Spring工具类ToStringBuilder用法简介

比如说我们需要打印某个方法的User参数对象

  package test;

  /**

    *

    * @author zhengtian

    * @time 2012-6-28

    */

    public class User {

        private String name;

        private int age;

        

        public String getName() {

            return name;

        }

        

        public void setName(String name) {

            this.name = name;

        }

        

        public int getAge() {

            return age;

        }

        

        public void setAge(int age) {

            this.age = age;

        }

  }

下面是ToStringBuilder的使用方法

  System.out.println("-------------ToStringBuilder-------------------------");

    User u = new User();

    u.setAge(25);

    u.setName("zhengtian");

    

  //对象及其属性一行显示

    System.out.println(ToStringBuilder.reflectionToString(u));

    System.out.println(ToStringBuilder.reflectionToString(u, ToStringStyle.DEFAULT_STYLE));

    //属性换行显示

    System.out.println(ToStringBuilder.reflectionToString(u, ToStringStyle.MULTI_LINE_STYLE));

    //不显示属性名，只显示属性值，在同一行显示

    System.out.println(ToStringBuilder.reflectionToString(u, ToStringStyle.NO_FIELD_NAMES_STYLE));

    //对象名称简写

    System.out.println(ToStringBuilder.reflectionToString(u, ToStringStyle.SHORT_PREFIX_STYLE));

    //只显示属性

    System.out.println(ToStringBuilder.reflectionToString(u, ToStringStyle.SIMPLE_STYLE));

结果显示：

-------------ToStringBuilder-------------------------

test.User@141d683[name=zhengtian,age=25]

test.User@141d683[name=zhengtian,age=25]

test.User@141d683[

  name=zhengtian

  age=25

]

test.User@141d683[zhengtian,25]

User[name=zhengtian,age=25]

zhengtian,25

描述：ToStringBuilder比较适合在打日志时，输出参数的信息，特别是在参数为对象时，该工具类能够很方便的自动打印对象中的属性值。