Create Route

There are two ways to register routes in a Blade. One is to use hard-coded registration with the Blade object, and the other is to manage multiple routes through the controller. In the previous main function we used the first way to register a route. The above method seems to be very concise, also uses the syntax of java8, but in general we have a lot of routes when writing a site, are not well managed in a file, this time Blade supports you to use SpringMvc programming habits, we can write a controller, in the directory of your Application, we better put it in the controller package, see the name will know the controller.

We create a few more routes, first create a IndexController.java through class management.

@Path
public class IndexController {

    @GET("/")
    public String index(){
        return "index.html";
    }

    @POST("/save")
    public void saveUser(@Form String username){
        System.out.println("username:" + username);
    }

    @PUT("/update")
    public void updateUser(@Form String username){
        System.out.println("username:" + username);
    }

    @DELETE("/delete/:uid")
    public void deleteUser(@PathParam Integer uid){
        System.out.println("delete user:" + uid);
    }

}

Four routes are registered in the above code, let’s talk about it, including several things in the route:

• Access path
• Request method
• Specific method body

The so-called access path is the first parameter we used to route the configuration using the Blade object. The Blade provides four request methods: GET, POST, PUT, DELETE.

When using the Blade object to register, there are 2 parameters. The first one is the access path of the route. The latter parameter is a @FunctionalInterface. The interface has 2 parameters, which are Request and Response objects. The specific operation Can be seen in the core concept chapter, more convenient and simpler than the ServletAPI, in the example we only output the text content.

At startup you can see the registration of the route by observing the console log output.