how to fixe cors problen in angular 6. -------------------------------------------- e.g. -@CrossOrigin(origins = "http://localhost:4200/") -at @configuration class @Bean public CorsFilter corsFilter() { UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); CorsConfiguration config = new CorsConfiguration(); config.setAllowCredentials(true); config.addAllowedOrigin("*"); config.addAllowedHeader("*"); config.addAllowedMethod("OPTIONS"); config.addAllowedMethod("GET"); config.addAllowedMethod("POST"); config.addAllowedMethod("PUT"); config.addAllowedMethod("DELETE"); source.registerCorsConfiguration("/**", config); return new CorsFilter(source); } //Api call-> http api call 1.first HttpClient i
Ajax calling to controller method Sample Code: Desc: 1.>onbutton click id = 'call' click, ajax() will call to states() method that defined in controller class . and getting response into 'Result' variable object and putting response into divID of <div> tag into body . <script type="text/javascript"> $(document).ready(function() { $('#call').click(function () //'call is an ID of UI comp'; { $.ajax({ type: "post", url: "./states", //Controller method data: “cname”:india, success: function(Result){ $('#divID).append(Result); } }); }); }); </script> <title>Jsp file</title> </head> <body> input:<input id="cname" type=&qu
Web.xml file is Written .will be load first and inside web.xml file we have one default file will we load Inside at least one servlet should be . Whatever the bean we are writing inside this file will be loaded at server startup or first User Request. i.e Connection beans ,database related beans,tx beans ..etc. For Spring Mvc dispatcherServlet have used -called front controller its take care all the user request and further process .How http request response will be process all stuff will handled by DS Servlet . Flow: Step 1 : first user request will be take by DispatcherServlet. Step 2 : DS will call and take the help of HandlerMapping and get to know the Controller class . Step 3 : And then controller will process the request by executing appropriate methods and return back the View using ModelAndView Step 4: Actual view will populated and Step 5 : Finally DS will pass the Model object to the View page to display the View with result on UI. Not
name is an key in the jsonarr
ReplyDeleteLike .
Jsonarr=[{
Id:1,name:"sushil"
},
{
Id:12,
Name:"sk"
}
]
On v.name we will get sushil and sk values from jsonarr array object
ReplyDelete