运行时给java对象动态的属性赋值
如何给java对象动态的属性赋值（也就是在代码执行的时候才决定给哪个属性赋值）
1.自定义一个工具类ReflectHelper，代码如下所示：
package com.bxsurvey.process.util;import java.lang.reflect.Method;import java.util.Hashtable;import java.util.regex.Pattern;/** * @desc 通过反射来动态调用get 和 set 方法 */public class ReflectHelper {private Class cls;/** * 传过来的对象 */private Object obj;private Hashtable<String, Method> getMethods = null;private Hashtable<String, Method> setMethods = null;public ReflectHelper(Object o) {obj = o;initMethods();}public void initMethods() {getMethods = new Hashtable<String, Method>();setMethods = new Hashtable<String, Method>();cls = obj.getClass();Method[] methods = cls.getMethods();// 定义正则表达式，从方法中过滤出getter / setter 函数.String gs = "get(\\w+)";Pattern getM = Pattern.compile(gs);String ss = "set(\\w+)";Pattern setM = Pattern.compile(ss);// 把方法中的"set" 或者 "get" 去掉,$1匹配第一个String rapl = "$1";String param;for (int i = 0; i < methods.length; ++i) {Method m = methods[i];String methodName = m.getName();if (Pattern.matches(gs, methodName)) {param = getM.matcher(methodName).replaceAll(rapl).toLowerCase();getMethods.put(param, m);} else if (Pattern.matches(ss, methodName)) {param = setM.matcher(methodName).replaceAll(rapl).toLowerCase();setMethods.put(param, m);} else {// org.jeecgframework.core.util.LogUtil.info(methodName + " 不是getter,setter方法！");}}}public boolean setMethodValue(String property,Object object) {Method m = setMethods.get(property.toLowerCase());if (m != null) {try {// 调用目标类的setter函数m.invoke(obj, object);return true;} catch (Exception ex) {ex.printStackTrace();return false;}}return false;}} 2.用法，假如现在要Person类中的name属性赋值
ReflectHelper reflectHelper = new ReflectHelper(new Person());//创建工具类对象reflectHelper.setMethodValue("name", "值");// 动态调用 set方法给文件对象内容赋值