使用Java、AJAX使用Rest Web服务将表单数据插入到MySQL数据库中

I am trying to insert a record into MySQL database using HTML form. I am using AJAX to call web services in Java. But it is not working. It gives an alert saying false. When I tried with POSTMAN it works fine. But using AJAX it's not working. Can anybody help me? Thanks in advance.I am trying to insert a record into MySQL datab