响应后Spring Integration tcp连接如何紧密

Question

我写了一个带有0字节终止符的tcp服务器。 该安装程序可以双向使用，但是服务器在发送响应后不会关闭连接：

设置：

<int-ip:tcp-connection-factory id="MyServerConnectionFactory"
                           type="server"
                           port="8083"
                           serializer="MyConnectionSerializeDeserialize"
                           deserializer="MyConnectionSerializeDeserialize"
                           />
<bean id="MyConnectionSerializeDeserialize"     class="org.springframework.integration.ip.tcp.serializer.ByteArraySingleTerminatorSerializer">
        <constructor-arg type="byte" value="0" />
        <property name="maxMessageSize" value="100000"/>
</bean>


<int-ip:tcp-inbound-gateway id="MyGateway"
                        connection-factory="MyServerConnectionFactory"
                        request-channel="MyIncomingServerChannel"
                        error-channel="errorChannel"/>

<int:channel id="MyIncomingServerChannel"/>

<int:service-activator input-channel="MyIncomingServerChannel"
                   ref="MyService"
                   method="process"/>

<bean id="MyService"
  class="mypackage.MyService"/>

MyService中的代码：

   public byte[] process(byte[] input) {
        ByteArrayInputStream stream = new ByteArrayInputStream(input);
        // process the stream
    ByteArrayOutputStream outstream = new ByteArrayOutputStream();
    PrintWriter pw = new PrintWriter(outstream);
    pw.print("Ok");
    pw.flush();
    return outstream.toByteArray();
}

在发送回响应后，如何告诉框架关闭连接？

感谢

Answer 1

客户端通常有责任在收到响应后关闭套接字，但是如果在连接工厂上设置了07-04 19:45:48.009 28227-28227/com.example.dell.foodapplication E/HAL: PATH3 /odm/lib64/hw/gralloc.qcom.so PATH2 /vendor/lib64/hw/gralloc.qcom.so PATH1 /system/lib64/hw/gralloc.qcom.so PATH3 /odm/lib64/hw/gralloc.msm8953.so PATH2 /vendor/lib64/hw/gralloc.msm8953.so PATH1 /system/lib64/hw/gralloc.msm8953.so 07-04 19:45:52.731 28227-28227/com.example.dell.foodapplication E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.dell.foodapplication, PID: 28227 java.lang.OutOfMemoryError: Failed to allocate a 298598412 byte allocation with 14026592 free bytes and 171MB until OOM at dalvik.system.VMRuntime.newNonMovableArray(Native Method) at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:624) at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:457) at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1152) at android.content.res.ResourcesImpl.createFromResourceStream(ResourcesImpl.java:1272) at android.content.res.ResourcesImpl.loadDrawableForCookie(ResourcesImpl.java:743) at android.content.res.ResourcesImpl.loadDrawable(ResourcesImpl.java:585) at android.content.res.MiuiResourcesImpl.loadDrawable(MiuiResourcesImpl.java:308) at android.content.res.Resources.loadDrawable(Resources.java:872) at android.content.res.TypedArray.getDrawable(TypedArray.java:930) at android.widget.ImageView.<init>(ImageView.java:157) at android.widget.ImageView.<init>(ImageView.java:145) at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:72) at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:68) at android.support.v7.app.AppCompatViewInflater.createImageView(AppCompatViewInflater.java:182) at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:106) at android.support.v7.app.AppCompatDelegateImpl.createView(AppCompatDelegateImpl.java:1263) at android.support.v7.app.AppCompatDelegateImpl.onCreateView(AppCompatDelegateImpl.java:1313) at android.view.LayoutInflater$FactoryMerger.onCreateView(LayoutInflater.java:192) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:794) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:752) at android.view.LayoutInflater.rInflate(LayoutInflater.java:883) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:846) at android.view.LayoutInflater.rInflate(LayoutInflater.java:886) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:846) at android.view.LayoutInflater.rInflate(LayoutInflater.java:886) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:846) at android.view.LayoutInflater.parseInclude(LayoutInflater.java:1019) at android.view.LayoutInflater.rInflate(LayoutInflater.java:879) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:846) at android.view.LayoutInflater.rInflate(LayoutInflater.java:886) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:846) at android.view.LayoutInflater.rInflate(LayoutInflater.java:886) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:846) at android.view.LayoutInflater.rInflate(LayoutInflater.java:886) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:846) at android.view.LayoutInflater.inflate(LayoutInflater.java:522) at android.view.LayoutInflater.inflate(LayoutInflater.java:430) at com.example.dell.foodapplication.SelectFragment.onCreateView(SelectFragment.java:38) at android.support.v4.app.Fragment.performCreateView(Fragment.java:2425) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1460) at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1784) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1852) at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:802) at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2623) at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2410) at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2365) at android.support.v4.app.FragmentManagerImpl.execSingleAction(FragmentManager.java:2242) at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:654) at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:146) at android.support.v4.view.ViewPager.populate(ViewPager.java:1244) at android.support.v4.view.ViewPager.populate(ViewPager.java:1092) at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1622) at android.view.View.measure(View.java:19759) at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461) at android.view.View.measure(View.java:19759) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143) at android.view.View.measure(View.java:19759) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464) at android.widget.LinearLayout.measureVertical(LinearLayout.java:758) at android.widget.LinearLayout.onMeasure(LinearLayout.java:640) at android.view.View.measure(View.java:19759) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at android.view.View.measure(View.java:19759) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464) at android.widget.LinearLayout.measureVertical(LinearLayout.java:758) at android.widget.LinearLayout.onMeasure(LinearLayout.java:640) at android.view.View.measure(View.java:19759) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6122) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at com.android.internal.policy.DecorView.onMeasure(DecorView.java:690) at android.view.View.measure(View.java:19759) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2308) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1395) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1644) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1283) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6354) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:873) at android.view.Choreographer.doCallbacks(Choreographer.java:685) at android.view.Choreographer.doFrame(Choreographer.java:621) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:859) at android.os.Handler.handleCallback(Handler.java:754) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:163) at android.app.ActivityThread.main(ActivityThread.java:6342) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:880) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:770) ，则在发送响应后套接字将被关闭（通常为FIN）。 / p>