根据request给实体类设值

 /**
     * 根据request给实体类设值
     * 
     * @author 2011-1-14
     * @param objClass
     * @param request
     * @return
     */
    public static Object setBeanProperty(Class<?> objClass, HttpServletRequest request) {
	Object obj = null;
	try {
	    obj = objClass.newInstance();
	    Field[] fields = objClass.getDeclaredFields(); // 获取自定义字段
	    Class<?> fieldType; // 字段声明类型
	    String fieldName; // 字段名称

	    for (int i = 0; i < fields.length; i++) {
		fieldName = fields[i].getName();
		// 如果为空则跳过该字段
		if (request.getParameter(fieldName) == null) {
		    continue;
		}

		fieldType = fields[i].getType(); // 表示字段的声明类型

		fields[i].setAccessible(true); // 设置不检查该字段是否可访问

		//根据字段不同的类型,转换数据
		if (fieldType == int.class || fieldType == Integer.class) {

		    fields[i].set(obj, Integer.valueOf(request.getParameter(fieldName)));

		} else if (fieldType == long.class || fieldType == Long.class) {

		    fields[i].set(obj, Long.valueOf(request.getParameter(fieldName)));

		} else if (fieldType == float.class || fieldType == Float.class) {

		    fields[i].set(obj, Float.valueOf(request.getParameter(fieldName)));

		} else if (fieldType == double.class || fieldType == Double.class) {

		    fields[i].set(obj, Double.valueOf(request.getParameter(fieldName)));

		} else if (fieldType == boolean.class || fieldType == Boolean.class) {

		    fields[i].set(obj, Boolean.valueOf(request.getParameter(fieldName)));

		} else if (fieldType == Date.class) {
		    
		    SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS");
		    fields[i].set(obj,formatter.parse(request.getParameter(fieldName)));

		} else if(fieldType == String.class){
		    
		    fields[i].set(obj, request.getParameter(fieldName));
		    
		}else {
		    throw new Exception(fieldName + "字段未知类型:" + fieldType.toString());
		}
	    }
	} catch (InstantiationException e) {
	    e.printStackTrace();
	} catch (IllegalAccessException e) {
	    e.printStackTrace();
	} catch (SecurityException e) {
	    e.printStackTrace();
	} catch (IllegalArgumentException e) {
	    e.printStackTrace();
	} catch (Exception e) {
	    e.printStackTrace();
	}
	return obj;
    }