springMVC @RequestParam詳解

@RequestParam 來映射請求參數

* value 值即請求參數的參數名
 * required 該參數是否必須，預設是true
 * defaultValue 請求參數的預設值

@RequestMapping("/testRequestParam")
public String testRequestParam(@RequestParam(value="username") String un,@RequestParam(value="age",required=false,defaultValue="0") int age){
    System.out.println(un +" "+age);
    return SUCCESS;
}