diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 44854cb..5a56ea4 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -52,25 +52,24 @@ class ProjectsController < ApplicationController
     #=============================================>项目添加用户
     
     def addUsers
-    #Todo
-    uid = params[:user_id]
-    register = session[:user_id]
-    #username = params[:username]
-    pid = params[:project_id]
-    params_pu = {project_id: pid,user_id: uid}
-    pu = Projects_user.new(params_pu)
-    pu.save
-    content = User.find_by(id: register).name + "邀请您进入项目" + Project.find_by(id: pid).name
-    puts content
-    params_note = {user_id: uid,content: content,category: 2,project_id: pid}
-    note = Note.new(params_note)
-    note.save!
-    #puts Note.find_by(id: note.id).inspect
-    # now = Datetime.now
-    # note.created_at = now
-    # note.updated_at = now
-    note.save!
-    render :json => {:code => 0}
+        uid = User.find_by(email:params[:email]).id# 需要添加的用户
+        register = session[:user_id]# 当前用户
+        pid = params[:project_id]
+        # 检查该项目中是否已经有要添加的用户
+        pu_exist=Projects_user.find_by(project_id:pid,user_id:uid)
+        if pu_exist.nil?# 不存在
+            params_pu = {project_id: pid,user_id: uid}
+            pu = Projects_user.new(params_pu)
+            pu.save
+            content = User.find_by(id: register).name + "邀请您进入项目" + Project.find_by(id: pid).name
+            puts content
+            params_note = {user_id: uid,content: content,category: 2,project_id: pid}
+            note = Note.new(params_note)
+            note.save!
+            render :json => {:code => 0}
+        else# 存在
+            render json:current_user.errors, status: :unprocessable_entity
+        end
     end
     
     #=============================================>项目详情
@@ -117,6 +116,7 @@ class ProjectsController < ApplicationController
           render json:current_user.errors, status: :unprocessable_entity
         end
     end
+    
     private
         def project_params
           params.require(:project).permit(:name,:content,:id)
diff --git a/public/pages/project_detail.html b/public/pages/project_detail.html
index 15b521f..44b76d3 100644
--- a/public/pages/project_detail.html
+++ b/public/pages/project_detail.html
@@ -77,7 +77,7 @@
                                 </div>
                                 <!-- /.box-body -->
                                 <div class="box-footer">
-                                    <button onclick="cy_submit()" class="btn btn-primary pull-right">提交修改</button>
+                                    <button onclick="basic_alter()" class="btn btn-primary pull-right">提交修改</button>
                                 </div>
                                 <!-- /.box-footer -->
                             </div>
@@ -92,7 +92,6 @@
                             </div>
                             <!-- /.box-header -->
                             <!-- form start -->
-                            <form role="form">
                                 <div class="box-body">
 									<div class="row">
 									<div class="col-lg-9 col-md-push-2">
@@ -112,16 +111,15 @@
 									<!-- /.row -->
                                     <div class="form-group row has-feedback">
                                         <div class="col-sm-6 col-md-push-2">
-                                            <input type="text" class="form-control" value="" id="cy_new_user" name="address" placeholder="输入新成员邮箱">
+                                            <input type="text" class="form-control" value="" id="new_user_email" placeholder="输入新成员邮箱">
                                         </div>
 										<div class="col-sm-2 col-md-push-2">
-											<button onclick="cy_addUser()" class="btn btn-primary btn-success">添加成员</button>
+											<button onclick="addUser()" class="btn btn-primary btn-success">添加成员</button>
 										</div>
                                     </div>
                                     <!-- ./form-group -->
                                 </div>
                                 <!-- /.box-body -->
-                            </form>
                         </div>
                     </div>
                     <!-- ./col -->
@@ -180,32 +178,64 @@
               }
             });
         });
-        function cy_addUser(){
-            $.ajax({
-          		type:"post",       			
-    			dataType:"json",
-    			url:"/projects.json",
-    			data:{
-    				"user_id":$("#cy_new_user"),
-    				"project_id":parent.LoginUserInfo.selectProject
-    			},
-    			statusCode: {
-                    200: function(rpstr) {// 请求成功
-                        var robj = eval('('+rpstr+')');
-                        if(robj["code"]==0){
-                            window.location.reload();
-                        }
-                        else{
-                            //todo
-                        }
+        function addUser(){
+            var new_user_email=$("#new_user_email").val();
+            if( new_user_email.length>0 ){
+                // 邮箱对应的用户是否存在
+                var exist;
+          		$.ajax({
+                    type: "get",
+                    dataType: "json",
+                    url:"/users/emailExist.json",
+                    async:false,// 强制同步
+                    data: {
+                      "email":new_user_email
                     },
-                    401:function(){// 未授权
-                    
+                    statusCode: {
+                      200: function(data) {// 请求成功
+                        //alert(data);
+                        if( data=='1' )
+                          exist=true;
+                        else
+                          exist=false;
+                      },
+                      422:function(){
+                        alert("输入不符合要求，请重新输入！");
+                      },
+                      401:function(){// 未授权
+                        alert("用户名或密码错误！");
+                      }
                     }
-              }
-            });
+                  });
+                  if( exist ){// 邮箱存在
+                    $.ajax({
+                  		type:"post",       			
+            			dataType:"json",
+            			async:false,// 强制同步
+            			url:"/projects/users.json",
+            			data:{
+            				"email":new_user_email,
+            				"project_id":parent.LoginUserInfo.selectProject
+            			},
+            			statusCode: {
+                            200: function(response) {// 请求成功
+                                alert("添加成功！");
+                                window.location.reload();
+                            },
+                            422:function(){
+                                alert("用户已经在项目中！")
+                            }
+                      }
+                    });
+                  }else{// 邮箱不存在
+                    alert("该邮箱对应的用户不存在！")
+                  }
+            }else{
+                alert("请输入完整！");
+            }
+            // 添加用户
         }
-        function cy_deleteUser(id){
+        function deleteUser(id){
             return;
             $.ajax({
           		type:"delete",          			
@@ -232,7 +262,7 @@
               }
             });
         }
-        function cy_submit(){
+        function basic_alter(){
             var project_content=$("#project_content").val();
             var project_name=$("#project_name").val();
             if( project_name.length>0 && project_content.length>0 ){