Weekly Note

1. executeUpdate return the rows found or match instead of affected rows, if u wanna to get the suppose answer, u could use the UseAffectedRows args to make it.

2. Ensure this arg’s value should be false if u do not want use it. Something may got wrong on the c tag rendering as a result of it.

3. spring boot controller response

   @Controller
   public class ResponseController{
   
       @GetMapping("page")
       public String Page(){
           //will react to index.html directly 
           return "index";
       }
   
       @GetMapping("/json1")
       public Entity json1Response(){
           Entity entity = new Entity();
           return entity;
       }
   
       @GetMapping("/json2")
       public Map json2Response(){
           Map map = new HashMap<>();
           map.put("entity1", new Entity());
           return map;
       }
   
       @GetMapping("/json3")
       @ResponseBody()
       public Entity json3Response(){
           Entity entity = new Entity();
           return entity;
       }
   
       @GetMapping("/ouput")
       @ResponseBody()
       public String ouputResponse(){
           String ouput = "output";
           return output;
       }
   
       @GetMapping("/controllerRouter")
       public ModelAndView routerDirect(){
           String url = "/controller/router";
           return new ModelAndView("redirect:" + url);
       }   
   }

4. https://github.com/Germey/AwesomeWebSpider/blob/master/WebSpider.pdf