rt,paddle的文档貌似不是最新的。很多例子我复制粘贴都跑不起来，某些地方发生了很大变化，比如我刚刚测试的lac
文档上面的url是 http://127.0.0.1:8866/predict/text/lac
一直报404,折腾了半天也没有请求成功，最后在paddlehub群友的帮助下才找到问题
实际的地址是： http://127.0.0.1:8866/predict/lac
请求的参数是
"text": [
"你好，世界"
]
}
注意！!
如果是用Postman发送，记得，字段名一定要用"",如果是python会自动转换，官网例子就是py,没有加"",折腾了半天。
本次测试只跑通了lac模型，其他的模型一跑就是
return com'entry'.execute(sys.argv[idx:])
File "/usr/local/python3/lib/python3.7/site-packages/paddlehub/commands/serving.py", line 349, in execute
self.start_serving()
File "/usr/local/python3/lib/python3.7/site-packages/paddlehub/commands/serving.py", line 242, in start_serving
self.start_single_app_with_args()
File "/usr/local/python3/lib/python3.7/site-packages/paddlehub/commands/serving.py", line 218, in start_single_app_with_args
self.preinstall_modules()
File "/usr/local/python3/lib/python3.7/site-packages/paddlehub/commands/serving.py", line 150, in preinstall_modules
method_name = m.serving_func_name
AttributeError: 'ModuleV1_ea2c82202b3de54aa16aeac9efea20a2' object has no attribute 'serving_func_name'
O(==)O,可能是本人比较菜，给paddle团队点个赞，希望能慢慢改进。
最后吐槽一下 bug真多...