public abstract class ObjectUtils
extends Object

所有方法静态方法具体方法
修饰符和类型	方法	说明
`static <T> T`	`clone(T target)`
`static <T> T`	`defaultIfNull(T target, T defaultValue)`
`static boolean`	`equals(Object v1, Object v2)`
`static String`	`getStackTrace(Throwable throwable)`
`static boolean`	`isEmpty(Object object)`
`static String`	`toShortString(Object target)`
`static <T> String`	`toString(T target)`

public static boolean equals(Object v1,
                             Object v2)

public static String toShortString(Object target)

public static boolean isEmpty(Object object)

public static <T> T clone(T target)

public static <T> String toString(T target)

public static <T> T defaultIfNull(T target,
                                  T defaultValue)

public static String getStackTrace(Throwable throwable)

类 ObjectUtils