最近在和日本外包合作开发JIRA对接发布系统的版本单时，
遇到这个问题。
就是我们这边的输出浏览器显示为中文，而到了JIRA端就出现乱码。
查了文档，原来django rest_framework的默认json是没指定编码的，
需要随接收方的环境编码来显示。
于是，因为项目进度，我们对了强制编码操作。
查看rest framework的源代码：
class JSONRenderer(BaseRenderer):
"""
Renderer which serializes to JSON.
"""
media_type = 'application/json'
format = 'json'
encoder_class = encoders.JSONEncoder
ensure_ascii = not api_settings.UNICODE_JSON
compact = api_settings.COMPACT_JSON
# We don't set a charset because JSON is a binary encoding,
# that can be encoded as utf-8, utf-16 or utf-32.
# See: http://www.ietf.org/rfc/rfc4627.txt
# Also: http://lucumr.pocoo.org/2013/7/19/application-mimetypes-and-encodings/
charset = None
于是，我们重写了一个继承自JSONRenderer的Utf8JSONRenderer。然后，指定一个renderer_classes属性值即可。
from rest_framework.renderers import JSONRenderer
class Utf8JSONRenderer(JSONRenderer):
charset = 'utf-8'
class DeployPoolViewSet(viewsets.ModelViewSet):
"""
This viewset automatically provides `list`, `create`, `retrieve`,
`update` and `destroy` actions.
Additionally we also provide an extra `highlight` action.
"""
serializer_class = DeployPoolSerializer
authentication_classes = (TokenAuthentication,)
renderer_classes = (Utf8JSONRenderer,)
