MapWrapper

@Testpublic void testMap(){	Map
   
     map = new HashMap();	map.put("param1","hello");	Account account = new Account();	account.setId(8L);	account.setUsername("admin");	Teacher teacher = new Teacher();	teacher.setId(1L);	teacher.setUsername("teacher.wang");	School school = new School();	school.setId(10L);	school.setName("the-first-school");	teacher.setSchool(school);	map.put("account",account);	map.put("teacher",teacher);	List
    
      list = new ArrayList();	for(long i=0;i<=5;i++) {		Account account1 = new Account();		account1.setId(i);		account1.setUsername("admin"+i);		list.add(account1);	}	map.put("accounts",list);	MetaObject metaObject = MetaObject.forObject(map, new DefaultObjectFactory(), new DefaultObjectWrapperFactory(), new DefaultReflectorFactory());	metaObject.setValue("a","hello");	assertThat(metaObject.getValue("a"),equalTo("hello"));	assertThat(metaObject.getValue("param1"),equalTo("hello"));	assertThat(metaObject.getValue("account.username"),equalTo("admin"));	assertThat(metaObject.getValue("account.id"),equalTo(8L));	assertThat(metaObject.getValue("teacher.username"),equalTo("teacher.wang"));	assertThat(metaObject.getValue("teacher.school.name"),equalTo("the-first-school"));	assertThat(metaObject.getValue("accounts[2].id"),equalTo(2L));}

BeanWrapper

@Testpublic void testEntity(){	Teacher teacher = new Teacher();	teacher.setId(1L);	teacher.setUsername("teacher.wang");	School school = new School();	school.setId(10L);	school.setName("the-first-school");	teacher.setSchool(school);	MetaObject metaObject = MetaObject.forObject(teacher, new DefaultObjectFactory(), new DefaultObjectWrapperFactory(), new DefaultReflectorFactory());	assertThat(metaObject.getValue("username"),equalTo("teacher.wang"));	assertThat(metaObject.getValue("school.name"),equalTo("the-first-school"));}

CollectionWrapper

由于CollectionWrapper不支持get，通过包装BeanWrapper来访问集合的属性

/** * CollectionWrapper只支持add、addAll */@Testpublic void testCollection(){	List
   
     list = new ArrayList();	for(long i=0;i<=5;i++) {		Account account = new Account();		account.setId(i);		account.setUsername("admin"+i);		list.add(account);	}	MetaObject metaObject = MetaObject.forObject(list, new DefaultObjectFactory(), new DefaultObjectWrapperFactory(), new DefaultReflectorFactory());	Account account = new Account();	account.setId(100L);	account.setUsername("guest");	metaObject.add(account); // CollectionWrapper	BeanWrapper beanWrapper = new BeanWrapper(metaObject, list);	Account account1 = (Account)beanWrapper.get(new PropertyTokenizer("[2]"));    	assertThat(account1.getId(),equalTo(2L));}