/** * @功能描述: * 1.@RequestMapping(value={"add","add2"}) * 表示多地址映射,都可以请求的到 * 2.@RequestParam(name = "userName", defaultValue = "张三") * 表示如果没有传递userName或没有值,则默认值采用"张三" */@RequestMapping(value={"add","add2"})@ResponseBodypublic String add(@RequestParam(name = "userName", defaultValue = "张三") String userName) { System.out.println("userName = "+ userName); return userName;}