commons.apache

1、ToStringBuilder

//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：

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