struts1.x 中提交form[]表单数组以及后台解析

entity中这样写：

private String xxx; //setXxx、getXxx方法

...

form中可以这样写：

private String[] xxx; //setXxx、getXxx方法

...

提交到后台之后这样解析：

public static synchronized Collection getCollection(HttpServletRequest parameters,      Class entity) throws      InvocationTargetException,      InstantiationException,      IllegalAccessException {    Object dto = entity.newInstance();    PropertyDescriptor origDescriptors[] = PropertyUtils.getPropertyDescriptors(dto);    String propName = null;        int length = 0;        String[] tmp = null;        for(int i = 0; i < origDescriptors.length; i++){          propName = origDescriptors[i].getName();          //属性不能是class          if(!"class".equals(propName)){            tmp = parameters.getParameterValues(propName);            if(null != tmp){              length = tmp.length;              break;            }          }        }    Collection result = new ArrayList();    for (int j = 0; j < length; j++) {      Object item = entity.newInstance();      for (int i = 0; i < origDescriptors.length; i++) {        if (origDescriptors[i].getReadMethod() == null) {          if (log.isTraceEnabled()) {            log.trace("-->No getter on JavaBean for " + origDescriptors[i].getName() + ", skipping");          }          continue;        }        String name = origDescriptors[i].getName();        if ("class".equals(name)) {          continue; // No point in trying to set an object's class        }            Object value = null;            tmp =  parameters.getParameterValues(name);            if(null != tmp)              value = tmp[j];            BeanUtils.copyProperty(item, name, value);      }      result.add(item);    }    return result;  }

然后根据生成的集合进行后台数据处理即可。