Map与Obj转换

本人工作中根据需要些了如下公共接口，如果有朋友觉得还有更好的方法或者我这种方法有欠缺地方，请留言大家探讨探讨，谢谢！/** * Map<String,Object>转Obj对象 *  * @param <T> *  * @param map key:对应obj中的字段，value:字段的值 * @param objPath 对象全路径 * @return * @throws ClassNotFoundException */public static <T> T map2Obj(Map<String, Object> map, Class<T> clazz) throws ClassNotFoundException {T obj = null;Set<Entry<String, Object>> set = map.entrySet();Iterator<Map.Entry<String, Object>> iterator = set.iterator();String setMethod = "";String key = "";try {try {obj = clazz.getDeclaredConstructor(new Class[] {}).newInstance(new Object[] {});} catch (NoSuchMethodException e1) {System.out.println(obj + "中没有对应的构造方法方法");}while (iterator.hasNext()) {Map.Entry<String, Object> entry = iterator.next();key = entry.getKey();Object value = entry.getValue();Field field = null;try {field = clazz.getDeclaredField(key);} catch (NoSuchFieldException e) {}if (field != null && value != null) {setMethod = "set" + key.substring(0, 1).toUpperCase() + key.substring(1);Method method = null;try {method = clazz.getDeclaredMethod(setMethod, new Class[] { field.getType() });} catch (NoSuchMethodException e) {System.out.println(obj + "中没有对应的方法：" + setMethod);}if (method != null)method.invoke(obj, toObject(value, field));}}} catch (IllegalArgumentException e1) {e1.printStackTrace();} catch (SecurityException e1) {e1.printStackTrace();} catch (InstantiationException e1) {e1.printStackTrace();} catch (IllegalAccessException e1) {e1.printStackTrace();} catch (InvocationTargetException e1) {e1.printStackTrace();}return obj;}public static <T> List<T> listToObject(List<Map<String, Object>> list, Class<?> clazz) {List<T> resultList = null;if (list != null && list.size() > 0) {resultList = new ArrayList<T>();Iterator<Map<String, Object>> iterator = list.iterator();while (iterator.hasNext()) {T obj = null;try {obj = (T) clazz.newInstance();} catch (InstantiationException e) {e.printStackTrace();} catch (IllegalAccessException e) {e.printStackTrace();}Map<String, Object> map = iterator.next();map2Obj(map, obj);resultList.add(obj);}}return resultList;}/** * 类型匹配 *  * @param value * @param field * @return */private static Object toObject(Object value, Field field) {if (field.getType() == String.class) {value = value + "";} else {if (value.equals("null") || "".equals(value)) {value = "0";}if (field.getType() == int.class || field.getType() == Integer.class) {value = Integer.valueOf("" + value);} else if (field.getType() == double.class || field.getType() == Double.class) {value = Double.valueOf("" + value);} else if (field.getType() == float.class || field.getType() == Float.class) {value = Float.valueOf("" + value);} else if (field.getType() == short.class || field.getType() == Short.class) {value = Short.valueOf("" + value);} else if (field.getType() == boolean.class || field.getType() == Boolean.class) {value = Boolean.valueOf("" + value);} else if (field.getType() == byte.class || field.getType() == Byte.class) {value = Byte.valueOf("" + value);} else if (field.getType() == long.class || field.getType() == Long.class) {value = Long.valueOf("" + value);} else if (field.getType() == char.class || field.getType() == Character.class) {value = (Character) value;}}return value;}