qcloudOnly：mysql主从同步校验

@@ -93,6 +93,8 @@
                             <h4 style="display: inline">切换流程</h4>
                         </div>
                         <div class="panel-body">
+                            <button class="btn btn-large" id="dbstatus_check-btn">数据库状态检查</button>
+                            ===》
                             <button class="btn btn-large" id="switch_mysql-btn">mysql</button>
                             ===》
                             <button class="btn btn-large" id="switch_redis-btn">redis(目标DC)</button>
@@ -315,10 +317,50 @@
         $("#java_next-btn").removeClass("btn-success");
 
         switchWait = toWait("正在切换(目标DC),请耐心等候...");
-        doExe(array, 0, toCloud);
+        //切换之前先校验db状态
+        checkMysqlStatus();
     }
 
     var switchWait;
+
+    function checkMysqlStatus(){
+        $("#dbstatus_check-btn").addClass("btn-warning");
+        $.ajax({
+            type: 'post',
+            url: contextPath + "/centerSwitch/switchMysqlCheckStatus",
+            data: {},
+            dataType: 'json',
+            success: function (resp) {
+                if(resp.code == 200){
+                    $("#dbstatus_check-btn").removeClass("btn-warning");
+                    $("#dbstatus_check-btn").addClass("btn-success");
+                    var div = "<div class=\"alert alert-info alert-block\">";
+                    div = div + "<h4 class=\"alert-heading\">dbstatus_check</h4>";
+                    div = div + resp.data + "</div>";
+                    $("#detail-div").append(div);
+
+                    //开始切换
+                    doExe(array, 0, toCloud);
+                }else{
+                    var div = "<div class=\"alert alert-warning alert-block\">";
+                    div = div + "<h4 class=\"alert-heading\">dbstatus_check</h4>";
+                    div = div + resp.data + "</div>";
+                    div = div + "发生异常:"+resp.message + "</div>";
+                    $("#detail-div").append(div);
+
+                    switchWait.modal('hide');
+                }
+
+            },
+            error: function () {
+                var div = "<div>切换(目标DC)请求异常</div>";
+                $("#detail-div").append(div);
+
+                switchWait.modal('hide');
+            }
+        });
+    }
+
     //执行切换
     function doExe(array, i,commond) {
         var name = array[i];