数据校验

package cn.itcast.pojo;

import lombok.Data;

import javax.validation.Valid; import java.util.*;

@Data public class ValidList implements List { @Valid private List list=new ArrayList<>(); @Override public int size() { return list.size(); }

@Override public boolean isEmpty() { return list.isEmpty(); } @Override public boolean contains(Object o) { return list.contains(o); } @Override public Iterator<E> iterator() { return list.iterator(); } @Override public Object[] toArray() { return list.toArray(); } @Override public <T> T[] toArray(T[] a) { return list.toArray(a); } @Override public boolean add(E e) { return list.add(e); } @Override public boolean remove(Object o) { return list.remove(o); } @Override public boolean containsAll(Collection<?> c) { return list.containsAll(c); } @Override public boolean addAll(Collection<? extends E> c) { return list.addAll(c); } @Override public boolean addAll(int index, Collection<? extends E> c) { return list.addAll(index,c); } @Override public boolean removeAll(Collection<?> c) { return list.remove(c); } @Override public boolean retainAll(Collection<?> c) { return list.retainAll(c); } @Override public void clear() {

list.clear(); }

@Override public E get(int index) { return list.get(index); } @Override public E set(int index, E element) { return list.set(index,element); } @Override public void add(int index, E element) {

list.add(index,element); }

@Override public E remove(int index) { return list.remove(index); } @Override public int indexOf(Object o) { return list.indexOf(o); } @Override public int lastIndexOf(Object o) { return list.lastIndexOf(o); } @Override public ListIterator<E> listIterator() { return list.listIterator(); } @Override public ListIterator<E> listIterator(int index) { return list.listIterator(index); } @Override public List<E> subList(int fromIndex, int toIndex) { return list.subList(fromIndex,toIndex); }

}

studentcontroller: package cn.itcast.controller;

import cn.itcast.pojo.Student; import cn.itcast.pojo.ValidList; import org.springframework.stereotype.Controller; import org.springframework.validation.BindingResult; import org.springframework.validation.ObjectError; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController;

import javax.validation.Valid; import java.util.List;

@RestController public class StudentController { @PostMapping("/students") public Student getStudent(@RequestBody @Valid ValidList studentList, BindingResult result){ if(result.hasErrors()){ List errors = result.getAllErrors(); for (ObjectError error : errors) { System.out.println(error.getObjectName()+""+error.getDefaultMessage()); } } return new Student(“te”,19); }

}