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  • spring IOC 实现方式

    package util;
    
    /**
     * 模拟一下IOC 
     * @author Steve
     *
     */
    import java.lang.reflect.InvocationTargetException;
    import java.lang.reflect.Method;
    import java.util.HashMap;
    import java.util.Map;
    
    public class Ioc {
        public static void main(String[] args)
                throws IllegalArgumentException, InvocationTargetException, InstantiationException, IllegalAccessException, NoSuchMethodException, SecurityException {
            Class<Pojo> pojoClass = Pojo.class;
            Object obj = pojoClass.newInstance();
            Method[] ms = pojoClass.getDeclaredMethods();
            //模拟一下从xml解析的属性名
            //xml中的配置有属性,  值 两种
            String[] pros = {"name","age","gender"};
            for (String pro : pros) {
                //所以,我们要根据属性,获取到pojo的set方法.
                String methodName = "set"+pro.substring(0, 1).toUpperCase()+pro.substring(1);
                Method m = pojoClass.getDeclaredMethod(methodName, String.class);
                m.invoke(obj,"hqy");
                }
            
            Pojo i = (Pojo)obj;
            System.out.println(i.getAge()+"  "+i.getGender()+i.getName());
        }
    }
    package util;
    
    public class Pojo {
        private String name;
        private String age;
        private String gender;
        public String getAge() {
            return age;
        }
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public void setAge(String age) {
            this.age = age;
        }
        public String getGender() {
            return gender;
        }
        public void setGender(String gender) {
            this.gender = gender;
        }
    }
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  • 原文地址:https://www.cnblogs.com/stevehu1231/p/7967017.html
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