javaBean-commonUtils工具类

Posted 2020-10-03

package cn.code.domain;

public class Person {
    private String name;
    private int age;
    private String gender;
    @Override
    public String toString() {
        return "Person [name=" + name + ", age=" + age + ", gender=" + gender
                + "]";
    }
    public Person() {
        super();
        // TODO Auto-generated constructor stub
    }
    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;
    }
    public String getGender() {
        return gender;
    }
    public void setGender(String gender) {
        this.gender = gender;
    }
    public Person(String name, int age, String gender) {
        super();
        this.name = name;
        this.age = age;
        this.gender = gender;
    }
    
}

package cn.code.domain;


import java.util.HashMap;
import java.util.Map;

import org.apache.commons.beanutils.BeanUtils;
import org.junit.Test;

public class Demo1 {
    @Test
    public void fun1() throws Exception{
        String className = "cn.code.domain.Person";
        Class clazz = Class.forName(className);
        Object p = clazz.newInstance();
        BeanUtils.setProperty(p, "name", "张三");
        BeanUtils.setProperty(p, "age", "23");
        BeanUtils.setProperty(p, "gender", "boy");
        
        System.out.println(p.toString());
    }
    @Test
    public void fun2() throws Exception{
        Map<String,String>map = new HashMap<String, String>();
        map.put("username", "killy");
        map.put("password", "123");
        User user = new User();
        BeanUtils.populate(user, map);
        System.out.println(user);
    }
}

package cn.code.domain;

public class User {
    private String username;
    private int password;
    @Override
    public String toString() {
        return "user [username=" + username + ", password=" + password + "]";
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public int getPassword() {
        return password;
    }
    public void setPassword(int password) {
        this.password = password;
    }
    public User() {
        super();
        // TODO Auto-generated constructor stub
    }
    public User(String username, int password) {
        super();
        this.username = username;
        this.password = password;
    }
    
}

package cn.code.CommonUtils;

import java.util.Map;
import java.util.UUID;

import org.apache.commons.beanutils.BeanUtils;

public class CommonUtils {
    public static String uuid(){
        return UUID.randomUUID().toString().replace("-","").toUpperCase();
    }
    public static<T> T toBean(Map map,Class<T> clazz){
        try{
            T bean = clazz.newInstance();
            BeanUtils.populate(bean,map);
            return bean;
        }catch(Exception e){
            throw new RuntimeException(e);
        }
    }
}

依赖jar包：apache_commons_beanUtils  commmons_logging