@SuppressWarnings("unchecked") public static <T> T injectModel(Class<T> modelClass, String modelName, HttpServletRequest request, boolean skipConvertError) { Object temp = createInstance(modelClass); if (temp instanceof Model == false) { throw new IllegalArgumentException("getModel only support class of Model, using getBean for other class."); } Model<?> model = (Model<?>)temp; Table table = TableMapping.me().getTable(model.getClass()); if (table == null) { throw new ActiveRecordException("The Table mapping of model: " + modelClass.getName() + " not exists or the ActiveRecordPlugin not start."); } String modelNameAndDot = StrKit.notBlank(modelName) ? modelName + "." : null; Map<String, String[]> parasMap = request.getParameterMap(); TypeConverter converter = TypeConverter.me(); // 对 paraMap进行遍历而不是对table.getColumnTypeMapEntrySet()进行遍历,以便支持 CaseInsensitiveContainerFactory // 以及支持界面的 attrName有误时可以感知并抛出异常避免出错 for (Entry<String, String[]> entry : parasMap.entrySet()) { String paraName = entry.getKey(); String attrName; if (modelNameAndDot != null) { if (paraName.startsWith(modelNameAndDot)) { attrName = paraName.substring(modelNameAndDot.length()); } else { continue ; } } else { attrName = paraName; } Class<?> colType = table.getColumnType(attrName); if (colType == null) { if (skipConvertError) { continue ; } else { throw new ActiveRecordException("The model attribute " + attrName + " is not exists."); } } try { String[] paraValueArray = entry.getValue(); String paraValue = (paraValueArray != null && paraValueArray.length > 0) ? paraValueArray[0] : null; Object value = paraValue != null ? converter.convert(colType, paraValue) : null; model.set(attrName, value); } catch (Exception e) { if (skipConvertError == false) { throw new RuntimeException("Can not convert parameter: " + paraName, e); } } } return (T)model; }
项目:JFinal
form 表单的一个字段传递数组这种方式本来就用得少