1.將對象轉(zhuǎn)換為JSON字符串，返回值為一個JSON字符串
public static String toJson(Object value) {try {return mapper.writeValueAsString(value);} catch (Exception e) {e.printStackTrace();}return null;}2. 將JSON字符串轉(zhuǎn)換為實體對象，返回值為實體對象
public static <T> T toObject(String json, Class<T> valueType) {Assert.hasText(json);Assert.notNull(valueType);try {SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");mapper.setDateFormat(dateFormat);return mapper.readValue(json, valueType);} catch (Exception e) {e.printStackTrace();}return null;新聞熱點
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