bykgh commented on issue #9267:
URL: https://github.com/apache/dubbo/issues/9267#issuecomment-968548747
> 确认一下providerTraceFilter 所在的类二进制文件是否有被打进去
打进去了， 这个providerTraceFilter，和
META-INF/dubbo/internal/org.apache.dubbo.rpc.filter 文件我是打在一个jar包中，给另外一个spring
boot 的jar项目引用的。
这是providerTraceFilter：
`@Activate(group = {CONSUMER, PROVIDER}, value = VALIDATION_KEY, order =
10000)
public class ProviderTraceFilter extends ValidationFilter {
private Logger logger = LoggerFactory.getLogger(this.getClass());
// 调用过程拦截
@Override
public Result invoke(Invoker<?> invoker, Invocation invocation) throws
RpcException {
try {
//获取session信息
initSession(invocation);
return invoker.invoke(invocation);
}catch (RpcException e) {
throw e;
}finally {
}
}
private void initSession(Invocation invocation) {
String sessionId = invocation.getAttachment("sessionId");
String qrCode = invocation.getAttachment("qrCode");
String openId = invocation.getAttachment("openId");
if (null != sessionId) {
MDC.put("sessionId",sessionId);
}
if (null != qrCode){
MDC.put("qrCode", qrCode);
}
if (null != openId){
MDC.put("openId", openId);
}
}
}`
pom.xml
` <dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>${basedir}/src/main/resources</directory>
<includes>
<include>**/*.filter</include>
</includes>
</resource>
</resources>
</build>`
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