getConduit();

HTTPClientPolicy httpClientPolicy = new HTTPClientPolicy();

httpClientPolicy.setConnectionTimeout( 36000 );

httpClientPolicy.setAllowChunking( false );

httpClientPolicy.setReceiveTimeout( 32000 );

http.setClient(httpClientPolicy);

另:也可以对服务器端进行设置spring代码如下: <!-- 在服务器端设置响应超时限制,现在使用的是默认值30秒 -->

<http-conf:destination name="*.http-conduit">

<http-conf:server ReceiveTimeout="30000" />

</http-conf:destination>

★更详细的配置请参考CXF官方文档:

http://cwiki.apache.org/CXF20DOC/client-http-transport-including-ssl-support.html

二、通过java代码进行设置(对单个有效服务有效)

public class CXFClientUtil {

public static final int CXF_CLIENT_CONNECT_TIMEOUT = 3 * 1000;

public static final int CXF_CLIENT_RECEIVE_TIMEOUT = 5 * 1000;

public static void configTimeout(Object service) {

Client proxy = ClientProxy.getClient(service);

HTTPConduit conduit = (HTTPConduit) proxy.getConduit();

HTTPClientPolicy policy = new HTTPClientPolicy();

policy.setConnectionTimeout(CXF_CLIENT_CONNECT_TIMEOUT);

policy.setReceiveTimeout(CXF_CLIENT_RECEIVE_TIMEOUT);

conduit.setClient(policy);

}

}

CXF_CLIENT_CONNECT_TIMEOUT 为与获取服务端连接的超时时间,单位为毫秒

CXF_CLIENT_RECEIVE_TIMEOUT 为获取连接后接收数据的超时时间,单位为毫秒

在“代码片段一”的最后加入 CXFClientUtil.setTimeout(service); 就可以了,完整代码如下:

代码片段二:

JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();

factory.setAddress(SERVICE_ADDRESS);

factory.setServiceClass(DemoService.class);

DemoService service = (DemoService) factory.create();

CXFClientUtil.setTimeout(service);

超时可能出现以下错误

cxf的webservice的Could not send Message

Interceptor for {http://10.66.100.66/SPSFORMES/}IOSpsForMes#{http://10.66.100.66/SPSFORMES/}SetBomNeed has thrown exception, unwinding now

org.apache.cxf.interceptor.Fault: Could not send Message.

at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:64)
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