public class Test {
public static void main(String[] args) throws ClassNotFoundException {
Class<Test> testClass = Test.class;
Test test = new Test();
Class<? extends Test> testClass1 = test.getClass();
Class<Test> testClass2 = (Class<Test>) Class.forName("com.ldx.test.Test");
}
}
创建一个User
类
package com.ldx.test;
import lombok.Getter;
import lombok.Setter;
import lombok.ToString;
@Getter
@Setter
@ToString
public class User {
private String name;
private Integer age;
public boolean isAdmin(String name) {
if("admin".equals(name)) {
return true;
}
return false;
}
}
创建一个测试类Test
package com.ldx.test;
import lombok.extern.slf4j.Slf4j;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Arrays;
@Slf4j
public class Test {
public static void main(String[] args) throws Exception {
Class<User> userClass = User.class;
Field[] declaredFields = userClass.getDeclaredFields();
log.info("User类的名称:{}", userClass.getSimpleName());
log.info("User类的权限定类名:{}", userClass.getName());
log.info("User类的字段有:{}", Arrays.toString(declaredFields));
log.info("User类的方法有:{}", Arrays.toString(userClass.getDeclaredMethods()));
Method isAdmin = userClass.getMethod("isAdmin", String.class);
log.info("User::isAdmin方法返回值为:" + isAdmin.invoke(userClass.newInstance(), "admin"));
}
}
输出内容如下:
com.ldx.test.Test - User类的名称:User
com.ldx.test.Test - User类的权限定类名:com.ldx.test.User
com.ldx.test.Test - User类的字段有:[private java.lang.String com.ldx.test.User.name, private java.lang.Integer com.ldx.test.User.age]
com.ldx.test.Test - User类的方法有:[public boolean com.ldx.test.User.isAdmin(java.lang.String), public java.lang.Integer com.ldx.test.User.getAge(), public void com.ldx.test.User.setAge(java.lang.Integer), public java.lang.String com.ldx.test.User.toString(), public java.lang.String com.ldx.test.User.getName(), public void com.ldx.test.User.setName(java.lang.String)]
com.ldx.test.Test - User::isAdmin方法返回值为:true
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。