reflectutil.java

jsf+spring+ibatis 的一个程序,主要用来介绍JSF程序.

package com.wxd.common.paging;

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

import org.apache.log4j.Logger;

public class ReflectUtil {
	public static Logger logger = Logger.getLogger(LimitSqlExecutor.class);

	public static void setFieldValue(Object target, String fname, Class ftype,
			Object fvalue) {
		if (target == null
				|| fname == null
				|| "".equals(fname)
				|| (fvalue != null && !ftype
						.isAssignableFrom(fvalue.getClass()))) {
			return;
		}
		Class clazz = target.getClass();
		try {
			Class[] _ftype = { ftype };
			Object[] _fvalue = { fvalue };
			Method method = clazz.getDeclaredMethod("set"
					+ Character.toUpperCase(fname.charAt(0))
					+ fname.substring(1), _ftype);
			if (!Modifier.isPublic(method.getModifiers())) {
				method.setAccessible(true);
			}
			method.invoke(target, _fvalue);

		} catch (Exception me) {
			if (logger.isDebugEnabled()) {
				logger.debug(me);
			}
			try {
				Field field = clazz.getDeclaredField(fname);
				if (!Modifier.isPublic(field.getModifiers())) {
					field.setAccessible(true);
				}
				field.set(target, fvalue);
			} catch (Exception fe) {
				if (logger.isDebugEnabled()) {
					logger.debug(fe);
				}
			}
		}
	}
}