change grpc client transaction start requirement and add grpc demo README.md (dromara#232)

* add grpc demo

* demo fix

* tars filter and demo fix

* add hmily-grpc and hmily-grpc-demo

* polish grpc client and add license

* mod grpc client transaction start requirement and add grpc demo README.md

Author: tydhot

hmily-demo/hmily-demo-grpc/README.md

@@ -0,0 +1,45 @@
+# 环境准备
+- JDK 1.8+
+- Maven 3.2.x
+- Git
+
+# 代码拉取
+```
+  > git clone https://github.com/dromara/hmily.git
+
+  > cd hmily
+
+  > mvn -DskipTests clean install -U
+```
+
+# 执行demo 模块的sql语句。
+[sql语句] (https://github.com/dromara/hmily/blob/master/hmily-demo/sql/hmily-demo.sql)
+
+# 使用你的工具 idea 打开项目，找到hmily-demo-grpc项目。
+## 修改项目配置（hmily-demo-grpc-account为列子）
+- application.yml 下修改业务数据库     
+```
+spring:
+    datasource:
+        driver-class-name:  com.mysql.jdbc.Driver
+        url: jdbc:mysql://改成你的ip+端口/hmily_account?useUnicode=true&characterEncoding=utf8
+        username:  #改成你的用户名
+        password:  #改成你的密码
+```
+- 修改 hmily.yml,这里使用mysql来存储     
+```
+repository:
+  database:
+    driverClassName: com.mysql.jdbc.Driver
+    url : jdbc:mysql://改成你的ip+端口/hmily?useUnicode=true&characterEncoding=utf8
+    username: root #改成你的用户名
+    password: #改成你的密码
+```
+
+- run TarsHmilyAccountApplication.java
+
+## 启动hmily-demo-grpc-inventory 参考上述。
+
+## 启动hmily-demo-grpc-order 参考上述。
+
+访问：http://127.0.0.1:28087/swagger-ui.html。

hmily-demo/hmily-demo-grpc/hmily-demo-grpc-common/src/main/java/org/dromara/hmily/demo/grpc/account/service/AccountServiceGrpc.java

@@ -3,7 +3,6 @@
 import io.grpc.MethodDescriptor;
 import io.grpc.stub.ClientCalls;
 import io.grpc.stub.ServerCalls;
-import org.dromara.hmily.annotation.Hmily;
 
 import static io.grpc.stub.ClientCalls.asyncUnaryCall;
 import static io.grpc.stub.ClientCalls.asyncServerStreamingCall;
@@ -136,7 +135,6 @@ protected AccountServiceBlockingStub build(io.grpc.Channel channel,
 
     /**
      */
-    @Hmily
     public org.dromara.hmily.demo.grpc.account.service.AccountResponse payment(org.dromara.hmily.demo.grpc.account.service.AccountRequest request) {
       return ClientCalls.blockingUnaryCall(
           getChannel(), METHOD_PAYMENT, getCallOptions(), request);

hmily-demo/hmily-demo-grpc/hmily-demo-grpc-common/src/main/java/org/dromara/hmily/demo/grpc/inventory/service/InventoryServiceGrpc.java

@@ -1,7 +1,5 @@
 package org.dromara.hmily.demo.grpc.inventory.service;
 
-import org.dromara.hmily.annotation.Hmily;
-
 import static io.grpc.stub.ClientCalls.asyncUnaryCall;
 import static io.grpc.stub.ClientCalls.blockingUnaryCall;
 import static io.grpc.stub.ClientCalls.futureUnaryCall;
@@ -125,7 +123,6 @@ protected InventoryServiceBlockingStub build(io.grpc.Channel channel,
 
     /**
      */
-    @Hmily
     public org.dromara.hmily.demo.grpc.inventory.service.InventoryResponse decrease(org.dromara.hmily.demo.grpc.inventory.service.InventoryRequest request) {
       return blockingUnaryCall(
           getChannel(), METHOD_DECREASE, getCallOptions(), request);

hmily-demo/hmily-demo-grpc/hmily-demo-grpc-order/src/main/java/org/dromara/hmily/demo/grpc/order/grpc/AccountClient.java

@@ -2,7 +2,6 @@
 
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
-import org.dromara.hmily.core.holder.SingletonHolder;
 import org.dromara.hmily.demo.grpc.account.service.AccountRequest;
 import org.dromara.hmily.demo.grpc.account.service.AccountResponse;
 import org.dromara.hmily.demo.grpc.account.service.AccountServiceGrpc;

hmily-rpc/hmily-grpc/src/main/java/org/dromara/hmily/grpc/filter/GrpcHmilyTransactionFilter.java

@@ -30,7 +30,6 @@
 import io.grpc.Metadata;
 import io.grpc.Status;
 import io.grpc.ForwardingClientCallListener;
-import org.dromara.hmily.annotation.Hmily;
 import org.dromara.hmily.common.enums.HmilyActionEnum;
 import org.dromara.hmily.common.enums.HmilyRoleEnum;
 import org.dromara.hmily.common.exception.HmilyRuntimeException;
@@ -74,10 +73,6 @@ public <R, P> ClientCall<R, P> interceptCall(final MethodDescriptor<R, P> method
                 }
             }
             if (method != null) {
-                Hmily hmily = method.getAnnotation(Hmily.class);
-                if (Objects.isNull(hmily)) {
-                    return channel.newCall(methodDescriptor, callOptions);
-                }
                 Class<?>[] arg = method.getParameterTypes();
                 Long participantId = context.getParticipantId();
                 HmilyParticipant hmilyParticipant = buildParticipant(context, methodName, clazz, arg);