diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index b62b0884..3b1ef573 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -93,6 +93,11 @@ qt_add_qml_module(example
     RESOURCES ${resource_files}
 )
 
+#导入component头文件,不然通过QML_NAMED_ELEMENT生成的c++类会找不到头文件报错
+target_include_directories(example PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/component
+)
+
 #设置属性
 set_target_properties(example PROPERTIES
     MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
diff --git a/example/qml/page/T_Http.qml b/example/qml/page/T_Http.qml
index 1b0eda03..07804936 100644
--- a/example/qml/page/T_Http.qml
+++ b/example/qml/page/T_Http.qml
@@ -11,6 +11,9 @@ FluScrollablePage{
 
     title:"Http"
 
+    Component.onDestruction: {
+        console.debug("T_Http -> onDestruction")
+    }
 
     FluHttp{
         id:http_get
@@ -66,6 +69,7 @@ FluScrollablePage{
         onDownloadProgress:
             (recv,total)=>{
                 var precent = (recv/total * 100).toFixed(0) + "%"
+                console.debug(precent)
                 btn_download.text = "下载中..."+precent
             }
         onError:
diff --git a/example/src/component/CircularReveal.h b/example/src/component/CircularReveal.h
index 675dc73f..5084b165 100644
--- a/example/src/component/CircularReveal.h
+++ b/example/src/component/CircularReveal.h
@@ -12,6 +12,7 @@ class CircularReveal : public QQuickPaintedItem
     Q_OBJECT
     Q_PROPERTY_AUTO(QQuickItem*,target)
     Q_PROPERTY_AUTO(int,radius)
+    QML_NAMED_ELEMENT(CircularReveal)
 public:
     CircularReveal(QQuickItem* parent = nullptr);
     void paint(QPainter* painter) override;
diff --git a/example/src/component/FileWatcher.h b/example/src/component/FileWatcher.h
index 84919492..5db1df83 100644
--- a/example/src/component/FileWatcher.h
+++ b/example/src/component/FileWatcher.h
@@ -3,12 +3,14 @@
 
 #include <QObject>
 #include <QFileSystemWatcher>
+#include <QtQml/qqml.h>
 #include "src/stdafx.h"
 
 class FileWatcher : public QObject
 {
     Q_OBJECT
     Q_PROPERTY_AUTO(QString,path);
+    QML_NAMED_ELEMENT(FileWatcher)
 public:
     explicit FileWatcher(QObject *parent = nullptr);
     Q_SIGNAL void fileChanged();
diff --git a/example/src/main.cpp b/example/src/main.cpp
index 1d51ae86..2d559034 100644
--- a/example/src/main.cpp
+++ b/example/src/main.cpp
@@ -8,8 +8,6 @@
 #include <QProcess>
 #include <FramelessHelper/Quick/framelessquickmodule.h>
 #include <FramelessHelper/Core/private/framelessconfig_p.h>
-#include "src/component/CircularReveal.h"
-#include "src/component/FileWatcher.h"
 #include "AppInfo.h"
 
 FRAMELESSHELPER_USE_NAMESPACE
@@ -39,8 +37,6 @@ FRAMELESSHELPER_USE_NAMESPACE
 #ifdef FLUENTUI_BUILD_STATIC_LIB
     engine.addImportPath("qrc:/"); // 让静态资源可以被QML引擎搜索到
 #endif
-    qmlRegisterType<CircularReveal>("example", 1, 0, "CircularReveal");
-    qmlRegisterType<FileWatcher>("example", 1, 0, "FileWatcher");
     appInfo->init(&engine);
     const QUrl url(QStringLiteral("qrc:/example/qml/App.qml"));
     QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
diff --git a/src/FluHttp.cpp b/src/FluHttp.cpp
index be38e259..00c70a98 100644
--- a/src/FluHttp.cpp
+++ b/src/FluHttp.cpp
@@ -12,13 +12,32 @@ FluHttp::FluHttp(QObject *parent)
     enabledBreakpointDownload(false);
     timeout(15);
     retry(3);
+
 }
 
-Q_INVOKABLE void FluHttp::postString(QString params,QVariantMap headers){
+FluHttp::~FluHttp(){
+    cancel();
+}
+
+void FluHttp::cancel(){
+    foreach (auto item, cache) {
+        if(item){
+            qDebug()<<item;
+            item->abort();
+        }
+    }
+}
+
+void FluHttp::handleReply(QNetworkReply* reply){
+    cache.append(reply);
+}
+
+void FluHttp::postString(QString params,QVariantMap headers){
     QVariantMap request = invokeIntercept(params,headers,"postString").toMap();
     QThreadPool::globalInstance()->start([=](){
-        HttpClient client;
         Q_EMIT start();
+        HttpClient client;
+        client.initReplyCompleted = [=](QNetworkReply* reply){ handleReply(reply); };
         client.post(_url)
             .retry(retry())
             .timeout(timeout())
@@ -26,22 +45,22 @@ Q_INVOKABLE void FluHttp::postString(QString params,QVariantMap headers){
             .headers(request["headers"].toMap())
             .onSuccess([=](QString result) {
                 Q_EMIT success(result);
-                Q_EMIT finish();
             })
             .onFailed([=](QNetworkReply* reply) {
                 Q_EMIT error(reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt(),reply->errorString());
-                Q_EMIT finish();
             })
             .block()
             .exec();
+        Q_EMIT finish();
     });
 }
 
 void FluHttp::post(QVariantMap params,QVariantMap headers){
     QVariantMap request = invokeIntercept(params,headers,"post").toMap();
     QThreadPool::globalInstance()->start([=](){
-        HttpClient client;
         Q_EMIT start();
+        HttpClient client;
+        client.initReplyCompleted = [=](QNetworkReply* reply){ handleReply(reply); };
         client.post(_url)
             .retry(retry())
             .timeout(timeout())
@@ -50,22 +69,22 @@ void FluHttp::post(QVariantMap params,QVariantMap headers){
             .headers(request["headers"].toMap())
             .onSuccess([=](QString result) {
                 Q_EMIT success(result);
-                Q_EMIT finish();
             })
             .onFailed([=](QNetworkReply* reply) {
                 Q_EMIT error(reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt(),reply->errorString());
-                Q_EMIT finish();
             })
             .block()
             .exec();
+        Q_EMIT finish();
     });
 }
 
 void FluHttp::postJson(QVariantMap params,QVariantMap headers){
     QVariantMap request = invokeIntercept(params,headers,"postJson").toMap();
     QThreadPool::globalInstance()->start([=](){
-        HttpClient client;
         Q_EMIT start();
+        HttpClient client;
+        client.initReplyCompleted = [=](QNetworkReply* reply){ handleReply(reply); };
         client.post(_url)
             .retry(retry())
             .timeout(timeout())
@@ -74,22 +93,22 @@ void FluHttp::postJson(QVariantMap params,QVariantMap headers){
             .headers(request["headers"].toMap())
             .onSuccess([=](QString result) {
                 Q_EMIT success(result);
-                Q_EMIT finish();
             })
             .onFailed([=](QNetworkReply* reply) {
                 Q_EMIT error(reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt(),reply->errorString());
-                Q_EMIT finish();
             })
             .block()
             .exec();
+        Q_EMIT finish();
     });
 }
 
 void FluHttp::get(QVariantMap params,QVariantMap headers){
     QVariantMap request = invokeIntercept(params,headers,"get").toMap();
     QThreadPool::globalInstance()->start([=](){
-        HttpClient client;
         Q_EMIT start();
+        HttpClient client;
+        client.initReplyCompleted = [=](QNetworkReply* reply){ handleReply(reply); };
         client.get(_url)
             .retry(retry())
             .timeout(timeout())
@@ -97,22 +116,23 @@ void FluHttp::get(QVariantMap params,QVariantMap headers){
             .headers(request["headers"].toMap())
             .onSuccess([=](QString result) {
                 Q_EMIT success(result);
-                Q_EMIT finish();
             })
             .onFailed([=](QNetworkReply* reply) {
                 Q_EMIT error(reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt(),reply->errorString());
-                Q_EMIT finish();
             })
             .block()
             .exec();
+        Q_EMIT finish();
     });
 }
 
-Q_INVOKABLE void FluHttp::download(QString path,QVariantMap params,QVariantMap headers){
+void FluHttp::download(QString path,QVariantMap params,QVariantMap headers){
+    QPointer<FluHttp> weakThis(this);
     QVariantMap request = invokeIntercept(params,headers,"download").toMap();
     QThreadPool::globalInstance()->start([=](){
-        HttpClient client;
         Q_EMIT start();
+        HttpClient client;
+        client.initReplyCompleted = [=](QNetworkReply* reply){ handleReply(reply); };
         client.get(_url)
             .retry(retry())
             .timeout(timeout())
@@ -121,18 +141,20 @@ Q_INVOKABLE void FluHttp::download(QString path,QVariantMap params,QVariantMap h
             .queryParams(request["params"].toMap())
             .headers(request["headers"].toMap())
             .onDownloadProgress([=](qint64 recv, qint64 total) {
-                Q_EMIT downloadProgress(recv,total);
+                if (!weakThis) {
+                    return;
+                }
+                Q_EMIT weakThis->downloadProgress(recv,total);
             })
             .onDownloadFileSuccess([=](QString result) {
                 Q_EMIT success(result);
-                Q_EMIT finish();
             })
             .onDownloadFileFailed([=](QString errorString) {
                 Q_EMIT error(-1,errorString);
-                Q_EMIT finish();
             })
             .block()
             .exec();
+        Q_EMIT finish();
     });
 }
 
diff --git a/src/FluHttp.h b/src/FluHttp.h
index a1141e69..dc774f80 100644
--- a/src/FluHttp.h
+++ b/src/FluHttp.h
@@ -16,8 +16,11 @@ class FluHttp : public QObject
     QML_NAMED_ELEMENT(FluHttp)
 private:
     QVariant invokeIntercept(const QVariant& params,const QVariant& headers,const QString& method);
+    void handleReply(QNetworkReply* reply);
+    QList<QNetworkReply*> cache;
 public:
     explicit FluHttp(QObject *parent = nullptr);
+    ~FluHttp();
     Q_SIGNAL void start();
     Q_SIGNAL void finish();
     Q_SIGNAL void error(int status,QString errorString);
@@ -27,8 +30,8 @@ public:
     Q_INVOKABLE void post(QVariantMap params = {},QVariantMap headers = {});
     Q_INVOKABLE void postJson(QVariantMap params = {},QVariantMap headers = {});
     Q_INVOKABLE void postString(QString params = "",QVariantMap headers = {});
-
     Q_INVOKABLE void download(QString path,QVariantMap params = {},QVariantMap headers = {});
+    Q_INVOKABLE void cancel();
 };
 
 #endif // FLUHTTP_H
diff --git a/src/HttpClient.h b/src/HttpClient.h
index 6e33122c..cc16ef56 100644
--- a/src/HttpClient.h
+++ b/src/HttpClient.h
@@ -51,6 +51,9 @@ class HttpClient : public QNetworkAccessManager
     Q_OBJECT
 public:
     inline static HttpClient* instance();
+    ~HttpClient(){
+        qDebug()<<"HttpClient析构了";
+    }
     inline HttpClient(QObject* parent = nullptr);
     inline QString getVersion() const;
 
@@ -61,20 +64,7 @@ public:
 
     inline HttpRequest send(const QString& url, Operation op = GetOperation);
 
-    HttpClient* timeout(const int& second = 60)
-    {
-        timeoutSecond = second;
-        return this;
-    }
-    int timeoutSecond = 60;
-
-    HttpClient* header(const QString& key, const QVariant& value)
-    {
-        globalHeader.insert(key, value);
-        return this;
-    }
-    QMap<QString, QVariant> globalHeader;
-
+    std::function<void(QNetworkReply*)> initReplyCompleted;
 private:
 #if (QT_VERSION < QT_VERSION_CHECK(5, 8, 0))
     inline QNetworkReply* sendCustomRequest(const QNetworkRequest& request, const QByteArray& verb,
@@ -1347,9 +1337,10 @@ HttpResponse* HttpRequest::exec(const HttpRequest& _httpRequest, HttpResponse* h
     {
         httpRequest.m_reply->setReadBufferSize(httpRequest.m_readBufferSize);
     }
-
     printDebug(httpRequest.m_logLevel, toString().toStdString().c_str());
-
+    if(httpClient->initReplyCompleted){
+        httpClient->initReplyCompleted(httpRequest.m_reply);
+    }
     if (httpResponse)
     {
         httpResponse->setParent(httpRequest.m_reply);
@@ -1564,27 +1555,27 @@ QString HttpClient::getVersion() const
 
 HttpRequest HttpClient::head(const QString& url)
 {
-    return HttpRequest(QNetworkAccessManager::HeadOperation, this).headers(globalHeader).url(url).timeout(timeoutSecond);
+    return HttpRequest(QNetworkAccessManager::HeadOperation, this).url(url);
 }
 
 HttpRequest HttpClient::get(const QString& url)
 {
-    return HttpRequest(QNetworkAccessManager::GetOperation, this).headers(globalHeader).url(url).timeout(timeoutSecond);
+    return HttpRequest(QNetworkAccessManager::GetOperation, this).url(url);
 }
 
 HttpRequest HttpClient::post(const QString& url)
 {
-    return HttpRequest(QNetworkAccessManager::PostOperation, this).headers(globalHeader).url(url).timeout(timeoutSecond);
+    return HttpRequest(QNetworkAccessManager::PostOperation, this).url(url);
 }
 
 HttpRequest HttpClient::put(const QString& url)
 {
-    return HttpRequest(QNetworkAccessManager::PutOperation, this).headers(globalHeader).url(url).timeout(timeoutSecond);
+    return HttpRequest(QNetworkAccessManager::PutOperation, this).url(url);
 }
 
 HttpRequest HttpClient::send(const QString& url, QNetworkAccessManager::Operation op)
 {
-    return HttpRequest(op, this).headers(globalHeader).url(url).timeout(timeoutSecond);
+    return HttpRequest(op, this).url(url);
 }
 
 #if (QT_VERSION < QT_VERSION_CHECK(5, 8, 0))
@@ -1791,12 +1782,10 @@ void HttpResponse::setHttpRequest(const HttpRequest& httpRequest)
             }
         }
     }
-
     if (reply && httpRequest.m_isBlock)
     {
         new HttpBlocker(reply, httpRequest.m_isBlock);
     }
-
     HttpRequest oldRequest = m_httpRequest;
     m_httpRequest = httpRequest;