Add:add travis

.travis.yml

+language: go
+
+go:
+  - "1.11"
+  - "1.12"
+
+env:
+  - GO111MODULE=on
+
+install: true
+
+script:
+  - go fmt ./... && [[ -z `git status -s` ]]
+  - go mod vendor && go test ./... -coverprofile=coverage.txt -covermode=atomic
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

cluster/loadbalance.go

@@ -8,5 +8,3 @@ import (
 type LoadBalance interface {
 	Select([]protocol.Invoker, protocol.Invocation) protocol.Invoker
 }
-
-

cluster/loadbalance/random.go

@@ -31,7 +31,7 @@ func (lb *randomLoadBalance) Select(invokers []protocol.Invoker, invocation prot
 	sameWeight := true
 	weights := make([]int64, length)
 
-	firstWeight :=GetWeight(invokers[0], invocation)
+	firstWeight := GetWeight(invokers[0], invocation)
 	totalWeight := firstWeight
 	weights[0] = firstWeight
 

protocol/jsonrpc/http_test.go

@@ -37,7 +37,7 @@ func TestHTTPClient_Call(t *testing.T) {
 
 	// Export
 	proto := GetProtocol()
-	url, err := common.NewURL(context.Background(), "jsonrpc://127.0.0.1:20000/com.ikurento.user.UserProvider?anyhost=true&"+
+	url, err := common.NewURL(context.Background(), "jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&"+
 		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&"+
 		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&"+
 		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&"+

protocol/jsonrpc/jsonrpc_invoker_test.go

@@ -24,7 +24,7 @@ func TestJsonrpcInvoker_Invoke(t *testing.T) {
 
 	// Export
 	proto := GetProtocol()
-	url, err := common.NewURL(context.Background(), "jsonrpc://127.0.0.1:20000/com.ikurento.user.UserProvider?anyhost=true&"+
+	url, err := common.NewURL(context.Background(), "jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&"+
 		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&"+
 		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&"+
 		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&"+