我有一个django rest api作为我的android应用程序的后端。我希望我的应用用户能够登录并注册我的应用。当用户注册或将新用户添加到用户表时，应生成该用户的身份验证令牌。我使用用户模型中的以下代码执行此操作：
# This code is triggered whenever a new user has been created and saved to the database
@receiver(post_save, sender=settings.AUTH_USER_MODEL)
def create_auth_token(sender, instance=None, created=False, **kwargs):
if created:
Token.objects.create(user=instance)
现在，当我尝试以新创建的用户身份登录时，使用令牌身份验证时，我需要做的就是在用户请求正文中发送电子邮件和密码。我这样做是使用改造2：
public interface UserService {
@POST("users/api-token-auth/")
Call<String> loginInToken(@Body LoginCredentials loginCredentials);
}
LoginCredentials类看起来像这样：
public class LoginCredentials {
private String email;
private String password;
public LoginCredentials() { }
public LoginCredentials(String email, String password) {
this.email = email;
this.password = password;
}
public String getEmail() {
return email;
}
public String getPassword() {
return password;
}
}
在我的应用程序中，我使用UserService中包含的此接口方法对django rest api进行以下调用：
@Override
public void loginEmailUser(LoginCredentials loginCredentials) {
Call<String> call = userServiceApi.loginInToken(loginCredentials);
call.enqueue(new Callback<String>() {
@Override
public void onResponse(Call<String> call, Response<String> response) {
Log.d("USER_REPOSITORY", response.toString());
}
@Override
public void onFailure(Call<String> call, Throwable t) {
Log.d("USER_REPOSITORY", t.toString());
}
});
}
如果成功，电子邮件和密码已经张贴到后端以换取相应用户的身份验证令牌，因此我应该通过发出此请求来接收令牌。但是，当调用此端点api-token-auth时，使用以下throwable调用onFailure方法：
USER_REPOSITORY: Response{protocol=http/1.0, code=400, message=Bad Request, url=http://XXX.YYY.Z.AAA:8000/users/api-token-auth/}
这是我的django urls.py文件，它对应于来自android客户端的被调用的url：
from django.conf.urls import url
from users import views as user_views
from rest_framework.authtoken import views as auth_views
urlpatterns = [
url(r'^api-token-auth/', auth_views.obtain_auth_token),
url(r'^create/', user_views.UserCreate.as_view(), name="create"),
url(r'^$', user_views.UserList.as_view(), name="users_list"),
url(r'^(?P<pk>[0-9]+)/$', user_views.UserDetail.as_view(), name="user_detail"),
]
django rest docs说，使用POST的电子邮件和密码调用api-token-auth url会导致返回令牌并且状态代码为200.
为什么我似乎按照成功请求的指示做了错误的请求和状态代码400？
答案 0 :(得分：0)
我正在使用OAUth添加示例 LOGIN类。我正在使用Volley库
public class Login extends AppCompatActivity implements View.OnClickListener {
EditText userName, Password;
Button login;
public static final String LOGIN_URL = "http://192.168.100.5:84/Token";
public static final String KEY_USERNAME = "UserName";
public static final String KEY_PASSWORD = "Password";
String username, password;
String accesstoken, tokentype, expiresin, masterid, name, access, issue, expires, masterid1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
userName = (EditText) findViewById(R.id.login_name);
Password = (EditText) findViewById(R.id.login_password);
userName.setHint(Html.fromHtml("<font color='#008b8b' style='italic'>Username</font>"));
Password.setHint(Html.fromHtml("<font color='#008b8b'>Password</font>"));
login = (Button) findViewById(R.id.login);
login.setOnClickListener(this);
}
private void UserLogin() {
username = userName.getText().toString().trim();
password = Password.getText().toString().trim();
StringRequest stringRequest = new StringRequest(Request.Method.POST, LOGIN_URL,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
accesstoken = jsonObject.getString("access_token");
tokentype = jsonObject.getString("token_type");
expiresin = jsonObject.getString("expires_in");
username = jsonObject.getString("userName");
masterid = jsonObject.getString("MasterID");
masterid = masterid.replaceAll("[^\\.0123456789]", "");
masterid1 = jsonObject.getString("MasterID");
name = jsonObject.getString("Name");
access = jsonObject.getString("Access");
issue = jsonObject.getString(".issued");
expires = jsonObject.getString(".expires");
SessionManagement session = new SessionManagement(Login.this);
session.createLoginSession(accesstoken, tokentype, expiresin, username, masterid, name, access, issue, expires);
// session.createLoginSession(masterid1);
openProfile();
} catch (JSONException e) {
Toast.makeText(getApplicationContext(), "Fetch failed!", Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// Toast.makeText(Login.this, error.toString(), Toast.LENGTH_LONG).show();
Toast.makeText(Login.this, "Please enter valid username and Password", Toast.LENGTH_SHORT).show();
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
//params.put("Content-Type", "application/x-www-form-urlencoded; charset=utf-8");
return params;
}
@Override
protected Map<String, String> getParams() {
Map<String, String> map = new HashMap<String, String>();
map.put(KEY_USERNAME, username);
map.put(KEY_PASSWORD, password);
//map.put("access_token", accesstoken);
map.put("grant_type", "password");
return map;
}
};
stringRequest.setRetryPolicy(new DefaultRetryPolicy(
60000, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
private void openProfile() {
Intent intent = new Intent(this, Home.class);
intent.putExtra(KEY_USERNAME, username);
startActivity(intent);
startActivity(intent);
}
@Override
public void onClick(View v) {
UserLogin();
}
}
这是Sample .please将其转换为您的要求