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JsonMapper 使用 DateUtils 解析日期，以支持更多的格式；优化 JsonFormat 注解非日期类型的自定义

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This commit is contained in:
thinkgem
2025-05-19 10:44:20 +08:00
parent 8f6fd6000f
commit c7d317c1da
1 changed files with 52 additions and 24 deletions
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76
common/src/main/java/com/jeesite/common/mapper/JsonMapper.java
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@@ -19,6 +19,7 @@ import com.jeesite.common.codec.EncodeUtils;
import com.jeesite.common.collect.ListUtils;
import com.jeesite.common.io.PropertiesUtils;
import com.jeesite.common.lang.DateUtils;
import org.apache.commons.lang3.LocaleUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -26,7 +27,6 @@ import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
import java.io.IOException;
import java.lang.reflect.AnnotatedElement;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;
@@ -49,43 +49,33 @@ public class JsonMapper extends ObjectMapper {
private static final class JsonMapperHolder {
private static final JsonMapper INSTANCE = new JsonMapper();
}
public JsonMapper() {
// Spring ObjectMapper 初始化配置，支持 @JsonView
new Jackson2ObjectMapperBuilder().configure(this);
// 设置默认时区、默认日期格式
this.setLocaleTimeZoneDateFormat();
// 为Null时不序列化
this.setSerializationInclusion(Include.NON_NULL);
// 允许单引号
this.configure(Feature.ALLOW_SINGLE_QUOTES, true);
// 允许不带引号的字段名称
this.configure(Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
// 设置默认时区
this.setDefaultTimeZone();
// 设置默认日期格式
this.setDefaultDateFormat();
// 遇到空值处理为空串
// 遇到空值处理为空串
this.enabledNullValueToEmpty();
// 设置输入时忽略在JSON字符串中存在但Java对象实际没有的属性
this.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
// Spring ObjectMapper 初始化配置，支持 @JsonView
new Jackson2ObjectMapperBuilder().configure(this);
}
/**
* 开启日期类型默认格式化
* 设置默认时区、默认日期格式
* @author ThinkGem
*/
public JsonMapper setDefaultTimeZone(){
public JsonMapper setLocaleTimeZoneDateFormat(){
this.setLocale(LocaleUtils.toLocale(PropertiesUtils.getInstance()
.getProperty("lang.defaultLocale", "zh_CN")));
this.setTimeZone(TimeZone.getTimeZone(PropertiesUtils.getInstance()
.getProperty("lang.defaultTimeZone", "GMT+08:00")));
return this;
}
/**
* 开启日期类型默认格式化
* @author ThinkGem
*/
public JsonMapper setDefaultDateFormat(){
this.setDateFormat(new SimpleDateFormat(PropertiesUtils.getInstance()
.getProperty("web.json.defaultDateFormat", "yyyy-MM-dd HH:mm:ss")));
this.setAnnotationIntrospector(new JacksonAnnotationIntrospector() {
private static final long serialVersionUID = 1L;
@Override
@@ -93,7 +83,8 @@ public class JsonMapper extends ObjectMapper {
if (a instanceof AnnotatedMethod) {
AnnotatedElement m = a.getAnnotated();
JsonFormat jf = m.getAnnotation(JsonFormat.class);
if (jf != null) {
if (jf != null && StringUtils.containsAnyIgnoreCase(jf.pattern(),
"yyyy", "MM", "dd", "HH", "mm", "ss", "SSS")) {
return new JsonSerializer<Date>(){
@Override
public void serialize(Date value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
@@ -101,11 +92,48 @@ public class JsonMapper extends ObjectMapper {
jgen.writeString(DateUtils.formatDate(value, jf.pattern()));
}
}
};
};
}
AnnotatedMethod am = (AnnotatedMethod) a;
if (am.getRawReturnType() == Date.class) {
return new JsonSerializer<Date>(){
@Override
public void serialize(Date value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
if (value != null){
jgen.writeString(DateUtils.formatDateTime(value));
}
}
};
}
}
return super.findSerializer(a);
}
@Override
public Object findDeserializer(Annotated a) {
if (a instanceof AnnotatedMethod) {
AnnotatedElement m = a.getAnnotated();
JsonFormat jf = m.getAnnotation(JsonFormat.class);
if (jf != null && StringUtils.containsAnyIgnoreCase(jf.pattern(),
"yyyy", "MM", "dd", "HH", "mm", "ss", "SSS")) {
return new JsonDeserializer<Date>(){
@Override
public Date deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
return DateUtils.parseDate(p.getText(), jf.pattern());
}
};
}
AnnotatedMethod am = (AnnotatedMethod) a;
if (am.getParameterCount() > 0 && am.getParameterType(0).getRawClass() == Date.class) {
return new JsonDeserializer<Date>(){
@Override
public Date deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
return DateUtils.parseDate(p.getText());
}
};
}
}
return super.findDeserializer(a);
}
});
return this;
}
@@ -120,7 +148,7 @@ public class JsonMapper extends ObjectMapper {
public void serialize(Object value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
jgen.writeString(StringUtils.EMPTY);
}
});
});
return this;
}