SpringMVC接收checkbox传值
Controller方法形参接收checkbox的值,既可以用String,也可以用String[]。
字符串数组接收的测试代码如下:
@Controller @RequestMapping("/mycontroller") public class MyController { @RequestMapping(method = RequestMethod.GET) public String form() { return "mycontroller"; } @RequestMapping(method = RequestMethod.POST) public String form1(@RequestParam("interest") String[] interest, Model model) { String a = Arrays.toString(interest); model.addAttribute("ins", a); return "ok"; } }
字符串接收的测试代码如下(测试完数组接收后 修改即可):
@Controller @RequestMapping("/mycontroller") public class MyController { @RequestMapping(method = RequestMethod.GET) public String form() { return "mycontroller"; } @RequestMapping(method = RequestMethod.POST) public String form1(@RequestParam("interest") String interest, Model model) { model.addAttribute("ins", interest); return "ok"; } }
小知识:
如果checkbox都留空(不选择),那么Controller会报错。解决办法:①前端js判断;②前端加一个hidden的checkbox。
补充方法:
@RequestParam(value = "interest", required = false)