public ParameterHandler newParameterHandler(MappedStatement mappedStatement, Object object, BoundSql sql, InterceptorChain interceptorChain){
 ParameterHandler parameterHandler = mappedStatement.getLang().createParameterHandler(mappedStatement,object,sql);
 parameterHandler = (ParameterHandler) interceptorChain.pluginAll(parameterHandler);
 return parameterHandler;
 }
public Object pluginAll(Object target) {
 for (Interceptor interceptor : interceptors) {
 target = interceptor.plugin(target);
 }
 return target;
 }

/** 插件簽名，告訴mybatis單錢插件用來攔截那個對象的哪個方法 **/
@Intercepts({@Signature(type = ResultSetHandler.class,method ="handleResultSets",args = Statement.class)})
public class MyFirstInterceptor implements Interceptor {

 /** @Description 攔截目標(biāo)對象的目標(biāo)方法 **/
 @Override
 public Object intercept(Invocation invocation) throws Throwable {
 System.out.println("攔截的目標(biāo)對象："+invocation.getTarget());
 Object object = invocation.proceed();
 return object;
 }
 /**
 * @Description 包裝目標(biāo)對象 為目標(biāo)對象創(chuàng)建代理對象
 * @Param target為要攔截的對象
 * @Return 代理對象
 */
 @Override
 public Object plugin(Object target) {
 System.out.println("將要包裝的目標(biāo)對象："+target);
 return Plugin.wrap(target,this);
 }
 /** 獲取配置文件的屬性 **/
 @Override
 public void setProperties(Properties properties) {
 System.out.println("插件配置的初始化參數(shù)："+properties);
 }
}

<!-- 自定義插件 -->
 <plugins>
  <plugin interceptor="mybatis.interceptor.MyFirstInterceptor">
   <!--配置參數(shù)-->
   <property name="name" value="Bob"/>
  </plugin>
 </plugins>

public class MyBatisTest {
 public static SqlSessionFactory sqlSessionFactory = null;

 public static SqlSessionFactory getSqlSessionFactory() {
  if (sqlSessionFactory == null) {
   String resource = "mybatis-config.xml";
   try {
    Reader reader = Resources.getResourceAsReader(resource);
    sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
   } catch (IOException e) {
    e.printStackTrace();
   }
  }
  return sqlSessionFactory;
 }

 public void testGetById()
 {
  SqlSession sqlSession = this.getSqlSessionFactory().openSession();
  PersonMapper personMapper = sqlSession.getMapper(PersonMapper.class);
  Person person=personMapper.getById(2001);
  System.out.println(person.toString());
 }

public static void main(String[] args) {
  new MyBatisTest().testGetById();
 }
}