Springboot配置请求入参和出参json数据格式的示例
小编给大家分享一下Spring boot配置请求入参和出参json数据格式的示例,希望大家阅读完这篇文章之后都有所收获,下面让我们一起去探讨吧!
创新互联公司是创新、创意、研发型一体的综合型网站建设公司,自成立以来公司不断探索创新,始终坚持为客户提供满意周到的服务,在本地打下了良好的口碑,在过去的10年时间我们累计服务了上千家以及全国政企客户,如石牌坊等企业单位,完善的项目管理流程,严格把控项目进度与质量监控加上过硬的技术实力获得客户的一致称扬。
请求入参数据格式配置,以日期格式为例:
编写日期编辑器类:
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)); } } }
其中用到的日期工具类如下:
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 HashMapDATE_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 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(); } } }
把编辑器加入web的绑定初始化配置:
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 */ @Configuration public 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; } }
入参的日期数据格式配置完成,可以接收的日期格式在日期工具类可以看到,有以下几种:yyyy-mm-dd,时间戳,yyyy-mm-dd hh:mm:ss等。
请求出参格式配置,包括空字符串,空数组,以及日期格式化输出
编写空字符串序列器:
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(""); } }
编写空数组序列器
/** * 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(); } }
编写日期序列器
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()); } }
编写总序列器
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 ListchangeProperties(SerializationConfig config, BeanDescription beanDesc, List 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); } }
把总序列器加入web配置中:
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 */ @Configuration public 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; } }
请求出参配置完成,出参格式如下:null的字符串输出为空字符串,null的数组输出为空数组,date数据格式输出为时间戳。
看完了这篇文章,相信你对“Spring boot配置请求入参和出参json数据格式的示例”有了一定的了解,如果想了解更多相关知识,欢迎关注创新互联行业资讯频道,感谢各位的阅读!
分享题目:Springboot配置请求入参和出参json数据格式的示例
网页路径:http://ybzwz.com/article/pcddij.html