使用 WebBindingInitializer 來對string類型參數進行過濾,可是這種方式只能處理query參數不能處理body參數web
代碼例子:json
/** * 處理String類型的請求參數,若是是空字符串則轉爲null,不然頭尾去空 * 若是是Body,這種方式處理不了 * * @create: 2018-11-08 17:10 **/ @ControllerAdvice public class StringInitBinder { @InitBinder public void initBinder(WebDataBinder binder, WebRequest request) { binder.registerCustomEditor(String.class, new StringTrimmerEditor(true)); } }
/** * @Author qinming * @Description 自定義Jackson ObjectMapper SimpleModule的擴展來去除@RequestBody解析實體類中字符串屬性的首尾空格 * @Date 下午6:06 2018/11/27 **/ @Component public class StringTrimModule extends SimpleModule { private static final long serialVersionUID = -1269300095841307512L; public StringTrimModule() { addDeserializer(String.class, new StdScalarDeserializer<String>(String.class) { private static final long serialVersionUID = 1252572680057675269L; @Override public String deserialize(JsonParser jsonParser, DeserializationContext ctx) throws IOException { return jsonParser.getValueAsString().trim(); } }); } }
自定參數解析,須要先自定義一個註解。以ID參數解密爲例進行說明:app
1.自定義註解 @IdDecryptide
/** * @create: 2018-11-06 14:23 **/ @Target({ElementType.PARAMETER}) @Retention(RetentionPolicy.RUNTIME) public @interface IdDecrypt { String value() default "AES"; }
2. 自定義參數解析spa
/** * ID參數解析 * **/ public class IdDecryptResolver implements HandlerMethodArgumentResolver { // 斷定參數是否支持解析 @Override public boolean supportsParameter(MethodParameter methodParameter) { return methodParameter.hasParameterAnnotation(IdDecrypt.class); } @Override public Object resolveArgument(MethodParameter methodParameter, ModelAndViewContainer modelAndViewContainer, NativeWebRequest nativeWebRequest, WebDataBinderFactory webDataBinderFactory) throws Exception { HttpServletRequest request = nativeWebRequest.getNativeRequest(HttpServletRequest.class); Object arg = null; String[] paramValues = request.getParameterValues(methodParameter.getParameterName()); if (paramValues != null) { arg = (paramValues.length == 1 ? paramValues[0] : paramValues); } //根據參數名稱獲取WebDataBinder WebDataBinder binder = webDataBinderFactory.createBinder(nativeWebRequest, null, methodParameter.getParameterName()); //傳入解析後的值,並根據參數類型進行轉換 arg = binder.convertIfNecessary(SerializerUtil.decryptAES(URLDecoder.decode(String.valueOf(arg), "UTF-8")), methodParameter.getParameterType(), methodParameter); return arg; } }
3. 在配置WebMvcConfig中添加自定義的ArgumentResolver(也就是上面的IdDecryptResolver)code
@Configuration public class WebMvcConfig extends WebMvcConfigurerAdapter { ...... @Override public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) { //添加自定義Resolver argumentResolvers.add(new IdDecryptResolver()); super.addArgumentResolvers(argumentResolvers); } }
4. 在參數上添加該註解orm
@GetMapping("/info") public ApiData info(@IdDecrypt Long id) { LOGGER.info("Controller.info", "id:{}", id); return newApiData(); }
1.我這邊碰到的日期轉換是 時間戳 -> 日期類型 ,so個人配置是這樣的blog
@Configuration public class WebMvcConfig extends WebMvcConfigurerAdapter { 。。。。。。 /** * 時間戳轉日期的轉換器 * * @param registry */ @Override public void addFormatters(FormatterRegistry registry) { registry.addConverter(new Converter<String, Date>() { @Override public Date convert(String source) { if (StringUtils.isNotBlank(source)) { String decode = Codec.decode(source);
//正則判斷時間戳參數格式 if (Pattern.compile(PatternConstant.TIME_STAMP_PATTERN).matcher(decode).matches()) { return new Date(Long.parseLong(decode)); } else { throw new RuntimeException("時間戳格式錯誤!"); } } return null; } }); super.addFormatters(registry); } }