Spring Boot Rookie Starter (continuous update)

Directory

• Question One
• Note

Recently entered the Java Pit, learning Spring boot. Keep a record of the problems you are having.

Question One

Problem with request parameters

/get/bobI want to getbob

    @RequestMapping(value = "/get/{name}")    public String GetName(@PathVariable String name){        return "Hello world "+name;    }

/get/?name=aliceI want to get the value of namealice

Method One

 @RequestMapping(value = "/get")    public String GetName(@RequestParam String name){        return "Hello world "+name;    }

Note: This notation enforces that name must have a value. If the URL is /get , you get an error message: Name must be present

Method Two

  @RequestMapping(value = "/get")    public String GetName( String name){        return "Hello world "+name;    }

Note: The name is not very large in the field. The request URL can be a /get value of name, null or it can be /get/?name=xxxx .

Note

Spring Boot Url 是区分大小写的

Spring Boot Rookie Starter (continuous update)