HttpExchangeTracer (Spring Boot API)

java.lang.Object
- org.springframework.boot.actuate.trace.http.HttpExchangeTracer

```
public class HttpExchangeTracer
extends Object
```
Traces an HTTP request-response exchange.
从以下版本开始:
2.0.0

构造器概要
构造器
构造器说明
HttpExchangeTracer(Set<Include> includes)
Creates a new HttpExchangeTracer that will use the given includes to determine the contents of its traces.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected void`	`postProcessRequestHeaders(Map<String,List<String>> headers)`	Post-process the given mutable map of request `headers`.
`HttpTrace`	`receivedRequest(TraceableRequest request)`	Begins the tracing of the exchange that was initiated by the given `request` being received.
`void`	`sendingResponse(HttpTrace trace, TraceableResponse response, Supplier<Principal> principal, Supplier<String> sessionId)`	Ends the tracing of the exchange that is being concluded by sending the given `response`.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - HttpExchangeTracer
```
public HttpExchangeTracer(Set<Include> includes)
```
    Creates a new HttpExchangeTracer that will use the given includes to determine the contents of its traces.
    参数:
    includes - the includes
- 方法详细资料
  - receivedRequest
```
public final HttpTrace receivedRequest(TraceableRequest request)
```
    Begins the tracing of the exchange that was initiated by the given request being received.
    参数:
    request - the received request
    返回:
    the HTTP trace for the
  - sendingResponse
```
public final void sendingResponse(HttpTrace trace,
                                  TraceableResponse response,
                                  Supplier<Principal> principal,
                                  Supplier<String> sessionId)
```
    Ends the tracing of the exchange that is being concluded by sending the given response.
    参数:
    trace - the trace for the exchange
    response - the response that concludes the exchange
    principal - a supplier for the exchange's principal
    sessionId - a supplier for the id of the exchange's session
  - postProcessRequestHeaders
```
protected void postProcessRequestHeaders(Map<String,List<String>> headers)
```
    Post-process the given mutable map of request headers.
    参数:
    headers - the headers to post-process