Spring自定义注解(验证身份证+性别+地区)

第一步：定义注解

PersonFormId：

package com.wbg.maven1128.demo_formatter;

import java.lang.annotation.*;
@Documented
@Target({ElementType.TYPE,ElementType.FIELD,ElementType.PARAMETER})
@Retention(RetentionPolicy.RUNTIME)
public @interface PersonFormId {
}

第二步：创建实体类

Person：

package com.wbg.maven1128.demo_formatter;

import java.util.Date;

public class Person {
    Date birthday;
    String sex;
    String province;
    public Person() {
    }

    @Override
    public String toString() {
        return "Person{" +
                "birthday='" + birthday + '\'' +
                ", sex='" + sex + '\'' +
                ", province='" + province + '\'' +
                '}';
    }

    public Person(Date birthday, String sex, String province) {
        this.birthday = birthday;
        this.sex = sex;
        this.province = province;
    }

    public Date getBirthday() {
        return birthday;
    }

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

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public String getProvince() {
        return province;
    }

    public void setProvince(String province) {
        this.province = province;
    }
}

第三步：创建实现类调用接口Formatter<Person>

PersonFormatter：

package com.wbg.maven1128.demo_formatter;

import org.springframework.format.Formatter;
import java.text.ParseException;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

public class PersonFormatter implements Formatter<Person> {

    @Override
    public String print(Person object, Locale locale) {
        return null;
    }
    @Override
    public Person parse(String text, Locale locale) throws ParseException {
        if(text.length()!=18){
            throw new ParseException("请输入18位身份证",59);
        }
        else if(text.length()==18&&Verification(text)){

            return  getPerson(text);
        }else {
            throw new ParseException("身份证输入错误",59);
        }
    }
    Person getPerson(String text){
         Person person=new  Person();
        Calendar instance = Calendar.getInstance();
        int year=Integer.parseInt(text.substring(6,10));
        int month=Integer.parseInt(text.substring(10,12))-1;
        int date=Integer.parseInt(text.substring(12,14));
        instance.set(year,month,date);
        person.setBirthday(instance.getTime());
        person.setProvince(provinces.get(Integer.parseInt(text.substring(0,2))));
        person.setSex(Integer.parseInt(text.substring(16,17))%2==0?"女":"男");
        return person;
    }
    static Map<Integer,String> provinces = new HashMap<Integer, String>(){{
        this.put(11,"北京市");
        this.put(12,"天津市");
        this.put(13,"河北省");
        this.put(14,"山西省");
        this.put(15,"内蒙古自治区");
        this.put(21,"辽宁省");
        this.put(22,"吉林省");
        this.put(23,"黑龙江省");
        this.put(31,"上海市");
        this.put(32,"江苏省");
        this.put(33,"浙江省");
        this.put(34,"安徽省");
        this.put(35,"福建省");
        this.put(36,"江西省");
        this.put(37,"山东省");
        this.put(41,"河南省");
        this.put(42,"湖北省");
        this.put(43,"湖南省");
        this.put(44,"广东省");
        this.put(45,"广西壮族自治区");
        this.put(46,"海南省");
        this.put(51,"四川省");
        this.put(52,"贵州省");
        this.put(53,"云南省");
        this.put(54,"西藏自治区");
        this.put(50,"重庆市");
        this.put(61,"陕西省");
        this.put(62,"甘肃省");
        this.put(63,"青海省");
        this.put(64,"宁夏回族自治区");
        this.put(65,"新疆维吾尔自治区");
        this.put(83,"台湾地区");
        this.put(81,"香港特别行政区");
        this.put(82,"澳门特别行政区");
    }};

    boolean Verification(String text){
        text=text.toUpperCase();
        String []aa={"7","9","10","5","8","4","2","1","6","3","7","9","10","5","8","4","2"};
        String []bb={"1","0","X","9","8","7","6","5","4","3","2"};
        int sum=0;
        for (int i = 0; i < 17; i++) {
            sum+=Integer.parseInt(text.substring(i, 1 + i))*Integer.parseInt(aa[i]);
        }
        return bb[sum%11].equals(text.substring(17,18));
    }

}

第四步：调用

MyDataTimeFormatAnnotationFormatterFactory接口AnnotationFormatterFactory<MyDateFormatter>

package com.wbg.maven1128.intface;

import com.wbg.maven1128.entity.Person;
import org.springframework.context.support.EmbeddedValueResolutionSupport;
import org.springframework.format.AnnotationFormatterFactory;
import org.springframework.format.Formatter;
import org.springframework.format.Parser;
import org.springframework.format.Printer;

import java.util.*;

public class MyDataTimeFormatAnnotationFormatterFactory  implements AnnotationFormatterFactory<MyDateTimeFormat> {
    private static final Set<Class<?>> FIELD_TYPES;
    static {
        Set<Class<?>> fieldTypes = new HashSet<Class<?>>(4);
        //添加可以使用注解的类型
        fieldTypes.add(String.class);
        fieldTypes.add(Person.class);
        FIELD_TYPES = Collections.unmodifiableSet(fieldTypes);
    }
    @Override
    public Set<Class<?>> getFieldTypes() {
        return FIELD_TYPES;
    }

    @Override
    public Printer<?> getPrinter(MyDateTimeFormat annotation, Class<?> fieldType) {
        return getFormatter(annotation, fieldType);
    }

    @Override
    public Parser<?> getParser(MyDateTimeFormat annotation, Class<?> fieldType) {
        return getFormatter(annotation, fieldType);
    }
    protected Formatter<Person> getFormatter(MyDateTimeFormat annotation, Class<?> fieldType) {
        MyDateFormatter formatter = new MyDateFormatter();
        return formatter;
    }
}

第四步：启用注解

    <mvc:default-servlet-handler />
    <bean name="factoryBean" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
        <property name="formatters">
            <set>
                <bean class="com.wbg.maven1128.demo_formatter.PersonAnnotationFormatter" >
                </bean>
            </set>
        </property>
    </bean>
    <mvc:annotation-driven conversion-service="factoryBean"/>

jsp页面：

controller

package com.wbg.maven1128.controller;

import com.wbg.maven1128.demo_formatter.Person;
import com.wbg.maven1128.demo_formatter.PersonFormId;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping("/person")
public class PersonController {
    @RequestMapping(value = "/get",produces = "application/json;charset=utf-8")
    @ResponseBody
    public String getPerson(@RequestParam(value = "pid",required = false)@PersonFormId Person person){
        try {
            return person.toString();
        }catch (Exception e){
            System.out.println(e.getMessage());
            return e.getMessage();
        }
    }
    @GetMapping
    public String index(){
        return "person_index";
    }
}

最后直接测试