InitBinder和数据校验

public class MyDateeditor extends PropertiesEditor{
    @Override
    public void setAsText(String text) throws IllegalArgumentException {
        SimpleDateFormat sdf=getDate(text);
        Date da=null;
        try {
            da=sdf.parse(text);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        setValue(da);
    }

    private SimpleDateFormat getDate(String text) {
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy年MM月dd日");
        if (Pattern.matches("^\d{4}-\d{1,2}-\d{1,2}$",text)){
            sdf=new SimpleDateFormat("yyyy-MM-dd");
        }
        return sdf;
    }

}

@Controller
public class FirstController {
    @InitBinder
    public void initbinder(WebDataBinder binder){
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
        binder.registerCustomEditor(Date.class,new MyDateeditor());
    }



    @RequestMapping("first")
    public String login(String username, int age, Date birthday){
        System.out.println(username);
        System.out.println(age);
        System.out.println(birthday);
        return "second";
    }
}



配置：

<context:component-scan base-package="day011"></context:component-scan>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
 <property name="prefix" value="/"></property>
 <property name="suffix" value=".jsp"></property>
</bean>



数据校验：

public class ScondController {
    @RequestMapping("/register")
    public String register(@Valid User info, BindingResult br, Model model){
        if (br.getErrorCount()>0){
            FieldError userage=br.getFieldError("uage");
            FieldError username=br.getFieldError("uame");
            FieldError userphone=br.getFieldError("phone");
            FieldError birthday=br.getFieldError("birthday");
            FieldError email=br.getFieldError("email");
            if (userage!=null){
                String useragemsg=userage.getDefaultMessage();
                model.addAttribute("useragemsg",useragemsg);
            }
            if (username!=null){
                String usernamemsg=username.getDefaultMessage();
                model.addAttribute("usernamemsg",usernamemsg);
            }
            if (userphone!=null){
                String userphonemsg=userphone.getDefaultMessage();
                model.addAttribute("userphonemsg",userphonemsg);
            }
            if (birthday!=null){
                String birthdaymsg=birthday.getDefaultMessage();
                model.addAttribute("birthdaymsg",birthdaymsg);
            }
            if (email!=null){
                String emailmsg=email.getDefaultMessage();
                model.addAttribute("emailmsg",emailmsg);
            }
        }
        return "second";
    }
}

public class User {
    @NotNull(message = "用户名不能为空")
    private String uame;
  @Min(value = 10 ,message = "你太小啦")
  @Max(value = 50,message = "你太大啦")
    private Integer uage;

  @DateTimeFormat(style = "yyyy-MM-dd")
    private Date birthday;

  @Pattern(regexp = "^\w+@\w+\.\w+$",message = "邮箱格式不正确")
    private String email;

    public String getUame() {
        return uame;
    }

    public void setUame(String uame) {
        this.uame = uame;
    }

    public Integer getUage() {
        return uage;
    }

    public void setUage(Integer uage) {
        this.uage = uage;
    }

    public Date getBirthday() {
        return birthday;
    }

    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    @Pattern(regexp = "1[3|5|7|9|8]\d{9}",message = "手机号格式不正确")
  private String phone;


}

<context:component-scan base-package="day012"></context:component-scan>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
 <property name="prefix" value="/"></property>
 <property name="suffix" value=".jsp"></property>
</bean>

<bean id="myb" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
 <property name="providerClass"  value="org.hibernate.validator.HibernateValidator"></property>
</bean>
<mvc:annotation-driven validator="myb"></mvc:annotation-driven>