message: fix client ip bug.
  fix client ip bug.
diff: @@ -32,7 +32,7 @@ public class PipelineClientExample {
  System.out.println(fetch);
  if (StaticPipelineClient.succ != true) {
  - if(!StaticPipelineClient.initClient("172.17.0.2","18070")){
  + if(!StaticPipelineClient.initClient("127.0.0.1","18070")){
  System.out.println("connect failed.");
  return false;
  }
  @@ -57,7 +57,7 @@ public class PipelineClientExample {
  List<String> fetch = Arrays.asList("prediction");
  System.out.println(fetch);
  if (StaticPipelineClient.succ != true) {
  - if(!StaticPipelineClient.initClient("172.17.0.2","18070")){
  + if(!StaticPipelineClient.initClient("127.0.0.1","18070")){
  System.out.println("connect failed.");
  return false;
  }
  @@ -86,7 +86,7 @@ public class PipelineClientExample {
  }};
  List<String> fetch = Arrays.asList("prediction");
  if (StaticPipelineClient.succ != true) {
  - if(!StaticPipelineClient.initClient("172.17.0.2","9998")){
  + if(!StaticPipelineClient.initClient("127.0.0.1","9998")){
  System.out.println("connect failed.");
  return false;
  }
  