java利用反射实现动态代理示例

package com.et59.cus.domain.dao.ex;

import java.lang.reflect.field;
import java.lang.reflect.method;
import java.lang.reflect.modifier;

import org.apache.log4j.logger;
/**
 *
 * <p>title: reflectutil.java</p>
 * <p>description: 反射</p>
 * <p>company: 点滴工作室</p>
 * @version 2.0
 *
 */
public class reflectutil {

    private static final logger log = logger.getlogger(reflectutil.class);

    @suppresswarnings({ "rawtypes", "unchecked" })
 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 {
            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 (log.isdebugenabled()) {
               // log.debug("me异常-------->:"+me);
            }
            try {
                field field = clazz.getdeclaredfield(fname);
                if (!modifier.ispublic(field.getmodifiers())) {
                    field.setaccessible(true);
                }
                field.set(target, fvalue);
            } catch (exception fe) {
                if (log.isdebugenabled()) {
                    log.debug("fe----------->"+fe);
                }
            }
        }
    }
}