常见spring或第三方内置静态类与工具

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简介

在日常开发中，可以会用到各种各样的静态变量或工具类，但其实spring源生就提供了很多优秀的静态变量类和工具类，这里简单记录一下。

spring

  • org.springframework.http.MediaType

http返回和请求头等信息

  • org.springframework.http.HttpStatus

http各种状态码与对应关系

org.dozer

  • org.dozer.Mapper

对象之间拷贝属性，类似于org.apache.commons.beanutils.copyProperties(Object dest, Object orig)

源码

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package org.dozer;

/**
 * Public root interface for performing Dozer mappings from application code.
 * 
 * @author tierney.matt
 * @author garsombke.franz
 */
public interface Mapper {

  /**
   * Constructs new instance of destinationClass and performs mapping between from source
   *
   * @param source
   * @param destinationClass
   * @param <T>
   * @return
   * @throws MappingException
   */
  <T> T map(Object source, Class<T> destinationClass) throws MappingException;

  /**
   * Performs mapping between source and destination objects
   *
   * @param source
   * @param destination
   * @throws MappingException
   */
  void map(Object source, Object destination) throws MappingException;

  /**
   * Constructs new instance of destinationClass and performs mapping between from source
   *
   * @param source
   * @param destinationClass
   * @param mapId
   * @param <T>
   * @return
   * @throws MappingException
   */
  <T> T map(Object source, Class<T> destinationClass, String mapId) throws MappingException;

  /**
   * Performs mapping between source and destination objects
   *
   * @param source
   * @param destination
   * @param mapId
   * @throws MappingException
   */
  void map(Object source, Object destination, String mapId) throws MappingException;

}