简单工厂模式

设计模式的意义在于：面向业务内容、业务数据结构和系统架构，高内聚低耦合、优雅的将平面逻辑立体化。

package designPattern;

/**
 * 简单工厂模式
 * @author Administrator
 */
public class A2_SimpleFactoryTest {

    /**
     * @param args
     */
    public static void main(String[] args) {
        try {
            Person person = Recruiment.recruiment("student");
            person.experience();

            Person middle_programmer = Recruiment.recruiment("middle_programmer");
            middle_programmer.experience();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }

    public static Person recruiment(String type) {
        if (type.equals("student")) {
            student s = new student();
            return s;
        }
        if (type.equals("middle_programmer")) {
            Middle_programmer mp = new Middle_programmer();
            return mp;
        }
        if (type.equals("senior_programmer")) {
            senior_programmer sp = new senior_programmer();
            return sp;
        }
        return null;
    }
}

interface Person {
    public void experience();
}

class student implements Person {
    public void experience() {
        System.out.println("我是学生没有工作经验....");
    }
}

class Middle_programmer implements Person {
    public void experience() {
        System.out.println("有2年工作经验...");
    }
}

class senior_programmer implements Person {
    public void experience() {
        System.out.println("有5年工作经验...");
    }
}

class Recruiment {
    public static Person recruiment(String type) {
        if (type.equals("student")) {
            student s = new student();
            return s;
        }
        if (type.equals("middle_programmer")) {
            Middle_programmer mp = new Middle_programmer();
            return mp;
        }
        if (type.equals("senior_programmer")) {
            senior_programmer sp = new senior_programmer();
            return sp;
        }
        return null;
    }
}

环境：JDK1.6，MAVEN，tomcat，eclipse

源码地址：http://files.cnblogs.com/files/xiluhua/designPattern.rar

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