新增: 根据邮箱来获取用户

app/controllers/concerns/render_helper.rb

@@ -3,7 +3,7 @@ module RenderHelper
     render json: { status: 0, message: 'success' }.merge(data)
   end
 
-  def render_error(status = -1, message = '')
+  def render_error(message = '', status=-1)
     render json: { status: status, message: message }
   end
 

app/controllers/users_controller.rb

@@ -301,6 +301,12 @@ class UsersController < ApplicationController
     end
   end
 
+  def email_search 
+    return render_error('请输入email') if params[:email].blank?
+    @user = User.find_by(mail: params[:email])
+    return render_not_found unless @user.present?
+  end
+
   private
   def load_user
     @user = User.find_by_login(params[:id]) || User.find_by(id: params[:id])