invode()学习笔记（二）

1、Person.java

package com.iteye.ibatis;

public class Person {

private Integer personId;
private String personName;
private Boolean personSex;

public Integer getPersonId() {
return personId;
}
public void setPersonId(Integer personId) {
this.personId = personId;
}
public String getPersonName() {
return personName;
}
public void setPersonName(String personName) {
this.personName = personName;
}
public Boolean getPersonSex() {
return personSex;
}
public void setPersonSex(Boolean personSex) {
this.personSex = personSex;
}
}
2、PropertyType.java
package com.iteye.ibatis;

public enum PropertyType {
INTEGER, STRING, BOOLEAN
}
3、InvokeDemo.java
package com.iteye.ibatis;

import java.beans.IntrospectionException;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import com.iteye.ibatis.PropertyType;

public class InvokeDemo {

public static void main(String[] args) {
// TODO Auto-generated method stub
PropertyDescriptor propertyDescriptor = null;
Object object = null;
Person person = new Person();
Class<?> clazz = person.getClass();
Field[] fields = clazz.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
try {
propertyDescriptor = new PropertyDescriptor(
fields[i].getName(), clazz);
} catch (IntrospectionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Method writeMethod = propertyDescriptor.getWriteMethod();
switch (PropertyType.valueOf(fields[i].getType().getSimpleName()
.toUpperCase())) {
case INTEGER:
object = 1;
break;
case STRING:
object = "liimuu";
break;
case BOOLEAN:
object = true;
break;
}
try {
writeMethod.invoke(person, object);
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
for (int i = 0; i < fields.length; i++) {
try {
propertyDescriptor = new PropertyDescriptor(
fields[i].getName(), clazz);
} catch (IntrospectionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Method readMethod = propertyDescriptor.getReadMethod();
try {
System.out.println(readMethod.invoke(person, (Object[]) null));
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
4、运行结果
1
liimuu
true