Spring工具类ToStringBuilder用法简介

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

  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。