Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

import java.util.Map;

public class Main {
    public static <T> T converMap2Object(Map<String, String> map, Class<T> cls) {

        Field[] fields = cls.getDeclaredFields();

        T t = null;
        try {
            t = (T) cls.newInstance();
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }
        for (Field f : fields) {
            f.setAccessible(true);
            invokeSet(t, f.getName(), map.get(f.getName()));
        }
        return t;
    }

    public static void invokeSet(Object o, String fieldName, Object value) {

        Method method = getSetMethod(o.getClass(), fieldName);

        try {

            method.invoke(o, new Object[] { value });

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

    @SuppressWarnings("unchecked")
    public static Method getSetMethod(Class objectClass, String fieldName) {

        try {

            Class[] parameterTypes = new Class[1];

            Field field = objectClass.getDeclaredField(fieldName);

            parameterTypes[0] = field.getType();

            StringBuffer sb = new StringBuffer();

            sb.append("set");

            sb.append(fieldName.substring(0, 1).toUpperCase());

            sb.append(fieldName.substring(1));

            Method method = objectClass.getMethod(sb.toString(), parameterTypes);

            return method;

        } catch (Exception e) {

            e.printStackTrace();

        }

        return null;

    }
}