Spring boot如何配置请求的入参和出参json数据格式

import first.zxz.tools.DateUtil;import java.beans.PropertyEditorSupport;/** * 日期编辑器 * * @author zhangxz * @date 2019-11-12 20:01 */public class DateEditor extends PropertyEditorSupport { /**  * 是否将null转换为空字符串  */ private final boolean nullAsEmpty; public DateEditor() {  this(true); } public DateEditor(boolean nullAsEmpty) {  this.nullAsEmpty = nullAsEmpty; } @Override public void setAsText(String text) {  if (text == null) {   if (nullAsEmpty) {    setValue("");   } else {    setValue(null);   }  } else {   setValue(DateUtil.parse(text));  } }}

public class DateUtil { private static final String DATE_FORMAT_1 = "yyyy-MM-dd"; private static final String DATE_FORMAT_2 = "yyyy/MM/dd"; private static final String DATE_FORMAT_3 = "yyyyMMdd"; private static final String DATE_TIME_FORMAT_1 = DATE_FORMAT_1 + " HH:mm:ss"; private static final String DATE_TIME_FORMAT_2 = DATE_FORMAT_2 + " HH:mm:ss"; private static final String DATE_TIME_FORMAT_3 = DATE_FORMAT_3 + "HHmmss"; //key为正则表达式，value为对应的日期格式 private static final HashMap<String, String> DATE_REGEX_FORMATTER_MAP = new HashMap<>(); static {  DATE_REGEX_FORMATTER_MAP.put(DateRegexConst.DATE_1, DATE_FORMAT_1);  DATE_REGEX_FORMATTER_MAP.put(DateRegexConst.DATE_2, DATE_FORMAT_2);  DATE_REGEX_FORMATTER_MAP.put(DateRegexConst.DATE_3, DATE_FORMAT_3);  DATE_REGEX_FORMATTER_MAP.put(DateRegexConst.DATE_TIME_1, DATE_TIME_FORMAT_1);  DATE_REGEX_FORMATTER_MAP.put(DateRegexConst.DATE_TIME_2, DATE_TIME_FORMAT_2);  DATE_REGEX_FORMATTER_MAP.put(DateRegexConst.DATE_TIME_3, DATE_TIME_FORMAT_3); } //提示语：所有可用的日期格式 public static final String ALL_USABLE_DATE_FORMATS = DATE_REGEX_FORMATTER_MAP.values().toString() + "，以及时间戳；"; /**  * 根据输入的字符串，进行格式化，并输入日期数据  * 注意：格式化之前，会进行null和空字符串过滤；格式化时，会去除字符串两端的空字符串  *  * @param formattedDateStr 日期字符串数据  * @return java.util.Date  * @author Zxz  * @date 2019/11/6 15:07  **/ public static Date parse(String formattedDateStr) {  if (formattedDateStr == null || formattedDateStr.trim().length() <= 0) {   throw new StringEmptyException();  }  for (Map.Entry<String, String> entry : DATE_REGEX_FORMATTER_MAP.entrySet()) {   if (formattedDateStr.trim().matches(entry.getKey())) {    SimpleDateFormat simpleDateFormat = new SimpleDateFormat(entry.getValue());    try {     return simpleDateFormat.parse(formattedDateStr.trim());    } catch (ParseException e) {     e.printStackTrace();     throw new DateFormatException();    }   }  }  try {   Long aLong = Long.valueOf(formattedDateStr);   return new Date(aLong);  } catch (NumberFormatException e) {   //格式不匹配   throw new DateFormatException();  } }}

import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.format.support.FormattingConversionService;import org.springframework.validation.Validator;import org.springframework.web.bind.support.ConfigurableWebBindingInitializer;import simple.proj.zxz.play.config.editor.DateEditor;import java.util.Date;/** * 配置请求 bean数据接收格式，例如date格式 * * @author zhangxz * @date 2019-11-12 19:56 */@Configurationpublic class WebBindingInitializerConfig { /**  * 配置请求入参数据格式，参考{@link simple.proj.zxz.play.config.editor.DateEditor}  *  * @param mvcConversionService mvc版本业务  * @param mvcValidator   mvc校验器  * @return org.springframework.web.bind.support.ConfigurableWebBindingInitializer  * @author zhangxz  * @date 2019/11/13 10:40  */ @Bean public ConfigurableWebBindingInitializer configurableWebBindingInitializer(FormattingConversionService mvcConversionService, Validator mvcValidator) {  ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();  initializer.setConversionService(mvcConversionService);  initializer.setValidator(mvcValidator);  initializer.setPropertyEditorRegistrar(propertyEditorRegistry -> {   //PropertyEditor 非线程安全   propertyEditorRegistry.registerCustomEditor(Date.class, new DateEditor());  });  return initializer; }}

import com.fasterxml.jackson.core.JsonGenerator;import com.fasterxml.jackson.core.JsonProcessingException;import com.fasterxml.jackson.databind.JsonSerializer;import com.fasterxml.jackson.databind.SerializerProvider;import java.io.IOException;/** * 空字符串序列器 * * @author zhangxz * @date 2019-11-12 22:05 */public class NullStringSerializer extends JsonSerializer { @Override public void serialize(Object o, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)   throws IOException, JsonProcessingException {  jsonGenerator.writeString(""); }}

/** * 空数组或集合序列器 * * @author zhangxz * @date 2019-11-12 22:04 */public class NullArraySerializer extends JsonSerializer { @Override public void serialize(Object value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {  jgen.writeStartArray();  jgen.writeEndArray(); }}

import com.fasterxml.jackson.core.JsonGenerator;import com.fasterxml.jackson.databind.JsonSerializer;import com.fasterxml.jackson.databind.SerializerProvider;import java.io.IOException;import java.util.Date;/** * 日期序列器 * * @author zhangxz * @date 2019-11-12 23:01 */public class DateSerializer extends JsonSerializer { /**  * 日期序列化方法，返回时间戳格式  *  * @param o     数值  * @param jsonGenerator  json生成器  * @param serializerProvider 序列器  * @author zhangxz  * @date 2019/11/13 10:41  */ @Override public void serialize(Object o, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {  jsonGenerator.writeNumber(((Date) o).getTime()); }}

import com.fasterxml.jackson.databind.BeanDescription;import com.fasterxml.jackson.databind.JsonSerializer;import com.fasterxml.jackson.databind.SerializationConfig;import com.fasterxml.jackson.databind.ser.BeanPropertyWriter;import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;import java.util.Collection;import java.util.Date;import java.util.List;/** * 总序列器 * * @author zhangxz * @date 2019-11-12 22:07 */public class GeneralSerializer extends BeanSerializerModifier { //空数组 private JsonSerializer _nullArraySerializer = new NullArraySerializer(); //空字符串 private JsonSerializer _nullStringSerializer = new NullStringSerializer(); //日期类型 private JsonSerializer dateSerializer = new DateSerializer(); @Override public List<BeanPropertyWriter> changeProperties(SerializationConfig config, BeanDescription beanDesc,              List<BeanPropertyWriter> beanProperties) {  for (BeanPropertyWriter beanProperty : beanProperties) {   if (isArrayType(beanProperty)) {    beanProperty.assignNullSerializer(this._nullArraySerializer);   } else if (isStringType(beanProperty)) {    beanProperty.assignNullSerializer(this._nullStringSerializer);   } else if (isDateType(beanProperty)) {    beanProperty.assignSerializer(this.dateSerializer);   }  }  return beanProperties; } private boolean isStringType(BeanPropertyWriter writer) {  Class clazz = writer.getType().getRawClass();  return clazz == String.class; } private boolean isDateType(BeanPropertyWriter writer) {  return Date.class == writer.getType().getRawClass(); } private boolean isArrayType(BeanPropertyWriter writer) {  Class clazz = writer.getType().getRawClass();  return clazz.isArray() || Collection.class.isAssignableFrom(clazz); }}

import com.fasterxml.jackson.databind.ObjectMapper;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;import simple.proj.zxz.play.config.serializer.GeneralSerializer;/** * @description: 配置jackson 序列器 * @author: zhangxz * @create: 2019-11-12 22:02 */@Configurationpublic class JacksonConfig { /**  * 出参数据格式配置，参考类 {@link simple.proj.zxz.play.config.serializer.GeneralSerializer}  *  * @return org.springframework.http.converter.json.MappingJackson2HttpMessageConverter  * @author zhangxz  * @date 2019/11/13 10:34  */ @Bean public MappingJackson2HttpMessageConverter mappingJacksonHttpMessageConverter() {  final MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();  ObjectMapper mapper = converter.getObjectMapper();  mapper.setSerializerFactory(mapper.getSerializerFactory().withSerializerModifier(new GeneralSerializer()));  return converter; }}