之前想用spring的AOP给webservice添加切面的,但是使用around切面后,居然调用端得不到webservice的返回结果,而且报文的详细情况也不得而知,很是尴尬,所以偷了个懒。但是该做的还是要做,不要以后要求查看调用日志的时候,什么都拿不出,不是一个尴尬能搞定的。
我使用的是基于cxf的webservice,所以添加调用日志的方法也是基于cxf的,其次是配合sping开发webservice。基本的webservice的实现,这里就不再说明。
一、使用LoggingInInterceptor实现
第一种方法,就是使用已经的实现的日志拦截,需要配置好log.properties。
<?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:jaxws="http://cxf.apache.org/jaxws"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd "> <jaxws:endpoint implementor="com.test.DepartServiceImpl" address="/departService">
<jaxws:inInterceptors>
<bean class="org.apache.cxf.interceptor.LoggingInInterceptor" />
</jaxws:inInterceptors>
<jaxws:outInterceptors>
<bean class="org.apache.cxf.interceptor.LoggingOutInterceptor" />
</jaxws:outInterceptors>
</jaxws:endpoint> </beans>
<jaxws:inInterceptors>是输入拦截器,在接口被调用的时候会被拦截。下面是接口被调用后的日志输出。
----------------------------
ID: 1
Address: http://localhost:8080/test/ws/departService?wsdl
Encoding: UTF-8
Http-Method: POST
Content-Type: text/xml; charset=UTF-8
Headers: {Accept=[*/*], cache-control=[no-cache], connection=[keep-alive], Content-Length=[221], content-type=[text/xml; charset=UTF-8], host=[localhost:18080], pragma=[no-cache], SOAPAction=[""], user-agent=[Apache CXF 2.7.7]}
Payload: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><ns2:findEmployees xmlns:ns2="http://cxf.test.com/"><arg0>张三</arg0><arg1></arg1></ns2:findEmployees></soap:Body></soap:Envelope>
--------------------------------------
<jaxws:outInterceptors>是输出拦截器,在接口调用完毕的时候被拦截。下面是接口调用完成后的日志输出。
---------------------------
ID: 1
Encoding: UTF-8
Content-Type: text/xml
Headers: {}
Payload: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><ns2:findEmployeesResponse xmlns:ns2="http://cxf.test.com/"><return><user_depart>IT</user_depart><user_name>张三</user_name><user_state>在职</user_state><user_tele></user_tele><user_type>普通员工</user_type></return></ns2:findEmployeesResponse></soap:Body></soap:Envelope>
--------------------------------------
我们可以看到基本的实现已经非常详细,甚至能看到一些重要基本的信息。如果这个方法还不能满足你的需求,那么请看后面。
二、实现AbstractPhaseInterceptor
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase; import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException; public class WebserviceLogInterceptor extends AbstractPhaseInterceptor<Message> { public WebserviceLogInterceptor(){
super(Phase.RECEIVE);
} @Override
public void handleMessage(Message message) throws Fault {
StringBuffer sb = new StringBuffer();
//这里可以对流做处理,从流中读取数据,然后修改为自己想要的数据
InputStream is = message.getContent(InputStream.class);
String encoding = (String)message.get(Message.ENCODING);
int len = 0;
byte[] bytes = new byte[1024 * 4];
try {
while((len = is.read(bytes))!=-1){
sb.append(new String(bytes, 0, len, encoding));
}
} catch (IOException e) {
e.printStackTrace();
}
System.out.println(sb.toString());
//在这里需要注意一点的是,如果修改后的soap消息格式不符合webservice框架格式,比如:框架封装后的格式为
//<soap:Envelope xmlns:soap="http://www.w3.org/2001/12/soap-envelope" <soap:Body>
//<这里是调用服务端方法的命名空间><这是参数名称>
//这里才是真正的消息
//</这里是调用服务端方法的命名空间></这是参数名称>
//</soap:Body>
//</soap:Envelope>
try {
message.setContent(InputStream.class, new ByteArrayInputStream(sb.toString().getBytes(encoding)));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
}
配置文件添加对应的拦截器。
<jaxws:endpoint implementor="com.test.cxf.impl.DepartServiceImpl" address="/departService">
<jaxws:inInterceptors>
<bean class="org.apache.cxf.interceptor.LoggingInInterceptor" />
<bean class="com.test.interceptor.WebserviceLogInterceptor" />
</jaxws:inInterceptors>
</jaxws:endpoint>
需要注意的是,在处理完数据后,需要在写回到流中,不然接口无法的到参数。
import org.apache.cxf.helpers.IOUtils;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.io.CachedOutputStream;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase; import java.io.*; public class WebserviceLogInterceptor1 extends AbstractPhaseInterceptor<Message> { public WebserviceLogInterceptor1(){
super(Phase.PRE_STREAM);
} @Override
public void handleMessage(Message message) throws Fault {
StringBuffer sb = new StringBuffer();
OutputStream os = message.getContent(OutputStream.class); message.setContent(OutputStream.class, new CachedOutputStream()); message.getInterceptorChain().doIntercept(message); CachedOutputStream csnew = (CachedOutputStream) message.getContent(OutputStream.class);
try {
String encoding = (String)message.get(Message.ENCODING);
InputStream in = csnew.getInputStream(); int len = 0;
byte[] bytes = new byte[1024 * 4];
while((len = in.read(bytes))!=-1) {
sb.append(new String(bytes, 0, len, encoding));
}
System.out.println(sb.toString());
//这里对xml做处理,处理完后同理,写回流中
IOUtils.copy(new ByteArrayInputStream(sb.toString().getBytes(encoding)), os); os.flush(); } catch (IOException e) {
e.printStackTrace();
} message.setContent(OutputStream.class, os);
}
}
同样的,在读取完数据后,仍需要写回到流中,不然调用端得不到结果。