数据类型转化工具

旧城等待， 2022-10-29 01:57 230阅读 0赞

public class DataTypeConvertUtil {
        private static final Logger LOGGER = LoggerFactory.getLogger(DataTypeConvertUtil.class);
    
        private static Map<String, Method> convertMap = Maps.newHashMap();
    
        private static Map<String, Class<?>> CONVERT_CLASS_MAP = Maps.newHashMap();
    
        static {
            try {
                Class cls = SafeParserUtil.class;
                convertMap.put("Int", cls.getMethod("parseInt", Object.class));
                convertMap.put("Long", cls.getMethod("parseLong", Object.class));
                convertMap.put("String", cls.getMethod("parseString", Object.class));
                convertMap.put("Double", cls.getMethod("parseDouble", Object.class));
                convertMap.put("Boolean", cls.getMethod("parseBoolean", Object.class));
                convertMap.put("Byte", cls.getMethod("parseByte", Object.class));
                convertMap.put("Short", cls.getMethod("parseShort", Object.class));
                convertMap.put("Float", cls.getMethod("parseFloat", Object.class));
            } catch (Exception e) {
                LOGGER.error("初始化convertMap失败", e);
            }
    
            try {
                CONVERT_CLASS_MAP.put("Map", Map.class);
                CONVERT_CLASS_MAP.put("List", List.class);
            } catch (Exception e) {
                LOGGER.error("初始化CONVERT_CLASS_MAP失败", e);
            }
        }
    
        public static Object convert(Object value, String resultType) throws ActuatorExeException {
            if (value == null) {
                return null;
            }
    
            Method method = convertMap.get(resultType);
            if (method != null) {
                try {
                    return method.invoke(null, value);
                } catch (Exception e) {
                    throw new ActuatorExeException(PlatformConstant.CONVERT_ERROR_CODE,
                            "类型转换失败, resultType:%s, value:%s", resultType, value);
                }
            }
    
            Class<?> clazz = CONVERT_CLASS_MAP.get(resultType);
            if (clazz != null && clazz.isAssignableFrom(value.getClass())) {
                return value;
            }
    
            throw new ActuatorExeException(PlatformConstant.CONVERT_ERROR_CODE, "不支持指定的类型转换, resultType: " + resultType);
        }
    }