삶은 예배다.

// bean 복제
public static Object cloneBean(Object bean)

// orig에서 dest로 복제, 동일 속성명이 존재해야합니다.
public static void copyProperties(Object dest, Object orig)

// orig의 property를 dest로 복제
public static void copyProperty(Object bean, String name, Object value)

// Return the value of the specified array property of the specified bean, as a String array.
public static String[] getArrayProperty(Object bean, String name)

// 배열값 가져오기, property name을 'name[0]' 이런 식으로 주어야 한다. 규칙임
public static String getIndexedProperty(Object bean, String name)

// 배열값 가져오기 index는 몇번째
public static String getIndexedProperty(Object bean, String name, int index)

// mapped property 가져오기, property name을 'name(0)' 이런 식으로 주어야 한다.
public static String getMappedProperty(Object bean, String name)
// mapped property 가져오기
public static String getMappedProperty(Object bean, String name, String key)

public static String getNestedProperty(Object bean, String name)

// bean에서 값 가져오기
public static String getProperty(Object bean, String name)

public static String getSimpleProperty(Object bean, String name)

// bean에서 해당 name의 property에 value를 convert해서 넣는다.
public static void setProperty(Object bean, String name, Object value)

/*
 * bean 있는 값을 key, value로 map에 넣어 줍니다. 가장 많이 쓰이는 메소드 중 하나
 */
public static Map describe(Object bean)

/*
 * map에 있는 값을 bean에 넣어 줍니다. 가장 많이 쓰이는 메소드 중 하나
 */
public static void populate(Object bean, Map properties)

    public Person(String name, int age)
    {
        this.name = name;
        this.age = age;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }

    public String toString()
    {
        final String TAB = "    ";

        String retValue = "";

        retValue = "Person ( "
            + "name = " + this.name + TAB
            + "age = " + this.age + TAB
            + " )";

        return retValue;
    }
}

    public String[] getFld1() {
        return fld1;
    }
    public void setFld1(String[] fld1) {
        this.fld1 = fld1;
    }
    public int[] getFld2() {
        return fld2;
    }
    public void setFld2(int[] fld2) {
        this.fld2 = fld2;
    }
    public List getPersonList() {
        return personList;
    }
    public void setPersonList(List personList) {
        this.personList = personList;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public Date getCredate() {
        return credate;
    }
    public void setCredate(Date credate) {
        this.credate = credate;
    }
    public String getFirstName() {
        return firstName;
    }
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    public String getLastName() {
        return lastName;
    }
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
    public Person getPerson() {
        return person;
    }
    public void setPerson(Person person) {
        this.person = person;
    }
    public String toString()
    {
        final String TAB = "    ";

        String retValue = "";

        retValue = "Employee ( "
            + "address = " + this.address + TAB
            + "firstName = " + this.firstName + TAB
            + "lastName = " + this.lastName + TAB
            + "age = " + this.age + TAB
            + "person = " + this.person + TAB
            + "credate = " + this.credate + TAB
            + "personList = " + this.personList + TAB
            + " )";

        return retValue;
    }

}

  if (properties == null) {
   return;
  }

  BeanUtils.populate(bean, properties);

 }

    //bean의 value을 map에 넣어주는 메소드
 public static void beanToMap(java.lang.Object bean, java.util.Map properties)
   throws IllegalAccessException, InvocationTargetException,
   NoSuchMethodException {

  Map map = PropertyUtils.describe(bean);

  map.remove("class");
  properties.putAll(map);

 }
}

        emp = new Employee();
        emp.setAddress("경기도");
        emp.setFirstName("kim");
        emp.setLastName("hyun");
        emp.setPerson(new Person("kkaok", 22));
        emp.setPersonList(list);
        emp.setAge(22);
        emp.setFld1(new String[]{"0","1","2"});

        map = new GSData();
        //map = new HashMap();
        map.put("address", "경기도");
        map.put("firstName", "kim");
        map.put("lastName", "hyun");
        map.put("person", new Person("kkaok", 22));
        map.put("personList", list);
        map.put("age", new Integer(22));
        map.put("fld1", new String[]{"0","1","2"});
    }

    public void testmapToBean() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException{
        Integer i1= new Integer(0);

        new ConvertUtilsBean().convert("0", i1.getClass());

        Employee emptest = new Employee();
        BeanConvertUtils.mapToBean(map, emptest);
        //System.out.println(emp.toString());
        //System.out.println(emptest.toString());
        assertEquals(emp.toString(), emptest.toString());
    }

    public void testbeanToMap() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException{
        Map maptest = new HashMap();
        BeanConvertUtils.beanToMap(emp, maptest);
        //System.out.println(map.toString());
        //System.out.println("maptest : "+maptest.toString());

        assertEquals(map.get("address"), maptest.get("address"));
        assertEquals(map.get("age"), maptest.get("age"));
    }

}