mybatis 逆向生成后遵循java驼峰法则的解决

 <settings>
  <!-- 打印查询语句 -->
  <setting name="logImpl" value="STDOUT_LOGGING" />
   <!-- 是否开启自动驼峰命名规则（camel case）映射，即从经典数据库列名 A_COLUMN 到经典Java 属性名 aColumn 的类似映射 -->
  <setting name="mapUnderscoreToCamelCase" value="true"/>
 </settings>

public interface Iterator<T> {

 /**
  * Task:测定迭代器是否完成遍历并越过数据集的最后一个元素
  * @return 迭代器若有下一个元素返回 true
  */
 public boolean hasNext();

 /**
  * Task:提取集合中当前（下一个）元素 并迭代前进下一个位置
  * @return 迭代当前元素的引用
  * @throws java.util.NoSuchElementException 若迭代已经到头，则 hasNext()为false
  */
 public T next();

 /**
  * Task:从迭代器删除next()返回的下一个元素
  *  此后调用next()的行为将与删除前一样
  * Precondition:next()已被调用，remove()尚未被调用
  *  数据集在迭代期间 除调用本方法外未被修改
  * @throws IllegalStateException 若next()未被调用
  * @throws UnsupportedOperationException 若迭代器不允许删除
  */
 public void remove();
}

import java.util.ArrayList;
import java.util.NoSuchElementException;

/**
 * 独立类迭代器
 * @param <T>
 */
public class SeparateIterator<T> implements Iterator<T> {
 private ArrayList<T> list;
 private int nextPosition; //next()返回最近元素的位置
 private boolean wasNextCalled; //需要删除的

 public SeparateIterator(ArrayList<T> arrayList) {
  list=arrayList;
  nextPosition=0;   //用于跟踪迭代到何处
  wasNextCalled=false;  //用于检出是否首先调用了next()
 }

 @Override
 public boolean hasNext() {
  return nextPosition<list.size();
 }

 @Override
 public T next() {
  if(hasNext()) {
   wasNextCalled = true;  //设置为true，remove()方法可以调用next()
   nextPosition++;
   return list.get(nextPosition-1); //由于先前移，故减一

  }
  else
   throw new NoSuchElementException("Illegal call to next();"+"iterator is after end of list!");
 }

 @Override
 public void remove() {
  if(wasNextCalled){
   list.remove(nextPosition);
   nextPosition--;
   wasNextCalled=false;
  }
  else
   throw new IllegalStateException("Illegal call to remove();"+"next() was not called!");
 }
}

import java.util.ArrayList;

public class Test {
 public static void main(String[] args){
  ArrayList<String> arrayList=new ArrayList<String>();
  arrayList.add("Ned");
  arrayList.add("John");
  arrayList.add("Robb");
  arrayList.add("Sansa");
  arrayList.add("Arya");
  arrayList.add("Bran");

  for (String s:arrayList) { //输出
   System.out.println(s);
  }
  System.out.println();

  Iterator<String> nameofGQT=new SeparateIterator<String>(arrayList);  //调用SeparateIterator的构造函数把迭代器namwodGQT与arrayList连接在一起
//  while (nameofGQT.hasNext())
//   System.out.print(nameofGQT.next()+" "); //用于测试，否则会抛出NoSuchElementException异常
//  System.out.println();
  nameofGQT.next();   //The old wolf is gone! Poor Ned！
//  while (nameofGQT.hasNext())
//   System.out.print(nameofGQT.next()+" "); //用于测试，否则会报出NoSuchElementException异常
//  System.out.println();
  nameofGQT.next();
  nameofGQT.remove();  //The Young Wolf is dead!
  //nameofGQT.remove(); //出错，未先使用next(),报出IllegalStateException异常
  while (nameofGQT.hasNext())
   System.out.print(nameofGQT.next()+" ");

 }
}