package Reflection;import java.lang.reflect.Field;
import java.lang.reflect.Method;public class Reflection
{
public Object copy(Object object)throws Exception
{
Class<?> classtest = object.getClass();
Object objectCopy = classtest.
getConstructor(new Class[] {})
.newInstance(new Object[] {});
Field[] fields = classtest.getFields();
for(Field field:fields)
{
String name = field.getName();
String fristLetter = name.substring(0).toUpperCase();
String getMethodName = "get"+fristLetter+name.substring(1);
String setMethodName = "set"+fristLetter+name.substring(1);
Method getMethod = classtest.getMethod(getMethodName,new Class[]{});
Method setMethod = classtest.getMethod(setMethodName,new Class[]{field.getType()});
Object value = getMethod.invoke(object,new Object[]{});
setMethod.invoke(objectCopy,new Object[]{value});
} return objectCopy;
}
public static void main(String[] args)throws Exception {
Student student = new Student("110102","xiaoli");
student.setAge(23);
Reflection test = new Reflection();
Student st =(Student)test.copy(student);
System.out.println(st.getId()+" : "+
st.getName()+" : "+st.getAge());
}}
class Student
{
String id;
String name;
int age;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
Student()
{}
Student(String id,String name)
{
this.id = id;
this.name = name;
}
}
import java.lang.reflect.Method;public class Reflection
{
public Object copy(Object object)throws Exception
{
Class<?> classtest = object.getClass();
Object objectCopy = classtest.
getConstructor(new Class[] {})
.newInstance(new Object[] {});
Field[] fields = classtest.getFields();
for(Field field:fields)
{
String name = field.getName();
String fristLetter = name.substring(0).toUpperCase();
String getMethodName = "get"+fristLetter+name.substring(1);
String setMethodName = "set"+fristLetter+name.substring(1);
Method getMethod = classtest.getMethod(getMethodName,new Class[]{});
Method setMethod = classtest.getMethod(setMethodName,new Class[]{field.getType()});
Object value = getMethod.invoke(object,new Object[]{});
setMethod.invoke(objectCopy,new Object[]{value});
} return objectCopy;
}
public static void main(String[] args)throws Exception {
Student student = new Student("110102","xiaoli");
student.setAge(23);
Reflection test = new Reflection();
Student st =(Student)test.copy(student);
System.out.println(st.getId()+" : "+
st.getName()+" : "+st.getAge());
}}
class Student
{
String id;
String name;
int age;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
Student()
{}
Student(String id,String name)
{
this.id = id;
this.name = name;
}
}
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public Object copy(Object object) throws Exception {
Class<?> classtest = object.getClass();
Object objectCopy = classtest.getDeclaredConstructor(new Class[] {})
.newInstance(new Object[] {}); Field[] fields = classtest.getDeclaredFields();
for (Field field : fields) {
String name = field.getName();
String fristLetter = name.substring(0, 1).toUpperCase();
String getMethodName = "get" + fristLetter + name.substring(1);
String setMethodName = "set" + fristLetter + name.substring(1);
Method getMethod = classtest.getMethod(getMethodName,
new Class[] {});
Method setMethod = classtest.getMethod(setMethodName,
new Class[] { field.getType() });
Object value = getMethod.invoke(object, new Object[] {});
setMethod.invoke(objectCopy, new Object[] { value }); } return objectCopy;
} public static void main(String[] args) throws Exception { Student student = new Student("110102", "xiaoli");
student.setAge(23);
Reflection test = new Reflection();
Student st = (Student) test.copy(student);
System.out.println(st.getId() + " : " + st.getName() + " : "
+ st.getAge()); }}class Student {
String id;
String name;
int age; public String getId() {
return id;
} public void setId(String id) {
this.id = id;
} public String getName() {
return name;
} public void setName(String name) {
this.name = name;
} public int getAge() {
return age;
} public void setAge(int age) {
this.age = age;
} Student() {
} Student(String id, String name) {
this.id = id;
this.name = name; }
}
setAccessible()