getShortCanonicalName(Class cls)
getShortClassName(Class cls)
getSimpleName(Class cls)
@Test
public void testGetClassName(){
//获取simpleName
String simpleName1 = ClassUtils.getSimpleName(String.class);
System.out.println(simpleName1); // = String
//获取simpleName
String simpleName2 = ClassUtils.getSimpleName(null,“simpleName is null”);
System.out.println(simpleName2); // = simpleName is null
//获取canonicalName
String canonicalName = ClassUtils.getShortCanonicalName(String.class);
System.out.println(canonicalName); // = String
//获取className
String className = ClassUtils.getShortClassName(String.class);
System.out.println(className); // = String
//3者的区别：对于内部类，如内部类，区别就显示出来类
//其他情况区别不大
//获取simpleName
String simpleName3 = ClassUtils.getSimpleName(Map.Entry.class);
System.out.println(simpleName3); // = Entry
//获取canonicalName
String canonicalName2 = ClassUtils.getShortCanonicalName(Map.Entry.class);
System.out.println(canonicalName2); // = Map.Entry
//获取className
String className2 = ClassUtils.getShortClassName(Map.Entry.class);
System.out.println(className2); // = Map.Entry
}
判断是否为转型
isAssignable(Class cls, Class toClass)等等
@Test
public void testIsAssignable(){
System.out.println(“判断是否可以转型.”);
System.out.println(ClassUtils.isAssignable(Date.class, Object.class)); //= true
System.out.println(ClassUtils.isAssignable(Object.class, Date.class)); //=false
}
判断是否为内部类
isInnerClass(Class cls)
@Test
public void testIsInnerClass(){
System.out.println(ClassUtils.isInnerClass(Entry.class)); // = ture
System.out.println(ClassUtils.isInnerClass(Object.class)); //= false
}
判读是否为基础类型或者包装类
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型
isPrimitiveOrWrapper(Class type)
isPrimitiveWrapper(Class type)
@Test
public void testIsPrimitiveWrapper(){
// wrapper类有(Boolean, Byte, Character, Short, Integer, Long, Double, Float).
System.out.println(ClassUtils.isPrimitiveWrapper(Integer.class)); // = ture
System.out.println(ClassUtils.isPrimitiveWrapper(Object.class)); // = false
System.out.println(ClassUtils.isPrimitiveWrapper(String.class)); // = false
System.out.println(ClassUtils.isPrimitiveWrapper(int.class)); // = false
System.out.println(ClassUtils.isPrimitiveOrWrapper(Integer.class)); // = ture
System.out.println(ClassUtils.isPrimitiveOrWrapper(Object.class)); // = false
System.out.println(ClassUtils.isPrimitiveOrWrapper(String.class)); // = false
System.out.println(ClassUtils.isPrimitiveOrWrapper(int.class)); // = true
}
基础类型和包装类型转换
wrapperToPrimitive(Class cls)
@Test
public void testWrapperToPrimitive(){
System.out.println(ClassUtils.wrapperToPrimitive(Integer.class));// = int
}
获取类名和class类互转
convertClassesToClassNames(List
convertClassNamesToClasses(List classNames)
对象转Class对象
toClass(Object… array)
@Test
public void testToClass(){
//类转化为class对象
Class[] classAry = ClassUtils.toClass(new String(),new Object());
System.out.println(ArrayUtils.toString(classAry));
// = {class java.lang.String,class java.lang.Object}
}
获取缩略名
getAbbreviatedName(Class cls,int len)
getAbbreviatedName(String className,int len)
@Test
public void testGetAbbreviatedName(){
//获取类的缩略名称
