Json工具類封裝(字符串與對象的轉換)

public class JsonUtils {

    private static ObjectMapper objectMapper = new ObjectMapper();
    
    //對象轉字符串
    public static <T> String obj2String(T obj){
        if (obj == null){
            return null;
        }
        try {
            return obj instanceof String ? (String) obj : objectMapper.writeValueAsString(obj);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
    
    //字符串轉對象
    public static <T> T string2Obj(String str,Class<T> clazz){
        if (StringUtils.isEmpty(str) || clazz == null){
            return null;
        }
        try {
            return clazz.equals(String.class)? (T) str :objectMapper.readValue(str,clazz);
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}