Json和Bean的互相转换

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这是Json和Bean的转换

废话不说上代码

	/**
	 * Use jacksonMapper Convert JSON to Bean
	 * 
	 * @param obj
	 *            Source Object
	 * @return JSON String
	 * @throws CommonException
	 */
	public static String bean2JSON(Object obj) throws CommonException {
		String errorMessage = "The operation of bean2Json has been error!";
		ObjectMapper objectMapper = null;
		StringBuffer strBuffer = new StringBuffer("");
		objectMapper = new ObjectMapper();
		try {
			strBuffer.append(objectMapper.writeValueAsString(obj));
		} catch (JsonGenerationException e) {
			throw new CommonException(errorMessage, e);
		} catch (JsonMappingException e) {
			throw new CommonException(errorMessage, e);
		} catch (IOException e) {
			throw new CommonException(errorMessage, e);
		}
		return strBuffer.toString();
	}

	/**
	 * Use jacksonMapper Convert JSON to Bean
	 * 
	 * @param json
	 *            JSON String
	 * @param clz
	 *            Target Class Object
	 * @return Target Object
	 * @throws CommonException
	 */
	public static <T> T json2Bean(String json, Class<T> clz) throws CommonException {
		String errorMessage = "The operation of json2Bean has been error!";
		try {
			ObjectMapper objectMapper = new ObjectMapper();
			return (T) objectMapper.readValue(json, clz);
		} catch (JsonParseException e) {
			throw new CommonException(errorMessage, e);
		} catch (JsonMappingException e) {
			throw new CommonException(errorMessage, e);
		} catch (IOException e) {
			throw new CommonException(errorMessage, e);
		}
	}