else{
$.ajax({
type:"POST",
url :"/register/mailcode.do",
data :{"mail":mail,"mailcode":mailcode},
datatype: "json",
success:function(data){
if(data == 'success'){
alert("发送成功");
}else{
alert("该邮箱已经被占用");
return false;
}
},
error:function(){
alert("dasd");
}

因为没有这个页面一直走error。。。我是小白

@ResponseBody
@RequestMapping("/register")
@Controller
public class MailController {

@Resource
private RegisterService registerService;
/**
* 发送邮箱验证码
* @return
*/
@RequestMapping("/mailcode.do")
public String mailcode(String mail,String mailcode){
RegisterPojo registerPojo = registerService.findBymail(mail);
if(registerPojo == null){
return "success";
}
return "";

}