自己写的转换器，包含各种基本的数据类型。

import java.lang.reflect.Field; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpServletRequest; public class RequestUtil { /** * 获得对象所有属性的名称及类型的方法 * @param o * @return */ private static List<ObjectInfo> getObjectProperties(Object o){ List<ObjectInfo> infos = new ArrayList<ObjectInfo>(); Class c = o.getClass(); Field[] fs = c.getDeclaredFields(); for(int i = 0 ; i < fs.length ; i++){ String name = fs[i].getName(); Class t = fs[i].getType(); ObjectInfo inf = new ObjectInfo(name,t); infos.add(inf); } return infos; } private static String getSetMethodName(String fieldName){ char[] cs = fieldName.toCharArray(); int t = (int)cs[0]; if(t != (int)'_' && t != '$' && (t < 65 || t > 91)){ cs[0] = (char)(t - 32); } return "set" + new String(cs); } private static void setObjectValue(Object val,ObjectInfo oi,Object o){ String setMethodName = getSetMethodName(oi.getClassname()); Class c = o.getClass(); try { Method m = c.getMethod(setMethodName, new Class[]{oi.getClassType()}); m.invoke(o, new Object[]{val}); } catch (Exception e) { e.printStackTrace(); } } public static void populate(Object o , HttpServletRequest request){ //查找o中所有属性（具备getter,stter方法） List<ObjectInfo> infos = getObjectProperties(o); // for(int i = 0 ; i < infos.size() ; i++){ ObjectInfo oi = infos.get(i); String cname = oi.getClassname(); String pValueStr = request.getParameter(cname); if(pValueStr != null){ Class c = oi.getClassType(); Converter converter = ConverterUtils.get(c); Object val = converter.convert(c, pValueStr); //给对象设置值 setObjectValue(val, oi, o); } } } }